4 years ago

Line ab contains points a(-6,3) and b(2,-5). line ab has a slope that is?

Mathematics

1 answer:

Angelina_Jolie [31]4 years ago

6 0

Use Y=Mx+b and plug in the coordinates

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Find the value of x from this figure

marissa [1.9K]

Step-by-step explanation:

2x+10=86+x

2x-x=86-10

x=76

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3 years ago

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Please help If you know the answer!!

prisoha [69]

Answer:

-3 +8a

Step-by-step explanation:

(3-8a) *(-1)

Distribute

3*-1 -8a*-1

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3 years ago

Sipho made a 12.5% when he sold a coat for E437.50 .calculate original cost of the coat

kaheart [24]

Answer:

E500

Step-by-step explanation:

Given x the original price of the coat

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3 years ago

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Sonja [21]

Step-by-step explanation:

4/sin45=

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3 years ago

What are the values of a and b?

ivann1987 [24]

Answer:

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

$\dfrac{a}{20}=\dfrac{20}{21}$ <em>cross multiply</em>

$21a=(20)(20)$ <em>divide both sides by 21</em>

$a=\dfrac{400}{21}$

For b, we can use the Pythagorean theorem:

$b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}$

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3 years ago