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3 years ago

-3a + 12b=24 -a+9b=6

1 answer:

6 0

Antti entered a -kilometer race. His goal is to finish in one hour. He starts off sprinting, and completes the first kilometers of the race at an average speed of kilometers per hour.

To achieve his goal of a one-hour finish time, what average speed (in kilometers per hour) must Antti maintain for the last kilometers of the race?

Enter your answer as a number in decimal form, without units.Hint(s):

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Mrs. Rodriguez wants to pay her restaurant bill which is $24.00. If Mrs. Rodriguez wants to leave a 20% tip on the total, how mu

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28.80

Step-by-step explanation:

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3 years ago

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guajiro [1.7K]

Answer:

56.7

Step-by-step explanation:

Hello There!

<u>Trigonometric Ratios</u>

sin = opposite divided by hypotenuse

cos = adjacent divided by hypotenuse

tan = opposite divided by adjacent

we need to find x and we are given its opposite side length and the hypotenuse

so the trigonometric ratio we need to use is sin

knowing that sin = opposite side divided by hypotenuse we create an equation

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our final step is to round to the nearest tenth of a degree

so we can conclude that the measure of angle A is 56.7

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Another question this math is not my favorite ? Struggling but son what understanding it . Help please

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3 years ago

Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki

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Mia walked 7km/h so after 1 hour, she is 7 km north of the house of Julia

Samantha walked 11km/h so after 1 hour, she is 11 km west of the house of Julia.

The points where Mia and Samantha are after 1 hour , and the house of Julia form a right triangle with sides 7 and 11 km. The distance between the girls, is the hypotenuse of his triangle.

by the pythagorean theorem:

$MS= \sqrt{ 7^{2} + 11^{2} }= \sqrt{49+121}= \sqrt{170}= 13 (km)$

Answer: 13 km

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3 years ago

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Answer:

GCF: 2x

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Step-by-step explanation:

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