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irinina [24]
3 years ago
14

How to solve the equation: -2(-3x-4)=14​

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

1

Step-by-step explanation:

-2(-3x-4)=14

6x + 8 = 14

6x= 14-8

6x=6

x=1

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Help please if you know this
Oksana_A [137]

Answer:

The awnser is 11

Step-by-step explanation:

I know this is the right answer trust me.

7 0
3 years ago
5 ( 9 + d ) when d = 3
Damm [24]

Answer:

60

Step-by-step explanation:

5 ( 9 + d )

Let d=3 and substitute it in

5(9+3)

According to PEMDAS, we do what is in the parentheses first

5(12)

Now we multiply.

60

6 0
3 years ago
Read 2 more answers
Please hurry, 15 points and it's overdue.
valina [46]

Answer:

The relationship is positive.

The model predicts a score of 60.

Not sure what part b is.

Step-by-step explanation:

Since while the money spent on advertising increases while the items sold increases, we have a positive relation between both variables.

By looking at where 30 is on the graph, we can see it lines up with 60,the middle between $40 and $80 on the y axis and so we know this is the cost associated with this value.

4 0
3 years ago
(21gh^4)(6g^6h^2)(3g^2h^6) find the greatest common factor of the monomials
mezya [45]
The answer is
3g {h}^{2}
To find greatest common factor, look at the variables: g, h

Look at their coefficients and exponents:
21g \: \:  \:  6 {g}^{6}  \:  \:  \: 3 {g}^{2}  \\  {h}^{4}  \:  \:  \:  {h}^{2}  \:  \:  \:  {h}^{6}
Find the two groups' GCF:
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6 0
3 years ago
A rectangle is 6yards longer than it is wide. Find the dimensions of the rectangle if it’s area is 187 square yards
emmasim [6.3K]

Answer:

Width = 11 yards

Length = 17 yards

Step-by-step explanation:

First of all, the length of the rectangle is 6 yards longer than the width, this means, length = width + 6 yards. This dimensions can be represented on figure 1, where <em>w</em> is width, and <em>l</em>, for length.

We know the area of a rectangle is A = width x length

For our case 187 = w . (w + 6)

Using the Distributive Property for the multiplication we obtain

187 = w^{2} +6w

w^{2} +6w-187 =0,

Using the quadratic formula w=\frac{-b\±\sqrt{b^{2}-4ac } }{2a} where a = 1, b = 6, c = - 187 and replacing into the formula, we will have:

w=\frac{-6\±\sqrt{6^2-4(1)(-187)} }{2(1)}

w=\frac{-6\±\sqrt{36+748} }{2}=\frac{-6\±\sqrt{784} }{2}=\frac{-6\±28}{2}

We have two options: w=\frac{-6+28}{2}=\frac{22}{2}=11  yards

Or

w=\frac{-6-28}{2}=\frac{-34}{2}=-17 yards But a distance (width) can not be negative so, this answer for w must be discarded.

The answer must be width = 11 yards.

To find the length l =\frac{187}{11}=17 yards

6 0
3 years ago
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