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4 years ago

Which of the following best describes the total area of the exterior surface of a solid figure?

Mathematics

2 answers:

Free_Kalibri [48]4 years ago

7 0

The answer is D, Surface area

aksik [14]4 years ago

6 0

Answer: D.Surface area

Step-by-step explanation:

Slant height is the distance along the lateral surface of a sold figure.
Base area is the area of the base of the solid figure.
Lateral surface area is the area of faces of a solid which does not include the area of the base or bases.
The total area of the exterior surface which is know as surface area of a solid figure is the sum of the lateral surface area and the base area of that figure.

i.e. $\text{Surface Area=Lateral Area + Base Area}$

Therefore, term which best describes the total area of the exterior surface of a solid figure is "Surface area" .

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A certain college graduate borrows 7864 dollars to buy a car. The lender charges interest at an annual rate of 13%. Assuming tha

White raven [17]

Answer:

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = =$1573.17

Step-by-step explanation:

Consider A represent the balance at time t.

A(0)=$ 7864.

r=13 % =0.13

Rate payment = $k

The balance rate increases by interest (product of interest rate and current balance) and payment rate.

$\frac{dB}{dt} = rB-k$

$\Rightarrow \frac{dB}{dt} - rB=-k$ .......(1)

To solve the equation ,we have to find out the integrating factor.

Here p(t)= the coefficient of B =-r

The integrating factor $=e^{\int p(t) dt$

$=e^{\int (-r)dt$

$=e^{-rt}$

Multiplying the integrating factor the both sides of equation (1)

$e^{-rt}\frac{dB}{dt} -e^{-rt}rB=-ke^{-rt}$

$\Rightarrow e^{-rt}dB - e^{-rt}rBdt=-ke^{-rt}dt$

Integrating both sides

$\Rightarrow \int e^{-rt}dB -\int e^{-rt}rBdt=\int-ke^{-rt}dt$

$\Rightarrow e^{-rt}B=\frac{-ke^{-rt}}{-r} +C$ [ where C arbitrary constant]

$\Rightarrow B(t)=\frac{k}{r} +Ce^{rt}$

Initial condition B=7864 when t =0

$\therefore 7864= \frac{k}{r} - Ce^0$

$\Rightarrow C= \frac{k}{r} -7864$

Then the general solution is

$B(t)=\frac{k}{r}-( \frac{k}{r}-7864)e^{rt}$

To determine the payment rate, we have to put the value of B(3), r and t in the general solution.

Here B(3)=0, r=0.13 and t=3

$B(3)=0=\frac{k}{0.13}-( \frac{k}{0.13}-7864)e^{0.13\times 3}$

$\Rightarrow- 0.48\frac{k}{0.13} +11614.98=0$

⇒k≈3145.72

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = ${(3145.72×3)-7864}

=$1573.17

4 0

4 years ago

**ANSWER ASAP WILL GIVE BRAINLIEST; QUESTIONS ARE IN PICTURE**

lord [1]

Answer:

below( hope this helps )

Step-by-step explanation:

2. No because we don't know if the triangles are right triangles.

3. unknown since there are no labels to what the triangle points are

6 0

3 years ago

Need help ASAP m<2=92 m<12=74

galben [10]

Answer:

nevermind, i figured it out!

<10 = 92

<8 = 92

<9 = 88

<5 = 106

<11 = 106

<13 = 106

yes these are actually the answers, lol

Step-by-step explanation:

6 0

3 years ago

How do you write the difference of a number and eight, divided by ten

ch4aika [34]

Answer:

(x-8)/10

Step-by-step explanation:

-------

7 0

3 years ago

Read 2 more answers

Please help i put a picture on top

jolli1 [7]

Answer:

1/8÷7

Step-by-step explanation:

I think

3 0

3 years ago