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3 years ago

Please help ill give brainliest, and explain the answer too please

Mathematics

1 answer:

Basile [38]3 years ago

3 0

Answer:

x^2+2

Step-by-step explanation:

since (x^2+2x+1) is negative from the subtraction symbol in front, the entire thing turns negative. The equation turns into 2x^2+2x+3-x^2-2x-1=...

if you solve this equation you will get x^2+2 by adding the like terms together

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Jack has 5 craft sticks. He needs 4 times that number for a project.how many craft sticks does jack need altogether?

Katarina [22]

Jack would have twenty craft sticks because four times that number is the same as x4 so you would do 5x4=20.

8 0

3 years ago

Read 2 more answers

1 The metal used to make a coin is a mixture of steel and copper. The ratio mass of steel

Masteriza [31]

$\huge{ \underline{ \underline{ \gray{ \bf{Solution:}}}}}$

Let,

Mass of the steel be 108x
Mass of the copper be 7x
Then, Total mass = 108x + 7x = 115x

Given,

Total mass of the coin = 230 mg

That means,

⇛ Total mass of the coin = 230 mg

⇛ 115x = 230 mg

⇛ x = 230 mg/115

⇛ x = 2 mg

Then,

Mass of the steel = 108(2) = 216 mg
Mass of the copper = 7(2) = 14 mg

☁️ ANSWER - 14 mg (Mass of copper)

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7 0

3 years ago

there are 6 brown, 5 blue, and 2 orange marbles in a hat what is the probability of picking 2 orange marbles in a row without re

Bess [88]

You have a probability of 7% to pick out the first orange marble then you have a probability of 8% to pick out the second orange.

4 0

2 years ago

If he has his choices narrowed down to 77 hip-hop, 55 jazz, 77 pop, and 88 blues songs, and he wants to play all 55 jazz songs,

Gnom [1K]

Answer:

1.27 × (10^73)

Step-by-step explanation:

55!

= 1.2696403 × (10^73)

4 0

3 years ago

WHAT IS X<br> PLEASE HELP 50 POINTS

Iteru [2.4K]

Answer:

x=52

Step-by-step explanation:

90+34

124

180 (sum of all interior angles) - 124

x+72+56=180 (straight line)

x+128=180

-128 -128

x=52

*replace to verify*

52+72= 124

124+56= 180 (straight line)

4 0

2 years ago