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Katena32 [7]
4 years ago
7

Please help me with this question! I will give brainliest if I can!

Mathematics
1 answer:
Roman55 [17]4 years ago
6 0

Answer:

the answer is C.

Step-by-step explanation:

he is wrong because a solid line is when it is greater than or equal to

but it is a dashed line so it is only greater than

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Find The Surface Area Of The Prism!
Dmitry_Shevchenko [17]

Answer:

288

Step-by-step explanation:

the formula is 2(lw+wh+hl)

length - 8

width - 8

height 5

substitute the values and you get

2(64+40+40)

2(144)

= 288

7 0
3 years ago
Read 2 more answers
What would happen to a monthly payment if the interest rate decreased
olga55 [171]

Answer:

The monthly payment will consequently decrease

Step-by-step explanation:

If the interest rate charged say on a mortgage loan is decreased, then the total repayments due will as a consequence decline provided the repayment term remains unaltered. Nevertheless, a decline in total repayments due amounts to a decrease in the monthly or annual repayments

6 0
4 years ago
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You are given the polar curve r = e^θ
galina1969 [7]

The tangent to r(\theta)=e^\theta has slope \frac{\mathrm dy}{\mathrm dx}, where

\begin{cases}x(\theta)=r(\theta)\cos\theta\\y(\theta)=r(\theta)=\sin\theta\end{cases}

By the chain rule, we have

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\frac{\mathrm dy}{\mathrm d\theta}}{\frac{\mathrm dx}{\mathrm d\theta}}

and by the product rule,

\dfrac{\mathrm dx}{\mathrm d\theta}=\dfrac{\mathrm dr}{\mathrm d\theta}\cos\theta-r(\theta)\sin\theta

\dfrac{\mathrm dy}{\mathrm d\theta}=\dfrac{\mathrm dr}{\mathrm d\theta}\sin\theta+r(\theta)\cos\theta

so that with \frac{\mathrm dr}{\mathrm d\theta}=e^\theta, we get

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{e^\theta\sin\theta+e^\theta\cos\theta}{e^\theta\cos\theta-e^\theta\sin\theta}=\dfrac{\sin\theta+\cos\theta}{\cos\theta-\sin\theta}=-\dfrac{1+\sin(2\theta)}{\cos(2\theta)}

The tangent line is horizontal when the slope is 0; this happens for

-\dfrac{1+\sin(2\theta)}{\cos(2\theta)}=0\implies\sin(2\theta)=-1\implies2\theta=-\dfrac\pi2+2n\pi\implies\theta=-\dfrac\pi4+n\pi

where n is any integer. In the interval 0\le\theta\le2\pi, this happens for n=1,2, or

\theta=\dfrac{3\pi}4\text{ and }\theta=\dfrac{7\pi}4

i.e at the points

(r,\theta)=\left(e^{3\pi/4},\dfrac{3\pi}4\right)

and

(r,\theta)=\left(e^{7\pi/4},\dfrac{7\pi}4\right)

8 0
3 years ago
Students were asked to write 6x + Xx - 3x +
Anastasy [175]

Answer:

Sorry

Step-by-step explanation:

Where are the answer of the four students?

7 0
3 years ago
Tim enlarged a picture with a width of 5.5 inches and a length of 8 inches by a scale factor of 3. What are the dimensions of th
olasank [31]
It is B. 8*3 = 24. 5.5*3 = 16.5
8 0
4 years ago
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