MATHEMATICS HIGH SCHOOL

Please help it’s due tmr!!!

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

we need to first find the area

4.5 x 4 = 18

1.5 x 2 = 3

18 - 3 = 15

15/2.25 = 20/3

20/3 is 6.666666666666666666666666666666.....

6+1 = 7

Answer 2

Answer:

Step-by-step explanation:

we need to first find the area

4.5 x 4 = 18

1.5 x 2 = 3

18 - 3 = 15

15/2.25 = 20/3

20/3 is 6.666666666666666666666666666666.....

6+1 = 7

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Answers

Answer:

the answer would be 4/6

Step-by-step explanation:

because u multipy 2 by 2 and 3 by 2, then get 4/6

Cosx-Cos2x=0
Solve. I'm not sure if I'm getting the right answers

Answers

$cos(2x)= 2cos^2(x)-1\n \n cos(x)-cos(2x)=0 \n cos(x)-(2cos^2(x)-1)=0 \n -2cos^2(x)+cos(x)+1=0 \n 2cos^2(x)-cos(x)-1=0 \n (2cosx+1)(cosx-1)=0 \n \n 2cos(x)+1=0 \n cos(x)= - (1)/(2) \n x= \pm arccos(- (1)/(2) )+2 \pi k~~~k\in Z \n arccos(- (1)/(2) )= (2 \pi )/(3) \n x=\pm (2 \pi )/(3)+2 \pi k~~~k\in Z \n \n$

$cos(x)-1=0 \n cos(x)=1 \n x= 2\pi k~~~k \in Z$

Name ScoreJulia 650
Andrew 550
Jason 380
Cathy 720
Jessica 710
Robert 550
The table gives the scores of 6 students from a class of 25 in a competitive exam. The point estimate of the mean score for the students is _____-
. (Round off your answer to the nearest tenth.)

Answers

Answer

593.3

Explanation

Mean is also called average. It represents the average mark of a given data.

For the question above, you to add all the marks of the students then you divide by the number of students.

Mean = (650+550+380+720+710+ 550)÷6

= 3,560 ÷ 6

=593.3333

Answer to the nearest tenth = 593.3

The point estimate of the meanscore for the students is 593.34 if the number of observation is 6.

What is mean?

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

We know,

Mean = (sum of observation)/(number of observation)

Sum of scores = 650+550+380+720+710+550 = 3560

Number of observation = 6

Mean = 3560/6 = 593.33 = 593.34

Thus, the point estimate of the meanscore for the students is 593.34 if the number of observation is 6.

Learn more about the mean here:

brainly.com/question/22871228

#SPJ5

Can someone help me plz

Answers

Answer:

9442 lb

Step-by-step explanation:

First find the volume of the tank. This being a sphere, the volume is V =(4/3)π·r³. Here the diameter is 17 ft, so the radius, r, is half that: 8.5 ft.

Then the volume of the sphere is V = (4/3)π·(8.5 ft)³, and half that (the volume of the hemisphere) is (2/3)π·72.25 ft³.

Water weighs 62.4 lb/ft³. To find the weight of the water in the full tank, multiply the tank volume by this weight density 62.4 lb/ft³:

(2/3)π·72.25 ft³ · 62.4 lb/ft³ ≈ 9442 lb

(38x+61y)-(3x-11y) simplify this expression

Answers

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▹ Answer

35x + 72y

▹ Step-by-Step Explanation

(38x + 61y) - (3x - 11y)

38x + 61y - (3x - 11y)

38x + 61 y - 3x + 11y

35x + 61y + 11y

35x + 72y

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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Four times a number, x, plus five times a number, y, equals 79. Ten times x minus 5 times y equals 5. Find the numbers by setting up a system of linear equations and solving the system using the elimination method.a) x = 7, y = 9
b) x = 6, y = 11
c) x = 8, y = 10
d) x = -10, y = 7

Answers

the correct answer is X=6 & Y=11

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