All categories

3 years ago

Solving Inequalities, HELP PLEASE.!!

Mathematics

2 answers:

nignag [31]3 years ago

3 0

Answer:

Group 1. x>-2

Group 2.x≥-2

Group 3.x<-2

Group 4.x≤-2

Lorico [155]3 years ago

3 0

The answers are going to be group 1 x>-2
Group 2.x>-2 group 3.x<-2 group 4.x_<-2

You might be interested in

Miss groves has trays of paint for students In her art class each tray has 5 colors one of the colors is purple what fraction of

Simora [160]

Answer:

1/5

Step-by-step explanation:

If each tray has 1 purple in 5 colors, it doesn't matter how many trays there are. The fraction of colors that is purple is 1/5.

4 0

3 years ago

100 points, I need help fast!

ivolga24 [154]

a. The standard error is equal to the standard deviation divided by the square root of the sample size:

SE = (23 ppm)/√18 ≈ 5.42 ppm

b. The t statistic is given by the difference between the true and sample means, divided by the standard error:

t = (192 ppm - 180 ppm)/SE ≈ 2.21

c. The p-value is approximately 0.0204.

d. Since p < 0.05, the difference is significantly different, so we reject the null hypothesis.

e. A type I error might have occurred, since it's possible that the null hypothesis was true, but we ended up rejecting it.

4 0

2 years ago

A juggler tosses a bowling pin in the air with an initial velocity of 18 ft per second. It leaves his hand when it is five feet

Natali5045456 [20]

Complete Question

A juggler tosses a bowling pin in the air with an initial velocity of 18 ft per second. It leaves his hand when it is five feet from the ground and he catches it when it is four feet from the ground,How long is the ball in the air?

Answer:

$t\approx 0.1s$

Step-by-step explanation:

From the question we are told that

Initial velocity $V_0= 18 ft/s$

Initial Height $h_1=5feet$

Final Height $h_2=4feet$

Generally the Newtons equation for motion is mathematically given by

$V^2 = U^2 + 2as$

Where

$s=h_2-h_1\\s=4-5\\s=-1ft$

And

$a=g=>9.81\\a=32.2ft/s^2$

Therefore

$V^2 = (18)^2 + 2(-32.2)(-1)$

$V^2 = 388.4$

$V =19.70786645\\V=19.71ft/s$

Generally the equation for Time is mathematically Given as

$t=\frac{V-U}{a}$

$t=\frac{19.71-18}{32.2}$

$t=0.05310559006$

$t\approx 0.1s$

Therefore the time spent on air by the ball is

$t=0.05310559006s$

4 0

3 years ago

Albert baked 5 dozen cookies he gave away 7\12 of them how much does he have left

vovikov84 [41]

I think the answer is 35 cookies

4 0

3 years ago

Read 2 more answers

What’s the perimeter lol

meriva

Answer:

try 47 im not sure tho ........

3 0

3 years ago