Answer:
10x=40
x=40/10
x=4
4 is the answers, not -4
Step-by-step explanation:
pls mark as brainliest
How much time will it take Wilson to finish painting the bookcase? Explain.
Solve: y = -7(-13).
solve y
Answer:
y = 91
Step-by-step explanation:
y = -7(-13)
=> y = 7(13)
=> y = 91
Please if possible just include the answer not a link to the answer I can’t access them
Answer:
92%, because there is an 8% chance of landing on yellow.
What is the value of the expression 4.2(x−y)4 , when x = 12 and y = 5.6 as a decimal?
Answer:
6.72
Step-by-step explanation:
Help pls ASAP plssss is sims ska and d
Find the distance between the points (–1∕2,–8) and (–1∕2,–2). Question 11 options: A) 6 B) 1∕2 C) 8 D) 10
Check the picture below.
Find the product of 4v22 and 4v4 in simplest form. Also, determine whether the result is rational or irrational and explain your answer. Result: V The result is because it integers and its decimal expansion be written as the ratio of two terminate or repeat.
Answer:
32[tex]\sqrt{22}[/tex]
irrational
cannot be written as a ratio
does not repeat or terminate
Step-by-step explanation:
[tex]\sqrt{4}[/tex] = 2
4[tex]\sqrt{22}[/tex] · 4(2) = 4[tex]\sqrt{22}[/tex] · 8 = 32[tex]\sqrt{22}[/tex]
Which of the following correctly factors the expression −20x+4y−2?
A
4(−5x+4y+2)
B
2(−10x+2y−1)
C
−2(10x+2y+1)
D
−20(x−4y+2)
9514 1404 393
Answer:
B 2(−10x+2y−1)
Step-by-step explanation:
The greatest common factor is 2. Factoring that out gives the factorization shown in choice B.
2(-10x +2y -1)
__
You could factor out -2. Doing that would give ...
-2(10x -2y +1) . . . . . . . doesn't match choice C
The pair of points (-4, y) and (5, 7) lie on a line with slope 1/3. What is the value of y? You must show all of your work to receive credit
Answer:
4
Step-by-step explanation:
[tex]slope = \frac{y - 7}{ - 4 - 5} = \frac{1}{3} [/tex]
y-7=-3, then y=4
a rectangle is made by joining two squares adjacent to each other as shown below. if one squared has an area of 144 squared centimeters what is the area of the rectangle?
Answer:
Step-by-step explanation:
2(144) = 288 cm²
PLEASE ANSWER THESE ASAP WITHIN THIS HOUR!
80 is what percent of 400?
a. Base
b. Rate
c. Percentage
16% of what number is 56?
a. Base
b. Rate
c. Percentage
16% of what number is 56?
a. Base
b. Rate
c. Percentage
Thank you for your help <33
Answer:
♦ 80 is what percent of 400?
a. Base
b. Rate
c. Percentage
Answer: b. Rate
Solution:-
80 = x% of 400x% × 400 = 80x/100 × 400 = 804x = 80x = 80/4x = 2080 is 20% of 400 ( the rate is the percent)
♦ 16% of what number is 56?
a. Base
b. Rate
c. Percentage
Answer: a. Base
Solution:-
16% of x = 5616/100 × x = 5616x/100 = 5616x = 56 × 100x = 5600/16x = 35016% of 350 is 56 (The base is the amount which you're taking a percent of)
The average of max's three tests is an 84 what must he get on a fourth test to raise his average to an 87
Answer:
He must get a 96% on the fourth test to raise his average to an 87
Which is the verbal expression for 11 - 2/n?
Answer:
(a.)
Step-by-step explanation:
(we talked abt it in the comment haah)
Musa had 3/ 5 ton of grain for all the animals on his large farm. He used 1 /20 ton each day to feed all his animals. How many days was it until Musa needed more grain?
Answer:
12 days
Step-by-step explanation:
'd' = number of days
1/20d ≤ 3/5
multiply each side by 20 to get:
d ≤ 60/5 or d ≤ 12
Find the half-life, in days, of Co-60. Round your
answer to the nearest tenth.
Cobalt-60 is used in the treament of
cancer. A sample contains 8 grams of Co-
60 where k = 0.1308.
Enter the correct answer.
N = Noe -kt
DONE
No = initial mass (at time t = 0)
DOO
(อ
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days
Answer:5.3
Step-by-step explanation:
Why
Divide both sides by 8
4=8e ^-0.1308t
0.5=e^-0.1308t
Take log of both sides
In0.5=Ine^-0.1308t
Apply In e^x=x
In0.5=-0.1308
Divide both sides by -0.1308 to solve for t
t=5.3
Find the greatest value of -10+14X-2X^2 and state the value of X at which it occurs
Answer:
Step-by-step explanation:
a maximum or minimum occurs where the derivative equals zero
f(x) = -2x² + 14x - 10
f'(x) = -4x + 14
0 = -4x + 14
4x = 14
x = 3.5
f(3.5) = -2(3.5)² + 14(3.5) - 10 = 14.5
Simplify the following expression
3x + 2(x +6) -4 -2x
A. 3x + 2
B. 7x + 8
C. 3x + 8
D.7x + 10
Answer:
C
Step-by-step explanation:
3x+2(x+6)-4-2x.
First, we do the parenthesis.
This gives us: 3x+2x+12-4-2x.
Then, we reorder so like terms are together.
This gives us: 3x+2x-2x+12-4.
Then, we combine like terms.
This gives us: 3x+8, which is C.
I don’t understand any of the below. Can you please help?
-25 + (-12)
14 - (-20)
-4 + (-10)
Answer:
1. -37
2. -34
3. -14
Step-by-step explanation:
1. -25 then ++- is negative so -25-12 so add them becuase negative + negative adds then keep the negative sign. THIS HELPS WITH EVERYTHINGB
Find the number of integers between 1 and 1000 that are divisible by 12 or 15, but not by both 12 and 15.
Count the multiples of 12:
⌊1000/12⌋ = 83
(where ⌊x⌋ denotes the "floor" of x, or the largest integer that is less than or equal to x)
These are the integers
{12, 24, 36, 48, …, 996}
Count the multiples of 15:
⌊1000/15⌋ = 66
These are
{15, 30, 45, 60, …, 990}
Count the multiples of both 12 and 15; these are multiples of LCM(12, 15) = 60:
⌊1000/60⌋ = 16
These are
{60, 120, 180, 240, …, 960}
Now use the inclusion/exclusion principle to count the multiples of either 12 or 15, but not both:
83 + 66 - 2•16 = 117
Among the multiples of 12 and the multiples of 15, we count the numbers that are multiples of both 12 and 15. By subtracting the number of multiples of both (16), we get the count of integers that are either divisible by 12 or 15. We subract 16 again to remove those that are divisible by both 12 and 15.
The speed of an object is the ratio of its distance traveled to time. If the speed of a bicycle is 4.5 meters per second, what is the distance traveled in 9 seconds?
Answer:
Step-by-step explanation:
9(4.5) = 40.5 m
Identify each equation as direct variation, an inverse variation or neither. 6. m=2n 7. y = 6/w 8. st = 18 9. k= 42h 10. p = 3-4
Answer:
tnx to your points..
god bless you ..
maybe they help for youuu..
Can someone help with question #3
Answer:
y = –12x –300 that will help you
Would anyone be able to help with this?
hii the answer would be 57°
hello! i am doing a practice test for school & i need some help.
Answer:
C IS YOUR ANSWER ,,,,,,,,,,,,,,TICK THAT ANSWER
1. What percent of 120 is 18?
Answer:
15
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
120 · 15% = 18
I hope this helps!!
Use the graph below to answer the question. On a coordinate plane, a line goes through (0, 0) and (3, negative 3). What is the slope of a line that is perpendicular to the line in the graph?
Answer:
y = x
Step-by-step explanation:
So 1st we need to find the slope of the original line which is y = -x
(use slope formula)
2nd Now we just need to reverse the slope, and that gets us to y = x
Answer: 6
its obvious
someone please answer this I'll mark u as the brainest please anyone it's hard for me.
Answer: D
Step-by-step explanation:
Since it is subtracting x from 20. D tells the change from 20 dollars after buying the notebook or x.
A is 20 + x
B is 20/x
C is 20x or 20 * x
D is 20 - x
Answer:
B
Step-by-step explanation:
you can see the words cut and smaller so that indicates subtraction
Help pls ASAP plssss
Answer:
y=2x-1
Step-by-step explanation:
The y-intercept is -1
The slope is 2
Help!!! Show work!!!!!
Answer:
1. (-2,-5) (-1,-1) (0,3) (1,7) (2,11)
2. (-8,-4) (-4,-3) (0,-2) (4,-1) (8,0)
3. (-4,3) (-2,2) (0,1) (2,0) (4,-1)
4. (-2,-1) (-1,2) (0,5) (1,8) (2,11)
Step-by-step explanation:
1. Slope = (11-7)/(2-1) = 4/1 = 4/1
y-intercept: 7 - (4)(1) = 3
Start in the vertical line (y) on 3, 4 up and 1 to the right (you need to points to trace a line)
2. Slope = (0- - 2)/(8-0) = 1/4
y - intercept = -2-(1/4)(0) = -2
Start on -2 vertical line, 1 up and 4 to the right.
3. Slope = (1-0)/(0-2 = -1/2
y-Intercept: 0 - (-1/2)(2)=1
Start on 1 vertical line then 1 down and two to the right (the slope is negative, the line goes downhill)
4. Slope: (8-1)/(1-0) = 7/1
y-intercept = 1 - (7)(0) = 1
Start on 1 vertical line (y) , seven up and 1 to the right.
help pls anyone? pls