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2 years ago

Solve the system of equations. y = -6x + 9 y = -3x + 3

Mathematics

1 answer:

Nady [450]2 years ago

4 0

What do the directions tell you to do? also did you take notes? refer back to them to help you understand more.

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Lin correctly compares the values of the digits in 644.66. Select the comparison Lin could have made.

katrin2010 [14]

Answer:

D. The value of the hundreds digit is 10,000 times the value of the hundredths digit.

Step-by-step explanation:

all of the other options are incorrect

0.01 x 10,000 = 100

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2 years ago

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Formula of quadratic function and their graph

Mama L [17]

Answer:

-b +/- √b^2-4ac

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2 years ago

A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the

Lady bird [3.3K]

Write the equations: $2.9s+4.7h=6076
 \\ h= 4s$
Substitute for h: $2.9s+4.7(4s)=6076$
Solve for s: $2.9s+4.7(4s)=6076 \\ 2.9s+18.8s=6076 \\ 21.7s=6076 \\ s=280$
There were 280 downloads of the standard version. There were 1120 downloads of the high-quality version.

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2 years ago

Given the diagram below, what is the length of segment EF

bekas [8.4K]

Let x = length of segment EF.

Assume that
(a) line segments AD, EF, and BC are parallel, and
(b) the vertical distance between AD and EF is equal to the vertical distance between EF and BC.

Then from similarity between geometric shapes, we can write
$\frac{2.2}{x} = \frac{x}{4.8}$
$x^{2} =(2.2)(4.8)=10.56$
x=3.2 (nearest tenth)

Answer: B. 3.2

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2 years ago

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x squared plus y squared equals 80. My daughter has to work out what x and y are. I have worked it out by trial and error, but k

olya-2409 [2.1K]

you Need to think of 2 square numbers that add up to make 80

answer:

64 + 16

this means that x = 8 and y = 4

because of the square roots

y = 4

and

x = 8

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3 years ago