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Aleonysh [2.5K]
2 years ago
10

The line y=2/5x +7 is dilated by a scale factor of 4 centered at the point (5,9). What equation represents the image of the lone

after the dilation?
Mathematics
1 answer:
Serjik [45]2 years ago
7 0

Answer:

Step-by-step explanation:

I don’t understand

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ACT scores have a mean of 21.5 and 26 percent of the scores are above 24. The scores have a distribution that is approximately n
lutik1710 [3]

Answer:

5

Step-by-step explanation:

7 0
3 years ago
Amswer in its lowest terms<br> 5 3/5 + 2 1/10
Nataly [62]

5 \frac{3}{5}  + 2 \frac{1}{10}  \\  =  \frac{28}{5}  +  \frac{21}{10}  \\  =  \frac{56}{10}  +  \frac{21}{10}  \\  =  \frac{77}{10}  \\  = 7 \frac{7}{10}

<em>Hope it helps and is useful :)</em>

3 0
2 years ago
Read 2 more answers
A scientist is studying the impact of certain vitamins on a person's ability to remember. The sample size for the experimental g
vovikov84 [41]

Answer:

0.09 average effect

Step-by-step explanation:

Given that the t statistics = 1.54

Sample size (n) = 25

Therefore, variance = t²/n

Variance = 1.54²/25

Variance = 2.372/25

Variance = 0.09

3 0
3 years ago
I need help with exercises 3,4, and 6 please show all work and don’t answer number 5 just tell me if it is correct
joja [24]
*If you need me to do #5, DM me!

3. 
The area of a triangle can be given by (just plug and chug as always):
A_t = \frac{1}{2} bh = \frac{1}{2}(3)(4) = 6ft^2
The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):
A_t = \frac{1}{2} bh = \frac{1}{2}(8)(3) = 12m^2
A_r = bh = 12(8) = 96m^2
Now we just add them:
96+12 = 108m^2

So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:
A_t = \frac{1}{2}bh
So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:
A_t = \frac{1}{2}bh = \frac{1}{2}(2.5)(5) = 6.25cm^2
Multiply by 4 to get total area:
6.25*4 = 25cm^2

So, the area of the given rhombus is 25cm².
8 0
3 years ago
F(x)=x^+4x+2 what is the average rate of change from x=3 to x=5
mars1129 [50]

Answer:

12

Step-by-step explanation:

f(x)=x^+4x+2 First, let's evaluate when x=3, x=4 and x=5.

f(3) = 3²+4(3)+2 = 9 + 12 + 2 = 23

f(4) = 4²+4(4)+2 = 16 + 16 + 2 = 34

f(5) = 5²+4(5)+2 = 25 + 20 + 2 = 47

Now, let's find the rate of change.

34 - 23 = 11

47 - 34 = 13

Finally, the average rate of change.

(11 + 13) / 2 = 12

8 0
3 years ago
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