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lidiya [134]
3 years ago
8

Solve for Y 5x-4y=10

Mathematics
1 answer:
Reika [66]3 years ago
7 0
I hope this helps you

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Find the area of the square in inches^2 and enter your answer below. Do not
pogonyaev

Answer:

10.24

Step-by-step explanation:

Area of a circle=sides²

Area of a circle=(3.2)²=3.2(3.2)=10.24

7 0
2 years ago
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
pickupchik [31]
B. the diagonals are congruent - the graph represents two equal, parallel lines, making the two segments congruent
3 0
3 years ago
Given that D(x) = 2x, select all of the following that are true statements
Keith_Richards [23]

Answer:

D(x) is a function

D(x) is a direct variation

D(x) is a rule for the set of points (5.10). (6, 12) and (-2,-4)

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem

D(x)=2x

D(x) is a direct variation (linear function)

The variable x is the independent variable or input value

The variable D(x) is the dependent variable or output value

<u><em>Verify each statement</em></u>

case 1) D(x) is a function

The statement is true

see the explanation

case 2) x is the dependent variable

The statement is false

The variable x is the independent variable or input value

case 3) D(x) is a direct variation

The statement is true

see the explanation

case 4) D(x) is a rule for the set of points (5.10). (6, 12) and (-2,-4)

The statement is true

Because

For x=5

substitute in the linear equation

D(x)=2(5)=10 ---> is ok

For x=6

substitute in the linear equation

D(x)=2(6)=12 ---> is ok

For x=-2

substitute in the linear equation

D(x)=2(-2)=-4 ---> is ok

6 0
3 years ago
Evaluate 5c+cd when c=1/5 and d=15
oee [108]
5*1/5+1/5*15=4
    1  +  3   =4

This should equal 4 if I did this correctly.
4 0
3 years ago
Two stores are having a sale on T-shirts.Rose spends $63 for three T-shirts from store A and one from store B. Manny spends $140
Digiron [165]
Let a and b be store A and store B, respectively. Then:
3a+b=63
5a+4b=140
So
12a+4b=252
5a+4b=140
7a=112
a=16
b=15
☺☺☺☺
7 0
2 years ago
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