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RSB [31]
3 years ago
7

Determine the x-intercept, y-intercept, and slope of the line described by -3x+7y=-21

Mathematics
1 answer:
dimulka [17.4K]3 years ago
3 0

Answer:

Step-by-step explanation:

Comparing to Y = MX + c

M is the slope and c is intercept

-3x+7y=-21

7y = 3x - 21

y = 3/7x - 21/7

y = 3/7x - 3

Slope= 3/7

Intercept= -3

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Yuliya22 [10]

Answer:

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Step-by-step explanation:

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2 years ago
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Please help with geometry question
Hunter-Best [27]

Answer:

m∠J = 45° , m∠I = 45° and m∠M = 90°

And the ΔJIM is an isosceles right angled triangle.

Step-by-step explanation:

(a). In ΔJIM,

∠J = 2x + 15,

∠I = 5x - 30, and

∠M = 6x

Now, using angle sum property of a triangle that sum of all the angles in a triangle is 180°

⇒ ∠J + ∠I + ∠M = 180°

⇒ 2x + 15 + 5x - 30 + 6x = 180°

⇒ 13x -15 = 180°

⇒ 13x = 195

⇒ x = 15

Therefore, m∠J = 45° , ∠I = 45° and m ∠M = 90°

(b). Now, ΔJIM is a right angled triangle right angled at M.

Also, ∠J = ∠I = 45°

So, JM = IM ( because in a triangle sides opposite to equal angles are equal)

So, ΔJIM is an isosceles triangle because its two sides are equal.

Hence, ΔJIM is a right angled isosceles triangle right angled at M.

8 0
3 years ago
If you have an average 90. Give two numbers other than 90 that would make the average 90
klemol [59]

Answer:

The numbers 180 and 0 would make the average 90

Step-by-step explanation:

we know that

To find the average of two numbers, add the numbers and then divide by two.

Let

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y ----> the other number

The average is equal to

(x+y)/2

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the average is equal to

(180+0)/2=90

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3 years ago
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zzz [600]

Answer:

i dont understand

Step-by-step explanation:

7 0
3 years ago
‘write an equation of the line that passes through each pair of points’ (1,2) and (4,8)
Levart [38]

<u><em>Hi there! </em></u>

Step-by-step explanation:

Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}

\frac{8-2}{4-1}=\frac{6}{3}=2

<em><u>So therefore, the slope is 2.</u></em>

<em><u>Final answer is 2.</u></em>

<em><u>*The answer must have a positive sign.*</u></em>

I hope this helps you!

Have a nice day! :)

-Charlie

:D

8 0
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