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crimeas [40]
3 years ago
11

Simplify this expression -6w + (-8) + 1+ (-7w)

Mathematics
2 answers:
Pepsi [2]3 years ago
7 0

Answer:

-13w -7

Step-by-step explanation:

-6w + (-8) + 1+ (-7w)

Combine like terms

-6w -7w + (-8) + 1

-13w -7

Rzqust [24]3 years ago
3 0

Answer:

\boxed{-6w+(-8)+1+(-7w)=-13w-7}

Step-by-step explanation:

The given expression is  -6w+(-8)+1+(-7w).


This expression is the same as;


 -6w+-8+1+-7w.

Or

 -6w-8+1-7w.


We regroup the terms to obtain;


-6w-7w-8+1


We simplify to get

-13w-7


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Find the x-intercept(s) and the coordinates of the vertex for the parabola.
Arada [10]

Answer:

see explanation

Step-by-step explanation:

Given

y = x² - 2x - 8

To find the x- intercepts let y = 0 , that is

x² - 2x - 8 = 0 ← in standard form

(x - 4)(x + 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x + 2 = 0 ⇒ x = - 2

x- intercepts : x = - 2, x = 4

The x- coordinate of the vertex is mid way between the x- intercepts, that is

x_{vertex} = \frac{-2+4}{2} = \frac{2}{2} = 1

Substitute x = 1 into the equation for corresponding y- coordinate

y = 1² - 2(1) - 8 = 1 - 2 - 8 = - 9

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8 0
3 years ago
27- 2b greater or equal to - 6
dezoksy [38]
27-2b > -6
-2b > -6-27
-2b > -33
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b < 16.5
(all the signs are supposed to have a line under them to make them greater or equal or less than or equal to)
5 0
3 years ago
The total cost (c) in dollars of renting a car for n days is given by the inequality LaTeX: c\ge125+50nc ≥ 125 + 50 n. What is t
zysi [14]

Answer:

<h3>6 days</h3>

Step-by-step explanation:

Given the inequality expression of the total cost (c) in dollars of renting a car for n days as c ≥ 125 + 50n

To get the maximum number of days for which a car could be rented if the total cost was $425, substitute c = 425 into the expression and find n

425 ≥ 125 + 50n

Subtract 125 from both sides

425 - 125 ≥ 125 + 50n  - 125

300≥ 50n

Divide both sides by 50

300/50≥50n/50

6 ≥n

Rearrange

n≤6

<em>Hence the maximum number of days for which a car could be rented if the total cost was $425 is 6days</em>

<em></em>

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Answer:

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Step-by-step explanation:

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