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Zarrin [17]
4 years ago
10

Looking for help on my daughters homework

Mathematics
2 answers:
Karo-lina-s [1.5K]4 years ago
8 0
4•12 doesn't equal 36
Bogdan [553]4 years ago
6 0
When you multiplied 4 and 12, the answer is not 36.

You might be interested in
Volume of composite figures
ollegr [7]

Given:

The diameter of cylinder is 6 in and the height of the cylinder is 8 in.

The dimensions of the cuboid are 15 in by 9 in by 9 in.

To find:

The volume of the composite figure.

Solution:

Volume of a cuboid is:

V_1=length\times breadth\times height

V_1=15\times 9\times 9

V_1=1215

So, the volume of the cuboid is 1215 cubic inches.

The diameter of cylinder is 6 in. So, the radius of the cylinder is:

\dfrac{6}{2}=3\text{ inches}

Volume of a cylinder is:

V_2=\pi r^2h

Where, r is the radius and h is the height.

Substituting r=3,h=8,\pi =3.14, we get

V_2=(3.14)(3)^2(8)

V_2=(3.14)(9)(8)

V_2=226.08

The volume of the cylinder is 226.08 cubic inches.

Now, the volume of the composite figure is:

V=V_1+V_2

V=1215+226.08

V=1441.08

Therefore, the volume of the composite figure is 1441.08 cubic inches.

4 0
3 years ago
What is the area of the figure below?<br> A. 53 in.²<br> B. 58 in.²<br> C. 63 in.²<br> D. 61.²
Sergeeva-Olga [200]
The answer to your question is A!
answer: 53 in !!
5 0
3 years ago
Read 2 more answers
A finite arithmetic sequence has 12 termsThe last term is 100 and the common difference is 3. What is the first term?
ololo11 [35]

Answer:

67

Step-by-step explanation:

From the question given above, the following data were obtained:

Number of terms (n) = 12

Last term (L) = 100

Common difference (d) = 3

First term (a) =?

We can obtain the first term of the arithmetic sequence as follow:

L = a + (n – 1)d

100 = a + (12 – 1)3

100 = a + (11)3

100 = a + 33

Collect like terms

100 – 33 = a

a = 67

Therefore, the first term of the arithmetic sequence is 67

6 0
3 years ago
Rashaad went to the store to buy some apples. The price per pound of the apples is $4.75 per pound and he has a coupon for $2.50
BARSIC [14]

Answer:$21.25

Step-by-step explanation:

4.75 times 5 equals 23.75-2.50=21.25

6 0
3 years ago
Dale has 2000 dollars to invest. He has a goal to have 5800 in this invest ment in 9 years. At what annual rate compounded conti
elena-14-01-66 [18.8K]

Answer:

Dale will reach his goal at an annual rate of 11.83%.

Step-by-step explanation:

The formula for continuos compounding is given by:

A(t) = Pe^{rt}

In which A is the amount after t years, P is the principal(initial amount) and r is the annual rate.

Dale has 2000 dollars to invest.

This means that P = 2000

He has a goal to have 5800 in this invest ment in 9 years.

So A(9) = 5800

At what annual rate compounded continuously will Dale reach his goal?

This is r.

A(t) = Pe^{rt}

5800 = 2000e^{9r}

e^{9r} = \frac{58}{20}

e^{9r} = 2.9

\ln{e^{9r}} = \ln{2.9}

9r = \ln{2.9}

r = \frac{\ln{2.9}}{9}

r = 0.1183

Dale will reach his goal at an annual rate of 11.83%.

3 0
4 years ago
Read 2 more answers
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