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Sholpan [36]
2 years ago
15

Someone plz help me I will give brainliest !!

Mathematics
1 answer:
JulsSmile [24]2 years ago
3 0

Answer:

I think its 8

Step-by-step explanation:

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Nancy and Kevin collect coins. Nancy has x coins. Kevin has 9 coins fewer than five times the number of coins Nancy has. Write a
Alexus [3.1K]

Answer:

x + (5x-9)

Step-by-step explanation:

x stands for the number of coins Nancy has

Kevin has 9 less than 5 times what Nancy has, so his part of the expression is 5x-9

To find the total number of coins they have, you have to add Nancy's number of coins x plus Kevin's number of coins 5x-9

x + (5x-9)

But you have to put parentheses around Kevin's 5x-9 so that part of the expression is calculated first, as per order of operations

3 0
2 years ago
Help:) Factor f(x) = 4x^3+ 23x^2- 70x + 16 into linear factors given that - 8 is a zero of f(x).
Charra [1.4K]

Answer:

(x + 8)(x - 2)(4x - 1)

Step-by-step explanation:

Given that x = - 8 is a zero then (x + 8) is a factor

Divide f(x) by (x + 8) using Synthetic division

- 8 | 4    23    - 70    16

        ↓  - 32      72   - 16

      ---------------------------------

        4    - 9       2       0

Quotient = 4x² - 9x + 2 = (x - 2)(4x - 1)

Thus

f(x) = (x + 8)(x - 2)(4x - 1)

 

8 0
3 years ago
Which of the following is an arithmetic sequence?
Anna71 [15]

Here is your answer

A. 1,3,5,7,9,11,.....

REASON :

In an AP their is a common difference between two consecutive terms.

i.e. t2-t1=t3-t2=t4-t3=....= constant

The option A satisfies above condition.

HOPE IT IS USEFUL

5 0
3 years ago
The volume of a box (V) varies directly with its length (l). If the box has a volume of 90 cubic inches and a length of 15 inche
Anastasy [175]
90 = k*15
constant of proportionality = 80 / 15 = 6 Answer
4 0
3 years ago
Read 2 more answers
Please help me find x of: x-5=11-3
Anastasy [175]

Answer:

x=0

Step-by-step explanation:

x-5=11-13

x-5=-2

+5 on both sides

x=0

5 0
3 years ago
Read 2 more answers
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