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jolli1 [7]
2 years ago
13

Please help I’ll mark brainliest! Thank you and have a great day/night!

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
7 0

Answer:

-10

Step-by-step explanation:

You always want to solve the inner function first.

g(-2)=(-2)³+3

=-8+3

=-5

g(-2)=-5 so you can replace g(-2) with -5

Now you just have f(-5)

Solve.

f(-5)=-5-5

f(-5)=-10

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Veronika [31]
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3 years ago
What is the product of 7/8×1/2
Gelneren [198K]

\frac{7}{8}   \times  \frac{1}{2}

=  \frac{7 \times 4}{8}

=  \frac{28}{8}

=  \frac{ \cancel{28}}{ \cancel{8}}

= \frac{14}{4}

=  \frac{ \cancel{14}}{ \cancel{4}}  =  \frac{7}{2}

<h2>The required answer is 7/2 </h2>

3 0
3 years ago
Find the sum of first 15 terms of an AP whose 4th and 9th t terms are -15 and -30 respectively.
Serga [27]

Answer:

Sum of the first 15 terms = -405

Step-by-step explanation:

a + 3d = -15 (1)

a + 8d = -30 (2)

Where,

a = first term

d = common difference

n = number of terms

Subtract (1) from (1)

8d - 3d = -30 - (-15)

5d = -30 + 15

5d = -15

d = -15/5

= -3

d = -3

Substitute d = -3 into (1)

a + 3d = -15

a + 3(-3) = -15

a - 9 = -15

a = -15 + 9

a = -6

Sum of the first 15 terms

S = n/2[2a + (n − 1) × d]

= 15/2 {2×-6 + (15-1)-3}

= 7.5{-12 + (14)-3}

= 7.5{ -12 - 42}

= 7.5{-54}

= -405

Sum of the first 15 terms = -405

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2 years ago
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solniwko [45]

Answer:t

Step-by-step explanation:

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Option 3

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If a rabbit can move 2 1/4 miles every hour, then how many hours would it take for the rabbit to go 9 miles
d1i1m1o1n [39]
It would take 4 hours to go 9 miles.
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