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3 years ago

What’s the value of 8x+2y

Mathematics

2 answers:

Dmitrij [34]3 years ago

8 0

8x + 2y

Since you know x = 5, you can plug in 5 for "x" in the equation

Since you know y = 9, you can plug in 9 for "y" in the equation

So:

8x + 2y

8(5) + 2(9)

40 + 18

58 Your answer is B

maksim [4K]3 years ago

5 0

Answer: I would say your answer is b)

Step-by-step explanation:

8(5)+2(9)=

40+18

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Just curious, I want to see who can get this. tooooootttalllllly know it already

Aneli [31]

Answer:

yea that makes sense

It literally tells you how to do it

Is it some kind of proof tho? Like the math makes sense but like I've never heard of this thing.

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3 years ago

Write the equation of the line in slope-intercept form that is parallel given the equation and point.

KiRa [710]

Answer:

$y = \frac{4x}{5}+\frac{42}{5}$

Step-by-step explanation:

In order for two lines to be parallel, they must have the same slope. So, we know that the slope of the other line is 4/5.

We're given an ordered pair, so we can solve for $b$ in the (slope-intercept form) equation $y = mx + b$

$2 = \frac{4}{5}(-8) + b\\2 = \frac{-32}{5}+b\\b = 2 + \frac{32}{5}\\ b = \frac{42}{5}$

$y = \frac{4x}{5}+\frac{42}{5}$

4 0

4 years ago

A prism with a square base has a height of 15cm and a volume of 735cm3. Find the length of each edge of the base.

denis-greek [22]

Answer:

The length of each edge of the base is 7cm.

Step-by-step explanation:

The volume of a prism with square base is given by:

$V = l^{2}h$

In which l is the length of each edge of the base and h is the height.

A prism with a square base has a height of 15cm and a volume of 735cm3.

This means that $V = 735, h = 15$

$V = l^{2}h$

$735 = 15l^{2}$

$l^{2} = \frac{735}{15}$

$l^{2} = 49$

$l = \pm \sqrt{49}$

Length is a positive measure. So

$l = 7$

Volume in cm³, so the length of each edge is in cm.

The length of each edge of the base is 7cm.

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3 years ago

Which statement best explains ?

Tems11 [23]

A is the correct answer. Hope this helps. I need brainliest so if you can I really appreciate it!

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4 years ago

What is the answer and formula to 14-3g=32

Liono4ka [1.6K]

-3g=32-14
-3g=18(-1)
3g=-18
g=(-18)/3
g=-6

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3 years ago