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Harrizon [31]
3 years ago
9

Help completing the square please?

Mathematics
2 answers:
Mandarinka [93]3 years ago
8 0
X^2 - 20x = 10
x^2 - 20x + 100 = 10 + 100
(x - 10)^2 = 110

Answer:
First box : 100
Second box: 110

Hope it helps
igomit [66]3 years ago
4 0
X^2 - 20x + 100 = 110
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Negative five times a number, x, decreased by the product of two and the quantity of x increased by three is less than or equal
astra-53 [7]

Left Side

if x = a number

five times a number means 5 · a number = 5 · x

add a negative sign; -5·x

simplify; you don't need the multiplication symbol; -5x

minus 2·x = -2x

plus 3 = +3

-5n-2x+3

Sign

less than or equal to = ≤

Right Side

triple of x = 3·x = 3x

4 minus triple of x = 4-3x

4-3x

The final inequality is -5x-2x+3 ≤ 4-3x

♡ Hope this helps! ♡

❀ 0ranges ❀

4 0
3 years ago
Stephine puts 30 cubs in a box. The cubes are 1/2 inch on each side. The box holds 2 layers with 15 cubes in each layer.
mixas84 [53]

Answer:

3 3/4 cubic inches,

Step-by-step explanation:

Stephanie puts 30 cubes in a box. The cubes are 1/2 inch on each side. The box holds two layers with 15 cubes in each layer. What is the volume of the box awnsers 5cubic inches, 7 1/2 cubic inches,3 3/4 cubic inches, 15 cubic inches.

✓From the question we are informed that Stephanie puts 30 cubes in a box. The cubes dimension are 0.5 inch on each of the sides.

✓ Since the sides is 0.5inch each, the volume is (0.5×0.5×0.5) The volume of one cube = (0.5 inch)³ = 0.125 inch³

✓ we can calculate the Volume of 30 cubes as

[ 30 cubes in a box × 0.125 inch³]

= 3.75 inch³

✓ 3.75 inch³ can be converted into fraction as (3 3/4) inch³ which is the third Option.

5 0
3 years ago
Can someone plz answer this correctly and quickly.
rosijanka [135]
V = \pi \pir^{2}h

1. Find the radius. 

8/2 = 4

2. Square the radius.

4^{2} = 16

3. Multiply that by pi.

3.14 * 16 = 50.24

4. Multiply that by the height.

50.24 * 20 = 1004.8

5. Now find 60% of that.

1004.8 * 0.6 = 602.88

V = 602.88 m^{3}

Honestly, it's been a while since I've done this, but I believe this is the answer.
7 0
3 years ago
Simplify the equation _3(_7x_5)
jek_recluse [69]
21X_15 :-)   :-) :-)!!!!! There you go!
5 0
3 years ago
Ravi is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x repr
nexus9112 [7]

Answer:

1. The change per week is $40 as it is the coefficient.

2. The starting amount is $550 as it is the constant.

8 0
2 years ago
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