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MariettaO [177]
3 years ago
11

Fill in the blank with the correct response.

Mathematics
2 answers:
trapecia [35]3 years ago
8 0

Answer:

Step-by-step explanation:

437 = (21 + x)(21 - x)

(21 + x)(21 - x) = 437             {(a + b)(a - b)= a² - b²}

21² - x² = 437

441 - x² = 437          {subtract 441 from both sides}

-x² = 437 - 441  

-x² = - 4             {Divide both sides by [-1] }

x² = 4

x² = 2²

x = 2

cricket20 [7]3 years ago
5 0

Answer:

2

Step-by-step explanation:

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6
Ede4ka [16]

Answer:

5 percent per annum

Step-by-step explanation:

interest rate:

interest: $1800

principal: $18000

duration: 2 years

1800/ 18000 * 100

result is 10%

Since interest is 10% in 2 years, 10% / 2

interest is 5% per year.

8 0
3 years ago
Jillian buys 200 shares of a company at $150 a share. She sells them at $175 a share. What is her capital gain or capital loss?
Radda [10]
200 x 150 = 30,000 to purchase
200 x 175 = 35,000 when selling

35000 - 30000 is 5,000 capital gain
4 0
4 years ago
Read 2 more answers
Will brainlist please helping
wlad13 [49]

tried to do it on text but It was pretty hard

4 0
3 years ago
What is one way of writing 10-3?
Grace [21]
Greetings!

"10-3" can also be written as:
1) -3+10
2)10+(-3)

Hope this helps.
-Benjamin


4 0
3 years ago
Read 2 more answers
What is the measure of an angle if the measures of its two adjacent supplementary angles add up to 100°?
Sindrei [870]
<h3>Answer:  130</h3>

Explanation:

Let x be the unknown angle we want to find.

Let y be adjacent and supplementary to x. This means x+y = 180

Let z also be adjacent and supplementary to x. So x+z = 180 also

Subtracting the two equations leads to y-z = 0 and y = z. So effectively we've proven the vertical angle theorem.

Since the supplementary angles to x add to 100, we know that y+z = 100. Plug in y = z and solve for z

y+z = 100

z+z = 100

2z = 100

z = 100/2

z = 50

Therefore,

x+z = 180

x+50 = 180

x = 180-50

x = 130

8 0
3 years ago
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