Ask question

Ask question

All categories

4 years ago

14

At the end of the year a car is worth 5% less than what it was worth at the beginning of the year. If a car was worth $9 500 in

December 2016, then its value in January 2016 was

2 answers:

motikmotik4 years ago

6 0

Answer:

that is the correct solution to the question

Pepsi [2]4 years ago

3 0

The answer should be 9025

You might be interested in

Please help I don’t understand

Sauron [17]

Answer:

-1.96312>-2.2360

Step-by-step explanation:

first find - $\sqrt{5}\\$

which is -2.2360679775

now round it to match the lenth of the other problem

-1.96312...

-2.2360...

now remember that the bigger the negitive number, the smaller it really is,

so

-1.96312>-2.2360

7 0

2 years ago

Read 2 more answers

Which relationship describes angles 1 and 2?

MissTica

<span>1) supplementary angles => sum of angles' measure is 180°

Two lines intersecting creating four angles with the left obtuse angle labeled one and the acute angle to the right labeled two

= > angle 1 + angle 2 = 180°

Then those two match.

2) complementary angles => sum of the two angles = 90°

Two lines intersecting in a right angle with a square indicating a right angle in quadrant one and a ray splitting quadrant two with a two labeling the left angle and one labeling the angle on the right

=> angle 2 + angle 1 = 90°

Then those two match

3) vertical angles

Two parallel horizontal lines intersected by a vertical line with a square indicating a right angle in quadrant one of the top line and a one labeling the angle in quadrant two and two labeling quadrant four of the top line

Those two matches because the angle label 1 and the angle label 2 are vertical angles as per the definittion.

4) adjacent angles

Two lines intersecting in a V shape with the left angle of one hundred fifty seven degrees and a bottom angle of X degrees

Those two match becasue the angle of 157° and the angle of X° are adjacent.
</span>

5 0

3 years ago

Read 2 more answers

The current in a simple electrical circuit is inversely proportional to the resistance. The current is 80 amps when the resistan

Oksana_A [137]

I = / r where I = current and r = resistance

80 = k / 50 so
k = 400

so we have I = 400/r

when r = 40
I = 400/40 = 10 amps

6 0

3 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

I am Lyosha [343]

Answer:

(a) The proportion of tenth graders reading at or below the eighth grade level is 0.1673.

(b) The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.198, 0.260).

Step-by-step explanation:

Let <em>X</em> = number of students who read above the eighth grade level.

(a)

A sample of <em>n</em> = 269 students are selected. Of these 269 students, <em>X</em> = 224 students who can read above the eighth grade level.

Compute the proportion of students who can read above the eighth grade level as follows:

$\hat p=\frac{X}{n}=\frac{224}{269}=0.8327$

The proportion of students who can read above the eighth grade level is 0.8327.

Compute the proportion of tenth graders reading at or below the eighth grade level as follows:

$1-\hat p=1-0.8327$

$=0.1673$

Thus, the proportion of tenth graders reading at or below the eighth grade level is 0.1673.

(b)

the information provided is:

<em>n</em> = 709

<em>X</em> = 546

Compute the sample proportion of tenth graders reading at or below the eighth grade level as follows:

$\hat q=1-\hat p$

$=1-\frac{X}{n}$

$=1-\frac{546}{709}$

$=0.2299\\\approx 0.229$

The critical value of <em>z</em> for 95% confidence interval is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the 95% confidence interval for the population proportion as follows:

$CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$=0.229\pm 1.96\times \sqrt{\frac{0.229(1-0.229)}{709}}\\=0.229\pm 0.03136\\=(0.19764, 0.26036)\\\approx (0.198, 0.260)$

Thus, the 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.198, 0.260).

5 0

3 years ago

Part of the American romantic transcendental belief system included a turning away from the negative effects of industrializatio

Leno4ka [110]

Answer:

<h2><u>Nature</u></h2>

Step-by-step explanation:

acellus

3 0

2 years ago