Please help me with this Question
Answer:
Total volume equals V1 - V2
[tex]v = \pi {r}^{2} h[/tex]
[tex]v = 12\pi {r1}^{2} - 12\pi {r2}^{2} [/tex]
where:
r1 = radius 1
r2 = radius 2
Step-by-step explanation:
[tex]r1 \\ v1 = 12\pi {3.5}^{2} \: is \: approx. \: 461.81 {cm}^{3} [/tex]
[tex]r2 \\ v2 = 12\pi {3.3}^{2} \: is \: approx. \: 410.54 {cm}^{3} [/tex]
Total Volume v is
[tex]461.81 - 410.54 = 51.27 {cm}^{3} [/tex]
Which inequality models this problem?
Reiko started a business selling home medical supplies. She spent $6500 to obtain her merchandise, and it costs her $550 per week for expenses. She earns $900 per week for general expenses.
What is the minimum number of weeks it will take for Reiko to make a profit?
a.) 900w ≥ 6500 + 550w
b.) 900w < 6500 + 550w
c.) 900w > 6500 + 550w
d.) 550w > 6500 + 900w
Answer:
C
Step-by-step explanation:
$6500 is a one time purchase so there is no variable attached.
$550 and $900 per week is reoccurring so there will be a variable attached.
Since $900 is what she is making each week, this will be separate from her costs (can eliminate D).
To make a profit, her amount earned will need to be greater than her expenses, so the answer is C.
Find the missing angle
25 points plus a thanks, 5 star and brainliest
tan ? = 22/48
tan ? = 11/24
tan ? = 0.4583
? = 24.62 degrees ( approximately )
[tex]\tan(?)=\dfrac{22}{48} \\\\ ?=\arctan\dfrac{22}{48} \approx24^{\circ}[/tex]
Your parents bought a car for $15,750. The value of the car decreased to $11,025 over the next 3 years. What was the percent decrease in the value of the car?
help! 30 points if you help
Answer:
the first, the third and the last one are true
Step-by-step explanation:
2/3x−1/5x=x−1
Solve this equation
Answer:
x = 1.56 and x = − 0.56
Step-by-step explanation:
2/3x - 1/5x
(2/3 x 5) - (1/5 x 3 )
10/15 - 3/ 15
13 / 15x
show x-1
13 / 15x = x - 1 here we cannot set to 0 so multiply the variable by 15x
15x^2
−15x−13 = 0
quad formula - b+/- sqrt (b^2 - 4 x a x c ) /2
x =1.556724499 and x =−0.556724499
WILL GIVE BRAINLIEST
7x+12+3x-2=180
Answer:
x=17
Step-by-step explanation:
Answer:
X = 17
Step-by-step explanation:
Use M A T H W A Y to solve equations
ced: 7
Assignment: Lesson 2.12 & 2.13
13
Problem ID; PRABMTKN
Explain or show that the point (5,-4) is a solution to this system of equations:
3x - 2y = 23
2x + y = 6
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Answer:
2.15
Step-by-step explanation:
substitute using elimination method and divide ur answers together.
Angle X and angle Y are complementary angles. If m
Plsss help me with this question!!
Answer:
Step-by-step explanation
So mean is average
So total 26 hours studied
and there are 20 students
so 26/20
= 1.3
Perform the indicated operation. Be sure the answer is reduced.
3/n^2-9 + 7/3-n =
This is a basic algebraic fraction question
Step 1: Factor n2-9
Step 2: Rewrite the second fraction
Step 3: Write all the numerators under the least common denominator
Step 4: Expand bracket
Step 5: Collect like terms
I need help asap, please
Answer:
Not congruent
Step-by-step explanation:
They are not congruent because in order of congruency will have an angle(the ones marked with red) -
side( the side that the two triangles shares so are congruent by reflexive property ) -
side ( the one marked with the red line)
and this is not a theorem of congruency.
Watch help video
Find the length of the third side. If necessary, round to the nearest tenth.
20
10
Answer:
Submit Answer
attempt 1 out of 2
Answer:
if it is a right angle triangle then;
step 1 Determine if hypotenuse or side
step 2 calculate a^2+b^2 = c^2 or c^2-b^2 = a^2 if not given hypotenuse.
if it is an obtuse or scalene triangle then
step 1. Determine the triangle third length we use trigonometry as cos (side a/sideb) to determines the angle between a and b.
With such angle for opposite side we can use sin (angle) x side to find hypotenuse or sin(angle) x hypotenuse to find side.
Step-by-step explanation:
Which table represents a linear function?
Answer:
Table 2Step-by-step explanation:
Table 1x- values change 1 to 4y- values change inconsistently and repeat at -2This is not a linear function
Table 2x- values change 1 to 4y- values change consistently, with common difference of -2This is a linear function
Table 3x- values change 1 to 4y- values change inconsistently, the difference is not commonThis is not a linear function
Table 4x- values change 1 to 4y- values change inconsistently, the difference is not commonThis is not a linear function
John's Phone is at 50%. It charges 5% every minute.
Answer:
The phone used 10 minutes to get to 50%, and 20 minutes to full
Describe the translation in each function. Then graph the function.
Y=x^2 + 4
Please give a detailed answer I don't understand
It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.
For graphing:
If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.
If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:
x y
-2 8
-1 5
0 4
1 5
2 8
The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.
This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.
Louise left her home at 11 30 a.m. and cycled to the supermarket.
She got to the supermarket at 12 15 p.m.
Louise cycled at a speed of 12 mph.
(a) (Work out the distance Louise cycled.
We are asked to find the distance Louise cycled.
Speed Louise cycled = 12 mph
Time = 11: 30 am to 12 : 15 pm
= 45 minutes
Convert 45 minutes to hour
60 minutes = 1 hour
45 minutes = 3/4 hour
Speed = Total distance ÷ Total time taken
Distance = Speed × Time
= 12 mph × 3/4 hour
= 36 / 4
= 9 miles
Therefore, the total distance Louise cycled is 9 miles
Read more:
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5
What is the measure of the angle shown?
will give brainliest
Answer:
between 180 and 365 cuz it's a reflex angle
HELP QUICK!
a submarine is located 358 feet below sea level. it ascends 169 feet. At what depth is the submarine now
Answer:
Step-by-step explanation:
the answer is 189
An arcade charges a flat fee for $7 to enter and then $1.25 per ticket to play games. Write an equation that models the charges (C) in terms of the number of tickets (t) that you use:
Answer:
C = 7 + 1.25t
Step-by-step explanation:
7 remains constant
1.25 changes according to t
Answer:
C(t ) = 1.25t + 7
Step-by-step explanation:
We can establish the following equation:
C(t ) = 1.25t + 7
Where:
C(t ) = represents the total cost relative to the t number of tickets used
t = number of tickets used to play games
1.25 = cost per ticket to play games
7 = flat fee to enter the arcade
What is the equation for the graph?
y = 3/2x +2
y = 3/2x +3
y = -2/3x +3
y=-3/2x +3
Answer:
thank You for your points this is the answer
help please i suck at math
Answer:
1. -.2x
2. -.2x
3. -27
Step-by-step explanation:
First add -.65x and .45x to get -.2x then divide 5.4 by -.2 to get x alone and you get x=-27
5 of 8
Here is a list of numbers:
-12, -19, 1, 8, 9, 13, -15, -19, 11, 0
-
State the median.
2. What is the standard form of y = 2/5x - 6
Answer:
3rd option
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Given
y = [tex]\frac{2}{5}[/tex] x - 6 ( multiply through by 5 to clear the fraction )
5y = 2x - 30 ( subtract 5y from both sides )
0 = 2x - 5y - 30 ( add 30 to both sides )
30 = 2x - 5y , or
2x - 5y = 30 ← in standard form
Answer:
I hope this helps.
Step-by-step explanation:
Real numbers can be written in the form a b, where a and b are integers and b≠0, are called __________.
Answer:
Rational number
Step-by-step explanation:
.................
...
HELP QUICKKK PLZZZZ HELP ME RESLLY QUICKK
Answer:
$1.75
Step-by-step explanation:
PLS HELP WILL MARK BRAINLIEST!
Answer:
A. -3a³-6a²+7a-13 Hope this helps :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
A. -3a³-6a²+7a-13
Kathy is a scientist who is working in a remote part of Australia. She earns a salary of $86 840 plus a weekly allowance of $124.80 for working under extreme and isolated conditions. Calculate Kathy’s fortnightly pay.
Answer:
$3589.60
Step-by-step explanation:
Salary per fortnight {52 weeks in a year; 2 weeks in a fortnight}
= 86840 / 52 × 2
= 3340
Allowance per fortnight = 124.80 × 2 = 249.60
Therefore, total fortnightly pay is:
3340 + 249.60 = 3589.60
find the square root of 196 with process.
Answer:
The square root of 196 is 14
Step-by-step explanation:
Prime factorization of 196:
2² × 7²Prime factors of 196 in pairs:
(2 × 2) × (7 × 7)Now square root of 196:
√196 = √(2 × 2) × (7 × 7) √196 = √(2 × 7)²√196 = (2 × 7) = 14Thus, The square root of 196 is 14
-TheUnknownScientist 72
Answer: [tex]\sqrt{196} =14[/tex]
Step-by-step explanation:
[tex]{\begin{array}{c|c}196 & 2 \\ 98&2 \\49 &7 \\7&7 \end {array }[/tex] [tex]196=2\cdot 2\cdot 7\cdot 7=2^4\cdot 7^2 \\\\\sqrt{196} =\sqrt{2^2\cdot 7^2} =2\cdot 7=14[/tex]
The sum of three numbers is 21. The second number is two more than twice the first number. The second number is three times the third number. What are the numbers?
Answer:
The numbers are:
5, 12 and 4
Step-by-step explanation:
a + b + c = 21 Eq. 1
b = 2a +2 Eq. 2
b = 3c Eq. 3
From Eq. 2:
b - 2 = 2a
(b-2)/2 = a Eq. 4
From Eq. 3:
c = b/3 Eq. 5
Replacing Eq. 4 and Eq. 5 in Eq. 1:
(b-2)/2 + b + b/3 = 21
3(b-2)/6 + 6b/6 + 2b/6 = 126/6
3(b-2) + 6b + 2b = 126
(3*b + 3*-2) + 8b = 126
3b - 6 + 8b = 126
11b = 126 + 6
11b = 132
b = 132/11
b = 12
from Eq. 4
(b-2)/2 = a
(12-2)/2 = a
10/2 = a
a = 5
from Eq. 5
c = b/3
c = 12/3
c = 4
Check:
from Eq. 1
a + b + c = 21
5 + 12 + 4 = 21