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3 years ago

Please help me! I can’t find the right equation. Thank you!!

Mathematics

1 answer:

777dan777 [17]3 years ago

3 0

Y=mx+c where m is the gradient.
If the equation is perpendicular is - $\frac{3}{4}$

Use y-y1=m(x-x1)
and you should get
y+1=- $\frac{3}{4}$ (x+4)
4y+4=-3x-12
y=- $\frac{3}{4}$ x - 16

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A salesman kept track of the gas mileage for his car over a 25-week span. The mileages (miles per gallon rounded to the nearest

DanielleElmas [232]

Step-by-step explanation:

23, 27, 27, 28, 25, 26, 25, 29, 26, 27, 24, 26, 26, 24, 27, 25, 28, 25, 26, 25, 29, 26, 27, 24, 26

Arranging in ascending order;

23, 24, 24, 24, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 28, 28, 29, 29

Mean = Sum of mileage / Number of millage

Number of mileage = 25

Sum of mileage = 651

Mean = 651 / 25 = 26.04

Median = Middle Number (13th number) = 26

Mode (Highest occurring) = 26 (7 times)

4 0

3 years ago

I NEED THIS IMMEDIATELY!!

wariber [46]

Answer:

sloths 2:6 meerkats

simplified

sloths 1:3 meerkats

1 s = 3 m

2 s = 6 m

42/3 = 14

14 s = 42 m

16 X 3 = 48

16 s = 48 m

72/3 = 24

24 s = 72 m

m = s X 3

s= m/3

4 0

3 years ago

Read 2 more answers

Factor the expression below -r -8

miv72 [106K]

Answer:

-(r+8)

Step-by-step explanation:

4 0

3 years ago

What is angle y and why ?? when b is 90

lesya692 [45]

You have to sit calmly and quietly and look over this one for a few minutes,
until you see what's going on.

When the top triangle got flopped over to make the bottom one,
the 12-cm side on top made another 12-cm side on the bottom.

Also, the short 6-cm piece made another 6-cm piece hooked onto it,
and when those are put together, they make 12-cm all together.

So now, look at the whole outside triangle that you have, after the two
inside ones are put together. The top slanty side is 12-cm, the bottom
slanty side is 12-cm, and the straight up-and-down side is also 12-cm.
The new big triangle is an equilateral triangle !

What do you know about an equilateral triangle ?

-- All three sides are the same length.
-- All three angles are the same size.

If all three angles are the same size, how big is each one ?

Hint: The three angles of every triangle add up to 180 degrees.

So angle-y must be 1/3 of 180 = 60 degrees.

3 0

3 years ago

What is the simplest form of 3x^3 + x^2 + 2 ( x^3 - 4x^2 )

viva [34]

Answer:

−8x^4 + 5x^3 + x^2

Step-by-step explanation:

3x^3 + x^2 + 2 (x^3 − 4x^4)

Apply the distributive property.

3x^3 + x^2 + 2x^3 + 2 (−4x^4)

Multiply −4 by 2.

3x^3 + x^2 + 2x^3 − 8x^4

Simplify by adding terms.

Add 3x^3 and 2x^3.

5x^3 + x^2 − 8x^4

Simplify the expression.

Move x2.

5x^3 − 8x^4 + x^2

Reorder 5x^3 and −8x^4.

−8x^4 + 5x^3 + x^2

4 0

3 years ago