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Scilla [17]
3 years ago
12

Work out the surface area of this solid prism.

Mathematics
1 answer:
Aliun [14]3 years ago
7 0

Answer:

264m^2

Step-by-step explanation:

6 by 8 triangle =6*8 for both=48m^2

10 by 9 =10*9=90m^2

6 by 9 =6*9=54m^2

8 by 9 =8*9=72m^2

total=48+90+54+72=264 m^2

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The graphs below are both quadratic functions. The equation of the red graph is
Natali5045456 [20]

Answer:

D. g(x)=\frac{1}{5}x^2

Step-by-step explanation:

  • The equation of the red quadratic graph is f(x)=x^2.
  • This is the parent quadratic function or the base of the quadratic functions.
  • This red quadratic graph has been dilated by a certain scale factor  to obtain the blue graph. Recall that, when the scale factor is a fraction, such that 0\: the graph is stretched horizontally.
  • The dilated graph then becomes wider than the parent function.
  • From the given function equations, the possible value of k can only be k=\frac{1}{5}.
  • Therefore the blue graph has equation: g(x)=\frac{1}{5}x^2
  • The correct answer is D.
6 0
3 years ago
Tim must read 2 books from a list of 7 recommended books for his summer reading program. In how many different ways can Tim choo
Marianna [84]

There are 21 ways Tim choose 2 books from the 7 recommended book

<em><u>Solution:</u></em>

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

To find: different ways can Tim choose 2 books from the 7 recommended books

This is a combination problem

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

<em><u>The formula for combinations is:</u></em>

n C_{r}=\frac{n !}{r !(n-r) !}

where n represents the number of items, and r represents the number of items being chosen at a time

Here we have to choose 2 books from 7 books

Therefore, n = 7 and r = 2

<em><u>Substituting values in above formula, we get</u></em>

\begin{aligned}&7 C_{2}=\frac{7 !}{2 !(7-2) !}\\\\&7 C_{2}=\frac{7 !}{2 ! \times 5 !}\end{aligned}

For a number n, the factorial of n can be written as,

n !=n \times(n-1) \times(n-2) \dots \dots \times 2 \times 1

Therefore, we get

7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21

Thus there are 21 ways Tim choose 2 books from the 7 recommended book

7 0
3 years ago
A section of road covers 18.3 square feet. Each square foot will require 5.1 minutes to repair.
Salsk061 [2.6K]

Answer:I think it’s 61 minutes

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The temperature at 6:00 a.m. was -6°F. By 12 noon, the temperature had increased by 15°F. What was the temperature at
NeTakaya

Answer:

9°

Step-by-step explanation:

-6 + 15 = 9

7 0
3 years ago
HELPPPPP PLEASEEEE!!!
AveGali [126]

Answer:

\frac{1}{5^{2}}

 

4 0
3 years ago
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