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3 years ago

Sorry am dumb I need help pls hurry:/

Mathematics

2 answers:

anzhelika [568]3 years ago

7 0

Ok What question do you need help on

victus00 [196]3 years ago

6 0

Answer:

x = ±20

Step-by-step explanation:

Step 1: Write equation

x² = 400

Step 2: Square root both sides

x = ±√400

x = ±20

Step 3: Check

Plug in x to verify it's a solution.

20² = 400

400 = 400

(-20)² = 400

400 = 400

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Factor the expression completely <img src="https://tex.z-dn.net/?f=%20%7B%20%5Ctimes%20%7D%5E%7B2%7D%20%20-%202x%20-%2063%20"

Ainat [17]

Use form x^2 + bx + c
b = -2
c = -63
find a pair of integers whose product equals c and sum equals b

so, find a product that equals -63 and a sum that equals -2

-9 + 7 = -2
-9 • 7 = -63

write in factored form ->
(x - 9)(x + 7)

7 0

3 years ago

2(x-1) greater than -12

Flauer [41]

2(x-1)>-12
/2 /2
x-1>-6
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3 years ago

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Convert 675 milliliters to liters. 67,500 L 67.5 L 6.75 L 0.675 L

musickatia [10]

675/1000 = 0.675 L (Answer)

In 675 mL x 1L/1000 mL = 0.675 L

7 0

4 years ago

Read 2 more answers

Four friends shared 1/2 of one carton of orange juice and 1/4 of another carton of apple juice. What fraction of each carton of

Natalka [10]

Answer:

$\dfrac{1}{16}$

$\dfrac{1}{32}$

$\dfrac{3}{32}$

Step-by-step explanation:

So in the first carton of orange juice 4 friends shared the juice.

This can be shown as:

$\dfrac{(\dfrac{1}{2})}{4}$

$\dfrac{(\dfrac{1}{2})}{4}=\dfrac{1}{16}$

The 4 friends got 1/16 of the carton each in the first carton of OJ.

Next for the second carton, it can be shown as:

$\dfrac{(\dfrac{1}{4})}{4}$

$\dfrac{(\dfrac{1}{2})}{4}=\dfrac{1}{32}$

The 4 friends got 1/32 of the carton each in the first carton of OJ.

Now to see how much they got in total each, we simply add 1/16 to 1/32

$Total OJ each = \dfrac{1}{16}+\dfrac{1}{32}$

$Total OJ each = \dfrac{3}{32}$

Each friend got a total of $\dfrac{3}{32}$ each from both cartons of OJ.

3 0

3 years ago

D is 1/2 by the way.

Daniel [21]

Rise = 8
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4 0

4 years ago

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