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3 years ago

Find all points on the circle x 2 + y 2 = 100 where the slope is 3 4

1 answer:

5 0

(x/sqrt(100-x^2)) = 3/4
x^2 / 100 - x^2 = 9/16
16x^2 = 9(100 - x^2)
16x^2 = 900 - 9x^2
25x^2 = 900
5x = (+-) 30
x = 0 +6 , x = 0 - 6 , and you can find the corresponding y coordinate for each.

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Which equation is NOT true? A. 55 + 27 + 45 =100 + 27 C. 14(126)= 14(100) + 14(26) B. 5⦁ 7⦁ 2 = 2⦁7 D. 31(152) = 30(150) + 1(2)

stiv31 [10]

Answer:

5⦁ 7⦁ 2 = 2⦁7 is not true

Step-by-step explanation:

70 ≠ 14

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4 years ago

Explain he differences between properties of equality and properties of inequality when solving equations and inequalities.

nadya68 [22]

The difference between properties of equality and properties of inequality that you need to take into account when you are solving equalities and inequalities is the effect that some operations have on the sign.

1) The multiplicative property of equality permits you to multiplicate both members (sides) on an equality times a factor and the equality will remain. But in an inequality, while the factor is positive the inequality will remain but when the factor is negative, the sign of the inequality will change.

2) The same is true about the division property:

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3 years ago

Factor pair of 56 because I don't know

pogonyaev

Those factors are:

1,2,4,7,8,14,28,56

6 0

4 years ago

4x-y=5 in slope intercept form solve for y

White raven [17]

Answer:

$y=-5+4x$ and the slope intercept is $y=4x-5$

5 0

3 years ago

Read 2 more answers

25 points to whoever answers ASAP!!!! Find the measure of arc DF. Circle A with chords EF and CD that intersect at point G, the

vlabodo [156]

Answer:

Answered: Visitor

Answers:

k = 13The smallest zero or root is x = -10

===============================

Work Shown:

note: you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

m∠EGC=70°

Step-by-step explanation:

we know that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite

m∠EGC=(1/2)[arc EC+arc DF]

Find the value of x

we have

m∠EGC=(7x+7)°

arc EC=50°

arc DF=10x°

substitute and solve for x

(7x+7)°=(1/2)[50°+10x°]

14x+14=50+10x

14x-10x=50-14

4x=36

x=9

Find the measure of angle EGC

m∠EGC=(7x+7)°

substitute the value of x

m∠EGC=(7(9)+7)°=70°.

Step-by-step explanation:

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4 years ago