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2 years ago

Thanks to whoever helped me out last time but I have another question.

Mathematics

2 answers:

yulyashka [42]2 years ago

8 0

Answer:

Step-by-step explanation:

kompoz [17]2 years ago

6 0

4$ .... 3.75 is closer to 4 than it is to 3 (only look at the answers that are whole numbers because it asks for the nearest dollar)

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Write the quadratic equation whose roots are 2 and -4 and whose leading coefficient is 2

Goryan [66]

Answer:

2x^2+4x-16

Step-by-step explanation:

The quadratic can be written as

f(x) = a(x-z1)(x-z2) where z1 and z2 are the roots

f(x) = a (x-2)(x- -4)

a is the leading coefficient

f(x) = 2(x-2)(x+4)

= 2(x^2 -2x+4x-8)

= 2(x^2 +2x-8)

= 2x^2 +4x-16

5 0

2 years ago

Which expression represents the product of 3 and y? 3 + y 3 − y 3 over y 3y

Eva8 [605]

Answer:

3y is the expression that represents the product of 3 and y

5 0

3 years ago

Please help me if you can

Mekhanik [1.2K]

Answer:

1)-9x^5 + 7x^2 + 3 2) -2x2 • (x - 7) 3) -23v^2 + 7v + 4 4) is just 7x

7 0

2 years ago

F + 0.3 < 1.7<br> I need help with this question its tricky

Ainat [17]

F + 0.3 < 1.7

Subtract 0.3 on both sides

F < 1.4

Your final answer is F < 1.4

6 0

2 years ago

Use the Law of Cosines to find the missing angle.<br><br> Find m∠A to the nearest tenth of a degree.

Savatey [412]

Firstly, we can look at our givens,

a = 17

b = 22

c = 30

And we are looking for m∠A

$a^2=b^2 +c^2 -2bc (cosA)$ Is the Law of Cosines. Now we can solve for our unknown, m∠A. This will give us

$A = cos^{-1} (\frac{-a^2+b^2+c^2}{2bc})$

Now we can substitute in our given variables.

$A= cos^{-1} (\frac{-(17^2)+27^2+30^2}{2(27)(30)} )$

Then we can plug this into our calculator which will give us

34.19185257 degrees

Now we just have to round to the nearest tenth

This means that the answer is 34.2 degrees

8 0

2 years ago

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