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iragen [17]
3 years ago
13

(w+14)/(4w+6)=(3)/(4) show work plz

Mathematics
1 answer:
sergey [27]3 years ago
7 0

Answer:

w = -1.44 and w = -14.06

Step-by-step explanation:

That "(3) / (4)" in  (w+14)/(4w+6)=(3)/(4) looks fishy.  Assuming that you really meant 3/4, then we have   (w+14)/(4w+6)=3/4.

Mult. both sides by 4 to remove the fraction:  4(w+14)/(4w+6) = 3.

Multiply out (w+14)/(4w+6):  4w^2 + 6w + 56w + 84.  Combine the w terms, obtaining 4w^2 + 62w + 84.  Then the original equation becomes:

4w^2 + 62w + 84 = 3, or  4w^2 + 62w + 81 = 0.

This is a quadratic equation, with a = 4, b = 62 and c = 81.  The two roots (values of

w) are as follows:

        -62 plus or minus √(62^2-4(4)(81)

   ----------------------------------------------------------

                               8

         -62 plus or minus √(2548)           -62 plus or minus 50.48

w = -------------------------------------------   =  ---------------------------------------

                            8                                                  8

Simplifying, we get w = -1.44 and w = -14.06

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Planes X and Y and points C, D, E, and F are shown.
viva [34]

Answer:

The answer is below

Step-by-step explanation:

The planes are shown in the image below.

From the image, points D and E are on plane Y, while point F is on plane X.

A) The line that can be drawn through points C and D is  contained in plane Y.

This statement is wrong because point C is not in plane Y

B) The line that can be drawn through points D and E is  contained in plane Y.

Correct. Since both points D and E are on plane Y, hence The line that can be drawn through points D and E is  contained in plane Y.

C) The only point that can lie in plane X is point F.

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5 0
2 years ago
4.13 rounded to one decimal point
arlik [135]
The answer is 4.1
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8 0
3 years ago
Read 2 more answers
W(x)=-5(x-8)(x+4) what is the maximum height that the stone will reach?
Ganezh [65]

Answer:

the maximum height is 180 or y=180

Step-by-step explanation:

6 0
3 years ago
The standard IQ test has a mean of 97 and a standard deviation of 17. We want to be
densk [106]

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Variances add, so the standard deviations add in quadrature, like the Pythagorean Theorem in n dimensions.  This means the standard deviation of the average x is

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Answer: We need a sample size of 47 to be 95% certain of being within 5 points of the mean

6 0
3 years ago
What is the value of n in 7 + n/2 = 10
Goryan [66]
Hello!!

\frac{n}{2} + 7 = 10

n + 14 = 20

n = 6

Good luck :)
8 0
3 years ago
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