3 years ago

Help me please! Someone “answered” this question already but it’s not the right answer!

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

6 0

Answer: x < -7 over 3 for the first and x > 5 for the second.

Step-by-step explanation: I took two adderalls and I'm high as a kite.

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A parallelogram with a base of x units and a height of y units is changed

suter [353]

Answer:

868 (third option)

Step-by-step explanation:

we know that the area of original is $xy=31$ .

the new parallelogram will has area $4x\times 7y = 28xy=28\times 31=868$

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3 years ago

Let r(t)=⟨t2,1−t,4t⟩. calculate the derivative of r(t)⋅a(t) at t=5, assuming that a(5)=⟨−4,4,−5⟩ and a′(5)=⟨−5,9,3⟩

erastovalidia [21]

$\mathbf r(t)=\langle t^2,1-t,4t\rangle$
$\implies\mathbf r'(t)=\langle 2t,-1,4\rangle$

$\dfrac{\mathrm d(\mathbf r(t)\cdot\mathbf a(t))}{\mathrm dt}\bigg|_{t=5}=\mathbf r'(5)\cdot\mathbf a(5)+\mathbf r(5)\cdot\mathbf a'(5)$
$=\langle10,-1,4\rangle\cdot\langle-4,4,-5\rangle+\langle25,-4,20\rangle\cdot\langle-5,9,3\rangle$
$=(-40-4-20)+(-125-36+60)$
$=-165$

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4 years ago

Find the perimeter of ABHG. Round your answer to the nearest tenth of an inch.

frozen [14]

Answer:

141.5

Step-by-step explanation:

because, x=26.5 and y=4 and then, its just plugining it into the equation Im not sure about the x and y but, I took the test and got it right.

5 0

3 years ago

juanyra,hannah,and bella went out for pizza.juanyra ate 1/3 of the pizza,hannah ate 2/6 of the pizza,and bella ate 1/4 of the pi

Vesna [10]

Answer:

1 - (1/4 + 2/3)

1 - (3/12 + 8/12)

1 - 11/12

1/12 left

4 0

3 years ago

Rhonda has $13. She has one $5 bill, three $1 bills, and one other bill. Is a other bill a $1 bill or a $5 bill explain

morpeh [17]

Answer:

$5 bill

Step-by-step explanation:

If Rhonda has $13 and she has a $5 bill and 3 $1 bills, then she has

5 + 3(1) + x = 13

5 + 3 + x = 13

8 + x = 13

x = 5.

The last bill must be a $5 bill to equal the remaining $5.

8 0

3 years ago