Mathematics Middle School

There are two triangles satisfying angle BCA = 60 degrees, AB = 9 and AC = 10 shown below:

The possible values of BC$ are a_1 and a_2, as shown in the picture, with a_1
What are a_1 and a_2?

Please don't round your answer. Keep it as a square root.

Answers

Answer 1

Answer:

Don't see the picture

Step-by-step explanation:

So far I'm getting that

(According to the law of cosines):

CAB ≈ 45.793°

ABC ≈ 74.207°

BC ≈ 7.449

Related Questions

Find 8% of 75. Show your work or explain how you arrived at your answer.
Please make the explanation simple

Answers

Answer:

6

Step-by-step explanation:

Let's make 8% into a fraction:

[tex]\frac{8}{100}[/tex]

Since, finding a fraction of a number is also the same as multiplying the fraction with the number, we have this equation:

[tex]\frac{8}{100}[/tex] of 75 =

[tex]\frac{8}{100}[/tex] x 75.

Equaling to the answer:

6

I tried to keep it as simple as possible.

8% of 75 is 6

Formula:

8÷100×75 which will give you 6 as the answer.

what is 4/5 of 32? i keep on getting different answers so please help

Answers

Answer:

25.6

Step-by-step explanation:

4/5 of 32 is equal to 25.6. To calculate this, we can multiply 4/5 by 32. 4/5 = 0.8, so 0.8 x 32 = 25.6.

Answer:

25.6

Step-by-step explanation:

help with this topic pls

Answers

The first one is = True
The second one is = False
The third one is = True
The fourth one is = True

————————————————————————————————————————————

This is because integers are negatives and positives whole numbers.

Rational numbers are numbers or decimals that repeat, or numbers/decimals that terminate/end.

Irrational numbers are numbers or decimals that doesn’t repeat and goes on and on forever. Irrational numbers could be Pi = 3.14159265….

Hopefully this helped. If you have any questions, please ask me! Have a great day!
true false true true

what is it? i don't get it

Answers

Answer:

The part of the whole was not converted to a decimal or fraction

Step-by-step explanation:

700 is not 35% of 20.

This can be concluded with the product not being calculated properly to calculate 35% of 20.

We first need to turn 35% (whole number) into a decimal of 0.35 to figure out the percentage.

so the actual calculation:
0.35x20

= 7

Correct the error:
ANS: 7 is 35% of 20.

Answer:

B; 7

Step-by-step explanation:

35% = 0.35 (decimal form)

Therefore: 0.35 x 20 = 7

SOMEBODY PLEASE HELLP MEE

Answers

Answer:

$34.74

Step-by-step explanation:

The discount price is 0.82 * 40 = $32.80

The sales tax adds an additional 1.94 leaving you with 34.74

Hope that helps.

The answer is 34.74
Because 40x0.82=32.8 for the discount and add 1.94 for the sales tax

Aakesh has two bags of marbles. the first bag contains 5 red, 6 blue, 4 green. the second bag contains 4 red marbles, 2 blue marbles, and 3 green marbles .what is the probability that Aakesh will select a red marble from each bag

Answers

Answer:

c 4/twenty-

Step-by-step explanation:

I say it's the best one

Answer:

2/9

Step-by-step explanation:

because 2 bags and 9 marbles

so if he can only select one marbles

its a 2/9 chance

trying to help a friend out with homework (again) can someone give an answer

Answers

Answer:

126cm³

Step-by-step explanation:

In order to find the volume of the cube, you must multiply all three units together. So we would multiply 7·6·3=42·3=126. Then since we multiplied 3 units together, our final answer is 126cm³  

Answer:

Hello!!! :)))

A=2(wl+hl+hw)=2·(3·6+7·6+7·3)=162

Answer: 162 cm2

Hint when finding the surface area it will be [tex]cm^{2}[/tex],  [tex]in^{2}[/tex] ,  [tex]ft^{2}[/tex] , etc.

In the diagram below, what are AC and BC?
Please don't round your answer (keep your answer as a square root) and solve with the Law of Sines/Cosines

Answers

Answer:

BC14.5 AC 11.3

Step-by-step explanation:

i need help on the true/false statement i dont get it

Answers

1st: False
2nd: False
3rd: True
4th: False

i need to answer part b. i really need help. this is due tomorrow pls. ☹️

Answers

step explanation: it helped me with a lot of assignments.

Answer:

28+x

Step-by-step explanation:

6+6=12

8+8=16

12+16= 28

A circle has an area of 144πcm². Calculate the circumference of the circle leaving your answer in terms of π

Answers

The circumference of the circle is 24π cm.

The area of a circle is given by the formula:

                                A = πr²

where A is the area of the circle and r is the radius.

In this problem, we know that the area of the circle is 144π cm^2. Substituting this value into the formula, we get:

                               144π = πr²

Dividing both sides by π, we get:

                               r² = 144

Taking the square root of both sides, we get:

                               r = 12

Therefore, the radius of the circle is 12 cm.

The circumference of a circle is given by the formula:

                               C = 2πr

Substituting the value of r, we get:

                               C = 2π(12)

Simplifying, we get:

                               C = 24π

Therefore, the circumference of the circle is 24π cm.

To learn more about the circumference of the circle,

https://brainly.com/question/20489969

Answer:

Therefore, the circumference of the circle is 24π cm.

Step-by-step explanation:

A circle's circumference is the distance around its outside.. It is similar to the perimeter of other shapes such as squares. Consider it to be the line that defines the shape.

The circle's circumference is 24 cm.

The area of a circle is:

                              A = πr²

where A denotes the circle's area and its radius.

In this problem, we know that the area of the circle is 144π [tex]cm^2.[/tex] Exchange this value into the formula, and we get.

       144π = πr²

Divide π by both sides, and we get:

        r² = 144

Take the square root on both sides, and we get:

          r = 12

The radius of the circle is 12cm.

The circumference of a circle is:

          C = 2πr

Exchange the value of r, we get:

           C = 2π(12)

Finally, we get:

             C = 24π

Therefore, the circumference of the circle is 24π cm.

To learn more about circumference of the circle,

https://brainly.com/question/28912364

To learn more about radius of the circle,

https://brainly.com/question/13449316

What conclusion can you draw from the organizational strategy that the author uses in the section “Royal Birth”?

A
The author wants to explain to the reader how the bicycles of today resulted from the Draisienne.

B
The author believes the best way to describe the Draisienne is to contrast it with modern bicycles.

C
The author assumes the reader is familiar with many bicycling terms and doesn’t need to define them.

D
The author classifies the ideas according to the categories “parts,” “components,” and “popularity.”

Answers

Answer:

Step-by-step explanation:

C :)

Find 250% of 18. Show your work or explain how you arrived at your answer.
Please keep the explanation simple

Answers

Answer: 45

100% of 18 = 18

50% of 18 = 9

18 + 18 = 36 = 200%

36 + 9 = 45 = 250%

:)

Answer: 45

Step-by-step explanation:

To find a percentage of a number, like what we're being asked to do, you multiply the number ( 18 in this case ) with the decimal form of the percentage. So, since we know 100% is equal to 1, 150% is equal to 1.5 and so on, 250% must be equal to 2.5. Since we know this, we now do:

2.5 x 18 = 45.

mathhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!!!

Answers

Answer:

Step-by-step explanation:

(51-8)/51 = 43:51

Answer: what he said

Step-by-step explanation:  XD

[tex]a) \frac{cups.of.flour}{cookie} \\b) cups\\c) \frac{cookies}{cups.of.flour} \\d) cookies\\e) cookies[/tex]

Answers

Answer:

A). 1/8

B). 5 cups

C). 8/1

D). 40 cookies

E). 0 cookies

Complementary events are two events in which either one or the other must happen, but they cannot happen at the same time.
The sum of the probability of an event and its complement is 1, or 100%.


( I dont even know why this is in the form for a math one)

Answers

Answer: Yes

Step-by-step explanation:

The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1.

Answer: h

Step-by-step explanation:

Angles
1-5
Please answer all questions and solve step by step and please try to show/explain with the least words as possible and use mostly numbers to for explain there can still be some words tho.

Answers

Answer:

most stuff you need to solve for adds to 180; answers on pictures

Step-by-step explanation:

Answer this please. x3+y3+z3=k

Answers

3xyz is the answer im pretty sure

help pls on this question pls

Answers

Answer:

Step-by-step explanation

volume formulae = π r² h

3.14 × 4² × 3

3.14 × 16 × 3

= 150.72 for 1 candle

150.72 × 130

= 19593.6

There are 86,400 frames of animation in 1 hour of anime.
How many frames are there per second?
There are 3,600 seconds in 1 hour.

I really need help on this.

Answers

Answer:

24 frames per second

Step-by-step explanation:

There are 24 frames per second in the anime because when you divide 86,400 by 3,600 you get 24.

Answer:

24

Step-by-step explanation:

Based on the given conditions, formulate: 86400/3600

Cross out the common factor:24

answer: 24

It's too short. Write at least 20 characters to get a great answer.
Don't use such phrases here, not cool! It hurts our feelings :(

Answers

Answer:

A and C

1st and 3rd equations

A and C first and 3rd equation

Which one is it? I just don't get this one

Answers

Answer:

30

Step-by-step explanation:

I believe the problem is worded to be a proportional equation:

[tex]\displaystyle \frac{21}{x}=\frac{7}{10}\\\\21*10=7x\\\\210=7x\\\\30=x[/tex]

I need points for this quiz sorry ina hurry

(quizz 7)

The Roxbury CC Tigers basketball team scored 12 points in the first 6 minutes of a game. If they continue at the same pace, how much will they score during the entire 40 minute game?

Answers

Answer:

80 points

Step-by-step explanation:

40/6= 6.6666666667

6.6666666667*12=80.0000000004

rounded 80

80pts bdjsjshhajagaa

You can read 52 pages per hour. You read for an hour and a half. How many pages have you read? Explain or show how you know

Answers

Answer:

78 pages

Step-by-step explanation:

You can read 52 pages per hour and therefore in half an hour you can read:

52/2 = 26 pages

For an hour and half you read:

52 + 26 = 78 pages
If you read for 52 pages an hour and you have read for an hour and a half you have read 78 pages.

1. 52 divided by 2 = 26 (this is how long you can read in a half an hour)
2. 52+26= 78 (this is how long you can read in an hour and a half)

I tried to explain as best as i could i hope this helps

HELP ASAP PLSSS

SMALL BOX Unit Rate
DOLLAR PER OUNCE?

_______


LARGE BOX Unit Rate
DOLLAR PER OUNCE?

_______


SMALL BOX Unit Rate

OUNCES PER DOLLAR?

_______


LARGE BOX Unit Rate
OUNCES PER DOLLAR?

_______


The SMALL BOX/LARGE BOX is a better buy because it costs MORE/LESS dollars per ounce.


The SMALL BOX/LARGE BOX is a better buy because you receive MORE/LESS ounces per dollar.

Answers

1) Small box is $0.38 per ounce

2) Large box is $0.41 per ounce

3) Small box is 2.63 ounce per dollar

4) Large box is 2.44 ounce per dollar

5) The SMALL BOX is a better buy because it costs LESS dollars per ounce

6) The LARGE BOX is a better buy because you receive MORE ounces per dollar

Hope this helped!

In triangle ABC, we have AB = 5, BC = 8, and AC = 7, as shown below:
Calculate: cos(angle A), cos(angle B), cos(angle C)
Please don't post any absurd answers, they will be reported

Answers

The angles are;

A = 60

B = 38

C = 82

What is the cosine rule?

The cosine rule is a mathematical formula used in trigonometry to determine the lengths of sides of a triangle, given the lengths of two sides and the measure of the angle between them. The cosine rule states that the square of the length of a side of a triangle is equal to the sum of the squares of the lengths of the other two sides, minus twice the product of the lengths of those sides and the cosine of the angle between them.

c^2 = a^2 + b^2 - 2abCos C

7^2 = 5^2 + 8^2 - 2(5 *8) Cos C

49 = 25 + 64 - 80 CosC

-40  = -80 CosC

Cos C = 0.5

C = 60°

b^2 = a^2 + c^2 - 2ac Cos B

5^2 = 8^2 + 7^2 - 2(8 *7) Cos B

25 = 64 + 49 - 112Cos B

Cos B = 38

C = 180 - (60 + 38)

A = 82

Learn more about cosine:https://brainly.com/question/29114352

#SPJ1

Please help me with this!

If you answer this correctly, I will give you thanks, a 5-star rating, and brainliest!

Answers

Answer: A

The

Step-by-step explanation:

Help me pls. This is a grade

Answers

Erin should knit at least 25 scarfs

Answer: He should knit at least 25 scarfs.

Step-by-step explanation:

can you please mark me brainliest?

find
the
area
of
this
figure

Answers

48 square miles.

7x4 = 28

10-6 is 4

4x5=20

20+28=48
The answer is 58 sq miles

Please Help!!
The equation and the tables represent two different functions. Use the equation and the table to answer the questions. This table represents C as a function of A.

Answers

Your first answer is correct, the 2nd one is wrong though. If you look at the table when c is 21 a is 5. The next one is 15 because if you plug 5 in the equation you get 15. Not sure about the third question I think c is right though. For the last one -3 is incorrect and should be 0, 12 is fine and 10 should be 5.

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