Help I don't understand this math. Whoever gets the right answer gets Brainlist! :)

Mathematics

1 answer:

UNO [17]2 years ago

3 0

Answer:

1=32

2=44

3=56

4=70

Step-by-step explanation:

if need working please ask

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You just found the volume of a cylinder, which of the following would be acceptable units for the answer?

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The answer is c, hope this helps

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What two numbers multiply by 25 but adds up to 6

Natalka [10]

No two <em>intergers</em> can solve this problem. If you're not in Algebra II yet, the answer is probably "none."

Just look at the factor pairs of 25:
1 × 25
-1 × 25
5 × 5
-5 × -5
Clearly none of those can add up to 6.

If you want the more complex answer, I'll show you how here. If you don't understand why it doesn't work, that's okay. I just want you to see that there's not an actual answer to the problem.

a+b = 6
a = 6-b
ab = 25
(6-b)b = 25
6b -b² = 25
-b² + 6b = 25
b² -6b = -25
Factor by splitting the middle.
Half of -6 is -3, (-3)² = 9. Add this to each side.
b² -6b + 9 = -16
Factor the perfect square trinomial.
(b-3)² = -16
Take the square root of each side.
b-3 = 4i
b = 3+4i
a+b = 6
a+3+4i = 6
a= 3-4i
<em>(The "i" stands for an imaginary number, specifically, the square root of -1.)</em>

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3 years ago

Find two positive numbers such that the sum of the first and twice the second is 56 and whose product is a maximum

Svetlanka [38]

Let
x-------> the first number
y-------> the second number
P-----> product

we know that
x+2y=56----------> 2y=56-x-----> y=28-0.5x------> equation 1
P=x*y----> equation 2

substitute equation 1 in equation 2
P=x*[28-0.5x]-----> P=28x-0.5x²

using a graph tool
see the attached figure
the vertex is the point (28,392)
that means
for x=28
the product is 392 (maximum)
find the value of y
y=28-0.5x----> y=28-0.5*28----> y=14

the answer is
the numbers are 28 and 14

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4 years ago

please help I am so stuck on this! 100 points and brainiest the choices for each question are in the second attachment

77julia77 [94]

Answer:

Step-by-step explanation:

(A) Definition of Supplementary angles

(B) Distributive property

(D) Reflexcive property

(E) Division property of equality

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denis-greek [22]

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Because it is 5 years:
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