3 years ago

I don’t know what to do .. can somebody help

Mathematics

1 answer:

aalyn [17]3 years ago

7 0

Answer:

sureeeeeeeeeeeeeeeeeee

Step-by-step explanation:

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A. Write the given equation in standard form.8x+3y+6=0

Vikki [24]

Answer:

8x+3y=-6

Step-by-step explanation:

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3 years ago

. In RST, R is 20° more than two times S, and S = T. Find the measure of each angle. -

ziro4ka [17]

∠R = 100° , ∠S = 40° and ∠T = 40°

Step-by-step explanation:

In a triangle, sum of all the angles in a triangle is equal to 180 degrees.

In Δ RST,

∠R + ∠S + ∠T = 180°

It is given that,

∠S = ∠T

∠R = 2∠S + 20

So plugin these values in the above equation, we will get,

2∠S + 20 + ∠S+ ∠S = 180

4∠S = 180 - 20

∠S = 160/ 4 = 40

∠R = 2× 40 + 20 = 80 + 20 = 100°

∠S = ∠T = 40°

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4 years ago

2x + 9 - 4(x+1) = 5x + 8

Serga [27]

I hope this helps you

2x+9-4x-4=5x+8

9-4-8=5x+4x-2x

-3=7x

x=-3/7

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4 years ago

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Find r, the common ratio. {-252, 126, -63, 31.5, ...}

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Answer:

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Step-by-step explanation:

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3 years ago

Figure ABCD is graphed on a coordinate plane.

Phoenix [80]

1. BC is 1+3=4 (units)

2. AD is 3+5= 8 (units)

3. Draw the altitude CH from point C, as shown in the figure.

4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.

5. $CD^2=HD^2+CH^2$

$CD^2=2^2+4^2=4+16=20$

$CD= \sqrt{20}= \sqrt{4*5}= \sqrt{4} * \sqrt{5}=2 \sqrt{5}= 4.47$

6. AB=CD=4.47 because the trapezoid is isosceles.

7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)

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4 years ago

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