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Dvinal [7]
2 years ago
5

PLEASE HELP ON A TIMER!!!!!!

Mathematics
2 answers:
stiks02 [169]2 years ago
7 0

Answer:

(4,-1)

Step-by-step explanation:

Hopfully this helps you out!!

vichka [17]2 years ago
3 0

Answer: A

Step-by-step explanation:(4,-1)

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Negative three over eight ÷ five over nine
vesna_86 [32]

Answer:

-27/40

Step-by-step explanation:

5 0
3 years ago
. Find the range of the data.<br><br> 7,4, 12, 1, 8, 8, 4, 14, 13, 9, 11, 10, 2,7,5, 3, 1, 8,5,3
Burka [1]

Answer:

Range: 13

Step-by-step explanation:

Population size:20

Lowest value: 1

Highest value: 14

Answer: 13

<em><u>Hope this helps.</u></em>

5 0
3 years ago
Solve for the value of p.<br> (6p-2)<br> न<br> (3p-7)|
Westkost [7]

Answer:

The sum of angles on a straight line is 180 degrees.

Therefore,

(6p-2)+(3p-7)=180

6p-2+3p-7=180

9p-9=180

9p=189

p=21

7 0
2 years ago
A 35-foot tall pole is leading towards a building. To stop the pole from leaning further, a 48-foot long cable is secured from t
anygoal [31]

9514 1404 393

Answer:

  38.5°

Step-by-step explanation:

A triangle solver can give an answer easily. The angle is 38.5°.

__

The law of cosines can be written to solve for an unknown angle C opposite side 'c' and flanked by sides 'a' and 'b'.

  C = arccos((a² +b² -c²)/(2ab))

Here, we have a=35, b=48, c=30, so the angle is ...

  C = arccos((35² +48² -30²)/(2·35·48)) = arccos(2629/3360) ≈ 38.515°

The angle the cable makes with the pole is about 38.5°.

6 0
3 years ago
What is normal, when it comes to people's body temperature? a random sample of 130 human body temperatures, provided by allen sh
nikitadnepr [17]
The two-sided alternative hypothesis is appropriate in this case, the reason being we are asked "does the data indicate that the average body temperature for healthy humans is different from 98.6◦........?".
The test statistic is:
Z= \frac{\bar{X}-\mu}{ \frac{s}{ \sqrt{n} } }} =-5.47
Using an inverse normal table, and halving \alpha for a two-tailed test, we look up p=0.5-\alpha/2=0.5-0.005=0.495 and find the critical value to be Z = 2.5758.
Comparing the test statistic Z = -5.47 with the rejection region Z < -2.5758 and Z > 2.5758. we find the test statistic lies in the rejection region. Therefore the evidence does not indicate that the average body temperature for healthy humans is different from 98.6◦.
 
7 0
3 years ago
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