Khan academy



Answer if you know only!!!

Khan Academy Answer If You Know Only!!!

Answers

Answer 1

Answer:

x=45°

Step-by-step explanation:

The 160° plus the unlabeled angle to the left of it are supplementary, meaning when added they equal 180°. The unlabeled angle will therefore be 20°. The angle across from the 20° will also be 20°. 115° + 20° = 135°. Now all that is left on the top half is x.

180° - 135° = 45°


Related Questions

Find the value of x.
35
21
Х
X=
= [?]
Help

Answers

Step-by-step explanation:

Using Pythagoras theorem

x=✓(35²-21²)=✓784=28 units

ANSWER NEED URGENTLY PLEASE •_•

Answers

Answer:

6. 49

7. 58

Step-by-step explanation:

6.3x-25+x+9=180

4x-16=180

4x=196

x=49

7. y=x+9=49+9=58

find c and round. geometry

Answers

Answer:

69.10738° or 69.1

The answer is 69.1 hope this helps

A triangular window is above the door to a café. The base of the window is 12 feet, and the height is 10 feet.



What is the area of the window?

Answers

Answer:

Your answer is 60

Hope that this is helpful. Tap the crown button, Like & Follow me

Answer: Hello! Your answer is.....

The area of the triangle is 60.

Step-by-step explanation:

12 x 10 = 120

120/2 = 60

Hope this helps!♥

Sorry this is late.

Solve For X. Please add an explanation.

Answers

Answer:

Your answer is 2.5

Hope that this is helpful. Vote and like it

1. MGSE.9-12.G.C. 2
A GRV is inscribed in a circle as shown the figure below. In AGRV, GR is congruent to GV. What is the
measurement of GR?
G
/200
A. 20°
B. 160°
C. 130°
D. 700

Answers

the answer is b :))))))

The angle sum of a triangle is 180 degrees. The measure of the angle GR is 160° then the correct option is B.

What is a circle?

It is a locus of a point drawn an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

A ΔGRV is inscribed in a circle as shown in the figure below.

In ΔGRV, GR is congruent to GV.

Then the angle ∠V and ∠R are also equal.

The sum of the angle of the triangle is 180 degrees. Then angles ∠V and ∠R will be

∠V = ∠R = 80°

We know theorem

An arc of a circle subtends twice the angle it subtends anywhere on the circle's circumference at its center.

Then the measure of the angle GR will be

→ 2 × 80°

→ 160°

More about the circle link is given below.

https://brainly.com/question/11833983

#SPJ2

Which shows the distributive property?

5x+2= 2+5x
5(x+2) = 5x+10
5(x+2)= 5(2+x

Answers

The 2nd one. You multiply both the x and the 2 by 5.

Answer:

5(x+2) = 5x+10

Step-by-step explanation:

A movie-streaming service charges $3.75 to watch a
movie. The following year, the price increases to
$5.25. What is the percent increase in the cost to
stream a movie?

Answers

Answer:

5.25 is a 40% increase of 3.75.

Step-by-step explanation:

Percentage of increase = |3.75 - 5.25|/3.75 = 1.5/3.75 = 0.4 = 40%


1.03 – 0.06
subtracting Desimals of Different Lengths 1c

Answers

The answer should be 0.97

Question 9 of 10
What is the value of n?
11330

1142°
A. 810
O B. 38°
C. 47°
D. 850

Answers

Answer:

n = 85

Step-by-step explanation:

Sum of supplementary angles = 180°

Quick I need it help

Answers

Answer:

8 hours

Step-by-step explanation:

it's increasing by 6 so at the end there's a reminder of 2.

Answer:

7

Step-by-step explanation:

60-16=44

44÷6≈7

Please help, I will give brainliest, I am struggling badly.

Answers

Answer:

1 solution

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

What is the slope of a line that passes through (1,5) (4,6)?

Answers

Answer:

m= 1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

The first three terms of a sequence are given .Round to the nearest thousand (if necessary) 13,22,31, find the 31st term

Answers

Answer

The sum of this sequence is  66

please help me asap ​

Answers

Answer:

60cm

24.84 ft

Step-by-step explanation:

First one:

think that you are moving right small triangle to the left

which makes it 12 x 5 rectangle = 60cm

Second one:

Kind of same way

which makes it 10.8 x 2.3 = 24.84

pls thanks and brainest

the answer is 60cm^2 <3

Juliet is standing on a balcony looking down at Romeo on the ground. The angle of depression from Juliet to Romeo is 37 degrees. If the balcony is 15 feet above the ground, how far is Romeo from the base of the house? Round to the nearest thousandths of a foot.

Answers

The answer is 15 can you brainlist this

Solve p
0.6p+4.5=22.5

I need an answer before 11:59 pm

Answers

P = 30 is the answer

What to the power of 2 equals 9/16

Answers

4

3

As the power holds a negative, this means that we can put 1 over

9

16

, which is equal to

16

9

leaving us with;

(

16

9

)

1

2

The power of

1

2

is also another way of writing the square root;

=

16

9

From here you can find the square roots of 16 and 9, and giving you your final answer;

=

4

3

Step-by-step explanation:

(A)² = 9/16

A = 3/4 and -3/4

4. Cassie has a total of 110 coins in her piggy bank. All the coins are q
total value of $20.30. How many quarters and how many dimes are
Solution:
Reply Reply all Forward

Answers

Answer:

b

Step-by-step explanation:

its easy

Answer:

there are 62 quarters and 48 dimes

Step-by-step explanation:

d + q = 110......d = 110 - q

0.10d + 0.25q = 20.30

0.10(110 - q) + 0.25q = 20.30

11 - 0.10q + 0.25q = 20.30

-0.10q + 0.25q = 20.30 - 11

0.15q = 9.30

q = 9.30/0.15

q = 62 <==== there are 62 quarters

d = 110 - q

d = 110 - 62

d = 48 <==== there are 48 dimes

1/4( 16x-8)-8x= -1/3 ( ? x+9)

What is the only value you can substitute to have no values of x?

What number would I need to change 9 to have all values of x?

Answers

Answer:

d.16

Step-by-step explanation:

Solve 7 2/3 − ( 1 2/4 + 3 6/8 )

Answers

Answer: 2.41666666667

Step-by-step explanation: .

The points (6, -23) a
and
(11, r) lie on a line with slope 4. Find the missing coordinate r.

HELP ME PLEASE ITS DUE IN 2 HOURS I NEED HELPPP I WILL MARK BRAINLIEST HELPPP PLSSSSS

Answers

Answer:

[tex]r=-3[/tex]

Step-by-step explanation:

The line that passes through the two points (6, -23) and (11, r) has a slope of 4.

We want to determine the missing value of r.

We can use the slope formula:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Let (6, -23) be (x₁, y₁) and let (11, r) be (x₂, y₂). The final answer should be 4. Therefore:

[tex]\displaystyle \frac{r-(-23)}{11-6}=4[/tex]

Simplify and evaluate:

[tex]\displaystyle \frac{r+23}{5}=4[/tex]

Multiply both sides by 5:

[tex]r+23=20[/tex]

Therefore:

[tex]r=-3[/tex]

Need help please. Thank u

Answers

The answer is the third option choice

1. 9p - 4 = 41

2. 6y + 3 = 15

3. -4h + 8 =36

Answers

P=4.11111111 y=2 h=-7

Answer:

1: P= 4.9 2:Y=2 3:H=-7

Step-by-step explanation:

find the prime facrorization for 100 A.2² × 5² B.2×50 C.4×25 D.2³ × 5² E. 2² × 5³ ​

Answers

Answer:

A

Step-by-step explanation:

100-25*4=5 squared*2 sqaured

so A

Answer:

prime factorization of 100=a.2²+5²


I went to the store and bought 4 packs of nerds for $0.98 each and a pack of Little Debbie cakes for $2.15. How
much money did I spend?

Answers

Answer:

6.07

Step-by-step explanation:

$6.07 because .98x4 = 3.92 and 3.92 + 2.15= 6.07

Will give brainliest

Answers

Answer:

A and D

Step-by-step explanation:

Answer:

A and D.

Step-by-step explanation:

The main property of rhombi is that they have all four congruent sides.

So the only two quadrilaterals with four congruent sides are A and D.

The radius of a sphere is increasing at a rate of 4 mm/s. How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm

Answers

Answer:

The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.

Step-by-step explanation:

Volume of a sphere:

The volume of a sphere is given by the following equation:

[tex]V = \frac{4\pi r^3}{3}[/tex]

In which r is the radius.

Implicit derivatives:

This question is solving by implicit derivatives. We derivate V and r, implicitly as function of t. So

[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]

The radius of a sphere is increasing at a rate of 4 mm/s.

This means that [tex]\frac{dr}{dt} = 4[/tex]

How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm?

This is [tex]\frac{dV}{dt}[/tex] when [tex]r = \frac{d}{2} = \frac{60}{2} = 30[/tex]. So

[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]

[tex]\frac{dV}{dt} = 4\pi*(30)^2*4[/tex]

[tex]\frac{dV}{dt} = 1508[/tex]

The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.

Calculate the sample variance and sample standard deviation for the following frequency distribution of heights in centimeters for a sample of 8-year-old boys. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Heights in Centimeters Class Frequency 116.1 - 120.0 38 120.1 - 124.0 24 124.1 - 128.0 28 128.1 - 132.0 43 132.1 - 136.0 29

Answers

Answer:

[tex]s^2 = 0.9938[/tex] --- sample variance

[tex]s = 0.9969[/tex] --- sample standard deviation

Step-by-step explanation:

Given

[tex]\begin{array}{cc}{Heights} & {Frequency} & {116.1-120.0} & {38} & {120.1-124.0} & {24} &{124.1-128.0} & {28} & {128.1-132.0} & {43} & {132.1-136.0} & {29} \ \end{array}[/tex]

Required

Calculate the sample variance and sample standard deviation

First, we calculate the midpoint of each class:

[tex]\begin{array}{ccc}{Heights} & {Frequency} & {m} &{116.1-120.0} & {38} & {118.05}& {120.1-124.0} & {24}& {122.05} &{124.1-128.0} & {28} &{126.05}& {128.1-132.0} & {43} & {130.05} &{132.1-136.0} & {29} &{134.05}\ \end{array}[/tex]

The midpoints are calculated by taking the average of the class intervals.

For instance:

Class 116.1 to 120.0 has a midpoint of

[tex]m = \frac{1}{2}(116.1+120.0)[/tex]

[tex]m = \frac{1}{2}(236.1)[/tex]

[tex]m = 118.05[/tex]

The same approach is applied to other classes.

Next, is to calculate the mean:

[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]

In this case, it is:

[tex]\bar x = \frac{\sum fm}{\sum f}[/tex]

Where

[tex]m = midpoint[/tex]

So, we have:

[tex]\bar x = \frac{118.05*38+122.05*24+126.05*28+130.05*43+134.05*29}{38+24+28+43+29}[/tex]

[tex]\bar x = \frac{20424.10}{162}[/tex]

[tex]\bar x = 126.07[/tex]

The sample variance (s^2) is:

[tex]s^2 = \frac{\sum(m - \bar x)^2}{\sum f -1}[/tex]

This gives:

[tex]s^2 = \frac{(118.05-126.07)^2+(122.05-126.07)^2+(126.05-126.07)^2+(130.05-126.07)^2+(134.05-126.07)^2}{38+24+28+43+29-1}[/tex]

[tex]s^2 = \frac{160.002}{161}[/tex]

[tex]s^2 = 0.9938[/tex]

The sample standard deviation (s) is:

[tex]s = \sqrt{s^2[/tex]

[tex]s = \sqrt{0.9938[/tex]

[tex]s = 0.9969[/tex]

Solve the system of equations below.
3x +8= 2
7x + 3y = 1

Answers

Answer:

I love alegbra anyways

The ans is in the picture with the steps how i got it

(Hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

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