All categories

3 years ago

Help with this plz which one is it :(((:);(((

Mathematics

2 answers:

OLEGan [10]3 years ago

3 0

I think it is D, because the negative would turn positive and move to the right but im not 100% sure

CaHeK987 [17]3 years ago

3 0

It’s c (start a 3 on the number line and move 7 to the left)

You might be interested in

A projectile is fired directly upward. The compound inequality 89 – 9.8t < 10.6 or 89 – 9.8t > 20.4 represents a projectil

Tom [10]

Given compound inequality 89 – 9.8t < 10.6 or 89 – 9.8t > 20.4.

Let us solve them one by one.

89 – 9.8t < 10.6

Subtracting 89 from both sides, we get

89-89 – 9.8t < 10.6 - 89

-9.8t < -78.4

Dividing both sides by -9.8, we get

t > 8.

<em>Note: Inequality sign get flip on dividing both side by a negative number.</em>

89 – 9.8t > 20.4

Subtracting 89 from both sides, we get

89-89 – 9.8t < 20.4 - 89

-9.8 t < - 68.6.

Dividing both sides by -9.8, we get

t < 7

<em>Note: Inequality sign get flip on dividing both side by a negative number.</em>

<h3><em> The solution to the inequality 89 – 9.8t < 10.6 is </em>t > 8. </h3><h3> The solution to the inequality 89 – 9.8t > 20.4 is t < 7.</h3>

When the projectile hits the ground:

89 – 9.8t = 0

Subtracting 89 from both sides, we get

89 - 89 – 9.8t = 0 -89.

-9.8t = -89.

Dividing both sides by 9.8, we get

<h3>to the nearest whole second t is about 9 seconds.</h3><h3>Therefore, variable solution set is {t < 7, t > 8, t = 9}.</h3><h3 />

7 0

4 years ago

Read 2 more answers

What is 275 percent <br> of 4

agasfer [191]

The answer to 275 percent of 4 is 11

3 0

4 years ago

0=x^2-20 can you solve using square root formula? Then by using quadratic formula?

Nastasia [14]

Sqrt(x^2) = sqrt(20)

x = +2sqrt(5)
x = -2sqrt(5)

x1 = (- 0 + sqrt(0^2 - 4*1*(-20))) / (2*1)
X2 = (-0 - sqrt(0^2 - 4*1*(-20))) / (2*1)

8 0

3 years ago

(-11/2 x + 3) -2(-11/4 x - 5/2) writen in the simplest form, I'm doing summer school

miss Akunina [59]

Answer: 8

Step-by-step explanation:

(-11/2x + 3) -2(-11/4x - 5/2)

Distribute

-11/2x + 3 + 22/4x + 10/2

Simplify 22/4x and 10/2

-11/2x + 3 + 11/2x + 5

Cancel out 11/2x and -11/2x

3 + 5

Add 3 and 5

8 0

3 years ago

Read 2 more answers

What is the effect on the graph of the function f(x)= x when f(x) is replaced with f(-x)?

yuradex [85]

Answer:

Step-by-step explanation:

I will outside some translation and reflection rules below:

Let a function be f(x)

Then,

f(x) + a is the function shifted a units up
f(x) - a is the function shifted a units down
f(x-b) is the function shifted b units right
f(x+b) is the function shifted b units left

Now, reflection:

f(-x) is the original reflected across y-axis
-f(x) is the original reflected in x-axis

It says to replace f(x) with f(-x), according to our rules, it is:

horizontal reflection over y-axis, answer choice D.

If you take a function f(x) = x + 2, then make f(-x), it becomes:

f(-x) = -x + 2

<u />

Graphing, you will see that they are reflections over y-axis. (graph attached).

So, answer choice is D

5 0

3 years ago