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GenaCL600 [577]
3 years ago
9

FREE BRAINLIST 3

Mathematics
2 answers:
VikaD [51]3 years ago
6 0

Answer:

Thanks I guess

Step-by-step explanation:

Alina [70]3 years ago
5 0

Step-by-step explanation:

thank you, I'm ok if you don't mark me brainliest. but still thank you :)

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What is the surface area?
Ratling [72]
The formula for the surface area of a rectangular prism is

A= 2(wl+hl+hw)

We are given the height =2cm, width= 5cm, and length= 10cm. All you have to do is plug this info in!

A= 2(wl+hl+hw)
= 2[(5)(10)+(2)(10)+(2)(5)]
= 2(50+20+10)
= 2(80)
=160 cm squared

Hope this helps!! :)
4 0
3 years ago
one end of a ten- foot ladder is four feet from the base of a wall . how high on the does the top of the ladder touch ??​
Jet001 [13]

Answer:

9,2 feet

Step-by-step explanation:

Use the Pythagorean theorem: height= sqrt(10^2-4^2)= sqrt(84) =9,2 ~

sqrt Is Square root btw

8 0
3 years ago
What is an equation of the line that passes through the point (1,-3) and is perpendicular to the line x+3y=21
docker41 [41]

The linear equation that is perpendicular to the line x+3y=21 is:

y = 3*x - 6

<h3>How to find the equation of the line?</h3>

A general line in the slope-intercept form is written as:

y = m*x + b

Where m is the slope and b is the y-intercept.

Two linear equations are perpendicular if the product between the two slopes is equal to -1.

Rewriting the given line we can get:

x +3y = 21

3y = 21 - x

y = 21/3 - x/3

y = (-1/3)*x + 21/3

Then the slope is (-1/3), if our line is perpendicular to this one, then:

m*(-1/3) = -1

m = 3

our line is:

y = 3*x + b

To find the value of b, we use the fact that our line passes through (1, - 3)

-3 = 3*1 + b

-3 - 3 = b

-6 = b

The line is y = 3*x - 6

Learn more about linear equations:

brainly.com/question/1884491

#SPJ1

3 0
1 year ago
What is 3 3/10 + 2 1/10
Sergeu [11.5K]
The answer is
27/5 = 5 2/5 = 5.4
4 0
3 years ago
Read 2 more answers
What is the simplified form of the following expression? 13[62 ÷ (52 – 42) + 9]
tatuchka [14]

Answer:

197.6

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Write expression

13[62 ÷ (52 - 42) + 9]

Step 2: Brackets - Parenthesis (Subtract)

13[62 ÷ 10 + 9]

Step 3: Brackets - Division

13[6.2 + 9]

Step 4: Brackets - Addition

13[15.2]

Step 5: Multiply

197.6

3 0
3 years ago
Read 2 more answers
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