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Naily [24]
3 years ago
8

Find the surface area of the composite figure.

Mathematics
1 answer:
fgiga [73]3 years ago
4 0

Answer:

470

Step-by-step explanation:

there are several surface areas.

1. the 4 side walls of the big block = 4*12*7 = 336

2. top and bottom of the big block = 2* 7*7 = 98

3. subtract the small rectangular area from the top area covered by the small block = 2*7 = 14

4. the 3 (visible) side walls of the small block on top =

3* 2*7 = 42

5. the small top and bottom areas of the small block =

2* 2*2 = 8

so, 1.+2.-3.+4.+5. = 470

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What is the slope of the line represented by the equation y = 4/5x-3?
alukav5142 [94]

Answer:

The slope is 4/5

Step-by-step explanation:

7 0
3 years ago
What is the greatest common factor of the numerator of ?
Annette [7]

The greatest common factor of the numerator and denominator of the rational expression is x - 4

<h3>How to determine the greatest common factor?</h3>

The fraction expression is given as:

\frac{5x-20}{x^2-2x-8}

Factorize the numerator and the denominator

\frac{5x-20}{x^2-2x-8} = \frac{5(x-4)}{(x- 4)(x + 2)}

Cancel out the common factor

\frac{5x-20}{x^2-2x-8} = \frac{5}{(x + 2)}

The common factor that was canceled out is x - 4

Hence, the greatest common factor of the numerator and denominator of the rational expression is x - 4

Read more about greatest common factors at:

brainly.com/question/10076354

#SPJ1

4 0
2 years ago
HELP ASAP I WILL GIVE BRAINLIEST
tatuchka [14]

Answer:

A

Step-by-step explanation:

Taking the square root of both sides, you get

\sqrt{x^2} = \pm\sqrt{180}

which simplifies to

x = \pm\sqrt{180}

The square root of 180 is approximately 13.42 and since it is the plus or minus square root, the answer is A, -13.42, 13.42.

4 0
3 years ago
-7 (3e-2f+4)+6e-2 can you please help me solve this?
Serjik [45]
-7(3e-2f+4)+6e-2 
(distribute the -7) 
-21e+14f-28+6e-2 
(combine and like terms)
answer = -15e+14f-30 
8 0
3 years ago
The cafeteria at Local Middle School offers a choice of either a sandwich or soup every Thursday. Of all students who purchased
gtnhenbr [62]

Answer:

25 students had soup for lunch

Step-by-step explanation:

Sandwich : soup

Of all students who purchased lunch this Thursday, 30 chose a sandwich

Let x = number of students who choose soup

Sandwich : soup = 30 : x

If the ratio of students who chose a sandwich to all of those who chose soup was 6:5

Sandwich : soup = 6 : 5

how many of the students had soup for lunch?

Equate both ratios

Sandwich : soup

30 : x = 6 : 5

30 / x = 6 / 5

Cross product

30 * 5 = x * 6

150 = 6x

Divide both sides by 6

x = 150 / 6

= 25

x = number of students who choose soup = 25 students

3 0
3 years ago
Read 2 more answers
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