3 years ago

22.5 + 7(n−3.4) simplified

Mathematics

1 answer:

NARA [144]3 years ago

7 0

-1.3+7n is the answer

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In 2017, Sage went to dance class four hours a week. In 2018, the amount of time she goes to dance class has increased by 40%. H

Fiesta28 [93]

Answer:

1.6 hours

Step-by-step explanation:

40% of 4

turn 40% to a decimal by moving the percent to the left twice (0.40)

multiply 0.40 by 4

you get 1.6

1.6 is your answer

hope i helped, tell me if you get it right! :)

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2 years ago

Sin (3x)cos(6x) - cos (3x) sin(6x)=-0.9

geniusboy [140]

Answer:

x=21.38602241

Step-by-step explanation:

Given: sin(3x)cos(6x) - cos(3x)sin(6x) = -0.9

Rewrite as difference identity: sin(3x-6x)=-0.9

Combine like terms in parentheses: sin(-3x)=-0.9

Take the inverse sine of both sides: -3x=-64.15806724

Divide both sides by -3: x=21.38602241

Refer to the sheet to see all trigonometric identities

6 0

3 years ago

Read 2 more answers

If two angles are supplementary to the same angles, then ?

Eduardwww [97]

Supplementary angles add to 180 degrees. If A and B are both supplementary to C, the two angles must be congruent since A=B=180-C.

8 0

3 years ago

Mr. Jackson and Ms. Collins 3rd grade classes are going on a field trip to the science museum. There are 20 children in one clas

elena55 [62]

the answer is 6 because 42 divided by 7 = 6

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3 years ago

What steps can you use to solve the equation 9 equals Y +4

kirill115 [55]

Answer:

See Below

Step-by-step explanation

1) subtract 4 from both sides

You have the answer

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3 years ago