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Marizza181 [45]
3 years ago
8

SOMEONE DO 7,8, AND 9. ILL GIVE BRAINLIEST

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
8 0

Answer:

7)8:45

8)12:30

9)3:15

Step-by-step explanation:

thanks, please mark brainliest

Basile [38]3 years ago
7 0

Answer:

7 is 9:43 8 6:03 9 i couldn't see that good so 3:17

Step-by-step explanation:

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2. Multiply.<br><br> (3x + 2)(5x^2 - 2x + 6)
alukav5142 [94]
15x^3+4x^2+14x+12
Multiply 3x by every value in the second bracket. Then multiply 2 by every value in the second bracket. Add like terms. (Only answers with the same square are like terms.)
7 0
3 years ago
45 x 60 / 45 = ______ <br><br> pleasee help
AleksandrR [38]

Answer:

60

Step-by-step explanation:

45 x 60/45 = 2700/45

2700/45 = 60

8 0
3 years ago
What is the distance between (2,-1) and (2,5) rounded to the nearest 10th
xxMikexx [17]

Answer:

<h3>             5.0</h3>

Step-by-step explanation:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(2-2)^2+(5+1)^2}=\sqrt{0^2+5^2}=\sqrt{25}=5

5 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
ddd [48]

Answer:

f'(x) = 4x^2 - 3 for x \le -3

Step-by-step explanation:

See attachment for proper question

Given

f(x) = -\frac{1}{2}\sqrt{x + 3}

For

x \ge -3

Required

Determine the inverse function

f(x) = -\frac{1}{2}\sqrt{x + 3}

Replace f(x) with y

y = -\frac{1}{2}\sqrt{x + 3}

Swap the positions of x and y

x = -\frac{1}{2}\sqrt{y + 3}

Multiply both sides by -2

-2 * x =-2 *  -\frac{1}{2}\sqrt{y + 3}

-2x =\sqrt{y + 3}

Square both sides

(-2x)^2 =(\sqrt{y + 3})^2

4x^2 =y + 3

Make y the subject

y = 4x^2 - 3

The inverse has been solved. So, we need to replace y with f'(x)

f'(x) = 4x^2 - 3

Next, is to determine the interval

x \ge -3

Change inequality to \le

x \le -3

Hence, the inverse function is:

f'(x) = 4x^2 - 3 for x \le -3

7 0
3 years ago
HURRY HELP
Gelneren [198K]
<h3>Answer: Choice (a)  $1,653.66</h3>

=====================================================

Work Shown:

Use the compound interest formula

A = P*(1+r/n)^(n*t)

A = 10000(1+0.039/1)^(1*4)

A = 11,653.65589441

A = 11,653.66

That's the amount of money Tammy will have at the end of 4 years.

Subtract off the principal from this value to get the interest.

interest = A - P

interest = 11,653.66 - 10,000

interest = 1,653.66

7 0
3 years ago
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