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3 years ago

2x = 4y + 8, x - 2y = 4 System of Equations

Mathematics

1 answer:

sineoko [7]3 years ago

6 0

Answer:

Step-by-step explanation:

2x=4y+8

divide by 2

x=2y+4

and x-2y=4

or x=2y+4

so both the equations represent the same line.

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9. If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the

AnnyKZ [126]

Answer:

If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the

following expressions represents the length of one side of the square?

A 2x -9

2x + 9

C 4x - 18

D 4x + 18

Step-by-step explanation:

answer 4x+18

3 0

3 years ago

Please help! I really need help on this. Also if I could get an explanation on this it would really help.

Firdavs [7]

Answer:

x= 10

Step-by-step explanation:

Since the triangles are congruent

<B = <E

50 = 5x

Divide each side by 5

50/5 = 5x/5

10 =x

4 0

3 years ago

Read 2 more answers

Melissa used 4 cups of sugar to bake 54 cookies. If she’s only used 1 cup of sugar, what would be an equivalent ratio of cups to

daser333 [38]

Answer:

$\frac{2}{27}$

Step-by-step explanation:

We have given that melissa used 4 cups of sugar to bake 54 cookies.

That means 1 cup of sugar will be used to bake $\frac{54}{4}=\frac{27}{2}$ by unitary method

We have to find the ratio of cups to the cookies

We are using 1 cup of sugar

And cookies will be $\frac{27}{2}$

$\text{equivalent ratio}=\frac{1}{\frac{27}{2}}=\frac{2}{27}$

3 0

3 years ago

What additional information could be used to prove ΔABC ≅ ΔMQR using SAS? Select two options. m∠A = 64° and AB = MQ = 31 cm CB =

enyata [817]

Answer:

m∠R = 60° and AB ≅ MQ

m∠Q = 56° and CB ≅ RQ

Step-by-step explanation:

Given data :

Prove ΔABC ≅ ΔMQR using SAS

The missing information to prove ΔABC ≅ ΔMQR using SAS

m∠R = 60° and AB ≅ MQ

m∠Q = 56° and CB ≅ RQ

3 0

3 years ago

Read 2 more answers

Svetradugi [14.3K]

Answer:

The right answer is:

Option OB: f(1) = -9

Common difference: 7

Step-by-step explanation:

Given sequence is:

-9, -2, 5, 12,...

Here the first number is f(1)

Common Difference:

Common difference is the difference between consecutive terms of an arithmetic sequence. It is denoted by d.

In the given sequence,

f(1) = -9

f(2) = -2

f(3) = 5

$d=f(2)-f(1) = -2-(-9) = -2+9 = 7\\d = f(3)-f(2) = 5-(-2) = 5+2 = 7$

Hence,

The right answer is:

Option OB: f(1) = -9

Common difference: 7

7 0

3 years ago