Mathematics High School

Find the value of x and justify your answer

Find The Value Of X And Justify Your Answer

Answers

Answer 1

Answer:

a.

2x+4x+3x=180 sum of interior angle of the triangle is 180

9x=180

x=180/9=20

b.

x-20+x+10+x-20=180sum of interior angle of the triangle is 180

3x-30=180

3x=180+30

x=210/3=70

c.x+10+x+20+x=180 linear pair

3x+30=180

3x=180-30

x=150/3=50

Answer 2

Answer:

The picture is kinda blurry so I hope I've got it right.

a) x = 20°

b) x = 70°

c) x = 50°

Step-by-step explanation:

a) 2x + 3x + 4x = 180°

9x = 180°

x = 50°

b) (x - 20°) + (x - 20°) + (x + 10°) = 180°

3x - 30° = 180°

3x = 210°

x = 70°

c) (x + 10°) + (x + 20°) + x = 180°

3x + 30° = 180°

3x = 150°

x = 50°

Related Questions


Find an equation for the line below

Answers

Is this math or algebra??

The equation of the line through (3, - 4) with slope 2/3

Answers

Y = mx + b
m = slope, b = y intercept
Plug in point
Y = 2/3x + b
-4 = 2/3(3) + b
-4 = 2 + b, b = -6
Y = 2/3x - 6

A circular swimming pool has a radius of 20 feet. A fence is going to be built so that there is a 4-foot space around the entire pool. What is the length of the fence? Sunitha solved the problem as shown. A circle with radius 20 feet. A larger circle is 4 feet larger than the smaller circle. Radius = 24 feet. Circumference = 24 pi. What was her error? She should have used 12 in the formula, not 24. She forgot to multiply the radius by 2 in the formula. She did not add the additional fence length to the pool’s radius. She should have used 4 ft in the formula.

Answers

Answer:

she forgot to multiply the radius by 2 in the formula (B)

Step-by-step explanation:

i got it right :)

Answer:

B.

Step-by-step explanation:

A car was purchased for $24,000. Its value is predicted to decay exponentially, decreasing by 13% each year. Write an equation to determine the value of the car.

Answers

Answer:

y= P(0.87)^t

Step-by-step explanation:

Given data

Price P=  $24,000

Rate of decay in price= 13%

The expression in terms of y, p and t  is

y=P(1-r)^t

y= P(1-0.13)t

y= P(0.87)^t

could someone help me on this pleaseeee :)​

Answers

Answer:

the slope is 1, y-intercept is (0,5) hope this helps!

Step-by-step explanation:

At Mountain Park Middle School, there are 250 seventh-grade students. Currently, 32% of those students are in advanced math.

a. ​​ Write an equation to represent the number of seventh-grade students who are not in advanced math. Let a represent the number of seventh-grade students who are not in advanced math.

a = ______% x _______

b. There _______ seventh-grade students who are not in advanced math.

[Fill in the Blanks]

Answers

Answer:

a= 68% × 250

b. 170

Step-by-step explanation:

100%-32% = 68%

solving the equation i get 170

Which side lengths form a right triangle?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
2
,
15
,
17
2,15,172, comma, 15, comma, 17

(Choice B)
B
1
,
8
,
65
1,8,
65
​
1, comma, 8, comma, square root of, 65, end square root

(Choice C)
C
2
,
80
,
9
2,
80
​
,92

Answers

Laila 15 manhhqManlqhw17

Answer:

B

Step-by-step explanation:

John ran 5,000 meters on Monday. He
ran 6 kilometers on Tuesday. How many
total kilometers did John run?

Answers

Answer:

11 kilometers

Step-by-step explanation:

Since there are 1,000 m in 1 km, John ran 5 km on Monday. Combine that with the 6 km he ran on Tuesday, and you get 11 km in total.

Answer:

11 kilometers

Step-by-step explanation:

1000 meters=1 kilometer

5000÷1000=5

5+6=11

1. If X+Y=7 and xy = 10 , then x3+ y3​

Answers

I have the same question lol

Answer:

final answer is 21

Step-by-step explanation:

since x+y=7 and xy=10

2+5=7 and 2(5)=10

so,

(5)3=15  

(2)3=6

15+6= 21

Given the definitions of f(x) and g(x) below, find the value of g(f(5)).
f(x) = 2x – 10
g(x) = x^2 + 6x – 8

I don’t need work I am just looking for the answer !

Answers

gf(x) = g(x^-1) = x^2 + 6x - 8

f(x) = 2x - 10

gf(x) = 6 ( 2x - 10) - 8

gf(x) = 12x- 60 - 8

gf(x) = 12x -68

gf(5) = gf(x) = 12x - 68

gf(5) = 12(5) - 68

gf(5) = 60 - 68

gf(5) = -8

An antique car sold at auction for $50,000. Its value
appreciates by 10% each year. What is the value of
the car after six years?

Answers

Answer:

80,000

Step-by-step explanation:

please help i am in class and need help pleaseeeeee​

Answers

Answer:

360m²

Step-by-step explanation:

Surface area of Pyramid=4*Area of Triangle+Area of Square

Area of Triangle=(1/2)*Base*Height

Area of Square=Side²

Area of 4 Triangles=4*(1/2)*10*13=260m²

Area of square=10²=10*10=100m²

Total Area=260m²+100m²=360m²

Pls help me with this

Answers

ANSWER:

the y- intercept would be 0

What is the sale price of $160 airpods with an 18% discount?

Answers

Answer:

$131.20

Step-by-step explanation:

$160 is the full price, so it is 100% of the full price.

With a discount of 18%, you pay 100% - 18% = 82% of the full price.

82% of $160 =

= 0.82 * $160

= $131.20

Answer: $131.20

which of the following decimal has highest value is a 0.5 b 0.12 c 0.17 d 0.8​

Answers

Answer:

d 80 cents or 0.8

Step-by-step explanation:

Change them all to money. Then look at it again.

0.5 = 50 cents

0.12 = 12 cents

0.17 = 17 cents

0.8 = 80 cents.

You get each of them by starting with a dollar. A dollar has 100 cents.

So 0.5 of a dollar is 1/2 a dollar.

1/2 a dollar is 0.5 * 100 = 50 cents

0.17 * 100 = 17 cents

0.12 * 100 = 12 cents

0.8 * 100 = 80 cents

The largest one is 8

Answer d) 0.8

Step-by-step explanation: Here is a tip, when you see a decimal like 0.5 compared to a bigger looking one like 0.12 add a 0 to the end. It will still have the same value and you won't be as confused.

0.80> 0.50> 0.17> 0.12

Two geometrically similar jugs have volumes of 1000 cm3and 512 cm3.They have circular bases. The diameter of the base of the larger jug is 9 cm.

Answers

Complete Question

Two geometrically similar jugs have volumes of 1000 cm³and 512 cm³.They have circular bases. The diameter of the base of the larger jug is 9 cm.

Calculate the diameter of the smaller jug.

Answer:

7.2 cm

Step-by-step explanation:

To solve the above question,we have the proportion

Smaller volume/ Larger volume = (Smaller diameter/ Larger diameter)³

We are to find the smaller diameter

Hence our formula is give as

Cube root(Smaller volume/ Larger volume)= Smaller diameter/ Larger diameter

=cube root( 512/1000) = x/9

= 8/10 = x/9

Cross Multiply

10x = 8 × 9

10x = 72

x = 72/10

x = 7.2cm

Therefore, the diameter of the second jug is 7.2 cm

What is 589 divided by 31 with remainder?

Answers

Answer:

19 remainder 0

Step-by-step explanation:

When we divide 589 by 31 we get remainder 0.

Here we have to find the remainder when 589  is divided by 31

In order to this proceed with division,

Since we know that,

When the numerator is equal to or more than the denominator, the fraction is said to be inappropriate. It always has a value of one or higher. Since mixed fractions are simpler to understand, improper fractions are typically expressed in simplified mixed number form.

Now

31 ) 589 ( 19

   -  31

 _________

      279

   -  279

 __________

        0

Hence remainder after division is 0.

To learn more about division visit:

https://brainly.com/question/11840361

#SPJ6

help i’ll give brainliest

Answers

Answer:

The 3rd one

Step-by-step explanation:

It's a translation. The rest are reflections.

it’s the first one bc process of elimination

Which of these inequalities has no solutions?

Answers

Answer:

B)√x<-14

Step-by-step explanation:

as we know a redical expression is always greater than or equal to 0 but the B) means that the redical expression is less than 0 which is false

therefore our answer is B

What is the multiplier?

A. 0.1

B. 0.01

C. 10

D. 100​

Answers

Answer:

c

Step-by-step explanation:

0.6*10=6

6*10=60

Answer:

B or A

Step-by-step explanation:

A total of 50,000 contestants are chosen for a survey. A
computer randomly eliminates 20% of the participants
each day.

Answers

I am pretty sure it is linear decrease,

Please help with B...

Answers

Answer:

B

Step-by-step explanation:

The table tells us that when x=-1, y=5. This shows in graph B because it passes through the point (-1,5). The table also tells us that the curve passes through the origin, (0,0). Curve B is the only one that does.

I hope this helps!

please help ASAP... here is a question WRITE 894 290 000 IN SCIENTIFIC NOTATION​

Answers

Answer:

hey there, the answer is 8.9429 × 10^8

Answer:

8.9429 × 10^8

Step-by-step explanation:

ya the answer is 8.9429 × 10^8

help!
50 pts and brainiest

Answers

Answer:

303

Step-by-step explanation:

add all of them and you get 303, hope this helps :)

Answer:

Vertical. A vertical is an alignment in which the top is always above the bottom. It is a property of two or more points in which if a point is directly below the ...

Step-by-step explanation:

Bernie can eat 20 oreos in 5 minutes. If Joe can eat oreos at 3/4
of Bernie’s pace, how many oreos can they eat together in half an hour?

a.200
b. 210
c. 220
d. 230

Answers

Answer:

b

Step-by-step explanation:

Solve for the value of y.​

Answers

Y= 4
Hope this helps!

Answer:

8y-2+60=90(complement ∆)

8y+58=9

8y=90-58

y=4

Help me plz 6th grade math

Answers

Answer: 66

Step-by-step explanation:

6+4^3-8÷2

4^3 = 64

6+64-8÷2

70-8÷2

70-4 = 66

Please help!! Giving BRAINLIEST!

Answers

Answer: D
Explanation: rad 36 is the same as rad 6^2 and they are perfect roots do then you just add the numbers like usual.

Answer ASAP pls pls ASAP

Answers

Answer:

it 5

Step-by-step explanation:

15-10= 5 so r=5

Answer:

The value of r will be 5.

Step-by-step explanation:

15=r+10

15-10=r

5=r

Please help me NO LINKS ASAP will give Brainilest

Answers

Answer:

width x height x length=volume so 5 x 14 x 10= 700cm cubed. Volume=700cm^3

Step-by-step explanation:

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