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3 years ago

Hi, can someone please answer this questions, THANKS

Mathematics

1 answer:

aliya0001 [1]3 years ago

3 0

Answer:

supplementary angles add up to 180 degrees and complementary add up to 90 degrees

Step-by-step explanation:

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Kevin went to see his favorite sport team play. His car can go 320 miles on one tank of gas. If he used 50% of a full tank of ga

gregori [183]

Answer:

To find the percentage of something you must multiply it by that number divided by 100. So if it were 25% then you would times 300 by 0.25.

in this case though it is 40% of three hundred, so you would make it a decimal and times 300 by 0.4. which would result in 120 miles

Step-by-step explanation:

YOUR WELCOME :)

3 0

3 years ago

A store marks up merchandise 27%. The original price of an item is $725. What will be the retail price?

bixtya [17]

Answer:

$168

Step-by-step explanation:

cause the store marks up the price by 115%

7 0

3 years ago

Shannon and osaro ate dinner at olive garden Shannon meal was 12.65 and osaro meal was 21.55 if they left a 15% tip what was the

Varvara68 [4.7K]

12.65+21.55=34.20
34.20*.15=5.13
.15 is the percentage of the tip they pay in decimal form in order to multiply it on a calculator.
Answer is $5.13

4 0

3 years ago

Find all complex solutions of 5x^2+5x+3=0.

oksian1 [2.3K]

Answer:

see explanation

Step-by-step explanation:

5x² + 5x + 3 = 0 ← in standard form

with a = 5 , b = 5 , c = 3

Solve using the quadratic formula

x = $\frac{-b+/-\sqrt{b^2-4ac} }{2a}$

= $\frac{-5+/-\sqrt{5^2-(4(5)(3)} }{2(5)}$

= $\frac{-5+/-\sqrt{25-60} }{10}$

= $\frac{-5+/-\sqrt{-35} }{10}$

= $\frac{-5+/-\sqrt{-1(35)} }{10}$

= $\frac{-5+/-i\sqrt{35} }{10}$

Then

x = $\frac{-5}{10}$ ± $\frac{1}{10}$ i $\sqrt{35}$ , that is

x = - $\frac{1}{2}$ - $\sqrt{x} \frac{1}{10}$ i $\sqrt{35}$ , - $\frac{1}{2}$ + $\frac{1}{10}$ i $\sqrt{35}$

5 0

3 years ago

Which values are equivalent to the fraction below? Check all that apply.

Firdavs [7]

D-1/9
Below is why I think it’s D

6 0

3 years ago