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3 years ago

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Mathematics

2 answers:

mezya [45]3 years ago

8 0

Answer: thank you so much!!!

Step-by-step explanation:

I hope you have a great day and hru

Ymorist [56]3 years ago

7 0

thank you have a amazing day/night

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

4 years ago

What is true about a rhombus and square?

Genrish500 [490]

Answer:

B. all of these are true

Step-by-step explanation:

The Square is a rhombus because all the sides of a square are equal in length. Even, the diagonals of both square and rhombus are perpendicular to each other and bisect the opposite angles. Therefore, we can say the square is a rhombus.

Hope this helped!!

5 0

3 years ago

If f(x) = 2x +4, which of the following is the inverse of f(x)?

netineya [11]

The inverse for f(x)=2x+4 is f-1(x)= x/2 -2

3 0

3 years ago

Find the circumference of the object

ivolga24 [154]

Answer:

28.26

Step-by-step explanation:

circumference= 2πr or πd (diameter)

9 x 3.14=28.26

6 0

2 years ago

What is question a, b, c, d, e, and f? Thank you!

frosja888 [35]

Step-by-step explanation:

a. f(-4)= 2

b. f(0) = 0

c. f(3) = -1.8

d. f(-5) = 0

e. f(x) = -2 => x = 2

f. f(x) = 0 => x = 0 or -5

6 0

3 years ago