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3 years ago

Simplify the expression 7y+6-1+12y

Mathematics

2 answers:

Olegator [25]3 years ago

5 0

Answer:

19y+5

Step-by-step explanation:

Katena32 [7]3 years ago

3 0

Answer: 5+5y

Step-by-step explanation:

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Solve [(x+7) x 3-5] / 4 = 7<br> What is the first step in this equation

Nitella [24]

Answer:

The first step is to slove the numbers in the brackets

Step-by-step explanation:

[(x+7) x -2] / 4 = 7

-2(x+7) / 4 = 7

-2x-14 / 4 = 7

-2x-14 = 28

-2x = 42

x = -21

PEMDAS

3 0

3 years ago

What is a conjunction and disjunction

RideAnS [48]

When two statements are combined with an ‘and’, you have a conjunctions. For conjunctions, both statements must be true for the compound statement to be true. When your two statements are combined with an ‘or’, you have a disjunction.

8 0

3 years ago

The graph shows the function f(x).

elena-14-01-66 [18.8K]

Answer:

a) -3.5

Step-by-step explanation:

The average rate of change of a function f(x) from x=a to x=b is given by:

$\frac{f(b) - f(a)}{b - a}$ We want to find the average rate of change of change of the given function from x=1 to x=4.

From the graph,

$f(4) \approx \: - 3.8$

$f(1) = 3$

The average rate of change is:

$\frac{ - 3.8 - 3}{4 - 1} = \frac{ - 6.8}{2} = - 3.4$

a) is closest

3 0

3 years ago

Read 2 more answers

Help me with this please

rusak2 [61]

So i have two answers this is Completing the Square:

(x+6)^2-36

and this is finding the perfect square trinomial:

x^2+12x+36

Hope this helps

4 0

3 years ago

Danielle construct a scale model of a building with a rectangular base her model is 2 inches in length and 1 inch in width the s

Kitty [74]

Given:

a.) The scale of the model is 1 in equals 47 ft.

b.) Danielle constructs a scale model of a building with a rectangular base her model is 2 inches in length and 1 inch in width.

To be able to determine the actual area of the base, let's first identify the actual dimensions of the base.

We get,

$\text{Length: 2 (inches) x }\frac{47\text{ ft.}}{1\text{ (inch)}}\text{ = 2 x }\frac{47\text{ ft.}}{1}\text{ = 94 ft.}$ $\text{Width: 1 (inch) x }\frac{47\text{ ft.}}{1\text{ (inch)}}\text{ = 1 x }\frac{47\text{ ft.}}{1}\text{ = 47 ft.}$

Let's now solve for the area of the base, since it is a rectangle, we will be using the formula below:

$\text{ Area = L x W ; where L = Length and W = Width}$

We get,

$\text{ Area = L x W}$ $\text{ = 94 ft. x 47 ft.}$ $\text{ Area = 4,418 ft.}^2$

Therefore, the actual area of the base is 4,418 ft.².

7 0

1 year ago