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3 years ago

What

1 answer:

8 0

I assume you want the equation to be solved, so this is a quadratic simultaneous equation.

y = x^2-x-3 ——— (1)
y = -3x+5 ——— (2)

Sub (1) into (2)
(This is the first three steps provided)

x^2-x-3 = -3x+5
0 = x^2+2x-8
0 = (x-2)(x+4) ——— (3)

Solve for x in (3):

x-2 = 0
x = 2

x+4 = 0
x = -4

Sub x into (2)

y = -3(2) + 5
y = -1

y = -3(-4) + 5
y = 17

Hence the solution sets are:

x=2, y=-1
x=-4, y=17

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Answer:

d. $43.00

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3 years ago

For a regular 30-sided polygon, what is the degree of rotation? enter your answer in the box. °

Crank

For a 30 sided regular polygon, We can divide the polygon (30 sides) into 30 inscribed triangles with central vertex angles of = $\frac{360}{30} =12^{o}$ .

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3 years ago

Read 2 more answers

Pls help me this is so hard

Mama L [17]

Answer:

She is not breaking even. The discounted price is .84t, which is less than t.

Step-by-step explanation:

Retail price= 1.4

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40% of 1.4 is .56

Subtract 40% of 1.4 from the retail price because she is marking down.

(1.4)-(.56)=.84

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This problem is difficult because we don't know if she sold any tea by the retail price and if she did how much did she sell.

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3 years ago

A pentagon has an 80° angle and 100° angle. The remaining three angels have a ratio of 2:3:4. The measure of the largest angle,

Genrish500 [490]

Answer:

140,150

Step-by-step explanation:

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3 years ago