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3 years ago

The first two steps in determining the solution set of the system of equations, y = -x2 + 4x + 12 and y=-3x + 24,

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

5 0

Answer:

Step-by-step explanation:

(3,15) and (4,12)

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Peppers cost $17.00 for 51 pounds. How much for 1 pound?

Gala2k [10]

Lets set up a ratio!

17.00USD per 51 pounds and 1 pound per x dollars.

$\frac{17}{51} = \frac{1}{x}
$

next step. cross multiply for the answer :)

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4 years ago

This is pre calculus please help !Describe three ways to determine the measure of segment YZ.

Dmitry [639]

(1) Using trigonometric ratios:
$sin(30) = \frac{YZ}{50}$
$YZ = 25$

(2) Using Pythagoras' Theorem:
$cos(30) = \frac{XY}{50}$
$50cos(30) = XY$
$50^{2} - 50^{2}cos^{2}(30) = YZ^{2}$
$2500 - 2500cos^{2}(30) = YZ^{2}$
$YZ = 25$

(3) Using sine rule:
$\frac{50}{sin(90)} = \frac{YZ}{sin(30)}$
$50 = \frac{YZ}{sin(30)}$
$50sin(30) = YZ$
$YZ = 25$

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4 years ago

Read 2 more answers

Twice the sum of a number and three is 88.

Xelga [282]

Answer:

x=41

Step-by-step explanation:

2(x+3) = 88

(distribute the 2)

2x+6 = 88

- 6 - 6

2x = 82

div by 2 on both sides

x = 41

4 0

3 years ago

Jordan has a length of string that is 11 1\8 inches. If he cuts off a 2 1\2 inch piece, how long will the remaining string be?

Olin [163]

First convert the 2 1/2 into eighths to be able to subtract the numbers. That becomes 2 4/8. Next set up the subtraction. 11 1/8 - 2 4/8. Note that 4/8 is bigger than 1/8, meaning we have to borrow 8/8 from 11 making our problem 10 9/8 - 2 4/8. Now we subtract as normal: 10 - 2 = 8; 9/8 - 4/8 = 5/8.
Final answer: 8 5/8 inches

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3 years ago

I need it badly as soon as possible if you can ASAP

Softa [21]

The answers are:

9:D

10:C

Have a good day! (or night, depending when u see this)

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4 years ago