Mathematics High School

the answer isn't 8-2root3 btw

Answers

Answer 1

Answer:

1.41226231144

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

16cos(30)-20sin(60) -8sin(90)

look at the pattern of the numerators Millie, you can remember all of the sin and cos functions at the special angles now. :)

sin(0) = 0 / 2

sin(30) = 1 / 2

sin(45) = [tex]\sqrt{2}[/tex] / 2

sin(60) = [tex]\sqrt{3}[/tex] / 2

sin(90) = [tex]\sqrt{4}[/tex] / 2 aka 1

now the numerators just count up from 90°

cos(90) = 0 / 2

cos(60) = 1 / 2

cos(45) = [tex]\sqrt{2}[/tex] / 2

cos(30) = [tex]\sqrt{3}[/tex] / 2

cos(0) = [tex]\sqrt{4}[/tex] / 2 aka 1

see the pattern.. it's pretty easy to memorize, knowing that :)

now let's use the above to plug into the given equation

16* [tex]\sqrt{3}[/tex] / 2 - 20* [tex]\sqrt{3}[/tex] / 2- 8*[tex]\sqrt{4}[/tex] / 2

8* [tex]\sqrt{3}[/tex] - 10 [tex]\sqrt{3}[/tex] -8

-2*[tex]\sqrt{3}[/tex] - 8

this isn't quite the same answer as you got before.. I feel like it's right

Related Questions

Which inequality is a true statement?
Select each correct answer.
-5 = -7
ロ-5<-7
-5 > -7
0-5 > -7
-5 < -7

Answers

Answer:

-5 > -7 and 0-5>-7 are both true statements the rest aren't.

Step-by-step explanation:

Zander read 13 3/4pages in 1/4 of an hour. Sydney read 43 1/3 pages in 2/3 of an hour. At these rates, would Zander or Sydney read more pages in 1 hour?

Answers

Answer:

At these rates Sydney read 10 pages per hour more than Zander.

Step-by-step explanation:

Zander read [tex]13\frac{3}{4}[/tex] pages in [tex]\frac{1}{4}[/tex] of an hour.

Therefore, pages read by Zander in 1 hour = [tex]\frac{\text{Total pages read}}{\text{Total time taken}}[/tex]

= [tex]\frac{13\frac{3}{4}}{\frac{1}{4}}[/tex]

= [tex]\frac{55}{4}\times \frac{4}{1}[/tex]

= 55 pages per hour

Sydney read [tex]43\frac{1}{3}[/tex] pages in [tex]\frac{2}{3}[/tex] of an hours.

Pages read by Sydney in 1 hour = [tex]\frac{43\frac{1}{3}}{\frac{2}{3} }[/tex]

= [tex]\frac{130}{3}\times \frac{3}{2}[/tex]

= 65 pages per hour

Therefore, number of pages read more by Sydney as compared to Zander,

= 65 - 55

= 10 pages per hour

At these rates Sydney read 10 pages per hour more than Zander.

Mariah is replacing the water heater in her home and is considering three different models. One of the things she is comparing is
the volume of the cylindrical storage tank in each water heater. The dimensions of the storage tanks, in inches, are as follows.
• Water Heater X: r= 8.5 and h = 48
• Water Heater Y: r= 9.5 and h = 44
• Water Heater Z: r= 10.5 and h = 32
Which statement is true?
OA. Water heater Y has the storage tank with the greatest volume.
B. Water heater X has the storage tank with the greatest volume.
OC
The storage tanks in all three water heaters have the same volume.
OD
Water heater Z has the storage tank with the greatest volume.

Answers

Answer:

Step-by-step explanation:

The volume of a Cylinder is [tex]\pi \\[/tex]*r^2 * h

In this problem I will use 3.14 as pi because it is easier to type

Water Tank X: 8.5*8.5*3.14*48=10,889.52

Water Tank Y: 9.5*9.5 *3.14*44=12,469.94

Water Tank Z: 10.5*10.5*3.14*32=11,077.92

Hope this helps!!

I also think it is c .4

Help me with this please!!! Will make Brainliest

Answers

Answer:

Yes

Step-by-step explanation:

UW distance = 2 spaces

VX distance = 2 spaces

Answer:

Yes

Step-by-step explanation:

They have the same length/distance. The length/distance is 2.

I hope this helps!

simplify 3^5 divided 3^3

Answers

Answer:

3^2 or 9

Step-by-step explanation:

When dividing exponents with the same base, we subtract the exponents

3^5 ÷ 3^3

3^ (5-3)

3^2

how much force is needed to accelerate a 66kg skier at 2m/second

Answers

Answer:

[tex]\huge\boxed{\sf F = 132\ N}[/tex]

Step-by-step explanation:

Given Data:

Mass = m = 66 kg

Acceleration = a = 2 m/s²

Required:

Force = F = ?

Formula:

F = ma

Solution:

F = (66)(2)

F = 132 N

[tex]\rule[225]{225}{2}[/tex]

Answer:

[tex] {y}^{2} - 9 = 0[/tex]

Step-by-step explanation:

as both 3 and - 3 are possible values of y;

[tex]y = 3 \: or \: y = - 3[/tex]

[tex]y - 3 = 0 \: or \: y + 3 = 0[/tex]

therefore;

[tex](y - 3)(y + 3) = 0[/tex]

by expanding;

[tex] {y}^{2} - {3}^{2} = 0[/tex]

[tex] {y }^{2} - 9 = 0[/tex]

The circumference of a circle is 6.4mm.
Find the length of the diameter.
Give your answer rounded to 3 SF.

Answers

Answer: 2.04

Step-by-step explanation:

Justine correctly multipled the decials shown. How can the product be correct without three decial places 8.5 x 2.34 = 19.89

Answers

Answer:

The answer is "19.89".

Step-by-step explanation:

Given:

[tex]\to 8.5 \times 2.34[/tex]

Solution:

[tex]8.5 \times 2.34 \\-----\\[/tex]

[tex]340 \\[/tex]

[tex]255 \times[/tex]

[tex]\\ 17 0\times \times[/tex]

[tex]-------\\[/tex]

[tex]19.890[/tex]

[tex]\to 19.890 \approx 19.89[/tex]

that's why the answer is correct.

A circular lollipop has a radius of 1.5 inches. What is the area of the lollipop to the nearest hundredth of a square inch?

1. 4.71
2. 7.07
3. 9.42
4. 28.26

Answers

Answer:

7.07

Step-by-step explanation:

i took this test lol

Help me please :)l. A

Answers

∠JML = 76°

Step-by-step explanation:

since it is a kite, ∠1 = 38°

∠JML = 2(38°) = 76°

please stop ignoring me): I need help with geometry): !!!! Will give brainliest to both correct answers! Have a nice day thank you

Answers

Answer:

The top answer is LMP = LOP by SSS

The bottom answer is line CB = line FE

K(-1)=
Hello I need some help

Answers

Answer:

Step-by-step explanation:

Look at where x=-1 and then look at the y-coordinate for that point. That is your answer

The answer is 7. Where -1 is there’s 7

(Look at the picture, please.)

Answers

Answer:

the answer is D : 1/2 :))))))

That answer would be D- 1/2

Compare the rules of two games.
Game A: Two six-sided dice are thrown. The numbers on the dice determine which player gets a point.
Player 1 gets a point if the product of the numbers on the dice is even. Player 2 gets a point if the
product is odd.
Game B: Two six-sided dice are thrown. The numbers on the dice determine which player gets a point.
Player 1 gets a point if the sum of the numbers on the dice is even. Player 2 gets a point if the sum is
odd.
Which statement accurately describes whether these games are fair?

Answers

Answer: neither Game A nor Game B is fair

Step-by-step explanation:

Answer:

Game A is not fair, and game B is fair.

Step-by-step explanation:

i took the iready tesyt

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