Find the measures of the angles in a triangle with the ratio of 2:7:9

Answers

Answer 1

Answer:  20, 70, 90

====================================================

Work Shown:

Let x be some positive real number.

Multiply each part of the given ratio by x to get 2x:7x:9x

So we have the three angles 2x, 7x, and 9x.

For any triangle, the three angles must add to 180

2x+7x+9x = 180

18x = 180

x = 180/18

x = 10

This leads to

2x = 2*10 = 207x = 7*10 = 709x = 9*10 = 90

The three angles of this triangle are: 20, 70, 90

This is a right triangle due to the 90 degree angle.


Related Questions

Helpp I will mark brainliestttt

Answers

Answer:

25

Step-by-step explanation:

.45x25+10.00= 21.25

.65x25+5.00=21.25

Tyler ate x fruit snacks, and Han ate less than that. Write an equation to represent the relationship between the number Tyler ate (x) and the number Han ate (y).

Answers

Tx -yx I believe not sure

Find the value of a.

Answers

Answer: 14

Step-by-step explanation: The perimeter is all of the side added together. When finding the perimeter of a rectangle the opposing sides have the same value. So the equation would be 2(12) + 2(a) = 52. 12 x 2 is 24. 52- 24 is 28 and youre left with 28 = 2(a). You divide each side by 2 and get 14 = a

Lois is riding in the country. after riding her bike at a constant speed for 4 hours, she finds that she traveled a distance of 52 miles. Lois wants to know the rate, r, at which she was biking. Drag and drop these tiles to complete the equation Lois could use to determine the rate she was biking.

Answers

she is going 13 miles an hour or 52 divided by 4

Answer:

13 mph

Step-by-step explanation:

When you divide 52 (total miles) by 4 (hours biked) you get 13 as your answer.

Is this "2C4H10 + 13O2 → 8CO2 + 10H2O" balanced or no?

Answers

Yes, the reaction is balanced.

Among the reactants, we have

• 8 carbon

• 20 hydrogen

• 26 oxygen

and among the products,

• 8 carbon

• 16 + 10 = 26 oxygen

• 20 hydrogen

Answer:

Simple Answer... Yes it is balanced.

I WILL GIVE BRAINLIEST Help me please this assignment is due in 10 minutes “If a 40 gram serving of breakfast cereal is 30% sugar. How many grams of the breakfast cereal is in fact pure sugar?”

Answers

Answer:

28 grams are pure sugar

Step-by-step explanation:

40-30% would be 28 pure grams of sugar

Henry planted 24 tomato plants and 18 green bean plants in his garden. Simon planted 30 tomato plants and 25 green bean plants in his garden.
The ratio of tomato plants to green bean plants is
A. the same or B. different for the two gardens.

Answers

Answer:

Its different.

Step-by-step explanation:

Henry's garden:

divide 24 and 18 by 6: you get 4:3 ratio of tomato:green bean

Simon's garden:

divide both 30 and 25 by 5: you get 6:5 ratio of tomato:green bean.

Ray estimates that it will cost $400,000 to send his daughter to a private college in 18 years. He currently has $90,000 to deposit in an account. What simple interest rate must his account have to reach a balance of $400,000 in 18 years?

Answers

Answer:

the interest rate must be 5.585%

Step-by-step explanation:

Give two ways to write the expression "x + 7" as a phrase.

Answers

Answer:

The sum of x and seven, or x plus seven, or the product of x and seven.

Which equation translates the sentence, "Three times the number m plus ten is equal to n"?

Answers

Answer: c

Step-by-step explanation:

Answer: 3m+10=n

Explanation: Perhaps the other person who answered has the same assignment as you, but if not this is the answer.

Which system of equations has infinitely many solutions? On a coordinate plane, 2 lines are parallel to each other. On a coordinate plane, 2 lines intersect at (negative 1, 0). On a coordinate plane, a line has a negative slope.

Answers

Answer:

On a coordinate plane, a line has a negative slope

Step-by-step explanation:

If a graph only shows one line, there is an infinite amount of solutions. We need two separate line equations to cross at a point in order to find the solution to the system. However, if a graph shows two parallel lines that never cross, there are no solutions to that systems of equations.

Answer:

The correct answer is the last graph (C).

Step-by-step explanation:

edge 2020

4. Find and compare the intercepts of the
functions.
Function A
Function B
4y + x = 12

Answers

Answer:

Function A  intercept: 4

Function B intercept: 3

Step-by-step explanation:

The multiplication property of equality could be used to solve which of the following equations?
OX+2)x-3) = 0
m+7=-12
OD-2) = 18
03+y=7

Answers

Answer:

I pretty sure its C. OD-2) = 18

Step-by-step explanation:

What is the slope-intercept form of the equation of the line containing the point (-5, 1) and having the slope 7?

Answers

Answer:

69

Step-by-step explanation:

N

i

g

g

a

Answer:

y = 7x + 36

Step-by-step explanation: Slope intercept form is y = mx + b where your slope is m, your b is the y-intercept, and x and y are your plot points. To solve this you just plug in the numbers. We already know the slope is 7 so we have our m, now we plug in the coordinate (-5, 1) with -5 as x and 1 as y. Plug them in and now you have the equation 1 = 7(-5) + b. You want to solve for b. So you end up getting b= 36. Now you have your y intercept so your final equation is y = 7x + 36. Hope this helped!!

Use the graph to answer the question.
Rena's Money
Money Saved
YA
24
22
20
18
8 16-
2 14
12
10
B
6-
8 9 10
4 5
Weeks
Rena is saving money. She starts with $6. She saves the same amount each week. The graph shows how much money Rena has after 8
weeks.
Based on the graph, which statement is true?
O A At week 8. Rena had $30.
OC. Rena saves $1 each week.
OB. At week 9. Rena had $28
OD. Rena saves $2 each week.

Answers

Answer:

Step-by-step explanation:

The answer is D

Find c, given that a + 18.2, B = 62, and C =48. Round answer to the nearest whole number. Do not use a decimal point or extra spaces in the answer or it will be marked incorrect

Answers

Answer:

[tex]c=14[/tex]

Step-by-step explanation:

a = 18.2

[tex]\angle B=62^{\circ}[/tex]

[tex]\angle C=48^{\circ}[/tex]

[tex]\angle A=180-(62+48)=70^{\circ}[/tex]

From sine rule we have

[tex]\dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}[/tex]

[tex]\Rightarrow \dfrac{\sin A}{a}=\dfrac{\sin C}{c}[/tex]

[tex]\Rightarrow c=\dfrac{\sin C}{\sin A}a[/tex]

[tex]\Rightarrow c=\dfrac{\sin 48^{\circ}}{\sin 70^{\circ}}\times 18.2[/tex]

[tex]\Rightarrow c=14.4\approx 14[/tex]

[tex]\boldsymbol{\therefore c=14}[/tex].

Write an equation and then solve.

Answers

2x + 3(x+2) + 2(x+3) = 33
2x + 3x + 6 + 2x + 6 = 33
7x + 12 = 33
7x = 21, x = 3
Plug into the lines
Line AB = 2(3) = 6 inches
Line AC = 3(3+2)= 15 inches
Line BC = 2(3+3) = 12 inches

What is the coefficient in the mathematical expression?

14+2.7x3


14

2.7x³



2.7

Answers

Answer:

14

Step-by-step explanation:

The coefficient is the is the one by it's self with no variables or exponents

A football team won 8 games last year. This year, the team won 10 games. What was the percent increase in the number of games won?

Answers

Answer:

8

Step-by-step explanation:

8÷10×100

¤8<●♤547764323355

What is da answer my bruddas

Answers

Answer:

0.5

[tex]points \: of \: best \: fit \: are \\ (9, 5) \: and \: (1, 1) \\ slope = \frac{(1 - 5)}{(1 - 9)} \\ = \frac{ - 4}{ - 8} \\ = \frac{1}{2} \\ = 0.5[/tex]

-1/4d-2/5d=39
Solve for d
Please explain I don’t understand

Answers

Given:

The equation is

[tex]-\dfrac{1}{4}d-\dfrac{2}{5}d=39[/tex]

To find:

The value of d.

Solution:

We have,

[tex]-\dfrac{1}{4}d-\dfrac{2}{5}d=39[/tex]

Taking LCM, we get

[tex]\dfrac{-5d-8d}{20}=39[/tex]

[tex]\dfrac{-13d}{20}=39[/tex]

Multiply both sides by 20.

[tex]-13d=39\times 20[/tex]

Divide both sides by -13.

[tex]d=\dfrac{39\times 20}{-13}[/tex]

[tex]d=-3\times 20[/tex]

[tex]d=-60[/tex]

Therefore, the value of d is -60.

Determine the intercepts of the line.

Answers

x=(-250,0)
y=(0,100)
hopefully this helps

Mom buys a rectangular rug with an area of 7 1/6 square meters. The length of the rug is 3 1/3 meters. What is the width of the rug?

Answers

Answer:

Step-by-step explanation:

Multiply the length by 2 so, 3 1/3 x 2 then subtract that answer from the area, and you have the width

The width of the rectangle given the area and length of the rectangular rug is 4 3/10 meters

Given:

Area of the rug = 7 1/6 square meters

Length of the rug = 3 1/3 meters

Area of a rectangle = Length × width

7 1/6 = 3 1/3 × w

43/6 = 10/3w

w = 43/6 ÷ 10/3

w = 43/6 × 3/10

w = (43 × 3) / (6 × 10)

w = 129/30

w = 4 9/30

= 4 3/10 meters

Therefore, the width of the rug is 4 3/10 meters

Learn more about area of a rectangle:

https://brainly.com/question/14137384

Which calculation will ALWAYS give a result greater than 1? A.8/9 × a number less than 1 B.1 2/5 − a fraction less than 25 C. 7 × a number less than 1 D.3/7 + a fraction less than 1/2

Answers

Answer: B.1 2/5 − a fraction less than 2/5

Step-by-step explanation:

Question was not formatted properly and in the proper format, the above is the answer.

1²/₅ - ²/₅ = 1

Any number therefore that is lower than ²/₅ will when subtracted from 1²/₅ give an answer greater than 1 because when ²/₅  was subtracted from  1²/₅, it gave 1 as an answer.

What is a simpler form of the following expressions?
(7m2 - 5)(7m2 + 5)
(This is a rushed one so pls help?)

Answers

Answer:

49m^4 - 25

Step-by-step explanation:

The simpler expression can simply be found by expanding

The kind of expansion we have here is the difference of two squares

(a + b)(a-b) = a^2 - b^2

Thus, we have it that;

(7m^2-5)(7m^2 + 5)

=

49m^4 - 25

Is y=-3.5x-10 proportional

Answers

Answer: =3.5x Slope:

3.5

y-intercept:

0

Step-by-step explanation:

y=-3.5x-10 is an inverse proportional.

Given that, the given equation is y= -3.5x-10.

What is a proportional relationship?

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality".

Put x=0, 1, 2, 3, and 4 in the given equation.

When x=0

y=-10

When x=1

y=-3.5(1)-10

=-3.5-10

=-13.5

When x=2

y=-3.5(2)-10

=-7-10

=-17

When x=3

y=-3.5(3)-10

=-10.5-10

=-20.5

Here, x increases and y decreases, it is inverse proportionality

Therefore, y=-3.5x-10 is an inverse proportional.

To learn more about the proportional relationship visit:

brainly.com/question/12917806.

#SPJ2

find the measure of CDE

Answers

Step-by-step explanation:

Here,

CDE+27+103+50+35=360(BEING THE SUM OF PIE CHART

CDE+215=360

CDE=360-215

CDE=145

(i amnt sure about answer)

Help !!! ANYBODY PLEASE HELP IM BEGGING U

Answers

Answer:

Step-by-step explanation:

Blue- x+10y-10z

help find the value of x. please!

Answers

Answer:

c.4

Step-by-step explanation:

hope it helps ............

help plssss 67*78(67+89)/5=?


ⁱ ⁿᵉᵉᵈ ʳᵉˡᵃᵗⁱᵒⁿˢʰⁱᵖ ᵃᵈᵛⁱᶜᵉ ʰᵉˡᵖ

Answers

Answer:

whats going on in the relationship?