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Sati [7]
4 years ago
11

PLEASE HELP BELOW ,,,,,,,

Mathematics
1 answer:
BARSIC [14]4 years ago
6 0
For an increase of 2 crates, the cost increases with $20, so that's $10 per crate. That's our slope. Answers A and C are invalidated immediately.

In the equation, the numbers from one table entry are used. What you do is you want the right hand side to be zero for the used x value, such that the left hand side simplifies to your y value.

In answer B, the entry (8, $85) is used. If you fill in x=8, you want y to be $85 and that's exactly what's happening there.

In answer D, x and y are swapped, so that's very wrong.

A and C were already discarded, which confirms B is the right answer.

You might be interested in
Which equation is quadratic in form?
prohojiy [21]

Answer:

the quadratic formula is ax^2 + bx + c", if the first one is expanded out I will be 6x^2+8x+27 so that's the answer

4 0
3 years ago
Determine the measures of the angles of AMNO if the measures of the angles are in the ratio 2:4:6.
masha68 [24]

Answer:

60,120,180

Step-by-step explanation:

360:(2+4+6)=30

30×2=60

30×4=120

30×6=180

8 0
4 years ago
PLZ HELP QUICKLY!!!!!!!
Serjik [45]
To complete the square (x+2/5)^2 it would be x^2+(4/5)x+4/25
8 0
4 years ago
Read 2 more answers
Shortern this expression pls​
pogonyaev

Answer:

c =\frac{8}{3}

Step-by-step explanation:

Given

c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} +  \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}

Required

Shorten

We have:

c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} +  \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}

Rationalize

c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7} * \frac{4 + \sqrt 7}{4 + \sqrt 7}} +  \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}*\frac{4 - \sqrt 7}{4 - \sqrt 7}}

Expand

c = \sqrt{\frac{(4 + \sqrt 7)^2}{4^2 - (\sqrt 7)^2}} +  \sqrt{\frac{(4 - \sqrt 7)^2}{4^2 - (\sqrt 7)^2}

c = \sqrt{\frac{(4 + \sqrt 7)^2}{16 - 7}} +  \sqrt{\frac{(4 - \sqrt 7)^2}{16 - 7}

c = \sqrt{\frac{(4 + \sqrt 7)^2}{9}} +  \sqrt{\frac{(4 - \sqrt 7)^2}{9}

Take positive square roots

c =\frac{4 + \sqrt 7}{3} +  \frac{4 - \sqrt 7}{3}

Take LCM

c =\frac{4 + \sqrt 7 + 4 - \sqrt 7}{3}

Collect like terms

c =\frac{4  + 4+ \sqrt 7 - \sqrt 7}{3}

c =\frac{8}{3}

4 0
3 years ago
Last one for this :)
ddd [48]

Answer:

2/21 :)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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