3 years ago

Y=x^2-4x-3 y=-2x^2-5x+1

Mathematics

1 answer:

Serggg [28]3 years ago

6 0

Hi! This is the solution of your equation!

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Find the value of x. A.18 B.15 C.16 D.19 PLEASE HELP!!!!!

In-s [12.5K]

Answer:

x = 19

Step-by-step explanation:

123°+3x = 180°

3x = 180°-123°

3x = 57

x = 57/3

x = 19

The reason why we use 123° + 3x = 180° because both are adjacent angles. Adjacent angles add up to 180°

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2 years ago

What is is 1/4 + 9/10y -3/5y +7/8 written in simplest form?

Leviafan [203]

Answer:

Step-by-step explanation:

$\frac{1}{4}+\frac{9}{10}y - \frac{3}{5}y+\frac{7}{8}\\\\=\frac{1}{4}+\frac{7}{8}+\frac{9}{10}y-\frac{3}{5}y\\\\$

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8

9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

$= \frac{1*2}{4*2}+\frac{7}{8}+\frac{9}{10}y-\frac{3*2}{5*2}y\\\\=\frac{2}{8}+\frac{7}{8}+\frac{9}{10}y-\frac{6}{10}y\\\\=\frac{9}{8}+\frac{3}{10}y$

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2 years ago

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Jenny’s great grandmother is 90 years old Jenny is 12 years old. What percent of Jenny’s great grandmothers age is Jenny age

Bogdan [553]

To find Jenny's age as a percentage of her great grandmother's age :

$\dfrac{12}{90} \times 100$

$= 13\dfrac{1}{3} \ \%$

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3 years ago

Can someone help me with this, im not really good at math and i dont understand this :(

cluponka [151]

Answer:

y = 2x + 4

Step-by-step explanation:

First find 2 points on the line to determine slope.

(0, 4) and (2, 8)

Slope = $\frac{8-4}{2-0}=2$

y = 2x + b

b = y - intercept

b = 4

y = 2x + 4

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3 years ago

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Please!! algebra 1. find the intercepts 90=6a+3s

horsena [70]

Divide both sides by -3 and the answer s=-2a + 30

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3 years ago