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2 years ago

i need to find thr surface area for this

Mathematics

1 answer:

mash [69]2 years ago

6 0

Answer:

96 cm²

Step-by-step explanation:

The surface area of a pyramid is the sum of the base area and the area of the four triangular faces. Using the formulas for each of these, a simplified formula can be written.

A = s(s +2h)

where s is the side length of the square base, and h is the slant height of a triangular face.

For the given dimensions, s=4 cm, h=10 cm, the surface area is ...

A = (4 cm)(4 cm +2×10 cm) = (4)(24) cm²

A = 96 cm²

The surface area of the pyramid is 96 square centimeters.

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List all the equivalent fractions for the 12/20<br>

8090 [49]

Answer:

6/10

9/15

12/20

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The government plans to build 75,000 new homes. 1/5 of the new homes will be built in a city near you. How many is that?

laiz [17]

The answer is 15,000 because 75000/5 = 15000.

4 0

3 years ago

Alyssa took a math test for 20 questions and she answered 16 questions correctly in order to get an a she needs to answer at lea

Elenna [48]

Answer:

She did not qualify the exam.

Step-by-step explanation:

Given data

Total no of question in a test = 20

No. of question answered correctly = 16

Percentage of question answered correctly

$(\frac{16}{20}) 100 = 80$

But in order to get in the exam the student must have to score at least 90 %. But she got only 80 % so she did not qualify the exam.

6 0

3 years ago

How long does it take a 2700 dollar investment compounded monthly at 9% to make 500 dollars

valina [46]

Answer:

23 months

Also please note that it's everytime ^t/12 not (^t)/12

Step-by-step explanation:

Principal (P) = $2700

rate = 9%

t = ?

Amount = $P(1+\frac{r}{100} )^(t/12)$

Amount = 2700 +500 = $3200

So substituting all our values we get :

$3200 = 2700(1+\frac{9}{100})^(t/12)\\ 3200=2700(1+0.09)^(t/12)\\3200 = 2700(1.09)^(t/12)\\\frac{3200}{2700} =1.09^(t/12)$

So we use log to solve for t :

$t/12=log_{1.09} (\frac{3200}{2700})\\$

Solving this using a calculator we get:

1.9714966193*12

=23 months

7 0

3 years ago

Find four consecutive integers whose sum is 114.

Rzqust [24]

4 consecutive integers : (x), (x + 1), (x + 2), (x + 3)

x + x + 1 + x + 2 + x + 3 = 114...combine like terms
4x + 6 = 114....subtract 6 from both sides
4x = 114 - 6
4x = 108...divide both sides by 4
x = 108/4
x = 27

x + 1 = 27 + 1 = 28
x + 2 = 27 + 2 = 29
x + 3 = 27 + 3 = 30

so ur 4 numbers are : 27, 28, 29, 30

7 0

3 years ago

￼i need to find thr surface area for this

i need to find thr surface area for this