Mathematics High School

The table gives information about the heights of 50 trees. Work out an estimate for the mean height of the trees.

Answers

Answer 1

Answer:

add h then divide by 2 for h times f

Step-by-step explanation:

Related Questions

(Pythagorean theorem) do the following lengths form a right triangle? (Show steps)

Answers

Answer:

yes

Step-by-step explanation:

Pythagorean theorem equation is a²+b²=c²

c is the longest side which is 5. a and b dont matter in this case

3²+4²=5²

9+ 16 = 25..........simply

25 = 25...............true, these numbers form a right triangle

Consider the line y=3x-3 .
Find the equation of the line that is parallel to this line and passes through the point(7, 4) .

Find the equation of the line that is perpendicular to this line and passes through the point (7, 4).

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Answer:

4.7

Step-by-step explanation:

12x+3=6 4x+1=2
what is happening in this step of the equation solving process?

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Step-by-step explanation:

12x=6-3

12x=3

12x/12=3/12

x=1/4

4x+1=2

4x=2-1

4x=1

4x/4=14

x=1/4

I you have great day

Give the simplified radical form for each side length requested.

Pls answer only if you can explain and if your sure it’s the right answer.

I need help in understanding how to work it myself so please make sure you explain well.

Answers

Answer:

See below

Step-by-step explanation:

30×60×90 right triangle has side ratios as:

s : l : h = 1 : √3 : 2, where s- short leg, l - long leg, h - hypotenuse

45×45×90 right triangle has side ratios as:

l : l : h = 1 : 1 : √2, where l- legs, h- hypotenuse

If you know one of the sides its easy to find the missing ones.

a) 30×60×90 right triangle

Given l = 12s : 12 : h = 1 : √3 : 2CB = s = 12 / √3 = 12√3/3 = 4√3 AB = h = 2s = 2*4√3 = 8√3

b) 45×45×90 right triangle

Given l = √22BC = l = √22AB = l√2 = √22×√2= √44 = 2√11

c) 30×60×90 right triangle

Given h = 20√6s : l : 20√6 = 1 : √3 : 2BC = s = h/2 = 20√6/2 = 10√6AC = l = s√3 = 10√6×√3 = 10√18 = 10×3√2 = 30√2

What is an equation of the line that passes through the points (-4, 2) and (-8, -3)

Answers

Answer:

a line through (-4,2) and (-8,-3) has slope = (2+3)/(-4+8) = 5/4 = (y-2)/(x+4)

cross multiply

5x +20 = 4y-8

5x -4y =-28

Step-by-step explanation:

Evaluate the equation. d - 4.12 = 12.8
A) d = 8.58
B) d = 8.68
C) d = 16.92
D) d = 17.02

Answers

The answer is (C)d=16.92

Answer: i think its D

Step-by-step explanation:

What is the rule for the transformation from the smaller polygon to the larger polygon?

A. (x, y) = (2x, 2y)

B. (t', y) = (x, ky)

C. (x, y) = (3x, 3y)

D. (, 34) = (4., 3y)

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A. (x, y) = (2x, 2y) this should be correct depending on the size of the shape but with no picture or context then A..

10+ Points)
Which is the graph of a proportional relationship?

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Answer:

Step-by-step explanation:

The graph representing a proportional relationship is a straight line graph passing through the origin.

This is shown in graph A

The answer is A i I’m think but not sure

Marguerite is selling space in an advertisement book for a community fund-raising event. Each (1/5) page in the book costs $13.5. What is the cost for (3/5) page.

Answers

Answer:

$40.5.

Step-by-step explanation:

if 1/5 of the book costs $13.5. then to find 3/5 you just have to times the answer by 3.

Evaluate (25/36)^1/2
A 25/6
B 5/6
C 5/36
D 25/36

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5/6 its doneeeeeeèeeeeee

Thirty-six of 80 marbles are blue. What percent of the marbles are blue?

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Answer:

45%

Step-by-step explanation:

The fraction of marbles that are blue is 36/80 = 9/20. To make that a percentage, multiply it by 100%.

9/20 × 100% = 45%

45% of the 80 marbles are blue.

plz help me fast Simplify t12/t6

Answers

Answer:

t^6

Step-by-step explanation:

when dividing exponents, you subtract (refer to exponent rule)

t^12 - t^6 = t^6

Two ice cream machines make a total of 320 gallons in a certain amount of time. working together for the same length of time how many gallons of ice-cream can each number of machines make?
(a) 7 ice-cream machines

Answers

Answer:

7 ice cream machines can make 1,120 gallons of ice cream

Step-by-step explanation:

Divide 320 by 2

multiply 160 by 7

you should get 1,120

7 ice-cream machines makes 1120 gallons of ice-cream.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, two ice cream machines make a total of 320 gallons in a certain amount of time.

Here, quantity of ice cream made by 1 machine =320/2

= 160 gallons

Now, 7 ice-cream machines makes

160×7= 1120 gallons

Therefore, 7 ice-cream machines makes 1120 gallons of ice-cream.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ2

Sweet Treats Bakery sells gourmet cookies. If three gourmet cookies cost $7.95, then
how much will it cost to buy 10 cookies?

Answers

Answer:

$26.50

Step-by-step explanation:

7.95/3=2.65

2.65*10=26.5

Answer:

$26.50

Step-by-step explanation:

If 3 cookies are 7.95, we can do 7.95/3 to find the cost of 1 cookie.

1 cookie is 7.95/3 = 2.65.

Now, we can find the cost of 10 cookies by simply multiplying 10 to the cost of 1 cookie, which is 2.65*10 = 26.5.

10 cookies will cost $26.50.

7. E(5, 4), F(8, 1) what is the slope of the line

Answers

Answer:

-1

Step-by-step explanation:

m = y2 - y1 / x2 - x1

= 1 - 4 / 8 - 5

= -3 / 3

= -1

Select the values that make the inequality h < 1 true.
(Numbers written in order from least to greatest going across.)

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H = 0 and all negative numbers

State what additional information is required in order to know that the triangles are congruent for the reason given. If possible, write the triangle congruence statement.

refer to attachment

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ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal. If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

Find the slope of the line graphed below. 21 points!

Answers

The answer is 3/2
3 units up and 2 units to the left that is the slope

Answer:

The answer is 1.5

Step-by-step explanation

First you want to find the rise. This is the amount of height between the two points (Y) and divide them over the run. This is amount of distance (X) between the points. This will be 6/4. Divide this and you have your answer!

Simplify the expression: 5+2a - (9+a)

Answers

Answer:

a - 4

Step-by-step explanation:

[tex]5+2a-(9+a)\\5+2a-9-a\\a-4[/tex]

Will give brainliest if right

Answers

Answer:

the answer is d to the problem

Ryan made a $3000 down payment on a car. The total cost of the car was $7500. He made 36 equal monthly payments to pay the car in full. How much did Ryan pay per month?

Answers

Answer:

$125 per month

Step-by-step explanation:

You have 400 euros. What is this amount in US dollars?
Help me pls i will mark the best answer brainlist

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Answer:

452.38 US dollars.

Step-by-step explanation:

I got 452.59 hope this helps

If Rebecca Picked 20 apples and gave away 10 and got 30 more back. How many does she have now?

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If she picked 20 apples and gave away 10, she would have 10 apples. But if she got 30 more apples, she would have 40 apples

Hope this helps!!! If so please give brainliest

Maki~

Answer:

40 apples

Step-by-step explanation:

20 apples-10 apples+30 apples=

10 apples+30 apples=40 apples

What is the sum of the first 12 terms in the series shown below?

1.5 - 4.5 + 13.5 - 10.5 +

Answers

0 i believe is the answer

PLEASE HELP!!!!! I NEED THE ANSWER SOON
Two systems of equations are shown:

System A System B

3x + 2y = 3 −x − 14y = 1

−2x − 8y = −1 −2x − 8y = −1

Which of the following statements is correct about the two systems of equations?

A.)The value of x for System B will be one-third of the value of x for System A because the coefficient of x in the first equation of System B is one third times the coefficient of x in the first equation of System A.

B.) The value of x for System A will be equal to the value of y for System B because the first equation of System B is obtained by adding −4 to the first equation of System A and the second equations are identical.

C.) They will have the same solution because they represent the same lines when plotted on the coordinate axes.

D.)They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.

Answers

C. They will have the same solution because they represent the same lines when plotted on the coordinate axes

. You want to buy a book worth Php 220.50. You can buy it only by making a sacrifice of not buying a soft drink every day. If soft drinks in your school cost Php15.75, how many days do you need to save before you can buy the book? * A. 13 B. 14 C. 15 D. 16

Answers

Answer:

B-14

Step-by-step explanation:

Divide 220.50 by 15.75 and you will get 14

Hope it can help you lovelots

A company that makes hair-care products had 8,000 people try a new shampoo. Of the 8,000 people, 16 had a mild allergic reaction. What percent of the people had a mild allergic reaction

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Answer:

0,2%

Step-by-step explanation:

16 / 8000 = 0,002

0,002 * 100 % = 0,2%

(2x-1) (x+3)
Expand

Answers

Answer:

2x^2+5x-3

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Solve for a
a + 4/5 = 1 1/2
Enter your answer as a fraction in simplest form in the box.

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Answer:

a=47/10

Step-by-step explanation:

whats the GCF of 77 and 55

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Answer:

GCF= 11

Step-by-step explanation:

Other Questions

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