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2 years ago

I need help with this if you get it right I will mark you as BRAINLEST

Mathematics

1 answer:

lina2011 [118]2 years ago

7 0

Answer:

the answer is A as it says shoe in the last one which immediately eliminates that option and as of for store b u only save 5 bucks

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We must use substitution to do this second integral. We can use the substitution t = 7x, which will give dx = Correct: Your answ

tankabanditka [31]

Answer:

Therefore, the solution is:

$\boxed{\int \sin 7x\, dx=-\frac{\cos 7x}{7}}$

Step-by-step explanation:

We calculate the given integral. We use the substitution t = 7x.

$\int \sin 7x\, dx=\begin{vmatrix} 7x=t\\ 7\, dx=dt\\ dx=\frac{dt}{7} \end{vmatrix}\\\\=\int \sin t \cdot \frac{1}{7}\, dt\\\\=\frac{1}{7}\cdot (-\cos t)\\\\=-\frac{\cos 7x}{7}$

Therefore, the solution is:

$\boxed{\int \sin 7x\, dx=-\frac{\cos 7x}{7}}$

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3 years ago

Some people are guessing the number of jelly beans in a jar. Each person who guesses within 15 of the correct number will win a

ddd [48]

N can be 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 over or under the correct amount

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2 years ago

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1 in 4 families now owes money on a

Alecsey [184]

"a rise of a quarter from last year" means the percentage went up by 25%

x = old value

x + 25% of x = x + 0.25x = 1.25x = new value = 0.25 since "1 in 4" means 1/4 = 0.25

So,

1.25x = 0.25

x = 0.25/1.25

x = 0.2

x = 2/10

x = 1/5

Answer: The fraction of families that owed money is 1/5, or 1 in 5.

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2 years ago

Estimate then record the product 95×8

kap26 [50]

Estimate 95 to 90 and 8 to 10
now multiply 90 and 10 = 900

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2 years ago

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How many degrees does the minute hand of a clock travel in one minute

valkas [14]

Answer:

6 degrees.

Step-by-step explanation:

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2 years ago

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