If 3x-8=-2,find the value of x-6

On a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are i

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

given that on a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are incorrect

By mere guessing probability for choosing correct answer = p = 0.2

also each question is independent of the other

Hence if X is the number of correct questions then

X is binomial with p = 0.2 and n = 6

a) being correct on three questions,

= $P(X=3) = 0.08192$

(b) being correct on four questions,

= $P(X=4) = 0.01536$

(c) being correct on all six questions

= $P(x=6) = 0.000064$

8 0

3 years ago

A firecracker shoots up from a hill 160 feet high, with an initial speed of 90 feet per second. Using the formula H(t) = −16t2 +

Masja [62]

When the firecracker hits the ground, H(t) = 0.0 = -16t^2 + 90t + 160 Using the quadratic formula,t = (-90 +- sqrt(90^2 - 4(-16)(160))) / 2(-16)t = -1.42 ort = 7.04

The negative time is extraneous. Therefore,t = 7.04 s.

Seven Seconds is your answer!

3 0

3 years ago

Read 2 more answers

For the linear equation y=-10+5x the x intercept is ?

svet-max [94.6K]

Answer:

(2, 0)

Step-by-step explanation:

X intercept is when y = 0.

0 = -10 + 5x

5x = 10

x = 2

6 0

3 years ago

What is the factor of 4x subtracted from 28 ?

jolli1 [7]

Answer:

I think its (2x+4)(2x+7)

4 0

3 years ago

What is the measure of angle FAB

antiseptic1488 [7]

It's an angle. That should work because it's obvious. Hope it helped.

7 0

3 years ago