3 years ago

Please help me I really need to finish this

Mathematics

2 answers:

Rudik [331]3 years ago

5 0

Answer:

Step-by-step explanation:

Marianna [84]3 years ago

3 0

18. the area for each side is 1in^2 and there are 6 sides. so the area of 1 cube is 6 in^2. 6*3=18

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Calculate the perimeter of a rectangle with height 10cm and length 9cm

katovenus [111]

Answer:

Step-by-step explanation:

10+10=20

9+9=18

20+18=38

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3 years ago

The graph of y=3x is shown. What is the value of x when y=27?

pishuonlain [190]

The answer is c
it is since you would put 3x = 27
then divide 3 by 27 which equals 9!

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3 years ago

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PLZ ANSWER WORTH 10 points!!!! ANswer correct and I will give brainiest! ( I keep my words)

Ronch [10]

2.35m is the answer. I cannot draw a table on here

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3 years ago

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What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−2/3x+5

swat32

Let $k:y=m_1x+b_1$ and $l:y=m_2x+b_2$

$l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}$

We have $y=-\dfrac{2}{3}x+5\to _1=-\dfrac{2}{3}$

Therefore

$m_2=-\dfrac{1}{-\frac{2}{3}}=\dfrac{3}{2}$

We have the equation of a line: $y=\dfrac{3}{2}x+b$ .

Put the coordinates of the point (8, 1) to the equation of a line:

$1=\dfrac{3}{2}(8)+b$

$1=(3)(4)+b$

$1=12+b$ <em>subtract 11 from both sides</em>

$-11=b\to b=-11$

Answer: $\boxed{y=\dfrac{3}{2}x-11}$

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4 years ago

Can someone PLEASE help me out w this?!?!?????

sasho [114]

Hi!

Here's your answer:

x=3 and y=0

I hope this helps!

Feel free to mark brailiest!

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2 years ago