Answer:
f(2)= -1
Step-by-step explanation:
f(2)=-3(2)+5= -6+5= -1
Answer:
-1
Step-by-step explanation:
f(x)=-3x+5
f(2)= -3(2)+5
=-6+5 = -1
Write the difference and simplest form (5n-3)-(-2n+7) 100 points
Answer:
7n - 10
5n - 3 + 2n - 7
(distribute the negative sign throughout the equation) (then just combine like terms)
Perry and Alberto are selling fruit for a school fundraiser. Customers can buy small boxes of
tangerines and large boxes of tangerines. Perry sold 7 small boxes of tangerines and 12 large
boxes of tangerines for a total of $283. Alberto sold 8 small boxes of tangerines and 6 large
boxes of tangerines for a total of $200. Find the cost each of one small box of tangerines and one
large box of tangerines.
Answer: Small box: $13; Large box: $16
Explanation:
Make two individual equations for Perry and Alberto. Perry's equation would be 7x+12y=283. Alberto's equation would be 8x+6y=200. The best way to find the variables is to change the equations into slope-intercept form. Perry's equation would change to y=-7/12x+283/12 and Albert's equation would change to y=-4/3x+100/3. You can try substituting and plugging -4/3x+100/3 into the other equation, so they equal each other. But, you can also just graph the equation into a graphing calculator or Desmos. When graphing it, the point of intersection should be (13,16), so the cost of a small box tangerines is $13 and a large box of tangerines is $16.
which describes the correlation shown in the scatter plot ?
A.there is a positive correlation in the data set
B.there is a negative correlation in the data set
C.there is no correlation in the data set
D.more points are needed to determine the correlation
Answer:
It is B because it is negative correlation.
Step-by-step explanation:
Everyone keeps saying it's A, but how would it be A if the trend is going down? Make it make sense.
It is B.
Choose all the expressions that are equal to 0.8 × 0.03.
A. 8100×3100
B. 3100×810
C. 80100×3100
D. 310×8010
E. 810×3100
Answer: 8/10 × 3/100
3/100 × 8/10
Step-by-step explanation:
To be able to solve this question, we need to convert the decimals to Fractions. After they've bee converted to Fractions, we can then look at the options given and see the correct option.
0.8 will be 8/10 when converted to a fraction while 0.03 will be 3/100. Therefore, the correct option will be:
= 8/10 × 3/100 or 3/100 × 8/10.
Therefore, options B and E are correct.
Answer:
Step-by-step explanation:
ace
HELP PLZ!!!!! A fireman's ladder is placed against a wall. The bottom of the ladder is 15 ft away from the wall and the top of the ladder touches the wall at a point 80 ft above the ground. Assuming that the slope is positive, what is the slope of the ladder? Round your answer to the nearest hundredth.
Answer:
5.3
Step-by-step explanation:
We know that the bottom of the ladder is 15 feet from the wall, and it touches the wall 80 feet above the ground. Imagine it like two points on a graph. One is at the origin (0,0). That represents the bottom of the ladder. The next one is at (80,15), which represents where the top is. To find slope, we divide rise (y-values) over the run (x-values). The y value increases by 80, while the x increases by 15. 80 divided by 15 equals about 5.3
A man that is 6 feet tall and casts a 4 foot shadow is standing next to a flagpole. The
flagpole casts a shadow of 10 feet. How tall is the flagpole?
a15ft
b60ft
c24ft
d40ft
Answer:
IM JUNNA HAFT TO SAY IS 60
Step-by-step explanation:
Grapes cost $1.87 per pound. How much would it cost for 4.25 pounds of grapes?
Answer:
7.95$
Step-by-step explanation:
1.87 $ per 1 lb
1.87 * 4.25 = 7.95$
Answer:
$7.95 for 4.25 lbs. of grapes
Step-by-step explanation:
so your going to multiply $1.87 by 4.25 to get the total amount of money needing to be paid in or der to buy the 4.25 lbs. of grapes:
$1.87 * 4.25 = 7.9475
now turning it into money by rounding to the hundredths place:
7.9475 = $7.95
So you would have to pay $7.95 for 4.25 lbs. of grapes but logically you would bring 8 dollars to buy it, but down to the cents it would be $7.95.
What are some real world examples of like terms?
Answer:
One twin and One twin have like terms, they're both twins.
The graph shows the distance Henry drives on a trip. What is Henry's speed? Driving Time and Distance 330 300 270 Distance (miles) 240 210 180 150 120 90 60 30 0 1 2 3 4 5 Time (hours) O A. 70 miles per hour OB. 30 miles per hour O C. 60 miles per hour D. 40 miles per hour
Answer:
C
Step-by-step explanation:
which dot thing do i put?
Answer:
arrow to the right no filled in dot
Step-by-step explanation:
the (>) shows you which direction the thing is going
in this situation you just have to simplify the problem
4x+2=10
-2. -2
4x=8
x=2
x>2
Answer:
You would put it on 10 and use the arrow pointing the right with a open dot. (The dot should not be filled in and looks like a bubble.)
Step-by-step explanation:
Solve for side BA
(show your work)
Answer:
BA = 25.5961
Step-by-step explanation:
To solve for side BA, we need to use the correct trigonometric function that relates (from the perspective of angle B) side AC and BA.
AC is Opposite of angle B
BA is the Hypotenuse
The function we use here is Sine. Sine is:
Sin(θ) = Opposite/Hypotenuse
So we simply substitute our information to solve.
Sin(62) = 22.6/BA
BA = 22.6/Sin(62)
Typing this into our calculator we get:
BA = 25.5961
(This is rounded to 4 decimal places)
what is 0.34 round to the nearest tenth
Answer:
0.3
Step-by-step explanation:
We use the following rules to round 0.34 to the nearest tenth:
A) If the last digit in the fractional part of 0.34 is less than 5, then simply remove the last the digit of fractional part.
B) If the last digit in the fractional part of 0.34 is 5 or more and the first digit in the fractional part is less than 9, then add 1 to the first digit of the fractional part and remove the second digit.
C) If the last digit in the fractional part of 0.34 is 5 or more and the first digit in the fractional part is 9 then add 1 to the Integer part and make the fractional part 0.
With 0.34, rule A applies and the answer is: 0.3
Answer:
0.3
Step-by-step explanation:
round down because its 4
Task: Nonpermissible Values for Rational Expressions [30 points] Write a rational expression that has the nonpermissible values x=0 and x=17. Explain your reasoning using complete sentences.
Answer:
A rational expression that has the nonpermissible values [tex]x = 0[/tex] and [tex]x = 17[/tex] is [tex]f(x) = \frac{4}{x\cdot (x-17)}[/tex].
Step-by-step explanation:
A rational expression has a nonpermissible value when for a given value of [tex]x[/tex], the denominator is equal to zero. In addition, we assume that both numerator and denominator are represented by polynomials, such that:
[tex]f(x) = \frac{p(x)}{q(x)}[/tex] (1)
Then, the factorized form of [tex]q(x)[/tex] must be:
[tex]q(x) = x\cdot (x-17)[/tex] (2)
If we know that [tex]p(x) = 4[/tex], then the rational expression is:
[tex]f(x) = \frac{4}{x\cdot (x-17)}[/tex] (3)
A rational expression that has the nonpermissible values [tex]x = 0[/tex] and [tex]x = 17[/tex] is [tex]f(x) = \frac{4}{x\cdot (x-17)}[/tex].
How many times larger is 4.5 x 105 than 1.8 x 10%?
A. 2.5
B. 270
C. 250
D. 50
Answer:
c
Step-by-step explanation:
17 < 2x + 7 <29*
Your Inswer
Answer:
5<x<11
Step-by-step explanation:
Answer:x=3
Step-by-step explanation:
what is the answer to -3(9-x)+6x
Answer: 9−27
Step-by-step explanation:
You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?
a
$8 per pound
b
$5 per pound
c
$35 per pound
d
$0.125 per pound
Answer:
$8 per pound
Step-by-step explanation:
40 ÷ 5 = 8
$40 per 5 pound= 8
$8 per 1 pound = 8
5(x – 3) > 7x + 2
what is the value of x?
Answer:
If I am not mistaken the answer is x<-27/2.
Please help meee hbenekneje
5h + 10 = 4h + h + 15
Answer:
h = no solution
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
5h + 10 = 5h + 15
Step 2: Solve for h
Subtract 5h on both sides: 10 ≠ 15Here we see that 10 does not equal 15.
∴ h has no solution.
Final Answer: No Solution
Steps/Reasons:
Step 1: Simplify [tex]4h + h + 15[/tex] to [tex]5h + 15[/tex].
[tex]5h + 10 = 5h + 15[/tex]
Step 2: Cancel [tex]5h[/tex] from both sides.
[tex]10 = 15[/tex]
Step 3: Because [tex]10 = 15[/tex] is false, there is no solution.
No Solution
~I hope I helped :)~
PPLLLLLLLLEEEEEEEAAASSSEEE HELP ME
Answer
2x=60
x=30
Step by step solution
Answer:
30
Step-by-step explanation:
180/3=60
60/2=30
Help please 43 points
Answer:
Get the data from the table:
40, 45, 50, 55, 75, 80, 85Median is the middle number:
55Mean is the average:
(40+ 45+ 50+ 55+ 75+ 80+ 85)/7 = 61.42Rachel and Sarah spent:
80 + 85 = 165Which function best represents this graph?
Answer:
Y=3x-2
Step-by-step explanation
Answer:
the frist one have a good dayStep-by-step explanation:
I know it bless good byeSolve-1 + 8 =
10 - 3a.
Answer:
a = 1
Step-by-step explanation:
Original Equation:
-1 + 8 = 10 - 3a
Add 1 to both sides
8 = 11 - 3a
Subtract 11 from both sides
-3 = -3a
Divide both sides by -3
a = 1
Hope this helps :)
Please consider Brainliest :)
Answer:
a = 1
Step-by-step explanation:
-1 + 8 = 10 - 3a
7 = 10 - 3a
-10 -10
-3 = -3a
---- -----
-3 -3
1 = a
Which equation is written in slope-intercept form?
O y = 3x-2
O X= ży+ 8
- 2x + 5y = 12
O 3y = 8x-5
Answer:
The first one
y= 3x-2
Step-by-step explanation:
what is C in the triangle
C=
Answer:
C = 13
Step-by-step explanation:
[tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex]
[tex]5^{2}[/tex] + [tex]12^{2}[/tex] = 169
[tex]\sqrt{169}[/tex] = 13
Answer:
C = 13
Step-by-step explanation:
Use the following formula to answer this question.
C = square root a^2+b^2
Rewrite the formula using the information you already know.
C = square root 5^2 + 12^2
C = 13
I hope this helped to answer your question.
A major fishing company does its fishing in a local lake. The first year of the company's operations it managed to catch 95,000 fish. Due to population decreases, the number of fish the company was able to catch decreased by 4% each year. How many total fish did the company catch over the first 14 years, to the nearest whole number?
Answer:
54,265 fishes
Step-by-step explanation:
The formula for Population decrease =
P(t) = Po × e^-rt
Where
P(t) = Population after time t
Po = Initial population = 95000
r = decrease rate = 4% = 0.04
t = time in years = 14
Hence
P(t) = 95,000 × e ^- 0.04 × 14
P(t) = 95,000 × e^-0.56
P(t) = 54264.861066 fishes
Approximately = 54,265 fishes
The total fish the company caught over the first 14 years, to the nearest whole number is 54,265 fishes
3. Circle the smallest number.
-2.5 and 1.5
Plss answers
Answer:
-2.5
Step-by-step explanation:
-2.5 < 1.5
Answer:
1.5
Step-by-step explanation:
because it is basic decimals 1.5 would be 15 while 2.5 will be 25
Billy Bob is filling his bathtub with water. At one minute, there are 5
gallons, at two minutes there are 8 gallons, and at 3 minutes there are
11 gallons of water in the tub.
If this pattern continues, how many gallons of water will be in the tub
at 7 minutes?
Answer:
There will be 23 gallons
Answer:
23 gallons
Step-by-step explanation:
the bathtub is filling by 3 more gallons every minute, 7-4=3, 4*3=12, 11+12=23
Robin has 3 feet of ribbon. She uses part of it for a craft and has 2.5 feet left. She divides the 2.5 remaining feet among her 10 friends. How much ribbon does each friend receive?
0.25 feet
0.3 feet
25 feet
30 feetWhich gives the correct order of steps needed to multiply the problem below?
Answer:
0.25 feet for each friend because 2.5/10=0.25
Answer:
0.25 ft.
Step-by-step explanation
You have to divide 2.5 by the amount of friends she has so 2.5/10. Then you would moce the decimal one place forward. You would get 0.25.
Happy to help! Have a great day!