Answer: C
Step-by-step explanation:
For our unknown value x, the opposite side = 10 and the adjacent side = 18, using this information you can use SOH CAH TOA.
TOA refers to opposite over adjacent, which would be
tan x = 10/18.
Hope this helps!
I NEED HELP ON THIS ASAP!!
The values of the exponential function are calculated below and as x increases, the exponential function increases.
What are the values of the functionIn the table of function given, we can calculate the value of f(x) as it relates to x.
The given exponential function is ;
f(x) = 2ˣ
Substituting the values;
f(-4) = 2⁻⁴ = 1/2⁴ = 1/16
f(-3) = 2⁻³ = 1/2³ = 1/8
f(-2) = 2⁻² = 1/2² = 1/4
f(-1) = 2⁻¹ = 1/2
f(0) = 2⁻⁰ = 1/2⁰ = 1
As the value of x increases, the exponential function increases.
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A packaging manufacturer needs to design a cube-shaped fruit juice box. Each fruit juice box will contain 55 cubic centimeters of apple juice, 40 cubic centimeters of grape juice, and 30 cubic centimeters of mango juice. There will be no empty space inside the juice box. What will be the side length, in centimeters, of the juice box?
The side length of the juice box is given as follows:
5 cm³.
How to obtain the volume of a cube?The volume of a cube of side length a is given by the cube of the side length, as follows:
V(a) = a³.
The total volume of the box in this problem is given as follows:
55 + 40 + 30 = 125 cm³.
Hence the side length of the juice box is given as follows:
a³ = 125
a³ = 5³
a = 5 cm.
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A use case description documents (among other things) ____.
A. a description of alternative courses of action
B. post conditions
C. preconditions
D. assumptions
A use case description documents (among other things) A. a description of alternative courses of action, B. postconditions, and C. preconditions. These elements help provide a clear understanding of how a system should interact with its users and the expected outcomes.
A document can be defined as a form of information that might be useful to a user or set of users1. It can be either digital or nondigital1. Different methods are used to store digital and non-digital documents
There are different types of documents such as job descriptions2, and project descriptions. and technical descriptions5.
A use case description documents (among other things) A. a description of alternative courses of action, B. postconditions, and C.
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Find the amount of money Lee can afford to borrow using the banker's rule. Lee makes $24,700 annually. What is the amount that can be borrowed?
Answer: $31,920.
Step-by-step explanation:
The banker's rule is a method used by lenders to determine the maximum amount of money that a borrower can afford to repay. According to this rule, the maximum amount of money that Lee can afford to borrow is determined by multiplying his annual income by a factor of 0.28.
Using this rule, the amount that Lee can afford to borrow can be calculated as:
Maximum affordable monthly payment = 0.28 x monthly income
Maximum affordable monthly payment = 0.28 x (24700/12)
Maximum affordable monthly payment = 0.28 x 2058.33
Maximum affordable monthly payment = 576.66
Therefore, Lee can afford to make monthly payments of up to $576.66. To calculate the total amount he can borrow, we need to determine the total cost of the loan, including principal and interest.
Assuming a 5-year loan with an interest rate of 4%, the total cost of the loan can be calculated using an online loan calculator or spreadsheet software.
Plugging in the numbers, the total amount that Lee can borrow is approximately $31,920.
It's important to note that this calculation is based on the banker's rule and assumes that Lee has no other debt obligations. Actual loan approval and loan amounts may vary depending on other factors such as credit score, debt-to-income ratio, and other lender-specific requirements.
Juanita covered the outside of a gift box shaped like a rectangular prism with the paper. The box is 3. 2 feet long and 2. 1 feet wide and 2. 7 feet high what could be the closest to the total to the surface area
The total surface area of a gift box is 42.06 square feet
We know that the formula for the surface area of rectangular prism is:
A = 2(lw + wh + lh)
where l is the length
w is the width
and h is the height
The box shaped like a rectangular prism is 3.2 feet long and 2.1 feet wide and 2.7 feet high.
⇒ l = 3.2 ft,
w = 2.1 ft
and h = 2.7 ft
Using above formula the total surface area of the box would be,
A = 2(lw + wh + lh)
A = 2 × [(3.2 × 2.1) + (2.1 × 2.7) + (3.2 × 2.7)]
A = 2 × 21.03
A = 42.06 square feet
Therefore, the required area is 42.06 square feet
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(1 point) a spherical balloon is inflated so that its volume is increasing at the rate of 2.8 ft3/min . how rapidly is the diameter of the balloon increasing when the diameter is 1.5 feet?
The diameter of the balloon is increasing at a rate of approximately 0.79 ft/min when the diameter is 1.5 feet.
We can use the formula for the volume of a sphere to relate the rate of change of volume with the rate of change of diameter
V = (4/3)πr^3 = (1/6)πd^3,
where V is the volume, r is the radius, and d is the diameter.
Taking the derivative with respect to time t, we get
dV/dt = (1/2)πd^2 (dd/dt),
where dd/dt is the rate of change of diameter.
We are given that dV/dt = 2.8 ft^3/min and d = 1.5 ft, so we can solve for dd/dt
dd/dt = (2dV/dt)/(πd^2) = (2(2.8))/(π(1.5)^2) ≈ 0.79 ft/min.
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A researcher wanted to know if an anti-smoking video reduced smoking rates. The video has been extensively designed to reduce smoking using techniques proven in previous research to lower smoking rates. The mean daily consumption rate for 8 people was recorded before and after watching the video. The data are below. Do the 6 steps to inferential statistics to test the researchers question?
The 6 steps for inferential statistics to test researchers question can be:
State the null and alternative hypothesesDetermine the level of significanceIdentify the test statistic and its probability distributionCalculate the test statisticMake a decision and interpret the resultsSummarize the resultsWhat are inferential statistics?It is the branch of statistics that is concerned with obtaining information about a population from a sample of that population. It is used to make inferences, that is, draw conclusions and make predictions about the population based on the information obtained from the sample.
These assertions are based on hypothesis tests, confidence intervals and statistical models.
Therefore, the goal of inferential statistics is to make accurate and reliable statements about the population using limited sample information.
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Brandon has $95,512 in a savings account that earns 5% interest per year. The interest is not compounded. How much will he have in total in 9 months?
HELP i NEED to get my grades up
1. A cylinder has a radius and height of 2.0×10^7
feet and 4.0×10^5
feet respectively. What is the approximate volume of the solid? Leave your answer in terms of π
. Use scientific notation.
2. A cone has a diameter and length of 1.0×10^7
inches and 5.0×10^5
inches respectively. What is the approximate volume of the solid? Leave your answer in terms of π
. Use scientific notation. Round your significant figure to the nearest hundredth.
The approximate volume of the solid is 1.6 × 10^23 π cubic feet.
The approximate volume of the solid is 8.17 × 10^20 π cubic inches.
We have,
1.
The volume V of a cylinder is given by V = πr²h,
where r is the radius and h is the height.
Substituting r = 2.0 × 10^7 feet and h = 4.0 × 10^5 feet.
V = π (2.0 × 10^7)² (4.0 × 10^5)
Simplifying,
V = 1.6 × 10^23 π cubic feet (using scientific notation and leaving the answer in terms of π)
2.
The volume of a cone is given by V = 1/3πr²h,
where r is the radius, h is the height, and we are given the diameter (d = 2r).
Substituting,
d = 1.0 × 10^7 inches, r = d/2 = 5.0 × 10^6 inches, and
h = 5.0 × 10^5 inches, we get:
V = 1/3 π (5.0 × 10^6)² (5.0 × 10^5)
Simplifying,
V = 2.6 × 10^20 π cubic inches
(using scientific notation and leaving the answer in terms of π)
Rounding to the nearest hundredth,
V = 8.17 × 10^20 π cubic inches.
Thus,
The approximate volume of the solid is V = 1.6 × 10^23 π cubic feet.
The approximate volume of the solid is V = 8.17 × 10^20 π cubic inches.
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Constant of proportionality for y=30x
Answer:
k = 30
Step-by-step explanation:
an equation of proportionality has the form
y = kx ← k is the constant of proportionality
y = 30x ← is in this form
with k = 30
In triangle HJK, the exterior angle at K is 139° and the exterior angle at J is 53°. Which is the shortest side of triangle HJK?
The exterior angle at K in triangle HJK is 139°, whereas the exterior angle at J is 53°. Shortest side is JK.
We know that the sum of exterior angles of a triangle is 360°. So,
Exterior angle at K + exterior angle at J + exterior angle at H = 360°
139 + 53 + exterior angle at H = 360
exterior angle at H + 192 = 360
exterior angle at H = 360 - 192
exterior angle at H = 168°
Now, we will calculate the interior angles of triangle HJK. We know that exterior and interior angles are supplementary and makes a sum of 180 degree.
Interior angle K + exterior angle K = 180
Interior angle K + 139 = 180
Interior angle K = 180 - 139 = 41°
Interior angle H + exterior angle H = 180
Interior angle H + 168 = 180
Interior angle H = 180 - 168 = 12°
Interior angle J + exterior angle J = 180
Interior angle J + 53 = 180
Interior angle J = 180 - 53 = 127°
A triangle's shortest side is always opposite the smallest angle. So, in this question the smallest angle is ∠H and the side opposite to it is KJ, hence KJ is the shortest side.
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Use synthetic division and the remainder theorem to find the remainder when is divided by x-c
The remainder of the f(x) = 3x³ + 6x² - 3x + 2 and divisor x + 3 applying synthetic division is equal to -16.
Use synthetic division and the remainder theorem to find the remainder of f(x) when divided by x- c,
Set up the synthetic division table with c on the left side, and the coefficients of f(x) on the top row.
Bring down the first coefficient of f(x) into the first box below the horizontal line.
Multiply c by the number in the first box and write the result in the second box.
Add the number in the second box to the coefficient in the second column, and write the result in the third box.
Repeat steps 3 and 4 until you reach the last box. The number in the last box is the remainder.
Check if the remainder is zero. If it is zero, then x -c is a factor of f(x),
and g(x) = (x- c) is a factor of f(x).
Dividend is equal to,
f(x) = 3x³ + 6x² - 3x + 2
Divisor is equal to,
g(x) = x + 3
Synthetic division is attached in the figure.
Expressed in remainder theorem
3x² -3x + 6 + ( -16 / x + 3 )
Therefore, the remainder of the synthetic division for the given dividend and divisor is equal to -16.
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An initial investment is $14275.
It grows at a rate of 6% a year.
Interest is compounded yearly.
What is the value after 18 years? Round your answer to the nearest
penny.
Answer: $34,828.59
Step-by-step explanation:
We can use the formula for compound interest to solve this problem:
A = P(1 + r)^t
where:
P = the principal (in this case, $14,275)
r = the annual interest rate (6%, or 0.06 as a decimal)
t = the number of years (18)
Plugging in the values we know, we get:
A = $14,275(1 + 0.06)^18
A = $14,275(1.06)^18
A = $34,828.59 (rounded to the nearest penny)
Therefore, the value of the investment after 18 years, rounded to the nearest penny, is $34,828.59
find the equation of a line which passes through the point (0,3) and (6,0)
Answer:
y=-0.5x+3
Step-by-step explanation:
The equation of a line is
y=mx+b, with m being the slope, and b being the y-intercept
The slope is -0.5, and the y intercept is 3
so:
y=-0.5x+3
Answer:
y= -1/2x+3
Expiation:
you can find the equation between two points by using the slope formula and the slope intercept form which is y=mx+b.
By what rational number should -15/56be divided to get -5/7
Answer:
-18.67.
Step-by-step explanation:
If you think math is boring, think again. Here is a fun way to learn how to find the rational number that we need to divide -15/56 by to get -5/7. It's like a puzzle, but with fractions!
First, we need to make -15/56 look nicer. How do we do that? By dividing both the top and the bottom by -1. That's like flipping the sign. So we get 15/56. Much better!
Next, we need to find a mystery number that makes -5/7 and 15/56 equal when we multiply them. That's like finding a missing piece of a jigsaw puzzle. How do we do that? By cross-multiplying! That's when we multiply the top of one fraction by the bottom of the other and set them equal. So we get:
-5 times 56 equals 15 times mystery number
Now we just need to solve for the mystery number. How do we do that? By dividing both sides by 15. That's like cutting a cake into equal slices. So we get:
Mystery number equals (-5 times 56) divided by 15
Now we just need to simplify. How do we do that? By using a calculator or our brains. Either way, we get:
Mystery number equals -18.67
And that's it! We found the rational number that we need to divide -15/56 by to get -5/7. It's -18.67. Isn't math fun?
=
TRIANGLES
Using the centroid of a triangle to find segment lengths
The medians of ABC are AE, BF, and CD. They meet at a single point G.
(In other words, G is the centroid of AABC.)
Suppose BF=30, AG=20, and CG = 10.
Find the following lengths.
Note that the figure is not drawn to scale.
D
B
E
AE =
GD =
GF =
0
M
The values of lengths are: AE = 30, GF = 10, GD = 5 for the given ΔABC.
What is centroid of a triangle?Point at which all three medians of a particular triangle meet is called as a centroid. Median also called as a line segment which connects the vertex of a triangle to the midpoint.
Since G is the centroid of ΔABC, it divides each median in the ratio of 2:1. That is,
AG:GE = 2:1, BG:GF = 2:1, CG:GD = 2:1
First, we know, AG/GE = 2/1 (given, AG = 20)
20 / GE = 2/1
GE = 10
So, given in the median of ΔABC is,
AE = AG + GE (put the values)
AE = 20 + 10
AE = 30
Now, we can use the fact that BG:GF = 2:1 to find the length of GF:
we know, BG/GF = 2/1 (given, BF = 30 = BG + GF)
BG = 2GF
(BF - GF) = 2GF (here, BG = BF - GF)
30 - GF = 2GF
GF = 10
Now, we can use the fact that CG:GD = 2:1 to find the length of GD:
we know, CG/GD = 2/1 (given, CG = 10)
10 / GD = 2/1
GD = 5
Therefore, we get the values are: AE = 30, GF = 10, GD = 5
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Find the lateral and total surface area of the prism
Lateral surface area = 2H(L + W)
Total surface area = 2 LW + 2 WH + 2 HL
How to find the lateral and total surface area of prism?We need to know the prism's dimensions in order to determine its lateral and total surface area for a rectangular base prism. The rectangular prism's length, width, and height are assumed to be L, W, and H, respectively.
The sum of the areas of the rectangular prism's four lateral faces determines its lateral surface area. Since every sidelong face is a square shape with a level of H and a width of one or the other L or W, the parallel surface region is given by:
Lateral Surface Area = 2H(L + W)
The sum of the areas on each of the six faces creates the rectangular prism's total surface area. This incorporates the four sidelong faces, as well as the top and base faces, which are additionally square shapes with aspects L x W. Consequently, the all out surface region is given by:
Total Surface Area = 2(LW + LH + WH)
So, if you know the dimensions of the rectangular prism, you can use these formulas to find its lateral and total surface area.
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B
E
3
3
A
4
с
D
F
4
Enter the length of curve DE given that the curve is 5% longer than line
segment AB.
The length of curve DE, which is 5% longer than line segment AB, is 10.5 units.
To calculate the length of curve DE, we first need to determine the length of line segment AB. Let's say, for example, that line segment AB has a length of 10 units. To find the length of curve DE, we need to add 5% of line segment AB's length to line segment AB.
To calculate 5% of line segment AB's length, we can multiply the length of line segment AB by 0.05. This gives us:
5% of 10 = 0.05 x 10 = 0.5
So, 5% of line segment AB's length is 0.5 units. To find the length of curve DE, we need to add 0.5 units to the length of line segment AB. This gives us:
Length of curve DE = Length of line segment AB + 5% of Length of line segment AB
= 10 + 0.5
= 10.5 units
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Complete Question:
You are trying to help Matt understand the concept of a 5% slack in the line. You explain that having a 5% slack means that the length is 5% longer than it would be if it were completely straight. You compare ABC to Figure DEF, where curve DE is 5% longer than line segment AB.
Enter the length of curve DE given that the curve is 5% longer than line segment AB.
Formula,example and definetion probability of simple event
The probability of a simple event is the likelihood or chance of that event occurring. The formula is P(A) = Number of favorable outcomes / Total number of possible outcomes.
It is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
The formula for the probability of a simple event is:
P(A) = Number of favorable outcomes / Total number of possible outcomes
For example, if we toss a fair coin, the probability of getting heads is:
P(Heads) = 1 (number of favorable outcomes) / 2 (total number of possible outcomes)
So, the probability of getting heads is 0.5 or 50%.
A simple event is an event that has only one possible outcome. For instance, rolling a specific number on a dice, drawing a specific card from a deck of cards, or picking a specific colored ball from a bag of balls are all examples of simple events.
In summary, the probability of a simple event is the ratio of the number of ways the event can happen to the total number of possible outcomes.
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Which factors affect the resistance of a material? Select three options.
Olength
current
thickness
O temperature
voltage
Answer:
They are length, thickness and temperature
Find the first 3 terms of arithmetic sequence if t5=-154 and t9=-274. Find t1, t2, t3 ANSWER QUICKLY PLS
If for an arithmetic-sequence, the terms are t₅ = -154 and t₉ = -274, then the first-three terms are t₁ = -274, t₂ = -244 and t₃ = -214.
An "Arithmetic-Sequence" is defined as a sequence of numbers in which the difference between any two consecutive terms is always the same, which is called the "common-difference".
To find first 3 terms of an "arithmetic-sequence" given the values of t₅ and t₉, we use formulas for "nth-term" of an arithmetic sequence, which is
⇒ tₙ = t₁ + (n - 1)d,
where tₙ = nth term, t₁ = first term, n = position of term in sequence, and d = common-difference,
Given that t₅ = -154 and t₉ = -274,
So,
⇒ t₅ = t₁ + (5 - 1)d = -154,
⇒ t₉ = t₁ + (9 - 1)d = -274,
We first find the "common-difference" by subtracting "t₁" from both sides of first equation and "t₉" from both sides of second-equation,
We get,
⇒ 4d = -154 - t₁,
⇒ 8d = -274 - t₁,
Simplifying further,
We get,
⇒ 4d = 120,
⇒ d = 30,
Now, we substitute it in "4d = -154 - t₁",
We get,
⇒ 4(30) = -154 - t₁,
⇒ 120 = -154 - t₁,
⇒ t₁ = -154 - 120,
⇒ t₁ = -274
So, the first term is = -274;
Now we use "d = 30" to find second and third terms of sequence,
We get,
⇒ t₂ = t₁ + (2 - 1)d = -274 + 30 = -244,
⇒ t₃ = t₁ + (3 - 1)d = -274 + 60 = -214,
Therefore, first three-terms of arithmetic sequence are -274, -244, and -214.
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The given question is incomplete, the complete question is
Find the first 3 terms of arithmetic sequence if t₅ = -154 and t₉ = -274. Find t₁, t₂, t₃.
CAN SOMEONE PLEASEE HELP ME ILL GIVE YOU BRAINLY.. like actual help tho
We can rewrite the following logarithms to common logarithms as follows:
1. 2.3768
2. 3.8173
How to rewrite the logarithmsTo rewrite the logarithms in the common format we can use the following formula.
loga b = log10 b / log10 a
So, we have:
log5 46 = log10 46 / log10 5
Using a calculator, we find that log10 46 ≈ 1.66276 and log10 5 ≈ 0.69897, so:
log5 46 ≈ 1.66276 / 0.69897 ≈ 2.3768
For the second one, we can approach the problem this way:
loga b = log10 b / log10 a
So, we have:
log3 66 = log10 66 / log10 3
Using a calculator, we find that log10 66 ≈ 1.81954 and log10 3 ≈ 0.47712, so:
log3 66 ≈ 1.81954 / 0.47712 ≈ 3.8173
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Q1: Use simple exponential smoothing with a = 0.75 to forecast the water pumps sales for February through May. Assume that the forecast for January was for 25 units. [4 marks) Month January February March April Air-condition sales 28 72 98 126
Therefore, using simple exponential smoothing with a = 0.75, the forecast for water pump sales for February through May are:- February: 26.5 units, March: 37.63 units, April: 72.66 units.
To use simple exponential smoothing with a = 0.75, we first need to calculate the forecast for January:
F1 = 25 (given)
Next, we calculate the forecast for February using the formula:
F2 = a * Y1 + (1 - a) * F1
F2 = 0.75 * 28 + 0.25 * 25
F2 = 26.5 (rounded to one decimal place)
We repeat this process for each month, using the previous month's forecast and the actual sales data for the current month. The results are as follows:
Month Actual Sales Forecast
-------------------------------------
January 28 25
February 72 26.5
March 98 37.63
April 126 72.66
- May: 101.17 units
Hi, I'd be happy to help you with your question. To use simple exponential smoothing with a smoothing constant α = 0.75 to forecast the water pump sales for February through May, given that the forecast for January was 25 units, follow these steps:
Step 1: Start with the given forecast for January, which is 25 units.
Step 2: Calculate the forecast for February using the formula:
Forecast_February = α * (Actual_January) + (1 - α) * Forecast_January
Step 3: Calculate the forecast for March using the formula:
Forecast_March = α * (Actual_February) + (1 - α) * Forecast_February
Step 4: Calculate the forecast for April using the formula:
Forecast_April = α * (Actual_March) + (1 - α) * Forecast_March
Step 5: Calculate the forecast for May using the formula:
Forecast_May = α * (Actual_April) + (1 - α) * Forecast_April
Please note that you have provided sales data for air-conditioning sales, but the question is about water pump sales. If you meant to ask about air-conditioning sales, you can use the given sales data to calculate the forecasts for February through May. If you need help with water pump sales, please provide the correct sales data for January through April, and I will gladly help you with the calculations.
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A farmer has 15 boxes of eggs. There are 6 eggs in each box. Write, as a ratio, the number of eggs in three boxes to the total number of eggs. Give your answer in the simplest form.
Answer:
15 boxes of eggs × 6 eggs/box =
90 total eggs
3 boxes of eggs × 6 eggs/box = 18 eggs
The ratio of the number of eggs in 3 boxes to the total number of eggs is 18/90 = 1/5.
A rectangle with width of 3. There is a vertical line that splits rectangle into two sections with different lengths. One length is x the other is 4. 3(x + 4) represents the area of the rectangle above. Which expression below is equivalent by the Distributive Property? (4 points) a 3x+12 b (3 + x) + 4 c (x + 4) ⋅ 3 d 3x + 4
The expression that is equivalent by the Distributive Property is A 3x+12
this is the only answer that actually uses the distributive property.
What is the Distributive Property?The Distributive Property is a mathematical rule that applies to operations such as multiplication and addition or subtraction. It states that when you multiply a number by a sum or difference of two or more numbers, you can distribute the multiplication over each of the individual terms in the sum or difference.
3 can be multiplied by both x and 4 to get 3x+12 (which is using the distributive property)
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In ΔDEF, the measure of ∠F=90°, EF = 2. 3 feet, and FD = 2. 9 feet. Find the measure of ∠D to the nearest tenth of a degree
In ΔDEF, the measure of angle D = 38.4°
Here in triangle DEF the measure of angle F = 90°
This means that ΔDEF is a right triangle and DE is the hypotenuse.
We need to find the measure of angle D.
Consider the tangent of angle D.
tan(D) = opposite side/ adjacent side
tan(D) = EF / FD
Here, EF = 2.3 feet, and FD = 2.9 feet.
So above equation becomes,
tan(D) = 2.3 / 2.9
tan(D) = 0.79310
D = arctan(0.7931)
D = 38.42°
Therefore, the measure of ∠D = 38.4°
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multiply 1 1/4 by 180
Answer:
225
Step-by-step explanation:
1 1/4 can be put into decimal form:
1.25
So the equation would now be
1.25 times 180
use a calculator:
225
Answer: 225
1 1/4 x 180 = 225
Solve the equation. Round to the nearest tenth if necessary. 110=c^2
Answer:
There are 2 answers:
-10.510.5Step-by-step explanation:
110 = c²
√110 = √c²
±10.5 = c
Solve for c:
[tex]110=c^2[/tex]
Take the square root of 110
[tex]10.48\thickapprox10.5[/tex]
Answer:[tex]\longrightarrow \boxed{\bold{c=10.5}}[/tex]
[tex]\text{so} \ \boxed{110=\bold{10.5^2}}[/tex]
What is the equation of the line that passes through the point (6,2) and has a slope of -1/2?
An equation of the line that passes through the point (6,2) and has a slope of -1/2 is y = -1/2(x) + 5.
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.At data point (6, 2) and a slope of -1/2, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 2 = -1/2(x - 6)
y - 2 = -1/2(x) + 3
y = -1/2(x) + 3 + 2
y = -1/2(x) + 5
Read more on point-slope here: brainly.com/question/24907633
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Four out of 5 freshmen study algebra. How many study
algebra in a class of 400?
Answer:
4/5 ×400
0.8 × 400
=320 freshmen study algebra.
I had used fraction method.