Mathematics High School

A triangle has sides of length 3 cm, 5 cm, and 7 cm.
Find the size of the largest angle in the triangle,

Answers

Answer 1

Answer:

C=120 degrees

Step-by-step explanation:

We can use the law of cosines to find an angle when we have all three sides

(7)^2 = (5)^2 + (3)^2 -(2)(5)(3)Cos(C)

49 = 25 +9 -30Cos(c)

49= 34 -30Cos(c)

15 = -30Cos(c)

Cos(c) = -1/2

C=120 degrees

Related Questions


What is the minimum value for the function shown in the graph?

______

Answers

Answer:

The minimum value is -6

Step-by-step explanation:

The maximum value is always a "hill" looking shape, while a minimum value is always a "U" shape

Someone help with this please

Answers

Answer:

The answer is the last one!

Step-by-step explanation:

x is the domain and y is the relation

-Sumin <3

Please help this is due today

Answers

Answer:

A (13 units)

and E (the one you chose)

Step-by-step explanation:

Please hurry and answer correctly.
What is the area of the figure shown?


Answers

Answer:

the answer is c cuz if u do da math and add stuff u get 52 sq. cm

Step-by-step explanation:


Find the solution to the following system of linear
equations by using the substitution method.
y = 4x -4
X+ y = 11

Answers

Step-by-step explanation:

[tex]y = 4x - 4 \\ x + y = 11 \\ x + 4x - 4 = 11 \\ 5x = 15 \\ x = 3 \\ y = 4 \times 3 - 4 \\ y = 8[/tex]

If a = 4 and b = 3, find the
measure of angle B.

Answers

Answer:70 should be the angle

Step-by-step explanation:  3x2+4x2=20

LIKE if this helped

Answer:

m∡B = 37°

Step-by-step explanation:

since this is a right triangle you can use the trigonometric ratios of

sin, cos, or tan

in this problem, we know opp/adj so can use tangent

tan(∠B) = 3/4

tan^-1(3/4) = 36.8°

A car travels 100 miles in 4 hours. What is its average speed?

Answers

Answer:

25 miles per hour

Step-by-step explanation:

100 / 4 = 25

Average speed =distance covered over time taken
A.s= 100 /4
A.s=25miles/hour

write a story problem that can be represented with the following equation:
2x + 16 = 22

Answers

If Jenna has $22 and spends all of the money on a pair of $16 sandals and buys two bracelets. How much did each bracelet cost?

PLEASEE HELP ASAP ITS DUE
TODAY

Answers

Answer:
Answer D, x > -6

Please need the answer please help will give brainliest

Answers

I think it’s 48 maybe, not sure though

f(x)=x+5
X=10
What is f(x)= ?

Answers

15. you are basically doing 10+5. hope this helps :))

The height and the slant height of a cone are 24 cm and 25 cm respectively. Find the volume of the cone.

Pls answer with steps :)

Answers

Answer:

volume =183.26 cm³

Step-by-step explanation:

volume of a cone = 1/3πrl

l is the slant height

using; l²=h²+r²

r²= l²-h²

r²= 25²-24²= 625-576 =49

r=√49=7cm

volume = 1/3πrl = 1/3 (π×7×25)= 1/3 ×549.78

=183.26 cm³

6. Allison wants to start saving for college. She got $250 in birthday money
and plans to save $50 a week from babysitting. Which equation could be
used to determine how many weeks it will take for her to save $1000? *

Answers

1000 minus 250 equals 750.00 now 750 divided 50.00 answers is 15 weeks. In 15 weeks she will have 1000 saved.

Carlos has 2 dollars more than half of the total amount of money his brother has. If x represents the amount of money Carlos’s brother has, which expression can be used to represent this situation?


plz hurry

Answers

Answer:

xX2/2?

Step-by-step explanation:

c = .5x + 2
or c = 1/2x + 2

Factor the following completely: 5.02
13.2
6

Answers

Answer:

Factoring cannot be done on fractional numbers. Please restate the question.

ASAP WILL MARK BRAINLINEST
Use the drawing tool(s) to form the correct answer on the provided graph.
Graph the linear inequality shown below on the provided graph.
y < 1/3x - 6

Answers

Answer:

a dashed line going through (0,-6) and (18,0) with it shaded below the line

Step-by-step explanation:

Answer:

Did the test, got it right.

Step-by-step explanation:

ab+c=d solve for b.

Answers

Answer:

give branliest pls

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

all you need is in the photo
please answer fast ​

Answers

Answer:

12 ounces

Step-by-step explanation:

Answer above.

Please help!! Tysm!!!!!!!!!!!!!!!!!

Answers

Answer:

first one

Step-by-step explanation:

because half of the figure

Answer:

The first one

Step-by-step explanation:

Peanuts worth $2.25 a pound were mixed with cashews worth $3.25 a pound to produce a mixture worth $2.65 a pound. How many pounds of each are needed to produce 35pounds of mixture?

Answers

Answer:

14lbs cashews

21lbs peanuts

Step-by-step explanation:

Solve the equation
x2 + 4x - 7 = 0
by completing the square.
Give your answers correct to 2 decimal places.​

Answers

Answer:

x ≈ - 5.32, x ≈ 1.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2) x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± [tex]\sqrt{11}[/tex] ( subtract 2 from both sides )

x = - 2 ± [tex]\sqrt{11}[/tex]

Then

x = - 2 - [tex]\sqrt{11}[/tex] ≈ - 5.32 ( to 2 dec. places )

x = - 2 + [tex]\sqrt{11}[/tex] ≈ 1.32 ( to 2 dec. places )

Raul put 20 gallons of gas in his car. How much did Raul spend on gas?

Answers

Well if the average price of gas in the u.s. is around $2.00 so I think it would around $40.00.

Find x, the height of the tree. (Decimal Answer)

Answers

Answer:

i think it is 15.9 but that is only if the two triangles are congruent

Step-by-step explanation:

Determine the intercepts of the line.
y-intercept:

X -intercept:

Answers

X-intercept= 3.5
Y-intercept=2.5

On Monday, Franco borrowed $15 from his friend. Tuesday, Franco borrowed $12 more from his friend. Franco plans to pay his friend back $18 on Wednesday.What will Franco’s balance be on Wednesday?(Anwser with number only please)

Answers

9

Step-by-step explanation:

I believe its 9 because he borrowed $15 on Monday and then he did $12 more on Tuesday and thats already $27 that he owes his friend but then Franco pays his friend back $18 and he will just owe him $9 left

3/10 divided by 6/11

Answers

Answer:

Hi, I love these types of questions. So, ima teach you how to find the answer. If your only looking for an answer, skip to the bottom. So, what your trying to find is the solution to 3/10 divided by 6/11. So, remember, copy, dot, flip.

Copy- Copy the equation- 3/10 6/11

Dot- Change the division sign to multiplication- 3/10 X 6/11

Flip- so, this is where it gets a bit tricky. You wanna flip the numerator and denominator on the second fraction- 3/10 X 11/6

now multiply across-

33/60

simplify

11/20

Your answer is 11/20

An experiment was performed on a 2kg block. Forces 5, 10, and 15 Newton's respectively were applied to the block for 5 seconds. Describe the difference in acceleration between the three trials?

Answers

Answer:

B) The final acceleration will triple between the first and third trial.

I need help solving

Answers

Step-by-step explanation:

Divide a percentage by 100% to convert it.

=> (1/20%) / 100% = 0.0005 or 1/2000.

Solve for x
-2x + 4 = 6x - 12

Answers

Answer:

x=2

Step-by-step explanation:

-2x+4=6x-12  Add 2x to both sides.

+2x    +2x

4=8x-12         Add 12 to both sides.

+12  +12

16=8x            Divide by 8 on both sides.

/8 /8

2=x

Hope this helps you out and have a great day (～^▽^)～

Answer:

x=2

Step-by-step explanation:

-2x + 4 = 6x - 12

First add 2x to each side: 4=6x−12+2x

Now simplify 6x-12+2x: 4=8x-12

add 12 to both sides: 4+12=8x

Simplify 4+12: 16=8x

Divide both sides by 8: 16/8

you end up with x=2

Hope this helps :)

Identify the multiplication problem that matches the model

Answers

Answer:

I think its 2 x 5/8

Step-by-step explanation:

tell me if its right!

D is the correct answer
Other Questions
What's the length of YZ? *not to scale are -225 degrees and 225 degrees coterminal angles ? Help pls and thank you:) PLEASE HELP!!! Greta currently works 45 hours per week and earns a weekly salary of $729. Shewill soon be starting a new job where her salary will be increased by 10% and her hours reduced by 10%.How much more will she be earning per hour at her new job? Does anyone know wha this could be What is the meaning of life? help me plz and thx :) MK SO WHAT...write a list of steps that are needed to find the measure of B. What is 2 3/4 miles +3 1/3 miles? Bruce Wallace (1963) established a laboratory population in which the recessive allele lt was at a frequency of 0.5. He propagated the population for 10 generations, and determined the frequency of lt each generation.a. Trueb. False how do you graph x+ 4 HELP PLSSPLSPLSSS ILL GIVE BRAINLIEST Which mountain range provided protection to the city of romeF. alpsG.hindu kushH. himalayasJ. pyrenees Tina bought a new shirt for $20. Her mom said she will pay 15% of the total cost. How much will she pay? What rule/principle States that electrons fill orbital from lowest energy to highest energy?A: Aufbau principleB: Hund's ruleC: Pauli exclusion principle What is the solution to this equation?x + 14 = -6 Why is there hate towardsMuslim people? -40 =-5y + 8xx-intercept:y-intercept: T or F help please i will give brainliest Two people apply for loans of the same amount. Due to differences in their credit scores, their payments differ by 572per month. How much more will the person with the lower credit score pay at the end of the 36-month loan.