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Zielflug [23.3K]
2 years ago
12

(−2 − √3)(−2 + √3) simplified​

Mathematics
2 answers:
e-lub [12.9K]2 years ago
5 0

Answer:

follow me!

Step-by-step explanation:

the answer is(0) un the radical 3

nata0808 [166]2 years ago
4 0

Answer:

1

Step-by-step explanation:

To simplify this, we can use foil:

  • First: -2 × - 2 = 4
  • Outside: -2 × √3 = -2√3
  • Inside: -√3 × -2 = +2√3
  • Last: -√3 × √3 = -3

From this, we get 4 - 2√3 + 2√3 - 3 which can be simplified to 1

Hope this helps!

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Part 1
vekshin1

Divide bags of sand by gallons of water:

14 /6 = 2.33

21/9 = 2.33

The ratio is the same, so this means for every gallon of water you need 2.33 bags of sand.

Convert the fractions into decimals and you will get 7/3 = 2.33

The answer for Part 1 is D) 7/3

For part 2, multiply the gallons of water by 2.33 to get the number of sand bags needed:

12 x 2.33 = 27.99, which rounds to 28.

The answer is C) 28 bags.

5 0
3 years ago
Read 2 more answers
Sophia and isabella get a reward of 117 dollars ina ratio of 1:8.What fraction of the reward does sophia get?
worty [1.4K]

Answer:

The amount of reward that Sophia receives is \$13

Step-by-step explanation:

Let

x------> amount of reward that Sophia receives

y-----> amount of reward that Isabella receives

we know that

\frac{x}{y}=\frac{1}{8}

x=\frac{1}{8}y ------> equation A

x+y=117 -----> equation B

Substitute equation A in equation B

\frac{1}{8}y+y=117

\frac{9}{8}y=117

y=117*8/9=\$104

Find the value of x

x=\frac{1}{8}(104)=\$13

3 0
3 years ago
HELPPPP PLEASEEEEEEEEWEE HELPPPPPPPP
Nookie1986 [14]

Answer:

calculate the rise over the run.

therefore, it's -8/7

Topic: coordinate geometry

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

4 0
3 years ago
Read 2 more answers
I will give you brainliest!!!! Use substitution method to solve the system of equations. y=6x-5 y=x+5
solong [7]

Answer:

(2,7)

Step-by-step explanation:

y=6x-5

y=x+5

Since they are both equal to y, set them equal to each other

6x-5 = x+5

Subtract x from each side

6x-x-5 = x+5-x

5x-5 = 5

Add 5 to each side

5x-5 +5 = 5+5

5x=10

Divide by 5

5x/5 = 10/5

x=2

y = x+5

y = 2+5

y =7

6 0
3 years ago
Read 2 more answers
Each letter of the word "mathematics" is written on a separate piece of paper and put into a bag. you are asked to pick a random
yarga [219]
M,t,h,c,s are all consonants. "Mathematics" has 11 letters and 7 of them are consonants and the other 4 are vowels. 100%/11 = 9.091. 9.091 x 4 = 36.36. So, there is a 36.36 % (4/11) chance that you will pick a vowel and a 63.64 % (7/11) chance that you will pick a consonant. 

I hope that helps!!! 
6 0
3 years ago
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