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nlexa [21]
3 years ago
8

A rectangle measures 6 inches by 15 inches. If each dimension of the rectangle is dilated by a scale factor of 1/3 to create a n

ew rectangle

Mathematics
1 answer:
Brrunno [24]3 years ago
4 0
I think it is A. I could be wrong
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The sum of -4 and 8 times a number is multiplied by 3. The result is 15 less that 25 times the number. What is the number?
mash [69]
3(-4 + 8x) = 25x - 15
-12 + 24x = 25x - 15
25x - 24x = -12 + 15
 x = 3

answer is
<span>D) 3</span>
4 0
3 years ago
A scientist wants to know if there is a meaningful difference between two groups of gels that grow bacteria. He randomly selects
Nimfa-mama [501]

The difference between the numbers of group A and group B will be 3, 1, 1, 3 and -1, 3, 5, -5. Then there is no meaningful difference between the two groups.

<h3>What is subtraction?</h3>

It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.

A scientist wants to know if there is a meaningful difference between two groups of gels that grow bacteria. He randomly selects five gels from each group, and counts the number of bacteria spots on each gel:

Group A: 9, 12, 13, 14, 17

The difference between the numbers will be given below.

3, 1, 1, 3

Group B: 6, 5, 8, 13, 8

The difference between the numbers will be given below.

-1, 3, 5, -5

There is no meaningful difference between the two groups.

More about the subtraction link is given below.

brainly.com/question/4319655

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3 0
2 years ago
What is the surface area of a sphere with a radius of 9 units?
Vinvika [58]

Answer:

see explanation

Step-by-step explanation:

The surface area (A) of a sphere is calculated as

A = 4πr² ← r is the radius, here r = 9, thus

A = 4π × 9² = 4π × 81 = 324π ≈ 1017.9 units²

4 0
3 years ago
Read 2 more answers
The function f(x) has an average rate of change on the interval -2≤x≤3 of 17/5. If f(-2)=9 then which of the following is the va
anastassius [24]

Answer:

f(3) = 26

Step-by-step explanation:

Average rate of change of a function on an interval is;

f(a) - f(b)/(a-b)

Here, we want to find the value of f(-3)

To find the average rate of change on the given interval;

we have;

f(3) - f(-2)/3-(-2) = 17/5

f(3)-9/5 = 17/5

Since denominator is same, we equate numerator;

f(3)-9 = 17

f(3) = 17 + 9

f(3) = 26

5 0
3 years ago
Solve -2a -5 &gt; 3 Which graph shows the solutions?
gogolik [260]

Answer: a< -4 D

Step-by-step explanation:

5 0
3 years ago
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