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Aleksandr [31]
3 years ago
8

Evaluate the expression. x2−4x for x=−1 no links or files pls.

Mathematics
1 answer:
qaws [65]3 years ago
7 0

Answer:

{x}^{2}  - 4x \\  {( - 1)}^{2}  - 4( - 1) \\ 1 + 4 = 5

I hope I helped you^_^

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What is -5x + 15 = 35 - 10x
dezoksy [38]

Answer:

   x = 4

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    -5*x+15-(35-10*x)=0

Pull out like factors :

             5x - 20  =   5 • (x - 4)

_________________________________________

Solve :    5   =  0

This equation has no solution.

A a non-zero constant never equals zero.

_________________________________________

Solve  :    x-4 = 0

Add  4  to both sides of the equation :

                     x = 4

3 0
3 years ago
Read 2 more answers
Will give brainliest answer
lidiya [134]
The square root of 10 because

sqrt(10) ^2 * 3.14 =

10*3.14 = 31.4
7 0
4 years ago
Read 2 more answers
PLS HELP. Find the first four terms of the recursive sequence defined by the following formula:
Gnoma [55]

Answer:

see explanation

Step-by-step explanation:

Given the recursive formula a_{n} = \frac{a_{n-1} }{4} and

a_{4} = 2 \frac{1}{4} = \frac{9}{4}, then

\frac{a_{3} }{4} = \frac{9}{4} ( multiply both sides by 4 )

a₃ = 4 × \frac{9}{4} = 9

\frac{a_{2} }{4} = 9 ( multiply both sides by 4 )

a₂ = 36

\frac{a_{1} }{4} = 36 ( multiply both sides by 4 )

a₁ = 144

The first 4 terms are

144, 36, 9, 2 \frac{1}{4}

3 0
3 years ago
2(b+3c) equivalent expressions<br>Options: <br><br>3(b+2c)<br>(b+3c) +(b+3c)<br>None of the above
Lana71 [14]
2(b + 3c) → We first need to simplify this.

Simplify.

2b + 6c

1st Option : 

3(b + 2c)

Simplify.

3b + 6c

This is INCORRECT, as it is not equal to 2b + 6c.

2nd Option :

(b + 3c) + (b + 3c)

Simplify.

2b + 6c

This is CORRECT because 2b+6c = 2b+6c

(b + 3c) + (b + 3c)  → Answer

~Hope I helped!~



5 0
3 years ago
PLEASE HELP!! will be marked brainliest!!
Arturiano [62]

Answer:

yup and yup

Step-by-step explanation:

also 1. is                yup and yup

7 0
3 years ago
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