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defon
3 years ago
5

-x^2+8x=7 quadratic formula

Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0

Answer:

x= 7,1

Step-by-step explanation:

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What is the mean, medium, mode of 54,220
irina [24]

Answer:

Mean: 16.75

Median: 15.5

Mode: 13

Range: 16

Minimum: 9

Maximum: 25

Count n: 16

Sum: 268

Step-by-step explanation:

hope this helps!

7 0
3 years ago
At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce
storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = \frac{1}{3}

v(0)=30

v(\frac{1}{3})=50

For MVT,

v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}

       =\frac{20}{\frac{1}{3} }

       =60 \ min/hour

5 0
3 years ago
AB. CD. EF are three chords of a circle, P and Q are two points inside the circle such that AB and CD meet at P, and AB and EF m
zysi [14]

Answer:

Step-by-step explanation:

I think it is option E) 7

3 0
1 year ago
What is the equation of the line that passes through the point (-9. 6) and is
hram777 [196]

Answer:

The perpendicular equation is y = -3x -21

Step-by-step explanation:

Perpendicular lines have the exact opposite slope as the other equation and they never have the same y-intercept.

To find the perpendicular slope just look at the slope in the original equation and get the exact opposite.

First let's simplify the equation.

-5 + x = 3y (divide by 3 on both sides to get y by itself)

-5/3 + 1/3x = y or y = 1/3x + 5/3

The exact opposite of this slope would be -3.

Now plug in the point you were given so that we can find the y-intercept.

6 = -3(-9) + b   (b = y-intercept)

6 = 27 + b (subtract 27 on both sides)

-21 = b

So the perpendicular equation looks like this.

y = -3x -21

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3 years ago
Are you subscribed to technoblade? serious question.
Llana [10]

Answer:

NOPE

Step-by-step explanation:

3 0
3 years ago
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