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3 years ago

What is the value of b in the equation below?

Mathematics

1 answer:

grin007 [14]3 years ago

6 0

Answer:

I think it is -10

Step-by-step explanation:

Using a^m*a^n=a^(m+n)

b=(m+n)

In this question,

m= -8 and n= -2

so b= (m+n)=(-8+-2) = -10

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what is the equation of the line that passes through (-9,12) and is perpendicular to the line whose equation is y=1/3x+6

BabaBlast [244]

Y=kx+b
line is perpendicular y=1/3x+6⇒ k=- $\frac{1}{ \frac{1}{3} }$ =-3

so line y=-3x+a
this line that passes through (-9,12)⇔x=-9, y=12, so 12=-3(-9)+a
12=27+a
a=12-27
a=-15
y=-3x-15

P.s.picture to test solutions in the application

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3 years ago

Read 2 more answers

10. Find the slope and y-intercept of the line. y = 7/5x - 3

myrzilka [38]

Answer:

slope = 7/5

y-int = -3

Step-by-step explanation:

this equation is in slope-intercept form. in thsi form, the slope will always be the coefficient of x, and the y-intercept will always be the last constant, or the "b" term (dont forget to include the negative!)

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3 years ago

A rectangle an area of 52 square feet .the length is 9 feet longer than the width. What equation could use to represent this ?

TEA [102]

Answer:

idk

Step-by-step explanation:

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3 years ago

Whats the answer to 26.02 x 2.006

finlep [7]

Answer:

52.19612

Step-by-step explanation:

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4 years ago

Sunhee had four plastic shapes a square, a circle, and a pentagon in how many ways can she line up the four shapes of the circle

julsineya [31]

Answer:

only three shapes are mentioned.

But anyhow, 4 shapes allow the following reasoning...

you can start lining up with any of the for shapes, so you have 4 possibilities, for the second position you have 3 possibilities, for the third 2 and for the last only 1.

so 4*3*2*1= 24 possible ways

but with the added rule to keep the circle and the square apart, we have to reduce the number.

by the same step-by-step reasoning we get

4 possibilities for the 1st item

only 2 possibilities for the 2nd item

(if 1st is square or circle, the other one's not an option, if it's not we have to choose one of them to not place them both at point 3 and 4)

only 1 choice for the 3rd item

(reasoning as above, if 2nd is square or circle, we have to the only other, if it isn't, we can put it here at 3rd position)

plus scenarios where either square or circle are on 1st point, the other's on 4th.

I guess that makes 14 possible arrangements

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3 years ago