3 years ago

W=F(b+R), solve for b please

Mathematics

1 answer:

Radda [10]3 years ago

6 0

W/F = b+R
W/F - R = b

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Use any method to add or subtract (1 point) <br> 5/7 - (3/14 + 3/14)

Ray Of Light [21]

Answer:

5/7 - (3/14 + 3/14) = 2/7

See the steps of solution:

5/7 - (3/14 + 3/14) = Solve parenthesis first
5/7 - (3 + 3)/14 = Add fractions with same denominator
5/7 - 6/14 = Simplify
5/7 - 3/7 = Subtract fractions with same denominator
(5 - 3)/7 = Simplify
2/7 Answer

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2 years ago

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Given the equation y=-2x+12 the y-intercept is:

olchik [2.2K]

y = mx + b, where b is the y intercept.

D, or "12" is the answer.

Best of luck.

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3 years ago

What is the equation of the parabola in vertex form with vertex (2,-4) and directrix y=-6

Pachacha [2.7K]

Answer:

$y=\dfrac{1}{8}(x-2)^2-4$

Step-by-step explanation:

The directrix y=-6 is parallel to the x axes, so parabola has equation of the form

$(x-x_0)^2=2px(y-y_0),$

where $(x_0,y_0)$ is the vertex of parabola and p is parabola's parameter.

By the definition, $\frac{p}{2}$ is the distance from the vertex to the directrix, so

$\dfrac{p}{2}=2\Rightarrow p=4$

Hence, the equation of parabola is

$(x-2)^2=8(y+4)$

See attached diagram for the graph of parabola and its directrix.

In vertex form this equation is

$y=\dfrac{1}{8}(x-2)^2-4$

8 0

3 years ago

Zhane picked 28 cherries. 1/7 of them are bad. How many groups of cherries would she have to divide them into to find out how ma

castortr0y [4]

She would have 7 groups of cherries

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3 years ago

a rectangular laboratory has a length equal to one and a half times its width and a perimeter of 40m. find its length and width

tresset_1 [31]

L=1.5w
P=l+w
40=2.5 w
W=16
L=1.5(16) =24

Length is 24
Width is 16

8 0

2 years ago

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