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Travka [436]
4 years ago
9

Circle the problems below that you could use mental math to solve.

Mathematics
2 answers:
ira [324]4 years ago
5 0
Hello!

For this one, all of them look like you can use mental math, but maybe choose the two middle ones and the bottom right one. 

Hope this helps :))
VMariaS [17]4 years ago
4 0
Maybe 54-10 because you just take one away from 5
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Solve 16.24 divided by 1000
cricket20 [7]
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Determine whether f(x)=-4(x+3)^2-5 has a maximum or a minimum value, then find that value
Leto [7]

Answer:

Yes it has

Step-by-step explanation:

From my perspective.........

f(x) = -4(x + 3)² - 5

f(x) = -4(x + 3)(x + 3) - 5

f(x) = -4(x² + 6x + 9) - 5

f(x) = -4x² - 24x - 36 - 5

f(x) = -4x² - 24x - 41

Dy/dx = -8x - 24

At minimum Dy/dx = 0

-8x - 24 = 0

-8x = 24

x = 24/-8

x = -3

At minimum

y = -4x² - 24x - 41

y = -4(-3)² - 24(-3) - 41

y = -4(9) + 72 - 41

y = -36 + 72 - 41

y = 36 - 41

y = -5

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3 years ago
Sam is getting ready for a big date when he realizes that he has no money. his roommate, bill, also has no money, but he has a c
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3 years ago
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bagirrra123 [75]

Answer:

D - Area = 9/16pi cm²

Step-by-step explanation:

in order to evaluate this question , we will first of all find the radius using the formula for finding the circumference of a circle , we will then find the area of a circle.

<u>solution</u>

given that circumference of a circle = 3/2picm

recall that the formula for finding the circumference of a circle = 2πr

3/2picm = 2πr

multiply through by 2

3picm = 4pir

divide both side by 4pi

3pi cm/4pi = r

r = 3/4 picm

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Answer:

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Step-by-step explanation:


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