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2 years ago

What is the pre-image vertex A’ if the rule that created the image is r y-axis (X,Y) (-x,y)

Mathematics

1 answer:

Lapatulllka [165]2 years ago

4 0

Answer:

its A=(-4,2)

Step-by-step explanation:

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Lena walks 2.5km every day. How far does she walk in 7 days? Write your answer in meters.

Marat540 [252]

Answer:

17.5 meters

Step-by-step explanation:

To find how far she walks, multiply 2.5 by 7

2.5(7)

= 17.5

So, in 7 days, she walks 17.5 meters

6 0

2 years ago

Find the fraction of stundents enrolled in each language

blondinia [14]

Fraction of students enrolled in Chinese = $\frac{51}{126}$

Fraction of students enrolled in French = $\frac{33}{126}$

Fraction of students enrolled in Spanish = $\frac{42}{126}$

Solution:

Total number of students = 51 + 33 + 42

= 126

Number of students enrolled in Chinese = 51

Fraction of students enrolled in Chinese

$$=\frac{\text{Number of students enrolled in Chinese}}{\text{Total number of students}}$

$$=\frac{51}{126}$

Fraction of students enrolled in Chinese = $\frac{51}{126}$

Number of students enrolled in French = 33

Fraction of students enrolled in French

$$=\frac{\text{Number of students enrolled in French}}{\text{Total number of students}}$

$$=\frac{33}{126}$

Fraction of students enrolled in French = $\frac{33}{126}$

Number of students enrolled in Spanish = 42

Fraction of students enrolled in Spanish

$$=\frac{\text{Number of students enrolled in Spanish}}{\text{Total number of students}}$

$$=\frac{42}{126}$

Fraction of students enrolled in Spanish = $\frac{42}{126}$

7 0

2 years ago

If the height of Mount Everest is about 8.8×103 meters, and the height of the Empire State Building is about 3.8×102 meters, whi

Luda [366]

Mount Everest is about 23<span> times as tall as the Empire State Building. Hope that helps!</span>

6 0

3 years ago

Read 2 more answers

Help with this question ??

Musya8 [376]

Answer:

-2.6

Step-by-step explanation:

5x - 5 >/ - 18

5x >/ -13

x>/ -13/5

x>/ -2.6

3 0

2 years ago

If there are 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left af

lyudmila [28]

Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

(1/2)^4 * 360

1/16 * 360

22.5 grams

And this is an exponential function.

4 0

2 years ago

Read 2 more answers