3 years ago

Write the equation of the line that goes through the points (-3.5) and (6,-1)

Mathematics

1 answer:

Leokris [45]3 years ago

6 0

The equation would be y = -3/2x + 1/2

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-4.2 (-2.8+4.5) what is the value of the expression

Artyom0805 [142]

-7.14 should be your answer!

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3 years ago

A = √7 + √c and b = √63 + √d where c and d are positive integers.

mrs_skeptik [129]

Answer:

$\displaystyle a:b=\frac{1}{3}$

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

$a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]$

$b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]$

$\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]$

From [3]:

$9c=d$

Replacing into [2]:

$b=\sqrt{63}+\sqrt{9c}$

We can express 63=9*7:

$b=\sqrt{9*7}+\sqrt{9c}$

Taking the square root of 9:

$b=3\sqrt{7}+3\sqrt{c}$

Factoring:

$b=3(\sqrt{7}+\sqrt{c})$

Find the ration a:b:

$\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}$

Simplifying:

$\boxed{a:b=\frac{1}{3}}$

3 0

3 years ago

−7=y7 please help me out

Yuri [45]

Answer:

Step-by-step explanation:

y=-1

7 0

2 years ago

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Help me with this please

Lelu [443]

Answer: (5,4)

4 + 6 / 2 = 5

10 + (-2) / 2 = 4

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3 years ago

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Solve for m <br> 4m-6(2m-3)=90

Zina [86]

Answer:

m= -10.5

Step-by-step explanation:

4m-6(2m-3)=90

distribute 6

4m-12m+6=90

combine like terms

-8m+6=90

subtract 6

-8m=84

divide both sides by -8

answer

m= -10.5

6 0

3 years ago