Mathematics High School

Which expressions are equivalent to 12r-5?
A. 6(2r+(-1))+1
B. -4(2+(-3r))+3
C. None of the above​

Answers

Answer 1

Answer:

c

Step-by-step explanation:

because u cant be wrong with going with none of the above due the fact that they could be decimals and they didn't want to write out the full number therefore making it incorrect. No need to thank me.

Related Questions

HELP ASAP
Factor h²+6h-27 . The factored expression is...​

Answers

Answer:

(h+9)(h-3)

Step-by-step explanation:

The 6 can be made from factoring -27 into -3 and 9

Find the surface area

Answers

Answer: 80ft squared

Step-by-step explanation: 18 * 4 + 8 = 80

80ft squared
bc I’m so smart and def did not copy the other guy

Part B Which of these statements are true? Choose all that apply. . А More than 20% of girls and more than 20% of boys chose math as their favorite subject. Fewer than 30% of girls and fewer than 20% of boys chose English as their favorite subject. с Fewer than 20% of girls and fewer than 20% of boys chose history as their favorite subject. D More than 20% of girls and more than 30% of boys chose science as their favorite subject B​

Answers

Is there a sort of graph that I could look at and then I could tell, because I don’t just know this information off the top of my head.

Please help me? I am confused.​

Answers

Answer:

-5

Step-by-step explanation:

You are trying to find the cube root of a number. Because the number is being multiplied by itself 3 times over, only a negative number could be a cube root of another negative number

I need help on this it's due in 10 minutes​

Answers

Answer:

B, no, yes, no, no, no, 225

Step-by-step explanation:

can someone help me please

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The sum is formed by adding corresponding elements. For example, the lower right element (row 3, col 3) of the sum is 5+4 = 9

Which statement explains the difference between the graphs of f(x) = 4x^2 and g(x) = -8x^2 ?

A) The graph of g(x) is obtained by flipping f(x) over the y-axis and stretching vertically by a factor of 2.

B) The graph of g(x) is obtained by flipping f(x) over the x-axis and compressing vertically by a factor of 2.

C) The graph of g(x) is obtained by flipping f(x) over the x-axis and stretching vertically by a factor of 2.

D) The graph of f(x) is obtained by flipping g(x) over the y-axis and compressing vertically by a factor of 2.

Answers

Answer:

I think C is best explains

The correct option is B.

The graph of g(x) is obtained by flipping f(x) over the x-axis and compressing vertically by a factor of 2.

What is transformation?

Transformation means to change. Hence, a geometric transformation would mean to make some changes in any given geometric shape.

Given are two functions f(x) = 4x² and g(x) = -8x², we need to see the transformation done in the function f(x) to give g(x).

So,

We can see that there is scale factor of 2, because it was 4 in f(x) and in g(x) it became -8 that means the graph have been compressing vertically by 2 units.

Also, the presence of minus sign, this is because the reflection has been done here about x-axis, so it becomes -8x².

According to our study we can say that the graph is reflected over x-axis and compressing vertically by 2 units.

Hence, the correct option is B.

Learn more about transformations, click;

https://brainly.com/question/13801312

#SPJ2

a function f(x) has x intercepts of -3 and -5. what is thr constant term in the function? f(x)= x²+8x+___​

Answers

Answer:

15

Step-by-step explanation:

(x+3)(x+5)=0

x^2+8x+15=0

Linear or Non Linear

The cost to ride in a taxi that initially charges $4 plus $0.25 per half mile

Answers

i’m not 100% sure but i think it’s Linear.

On a survey, 7 students reported how many minutes it takes them to travel to school. Here are their responses.
13, 7, 12, 9, 8, 8, 16
Send data to calculator
Find the mean travel time for these students.
If necessary, round your answer to the nearest tenth.
I minutes
Х
5
?

need asap.

Answers

To find the average, add them all up. 13 + 7 + 12 + 9 + 8 + 8 + 16 = 73
Then divide by how many numbers there are, 73 divided by 7 = 10.4285714286

10.4285714286 rounded to the nearest tenth = 10.4
Hope this helps :D

Which Equation Is equivalent To Log2y =x+7

Answers

Answer:

the second one

Step-by-step explanation:

Pls can someone help me‼️‼️‼️‼️
and I don’t want files.

Answers

Answer:

135

Step-by-step explanation:

a line always has a degree of 180 so u just subtract 45 from 180 and get 135

m ∠LNM = 135°

Step-by-step explanation:

45° + 3x = 180°

3x = 180° - 45°

3x = 135°

Find the area. The figure is not drawn to scale.

Answers

Answer:

13.8cm

Step-by-step explanation:

formula

b x h / 2

6.9 x 4 / 2

= 13.8

Is it, a solution or, NOT a solution?

Answers

Answer:

Perosnally i think it is not a solution but let me check that for you!

Step-by-step explanation:

Answer:Answer x=15 and the answer for x=6 will be false!

Step-by-step explanation:X=6 is not a solution but the correct answer is 15 .First we know that 5+5=10,then if we add 10+5 that will give us 15.

What is the length of BC? Round to the nearest tenth

Answers

Answer:

9.9

use the special triangle formula or use cosine to find BC

what does 2x+2y=7 equal to

Answers

Let's solve for x.
2
x
+
2
y
=
7
Step 1: Add -2y to both sides.
2
x
+
2
y
+
−
2
y
=
7
+
−
2
y
2
x
=
−
2
y
+
7
Step 2: Divide both sides by 2.
2
x
2
=
−
2
y
+
7
2
x
=
−
y
+
7
2



Let's solve for y.
2
x
+
2
y
=
7
Step 1: Add -2x to both sides.
2
x
+
2
y
+
−
2
x
=
7
+
−
2
x
2
y
=
−
2
x
+
7
Step 2: Divide both sides by 2.
2
y
2
=
−
2
x
+
7
2
y
=
−
x
+
7
2
Answer:
y
=
−
x
+
7
2

Find the area of the parallelogram.
PLEASE HELP!!

Answers

340cm^2 I believe :’)

Can someone help? I need to see work so i can write it on the screenshot and i need the answer

Answers

Answer:

y=12 .

180-106=74

74+3y+22+4y=180

96+7y=180

7y=84

y=12

4×12 = 48

Step-by-step explanation:

Good luck dear ;)

A farm equipment company kept a record of the number of tractors made each month. What is the mean of the numbers? ANSWERS
6

7

9

8

Answers

The answer I got is 8

A car salesman sold a cat for $23,575, earning a commission of 4%. How much was his commission? '

Answers

Answer:

The commission is 943

Step-by-step explanation:

Take the price of the cat and multiply by the commission rate

23575 * 4%

23575 *.04

943

The commission is 943

the mode of 100 120 120 140 140 100

Answers

Answer:

100, 120, 140

Step-by-step explanation:

The mode is the value that occurs most often in the sequence. All the numbers occur twice

Calculating Circumference

Answers

Circle A is r=1.5 d=3 c=9.42478
Circle B is r=5 d=10 c=31.41593
Circle C is r=2.25 d=4.5 c=14.13717
Circle D is r=3 d=6 c= 18.84


Monique went on a hike in the hills. The table
displays the times and distances from the beginning to
the end of the hike.
If Monique hiked at a constant pace, which equation
shows the relationship between the length of the time
she hiked and the distance she hiked?
A. d= 6t
B. d = 4.8t
C. d= 12.5t
D. d= 0.087

Answers

Answer:

I believe it is A, d= 6t

It is an odd question though.

A radio station had 228 tickets to a concert. They gave away 5 times as many tickets to listeners as to employees. How many tickets did they give away to employees?

a. 6
b.5
c.38
d.43

plz explain i don't get it

Answers

So you start off with 228 tickets. The listeners got 5 times the amount that the employees got. So the listeners plus the employees equals 228 which is your starting amount. So you have to plug in each answer to the equation 5x + y = 228 , the x being listeners and the y being the employees. You use the answer choice for the x and y and plug them in and solve until your answer becomes true. I hope that explains it as well as my picture

Which one should I choose?

Answers

Answer:

∠ 1 = 58°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

117° is an exterior angle of the triangle, then

∠ 1 + 59° = 117° ( subtract 59° from both sides )

∠ 1 = 58°


Mary runs in the Chicago marathon and it takes her 5 hours to complete it. Write a
or unit rate that could describe Mary's run if a marathon is 26.2 miles long.



Answers

If you want to keep it technical, the normal “/unit rate” for running is minutes per mile. You can use dimensional analysis like I did below to find the answer. You should get 11.45 min/mile or about 11 min 25 sec per mile

i need a little help with this

Answers

The answer is B i believe.
The answer is b good luck

Find dy/dx in the following
1) y=x^[10] +10^[x] +e^[x]
2) y=㏒ x +e^[x]+√x - 1/x

Answers

1. in picture 1

2. in picture 2

Hope this helps :T

Also I am not so shure about 2, but I am 98% shure 1 is right.

what is volume triangluar prism width of 6, length of 5, and a height of 13

Answers

Answer:

1

4h﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

Step-by-step explanation:

I don’t really know how to explain it’s sry.

What is the absolute value equation below:
|x|=7∣

Answers

THE ANSWER IS 7 because i did the math

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