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Marina86 [1]
3 years ago
5

HELP!!!!!!

Mathematics
2 answers:
maria [59]3 years ago
6 0
However many X's are on the speed, that's how many cars had that speed. For example on the chart, 29 has one X above it; therefore, there was one car that had the speed 29 mph. :)
aliina [53]3 years ago
6 0
31 had 0
32 had 0
33 had 2
34 had 4
35 had 5 
36 had 3
37 had 0
38 had 2
39 had 2
40 had 1
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A cylinder has a radius of 8cm and a height of 14cm what is the volume of the cylinder
Naddik [55]

Answer:

the answer is 201.06

Step-by-step explanation:

7 0
3 years ago
Have do you solve -4-1
ad-work [718]

Answer:

-5

Step-by-step explanation:

add them together (-4)+(-1) make a t chart it'll help you out

7 0
4 years ago
Read 2 more answers
Find the horizontal and vertical intercepts for
allsm [11]

Here, we are required to find the vertical and horizontal intercepts for r⁴ + s² − r s = 16.

The vertical and horizontal intercepts are s = ±4 and r = ±2 respectively.

According to the question;

  • the r-axis is the horizontal axis.
  • the s-axis is the vertical axis.

Therefore, to get the horizontal intercepts, r we set the vertical axis, s to zero(0).

  • i.e s = 0
  • the equation r⁴ + s² − r s = 16, then becomes;
  • r⁴ = 16
  • Therefore, r = ±2.

Also, to to get the vertical intercepts, s we set the horizontal axis, r to zero(0).

  • i.e r = 0.
  • the equation r⁴ + s² − r s = 16, then becomes;
  • s² = 16.
  • Therefore, s = ±4.

Therefore, the vertical and horizontal intercepts are s = ±4 and r = ±2 respectively.

Read more:

brainly.com/question/18466425

3 0
3 years ago
You need to drive to a game that is 250 miles away. You have 4.5 hours to get there. Which choice is closest to the minimum aver
Gala2k [10]
250 miles ÷ 4.5 hours = 56 mph (rounded from 55.55555)
6 0
3 years ago
A university is applying classification methods in order to identify alumni who may be interested in donating money. The univers
HACTEHA [7]

The accuracy in the research done by university is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Given sample size of 58205 and proportion of people donated 576. Cutoff is 0.5.

Probability is the chance of happening an event among all the events possible. It lies between 0 and 1.

TP=total people donated in sample, TN=total number of people,FP=donation,FN=No donation

Accuracy is calculated as under:

=(TP+TN)/(TP+TN+FP+FN)

=(268+23439)/(238+23439+5375+20)

=23707/29102

=0.81

Accuracy=0.81

Sensitivity is calculated as under:

=TP/(TP+FN)

=268/(268+20)

=268/288

=0.93

Precision is calculated as under:

=TP/(TP+FP)

=268/(268+5375)

=268/5643

=0.047

Their values are the probabilities in itself.

Hence accuracy is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Learn more about probability at brainly.com/question/24756209

#SPJ4

7 0
2 years ago
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