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wolverine [178]
2 years ago
9

Find the surface area of the pyramid. the surface area of the pyramid is __in squared.

Mathematics
1 answer:
iVinArrow [24]2 years ago
4 0

Answer:

561.08in^{2}

Step-by-step explanation:

S A = lw + l \sqrt{(\frac{w}{2})^{2}  + h^{2}  } + w \sqrt{(\frac{l}{2})^{2} + h^{2}  }

SA = 14(14) + 14 \sqrt{(\frac{14}{2})^{2} + 11^{2}  }+ 14 \sqrt{(\frac{14}{2})^{2} + 11^{2}  } = 561.08in^{2}

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Write a recursive formula and an explicit formula for the following arithmetic sequence: -1,6,13,20,27
Luden [163]

Answer:

Recursive formula is: a_1=-1 ; \ \ a_n=a_{n-1}+7

Explicit formula is: a_n=7n-8

Step-by-step explanation:

We need to find recursive formula and explicit formula for arithmetic sequence -1,6,13,20,27

In the given sequence First term a₁= -1

Common difference d = 7

Finding Recursive Formula

The recursive formula is of type:a_1= First \ term and a_n=a_{n-1}+d

Since the First term a₁ is -1 and common difference d is 7 so, the recursive formula  for given arithmetic sequence will be:

a_1=-1 ; \ \ a_n=a_{n-1}+7

Finding Explicit Formula

The explicit formula is of type: a_n=a_1+(n-1)d

We have

First term a₁= -1

Common difference d = 7

So, explicit formula will be:

a_n=-1+(n-1)7\\a_n=-1+7n-7\\a_n=7n-8

So, explicit formula is: a_n=7n-8

7 0
3 years ago
Solve for x. 4.2x + 0.8x = 5*
Andrei [34K]

Answer:

x=1

Step-by-step explanation:

6 0
3 years ago
Yovani can do 8 math problems in 1 3/5 of a
adelina 88 [10]

Answer:

5 Problems

Step-by-step explanation:

Based on the given conditions, formulate: 8 ÷ 1\frac{3}{5}

Find common denominator and write the numerators above common denominator: \frac{8}{\frac{5}{5} +\frac{3}{5} }

Write the numerators over common denominator: \frac{8}{\frac{5+3}{3} }

Calculate the sum or difference: \frac{8}{\frac{8}{5} }

Divide a fraction by multiplying its reciprocal: 8 × \frac{5}{8}

Cross out the common factor: 5

get the result: 5  

Answer: 5

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2 years ago
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statuscvo [17]

Answer:

2 times

Step-by-step explanation:

25 x 2 is 50. And 25 x 3 is 75, and 75 is larger then 63.

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3 years ago
JoAna has 3/4 of a gallon of milk
STatiana [176]

JoAna still has 3/4 gallon of milk.

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3 years ago
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