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Bess [88]
3 years ago
12

Asking again because last time I didnt get an actual answer. What is the surface area of this composite figure?

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0

Answer:

644 cm^2

Step-by-step explanation:

10*7*2+12*7*2+12*10=140+168+120=428

10*12-3*3=111

428+111=539

8*3*4+3*3=96+9=105

539+105=644

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Find the isosceles triangle area
iVinArrow [24]

Answer:

60 cm²

Step-by-step explanation:

base = 10

Height = √13² - 5² = √144 = 12

area = 1/2BH = 1/2 * 10 * 12 = 60

4 0
3 years ago
I came in super late
Allushta [10]

Since we know that 1/4 is equal to 25%, or 0.25 in decimal form, we are able to work with 0.75 in the expression.


We are told to use j as the original price of the jeans, so we can set up the expression:


j-0.25j


to represent the cost of the jeans with the discount.


Then to simplify, we simply take out j as a common factor, and solve what's in the parentheses:


j(1-0.25)


j(0.75) or 0.75j


Using this equation, we can solve for the b part of the question. If the pair of jeans originally costs $60, plug in 60 to where j is in the expression:


0.75j

0.75(60)=45


Therefore, the cost of the jeans after the discount is C) $45.

8 0
3 years ago
Write an equation of a line passing through the point (4,-9) and parallel to the line 3x-6y=30
sesenic [268]

The equation of a line in the slope intercept form is expressed as

y = mx + c

Where

m represents slope

c represents y intercept

The equation of the given line is expressed as

3x - 6y = 30

Rearranging it so that it will look like the slope intercept form, it becomes

6y = 3x - 30

Dividing both sides by 6, it becomes

6y/6 = 3x/6 - 30/6

y = x/2 - 5

Looking at the equation, slope, m = 1/2

If two lines are parallel, it means that they have equal slope. This means that the slope of the line parallel to the given line is 1/2

To determine the y intercept, c of the line passing through the point (4, - 9), we would substitute

x = 4, y = - 9 and m = 1/2 into the slope intercept equation. It becomes

- 9 = 1/2 * 4 + c

- 9 = 2 + c

c = - 9 - 2

c = - 11

By substtuting m = 1/2 and c = - 11 into the slope intercept equation, the equation of the line would be

y = x/2 - 11

7 0
1 year ago
Find last​ year's salary​ if, after a 4% pay​ raise, this​ year's salary is 31,720
adoni [48]

Answer:

30500.

Step-by-step explanation:

104%=31,720

100%=  x

\frac{(31720)(100)}{104}=30500

3 0
2 years ago
Delilah does 184 jumping jacks in four minutes she does her jumping jacks at a constant rate how many jumping jacks Can Delilah
stepan [7]

Answer:

Delilah can do 46 jumping jacks per minute.

Step-by-step explanation:

3 0
3 years ago
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