Mathematics High School

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

what is 45% of 7/10:)

Answers

Answer: 45% of 7/10 is 0.315

pls help im not smart and this is for a grade

Answers

Answer:

Without the greenhouse effect, the Earth would have an average temperature of -18 °C and be covered in ice.

Step-by-step explanation:

My second prob please help helpppI need help like right now pleaseeeeee

Answers

Answer:

5/8

Step-by-step explanation:

v = l x w x h

v = 3/4 x 1/3 x 5/2

v = 5/8 cm or 0.635 cm

what is the rate of change for the function y= 5x+ 25

Answers

Answer:

5

Step-by-step explanation:

100% right!!

Answer:

5 or -5

Step-by-step explanation:

rate of change is the same thing as slope (or m)

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

Answers

Answer:

6.65 liters

Step-by-step explanation:

.95 liters multiplied by 7 equals

The sum of twice a number and 18 is 5 less than three times the number, Write the
equation and find the number.

Answers

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

What is the completely factored form of 2x^2-32?​

Answers

Step-by-step explanation:   2(x+4)(x-4)        is the factored form of 2x^2-32.

Answer:

2[(x+4)(x-4)]

Step-by-step explanation:

2x2-32

2(x2-16)

2(x2-4^2)

2[(x+4)(x-4)]

0.47 ÷100
with process​

Answers

Answer:

0.0047

Step-by-step explanation:

what is 3x 2 2/3 x 1/3

Answers

Answer:

2.66

Step-by-step explanation:

I'll give u brainliest if right ​

Answers

Answer:i think its a or c

Step-by-step explanation:

On a summer road trip, a family
traveled 3,263.04 miles
. The family
traveled 16 days by car and drove the
same distance each day
. How many
miles did the family travel each day?

Answers

Answer:

203.94

Step-by-step explanation:

just divide the number of miles by the days :DDDDD

√50X3√2=?? help please

Answers

30, i don’t have the explanation i just remember this equation from Algebra 2 for some odd reason

The Invisible Hand promotes
A. marketplace inflation
B. marketplace competition
C. marketplace monopolies
D. marketplace shortages​

Answers

The answer to this is D

6(x+4)+1= pleaseee help

Answers

The answer is this I think 6x+25

You take a taxi for a distance of 4 miles. You paid $6 for the trip Your friend uses the same taxi company to travel 10 miles , and pays 10.50. How much does the taxi company charge per mile, how much is the taxi company’s initial fare? And how much would the company charge for a 15 mile trip?

Answers

Answer:

1.12 dollers per mile

basic fee is 1.52 dollars

15 mile thing is 18.32 dollars

Step-by-step explanation:

branilest? PLEASE

which of the following is not a function A (2,1),(4,3),(6,5),( 8,7) B (2,1),(4,1),(6,5),(5,4) C (2,1),(4,3),(6,5),(2,7)

Answers

The one that is not a function is B

Answer:

B

Step-by-step explanation:

Please help with work

Answers

Answer


If one of your options are six then choose it

Someone please help me with this questions

Answers

Answer:

Coefficient Is the small 2

Madison has only dimes in her pocket . Which amount of money could she have ?

A.) 46 cents

B.) 67 cents

C.) 50 cents

D.) 28 cents

Answers

Answer:

c

Step-by-step explanation:

Letter “ C “ is the answer

find the slope of the line which is perpendicular to the line 7 x + 11 Y - 2=0​

Answers

Answer:

[tex]\huge\boxed{slope=-\dfrac{7}{11}}[/tex]

Step-by-step explanation:

METHOD 1

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

[tex]m[/tex] - slope

[tex]b[/tex] - y-intercept

We have the equation in the general form [tex](Ax+By+C=0)[/tex].

Convert to the slope-intercept form:

[tex]7x+11y-2=0[/tex]    subtract 7x from both sides

[tex]11y-2=-7x[/tex]     add 2 to both sides

[tex]11y=-7x+2[/tex]     divide both sides by 11

[tex]y=-\dfrac{7}{11}x+\dfrac{2}{11}[/tex]

METHOD 2

The general form of an equation of a line:

[tex]Ax+By+C=0[/tex]

The slope:

[tex]m=\dfrac{-A}{B}[/tex]

We have

[tex]7x+11y-2=0\\\\A=7;\ B=11;\ C=-2[/tex]

Substitute:

[tex]m=\dfrac{-7}{11}=-\dfrac{7}{11}[/tex]

Point O is the incenter of ΔABC.

Point O is the incenter of triangle A B C. Lines are drawn from the point of the triangle to point O. Lines are drawn from point O to the sides of the triangle to form right angles and line segments O Q, O R, and O S. Angle Q A O is (2 x + 6) degrees, angle O A S is (4 x minus 12 degrees), and angle Q B O is (3 x minus 15) degrees.

What is m Angle Q B O?

5°
9°
12°
24°​

Answers

Answer: the answer is 12

Step-by-step explanation:

2x+6 =4x-12

-2x=-18

x=9

3(9)-15

27-15

12

Mr. Morgan purchases gas for $3.24 per gallon. After leaving the gas station
he travels 208 miles on 8 gallons of gas. If the car uses gas at a constant rate,
which best describes the number of miles traveled per gallon of gas?

Answers

Free coinssss!!!!!!

Answer:

I think the answer is...

26

Step-by-step explanation:

thank you for my free coins

8.20 divided by 5 equals what

Answers

Answer:

1.64

Step-by-step explanation:

8.20 / 5 = 1.64

The table shows total number of cars rented everyday for a
week from Golden State Rentals, What is the estimated
average increase in car rentals per day for Tuesday through
Friday?
Golden State Car Rentals
M Tu
W
Th
F
Sa
Su
Day
Total cars
41
109 158 199 262 313 352

Answers

Answer:

182

Step-by-step explanation:

starting from TU witch is 109 you keep adding so you get the eqation

109+158+199+262=728

then it's 728 divied by (/) 4 becase that is how many you added and you get 182 cars

Help will mark brainliest answer

Answers

Answer:

i think its 75

Step-by-step explanation:

bend your head to the right and compare to a 90 degree square

it's acute

Answer: 75°

Step-by-step explanation:

m∠BGC + m∠AGB + m∠AGE = 180°

m∠BGC + 31 + 74 = 180°

m∠BGC + 105 = 180°

m∠BGC = 75°

Can anybody please help me with this question please

Answers

Well it has a right angle thing which is 90 so do 90+38+19=147
180-147=33

Step-by-step explanation:

The Missing side using Pythagorean theorem

=√(19)²+(38)²

=√361+1444

=√1805=19√5

=42.485≈42.49( to the nearest hundredth)

Missing angle

=let the angle be x

tan(x)=19/38

x=tan^-1(½)=26.565

x=26.57(to the nearest hundredth)

11. The distance between two houses in a neighborhood is 12 meters. There are approximately 4 meters in 13 feet. Which measurement, in feet, is closest to the distance between the two houses?

Answers

Answer:

The closest distance between the houses in feet is 39 feet

Step-by-step explanation:

Distance between the houses in metres is 12 metres.

Essentially, the problem is asking us to convert this distance to feet using the scale ratio that we are given.

The scale ratio is

4 meters = 13 feet.

1 meter = x feet

by cross multiplying, we have that x = 13/4 feet

We now know how long 1 meter is in feet using the scale we were given

We can now convert the 12 meters to feet.

1 meter = 13/4 feet

12 meters = x feet

[tex]x = 12 \times 13/4=39 feet[/tex]

Therefore, the closest distance between the houses in feet is 39 feet

Can someone help me please

Answers

Answer:

(-4,2)

Step-by-step explanation:

The line going horizontal is the X-axis. And they line going up and down is the y-axis. The way you write the location of a point is (X,Y). Hope this helps!!

I need the equation that passes through this point( and yes its a dif one)

Answers

Answer:

Step-by-step explanation:

this is okay  ... use the point-slope formula [y-y1=m(x-x1)] with your given point.. also m is the slope.. which as is.. is undefined.. so just leave it like that.. the teacher is making this too abstract thou.. to make sense

y-2=m(x-(-3))

y-2 = m(x+3)

y-2 = mx +3m

y = mx +3m +2

that's all you could do for now.. until the slope is defined  :)

Answer:

y-2=m(x-(-3))

y-2 = m(x+3)

y-2 = mx +3m

y = mx +3m +2

Step-by-step explanation:

PLEASE HELP, is this graph parallel, perpendicular or neither?

Answers

Answer:

Step-by-step exp  perpendicular becaus it makes a 90 degree angle

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