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olga2289 [7]
3 years ago
13

-4(5c+7)-3c+13 simplify, pls include step-by-step thank you <3

Mathematics
2 answers:
podryga [215]3 years ago
7 0

Answer:

-23c - 15

Step-by-step explanation:

-4(5c+7) - 3c + 13

Expand brackets.

-20c - 28 - 3c + 13

Rearrange.

-20c - 3c - 28 + 13

Add or subtract like terms.

-23c - 15

o-na [289]3 years ago
6 0
See the steps below, hope this helps!

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What are the solutions to the equation 0 = x2 – x – 6?
ioda
Factor to this equation out, the easiest way is to solve for the two x values that add up to -1 but when multiplied is equal to -6. It should look like this: (x +- ?)(x +- ?). 
The factored out form is then (x - 3)(x +2), because -3 + 2 = -1 and when multiplied together gives -6. 
x - 3 = 0
x = 3
x + 2 = 0
x = -2
The two solutions are therefore, x = 3 and x = -2. 

Hope it helps
3 0
3 years ago
Read 2 more answers
Gini has a small garden that is 234 yards in length and 1 yard and with she grows roses 1/2 of her garden how many square yards
kipiarov [429]

Answer:

117 square yards.

Step-by-step explanation:

Given:

Length of garden = 234 yards

Breadth of garden = 1 yard

She grows roses 1/2 of her garden.

Question asked:

How many square yards are Gini's garden has roses ?

Solution:

First of all we will find area of rectangular garden.

Area \  of \  rectangle = Length\times breadth

                             =234\times1 =234  \ square \ yards

Then, as here given half of garden, she grows roses, we will find half of the

rectangular garden.

\frac{1}{2} \ of 234\\\frac{1}{2} \times234 =117\ square\ yards

Therefore, 117 square yards of her garden has roses.

5 0
3 years ago
Explain why a regular polygon cannot have an interior angle that is 40°.
Minchanka [31]

Answer:

Explained below.

Step-by-step explanation:

The formula for the interior angle of any regular polygon is given as;

Interior Angle = 180(n - 2)/n

Where n is number of sides

We are told the interior angle is 40°

Thus;

180(n - 2)/n = 40

Cross multiply to get;

180n - 360 = 40n

180n - 40n = 360

140n = 360

n = 360/140

n = 2.57

Number of sides of a regular polygon cannot be in decimal nor can it have less than 3 sides.

Thus, a shape with interior angle of 40 cannot be a polygon.

8 0
2 years ago
(-41) + (-40) = ?
ValentinkaMS [17]

Answer:

( - 41) + ( - 40) \\  - 41 - 40 \\ 81

Step-by-step explanation:

I hope I helped you! :)

4 0
2 years ago
-0.75 7/8 and - 5/8 in order from least to greatest
VMariaS [17]
Hello there!

The answer is:
-5/8
-0.75
7/8
5 0
3 years ago
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