2 years ago

Quiz

1 answer:

Maru [420]2 years ago

7 0

Need help to but can you mark Brainily

You might be interested in

almond37 [142]

The answer is x=45.

5 0

2 years ago

USPshnik [31]

I think it would be a

3 0

3 years ago

LUCKY_DIMON [66]

If the distance around the earth means circumference, it is, 24,887.64.(not rounded.) C=pi D (pi=3.14 + d=diameter)

8 0

2 years ago

MatroZZZ [7]

Answer:

x=5

y=4

Step-by-step explanation:

Step 1:

Let us solve for x using the $4x-7=13$ equation by isolating terms containing the variable:

$4x-7=13\\4x=20\\\fbox{x=5}$

Great! x is 5... let's find y.

Step 2:

Since we know the value of x, we can use what we know to find y using the other equation:

$5x-2y=17\\$

Given that x=5, we can replace x with 5.

$5*5-2y=17\\25-2y=17\\2y=8\\\\\fbox{y=4}$

I hope this helps! Let me know if you have any questions :)

3 0

2 years ago

Agata [3.3K]

$\sqrt[3]{x^2-8}=2 \\ x^2-8=2^3=8 \\ x^2=16 \\ \\ \boxed{x=4 \ or \ -4}$

6 0

2 years ago