Mathematics High School

what is the answer for this

Answers

Answer 1

Answer:

∠B = 141

Step-by-step explanation:

n - > number of sides

n = 7

Sum of all interior angles = (n -2 ) * 180

= 5 * 180 = 900

∠B + 148 + 90 + 142 + 130 + 129 + 120 = 900

∠B + 759 = 900

∠B = 900 - 759 = 141

Related Questions

A cylindrical can of tennis balls holds a stack of three tennis balls so that they touch the can at the top,bottom,and sides. The radius of each tennis ball is 1.25 inches. Find the volume inside the can that is not taken up by three tennis balls.round to the nearest tenths.

Answers

Answer:

3.7555555536321

Step-by-step explanation:

maths help please!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Remark

Assume all of the sheet of plywood is to be used.

Front and back = 2 * 2x *h

Top and Bottom = 2 * 2x * x

Left/Right side = 2 * x * h

Total area = 4xh + 4x^2 + 2xh

Total area = 6xh + 4x^2

Total area = 600

6xh + 4x^2 = 600

h = (600 - 4x^2)/6x

h = 100/x - 2/3 x

Volume = x * 2x * h

Volume = 2x^2 * (100/x - 2/3 x)

Volume = 200x - 4/3 x^3

I can do this without calculus (I think), but it is much easier to use it.

dV/dx = 200 - 4x^2

This is a maximum when dV/dx = 0

dV/dx = 200 - 4x^2 = 0

4x^2 = 200

x^2 = 50

x = 5√2

HELP ME I NEED THE ANSWER NOW

(Rip my mom makes me do trig when I’m literally in grade 6)

Answers

the answer would be solved in that problem below. However, there is a simpler way to solve it, which you’ll learn soon, using sine, cosine, and tangent. Props to you for learning such a hard subject at a young age

The area of this trapezoid is what?

Answers

Answer:

The area of this trapezoid is 8cm

Answer:

130

Step-by-step explanation:

first decompose the trapezoid into a square in the middle and 2 triangles on the left/right side, both triangles are congruent so you only find the area of one triangle, which is 9 because do 2x9 = 18/2 = 9, now let's move on to the middle square 14 x 18 = 112, then you add them all up remember there are 2 triangles,

112 + 9 + 9 = 130

Write the equation of this line in y= mx + b form

Answers

Answer:

y=2x

Step-by-step explanation:

Slope (m): the formula for slope is y2-y1 over x2-x1 so it will be 2-(-2) over 1-(-1) and the result will be 2.

Y intercept: The Y intercept is 0 as shown in the graph

LAST question !! need help with number 9 but if u can help me with #8 ur an angel

Answers

Answer:

8) interior angle = 160

9) x = 20

Step-by-step explanation:

18-gon has 18 sides

The formula for sum of interior angles for an 18-gon is:

(18x180)-360 = 2880 degrees

2880 degrees / 18 angles = 160 degrees

exterior angles = 360 degrees

360 = (3x-2)+(x+8)+(4x+9)+(2x-1)+(3x)+(4x+6)

360 = 3x-2+x+8+4x+9+2x-1+3x+4x+6

360 = 17x+20

17x = 340

x = 20 degrees

How to find the slope and y intercept from two coordinate pairs

Answers

first use the slope formula to form the slope
m = (y2-y1)/(x2-x1)
and then find the y intercept by (0,b)
then plug m and b into
y=mx+b

Answer:

Slope: y2-y1/x2-x1

Step-by-step explanation:

You find slope from two coordinate pairs by using the slope formula(y2-y1/x2-x1) or rise over run from a graph.

To find y-intercept, x needs to be 0 on a graph.

Hope this helps!

A baby elephant weighs approximately 2.5 x 10 pounds. If an adult elephant can weigh up to 56 times more than a newborn elephant, how much could an adult elephant weigh?

Answers

Answer:

1400

Step-by-step explanation:

Answer:

1400 I hope its correct

Solve two and one third times four fifths

Answers

Answer:

1 13/15 is your answer

Step-by-step explanation:

2 1/3 x 4/5 = 1 13/15

The measure of A is 14 degrees greater than the measure of B. The two angles are complementary. Find the measure of each angle

Answers

Answer:

[tex]A = 52[/tex], [tex]B = 38[/tex]

Step-by-step explanation:

The sum of two complementary angles is always [tex]90[/tex]°

[tex]A + B = 90[/tex]

[tex]A = B + 14[/tex]

substitute [tex]A[/tex] for [tex]B = 14[/tex]

[tex](B + 14)+ B = 90[/tex]

[tex]2B + 14 = 90[/tex]

[tex]2B = 76[/tex]

[tex]B = 38[/tex]

input this into the original equation

[tex]A + 38 = 90[/tex]

[tex]A = 52[/tex]

plz mark me brainliest ;)

who ever gets it 5 star and brainlessiess

Answers

Answer:

I think it C if it not please don't report me

What is 45 minutes before 7 o'clock

Answers

Answer: Its 6:15

Step-by-step explanation:

Its simple math. 7:00 subtract 45minutes, knowing that 60minutes is an hour and that its the 7 hour from the 6 hour. Gets you 6:15.

Yep.

The 45 minutes before 7 o'clock will be 6.15 AM/PM.

What is the time?

the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

In other words, time is something which measure by motion and it is given by einstein that time depends upon motion.

For example time = distance/velocity so it means time also depends on velocity.

In the given question, we know that in

1 hour = 60 minutes

45 minutes before of 7 o'clock = 60 - 45 = 15 minutes after 6 o'clock hence 6.15 minutes will be correct answer.

For more about time

https://brainly.com/question/28050940

#SPJ2

Solve the equation for y. y/7 = 3

Answers

Answer:

y=21

Step-by-step explanation:

Write the rule of the transformation

Answers

Answer:

(x + 5, y + 1)

Step-by-step explanation:

As we can see, what we have is a translation

let us pick a point

G( -5,-2)

To;

G’(0,-1)

so the shift on the x-axis is;

(0-(-5)) = 5

shift on the y-axis is;

(-1-(-2) = 1

we have a rightward shift of 5 units on the x-axis and 1 unit on the y-axis

So we have the rule as;

(x + 5, y + 1)

Find the area of the figure.

Answers

Answer:

33 sq units

Step-by-step explanation:

if you section it off into a rectangle and two triangles, the large rectangle that makes up most of the shape is 6x4 units or 24 sq units. each triangle is 3x3 units, so together they would make one 3x3 square. the 3x3 square would have an area of 9, and the answer is 24+9, or 33 sq units

Please help find the missing side length !! M=

Answers

m = 4

As ABCD is similar to QRST.

All sides of ABCD are same. So, all sides of QRST are also same.

Answer:

Step-by-step explanation:

Since QRST ~ ABCD,

QT = 4

which makes

RS= 4

PLEASE MARK ME AS BRAINLIEST!!!!!

Help as soon as possible, please.

Answers

Answer:

8 units

Step-by-step explanation:

Let the center of the circle be point O.

Then

EC + EO = 13EC = 13 - EO

The length of EO is the side of triangle OEB.

Use Pythagorean theorem:

EO² + EB² = OB²EO² + 12² = 13²EO² = 169 - 144EO² = 25EO = √25EO = 5

Find the value of EC:

EC = 13 - 5 = 8

I need help really bad please help me

Answers

Answer:

Step-by-step explanation:

FIRST ONE

-7x and -2x can both be combined

Select whether each equation is a linear equation in standard form. Select Yes or No for each equation.

Answers

Answer:

yes

Step-by-step explanation:

Move 4x to the right to get y= -4x + 5. This is a linear equation because the graph of it is a straight line.

Select all possible cross sections of a sphere.
A
point
B
square
circle
D
triangle

Answers

Answer:

The only cross sections a sphere has is a circle.

if there are 2 fish but 1 fish drowns how many fish left?

Answers

only 1 fish would be left

Answer:

2 fish

Step-by-step explanation:

FISH DON"T DROWN

identify the area of the figure rounded to the nearest tenth

Answers

Answer:

71.4 in ^2

Step-by-step explanation:

area of the circles = πr^2

3.14(4x4) = 50.24 but you only have half so divide by 2

= 25.12

second circle

3.14(2x2)= 13.56 again you only have half so divide by 2

= 6.28

square

5x8 = 40

add them all up

25.12+6.28+40 = 71.4

Pls help me no explanations needed

Answers

Answer:

-5/8

Step-by-step explanation:

A regular pentagon's sides each have a length of 7 cm and an apothem of 8 cm. What's the area of the pentagon? (giving brainliest!!)

150 cm²

146 cm²

127 cm²

140 cm²

Answers

Answer:

140 cm^2

Step-by-step explanation:

(5 apothems cut the pentagon into 5 rectangles 8 x 3.5)

3.5 x 8 x 5 = 140 cm^2

MULTIPLYING POWERS WITH THE SAME BASE
Match each product of powers with its simplified expression

Answers

Answer:

1. 5²

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Step-by-step explanation:

1. 5⁶⁺⁽⁻⁴⁾=5²

2. 5¹⁺³=5⁴

3. 5⁻³⁺⁽⁻³⁾=5⁻⁶=1/5⁶

4. 5⁽⁻⁴⁾⁺⁴⁺⁰=5⁰

5. 5⁷⁺³=5¹⁰

your answer would be the following:

1. 5²

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Right on EDGE 2021 for math

Complete the table by filling in the probabilities of the population’s preferences.

Answers

I can’t see the picture... pls send a pic so I can solve

Answer:

0.60

0.95

1-0.95=0.05

Step-by-step explanation:

Sample answer on Plato

graph y=-2(x-5)(x+1)

Answers

Answer:

Y=2(x-5)(x+1)

Y=2x-10+2x+2

=4x-8

Y =4x-8

ASAP!! 20POINTS!! Students just finished taking test and these are the scores: 75, 80, 62, 98, 90, 86, 55, 86, 92, 66. What is the median of the scores?

A.83
B.86
C.79
D.43

Answers

A is the answer

Step-by-step explanation:

Help it’s timed tooo...

Answers

Answer:

Step-by-step explanation:

Same sides

It’s 3 all the sides are the same

Find each angle measure

Answers

Answer:

1=125

2=55

3=55

4=125

5=125

6=55

7=55

8=125

Step-by-step explanation:

Other Questions

Which sentence provides the best objective summary of the speech?1. Reagan displays his talent for leadership and rhetoric as he explains that the Berlin Wall is a symbol of totalitarianism, and then he calls upon the Soviet leader to keep the wall.2.Addressing the leader of the Soviet Union, Reagan gives examples of the many ways in which economic freedom allows people to thrive, as they have in West Berlin and West Germany.3.Reagan argues that the Berlin Wall represents and fosters the deprivations of Eastern Europe, and for the sake of all mankind's freedom and prosperity, it should be torn down.4.According to Reagan, a literal and symbolic wall has divided Germany and the great city of Berlin, and on one side, the nation has thrived while on the other the people have been deprived of freedom Read the following scenario. Which of the following skillsconditions should concern you?Timmy is in second grade. His handwriting is legible, but sloppy at times. He has trouble playing the recorder in music class. He canthrow a ball, but has difficulty catching it. He can not ride a bike or jump rope.Timmy can handle about two or three minutes of high-intensity exercise. He wets the bed about once a month, usually when he is feelingstressed. He complains of occasional mysterious pains, but usually feels better shortly.Timmy's gross motor skillsTimmy's staminaTimmy's fine motor skillsTimmy's physical health If you roll a fair 6 sided die and then roll a second fair what is the probability that you roll 1, 2, or 3 on the first die and roll 5 on second Write the slope-intercept form of the equation of the line through the given points.through: (5,1) and (1, -3) There are 42 girls and 56 boys who want to play a game. Each team will have both boys and girls on it. The ratio of boy to girls has to be the same for each team. Everyone must participate in the game. What is the greatest number of teams that can be formed? Question 45In paragraph 32, what does the blade of grass represent for T. J.?AnswerAA final remnant of something preciousBThe harvest he anticipatedThe new home he has foundDHis friendship with the other boys What does a President preserve , protect and defend Select all the expressions that have a value of 40 when x = 10.8.4,320 - X288+ 16(x2 - 18) + 33.52(1,752 + x) 162+ 3612 Throughout his life, Jordan has made excuses instead of accepting responsibility for his mistakes. On his first day at his job at Taco Mart, he mistakenly drops a bucket of taco sauce. When the boss asks what happened, Jordan lies, and he is caught. As a punishment the boss tells Jordan that he must write a letter of apology to the rest of the staff. Because Jordan has spent his life avoiding responsibility, which of the following is the most likely action Jordan will take?A.He will write the letter of apology.B.Writing the letter sounds difficult and embarrassing, so he will quit.C.He will not write the letter, but he will apologize face-to-face with the boss and the staff.D.He will write a letter AND pay for the lost supplies himself.Please select the best answer from the choices providedABCD Math problem: 43 (7 3) 2. Which of the following phrases would be the BEST title for the above list?A.Excuses meant to avoid personal responsibilityB.Explanations meant to explain the lack of personal responsibilityC.Acknowledgements of personal responsibilityD.Strategies for conflict resolutionPlease select the best answer from the choices providedABCD Hello! Last question of the day! And if you don't know the answer PLS DONT ANSWER OR I WILL HAVE TO REPORT!!! Thank you! (Use the photo)Using the following data, calculate the mean absolute deviation:1 6 5 8 3 7 1 4 10 9What is the mean absolute deviation for these data?A: 9B: 5.4 C:5 D:2.6 x + 5 = 17 =____ help PLEASE HELPPPP DUE IN 2 minutes Tell the story of a time you made an "unexpected" friend and learned something important from that friend. In your response, be sure to explain how the friendship came about and the ways in which this friendship taught you something. 3. Contrast How does Whitman's language describing the domain of science inlines 1-4 contrast with his language in lines 5-8? How does this contrast expressa theme in the poem A garden table and a bench cost $935 combined. The garden table costs $85 more than the bench. What is the cost of the bench? Which example best demonstrates propaganda?A. A patriotic chant students must recite every morningB. A list of the 20 movies that defined a generationC. A newspaper article that summarizes a senator's speechD. A book that covers the highs and lows of a mayor's career Koch traded Machine 1 for Machine 2 when the fair market value of both machines was $49,750. Koch originally purchased Machine 1 for $75,500, and Machine 1's adjusted basis was $40,250 at the time of the exchange. Machine 2's seller purchased it for $64,750 and Machine 2's adjusted basis was $55,250 at the time of the exchange. What is Koch's adjusted basis in machine 2 after the exchange Which expression has a value that is 6 times the value of the expression 63 3y? A. 6 X 63 - 3y B. 63 - 3y + 6 C. 63+ (6 x 3y) D. 6 X (63 - 3y) o