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miv72 [106K]
3 years ago
13

Hello can someone help! i will make them brainliest!

Mathematics
2 answers:
Roman55 [17]3 years ago
6 0
B (92) is the answer
Nady [450]3 years ago
4 0

Answer:

B ( 92 degrees)

Step-by-step explanation:

1. Find y

In order to find z, we need to find y.

All triangles add up to 180 degrees, so y would be

180 - (48 + 44) = 88

y is 88 degrees

2. Find z

So now we know y is 88, we can find z

The circle of all angles of y and z = 360 ( because full angle)

so our equation is:

(88 + z)2 = 360

Divide by 2

88 + z = 180

z = 92

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An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $6750 and her st
pantera1 [17]

Answer:

3.5%

Step-by-step explanation:

1. calculate starting total

6750 + 4210=10960

starting amount = $10,960

2. calculate stock    A2's value

  • decreased by 18%

to make the percentage usable in this equation we need to divide it by 100 to get it in decimal form. ⇒ \frac{18}{100} = 0.18

  • multiply stock A1 by perctage decimal to get the amount decreased

6750(0.18)=1215 ($1,215)

  • subtract stock A1 by decreased amount to get stock A2's value

6750-1215=5535

A2 = $5,535

3. calculate stock    B2's value

  • increased by 20%

to make the percentage usable in this equation we need to divide it by 100 to get it in decimal form. ⇒ \frac{20}{100} = 0.20

  • multiply stock B1 by perctage decimal to get the amount increased

4210(0.20)=842 ($842)

  • add stock B1 with increased amount to get stock B2's value

4210+842=5052

B2 = $5,052

4. get new amount of account

5052+5535=10587

new amount = $10,587

5. find percentage decrease of starting amount to new amount

  • divide starting amount by the new amount

\frac{10960}{10587} = 1.03523188816

  • then subtract by 1

1.03523188816-1 =0.03523188816

  • multiply by 100 to convert to percentage form

0.03523188816(100) =3.523188816

  • and round to <u>nearest tenth</u>

answer is ≈ 3.5%

::: (\_(\ Hope

*: (=' :') this

•.. (,('')('') helped :)

4 0
2 years ago
Symify 9 to the 2 power / 9 to the 7 power
fenix001 [56]

9514 1404 393

Answer:

  1/9^5

Step-by-step explanation:

  \dfrac{9^2}{9^7}=\dfrac{9\cdot 9}{9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9}=\dfrac{1}{9\cdot 9\cdot 9\cdot 9\cdot 9}=\boxed{\dfrac{1}{9^5}}

_____

An exponent is an indicator of repeated multiplication. As you can see, factors in the numerator cancel those in the denominator, so the result is the difference of the exponents.

8 0
3 years ago
A rack has a volume of 10 cm3 and a mass of 25g. What is the density?​
valentinak56 [21]

Answer:

Step-by-step explanation:

density is mass divided by volume, so 25g divided by 10 cm = 2.5 g

4 0
3 years ago
after two years on the job, an engineer salary was $60,000. after seven years on the job, her salary was $66,000. let y represen
galina1969 [7]

Answer: y = 1200m + 57,600

Step-by-step explanation: To be a line, let's say that x is the numbers of years on the job and y the salary.

So, we have (2,60000) and (7,66000)

y = mx + b

66000 = 7m + b

60000 = 2m + b (-)

________________________

6000 = 5m

m = 6000/5 = 1200

60000 = 2m + b

60000 = 2.1200 + b

60000 = 2400 + b

b = 60000 - 2400

b = 57600

y = mx + b

y = 1200m + 57,600

8 0
3 years ago
The prime factorization of a number is 2^3*3^2*5. Which is a true statement about the factors of the number?
Eddi Din [679]
2^3 = 8
3^2 = 9

8 * 9 * 5 = 360
 15 is a factor of 360, so the answer would be <span>1. Fifteen is a factor of the number because both 3 and 5 are prime factors</span>
7 0
3 years ago
Read 2 more answers
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