Mathematics High School

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Answers

Answer 1

Answer:

7.093 cm

Step-by-step explanation:

[tex]4.5^2+x^2=8.4^2[/tex]

[tex]20.25+x^2=70.56[/tex]

[tex]x^2=50.31[/tex]

[tex]\sqrt{50.31}= 7.093[/tex]

Related Questions

how do i find out decimal parts of money?

Answers

Answer:

A dollar is a whole amount and is written to the left of the decimal.

...

In 1 dollar there are 100 cents and we write them after a period:

1 cent of a dollar is written $0.01.

10 cents of a dollar is written $0.10.

1 dollar and 1 cent is written $1.01.

1 dollar and 10 cents is written $1.10.

Money Is a Special Decimal

All money is a decimal value with two places. You will see examples including $1.25, $65.98, and $26.34. No matter how big the value gets, you can only have two decimal places. One cent is 0.01.

Ted makes an hour delivering pizzas. if he gets a 5% raise, how much will he make delivering pizzas for 4 hours?

Answers

The amount Ted would make from delivering pizzas for 4 hours would be $42.

How much would Ted make?

The first step is to determine the increase in Ted's income after the raise: (1.05) x $10 = $10.50

The second step is to determine the total income for 4 hours of work: 10.50 x 4 = $42

Here is the complete question:Ted makes n$10 hour delivering pizzas. if he gets a 5% raise, how much will he make delivering pizzas for 4 hours?

To learn more about multiplication, please check: https://brainly.com/question/3385014

Suppose a city with population 300,000 has been growing at a rate of 8% per year. If this rate continues, find the population of this city in 10 years.

Answers

So the 8% of 100 is 8 & times it by 3 which is 24 then times it by 1000 which is 24000 so add it to the population, it will be 324000

Wayne designed the table shown below for an x-ray room. He wants to cover the shaded rectangular surfaces of the table, marked A, B and C, with a sheet of soft foam padding.

What is the total area of the 3 rectangular surfaces to be covered with foam padding?

Answers

The total surface area of surface 3 rectangular surfaces to be covered with foam padding is 36 ft²

What is an area?

The area is the amount of space occupied by a two dimensional shape or object.

Area of rectangle = length * width

Area of surface A = 1 ft * 4.5 ft = 4.5 ft²

Area of surface B = 0.5 ft * 4.5 ft = 2.25 ft²

Area of surface C = 6.5 ft * 4.5 ft = 29.25 ft²

Total area = 29.25 + 2.25 + 4.5 = 36 ft²

The total surface area of surface 3 rectangular surfaces to be covered with foam padding is 36 ft²

Find out more on area at: https://brainly.com/question/25292087

If the coordinates for C' are (4.5, 4.5), which rule best represents the dilation that was applied to rectangle ABCD to create rectangle A'B'C'D'?

Answers

The dilation of rectangle ABCD to create rectangle A'B'C'D' would change the size of the rectangle

The dilation rule is: (x,y) -> k(x,y)

How to determine the rule of dilation?

The coordinates of C' is given as:

C' = (4.5, 4.5)

The coordinate of point C is not given.

So, I will apply a general rule

The general rule of dilation is:

(x,y) -> k(x,y)

Where k represents the scale factor.

Assume that k = 3, the the rule would be
(x,y) -> 3(x,y)

Answers

Answer:

b because you add the 8 by 2 because 10 is too long and 8 is perfect size

What is the slope of the line in this graph? please help urgent

Answers

Answer:

(b) 5/7

Step-by-step explanation:

When determining slope from a graph, it is convenient to locate points on the graph where it crosses grid lines. This graph crosses the origin, and the point (7, 5). The slope is found by counting grid squares or by the slope formula ...

m = (y2 -y1)/(x2 -x1)

m = (5 -0) /(7 -0) = 5/7 . . . . . . . . . using points (0, 0) and (7, 5)

The slope of the line is 5/7.

6. A rectangular pyramid fits exactly on top of a rectangular prism. The prism has a length of 16 cm, a width of 6 cm, and a height of 8 cm. The pyramid has a height of 14 cm. Find the volume of the composite space figure.

Answers

Answer:

V = 682.66667

Step-by-step explanation:

Part A
Which angles are congruent to ∠5 ? Select all that apply.
∠1
∠2
∠3
∠4
∠6
∠7
Part B
I m∠6 = 85° what is the measure of ∠3?

m∠3 =
°

Answers

part a: 1,3,5,7

part b: i’m not sure

Please help, i will mark as brainliest

it is given that the volume of the paint, x litres, varies directly as the area of the wall, d m². if 3 litres of paints can paint 36 m² of wall, calculate the volume of the paint in litres, needed to paint a wall of 9 m in height and 5 m in width.

Answers

Answer:

3.75 L

Step-by-step explanation:

3 liters / 36 m^2 = x liters / 9 x 5 m^2

3 liters / 36 m^2 = x liters / 45 m^2

(45)(3) = (x)(36)

(135) = (x)(36)

x = (135)/(36)

x= 3.75 L

Which graph represents the solution set of this inequality?
- 11 - 20 > 1
Choose 1 answer:
-10-9-8-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
-10-9-8-7-6 -5 -4 -3 -2 -1 0 1 2 3 4 5
Help me

Answers

Answer:

It's C

Step-by-step explanation:

-11-2d is greater of equal to 1

add 11 to both sides to get

-2d is greater of equal to 12

divide -2 to both sides which flips the greater than sign to less than

getting d is less than or equal to -6

What percent of the utterances in the sample need to be 1 word in length in order to use Nelson's or Bloom's One-Word Utterance Analyses

Answers

The percent of the utterances in the sample need to be 1 word in length is 13.3%.

How to calculate the percentage?

Your information is incomplete. Therefore, an overview will be given. Let's assume that the number if 1 word is 12 and the total number of words given is 90.

Therefore, the percentage will be:

= 1 word/Total words × 100

= 12/90 × 100.

= 13.3%

In conclusion, the percentage is 13.3%.

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The scale of a model train is 1 inch to 16.48 feet. One of the cars of the model train is $6$ inches long. What is the length, in feet, of the actual train car? Round to the nearest whole number.

Answers

Answer:

The scale of a model train is 1 inch to 13.5 feet. One of the cars of the model train is 5 inches long. What is the length, in feet, of the actual train car?

Algebra

Step-by-step explanation:

A robot can complete 7 tasks in 2/3
hour. What is the unit rate for hours per task

Answers

Answer:

2/21 hours per task.

Step-by-step explanation:

2/3 / 7 hours per task

= 2/21.

please help!!! I need this and I also don't understand

Answers

Answer:

ABGE is a parallelogram because it has congruent sides

Step-by-step explanation:

:-)

Find two numbers whose product is 3 and the sum of whose reciprocals is 76/15

Answers

Answer:

xy=3_equation I

x+y=76/15 eq 2

Step-by-step explanation:

from eq

x=3/y

now put x=3/y in eq 2

3/y+y=76/15

(3+y^2) 15=76y

45+15y^2=76y

15y^2-76y+45=0

by using quardic equation

x=76+_root under 76^2-4×15×45/2×15

y= 5776+- 53.62/2×15

taking positive sign and taking negative sign

y=194.32

y=190.745

jenny has $25 and she earns $10 for each lawn that she mows. jenny wants to buy a concert ticket that costs $65

enter the minimum number of lawns jenny needs to mow to be able to buy the concert ticket

Answers

the minimum number of lawns she needs to mow is 4

A spinner has 12 equal-sized sections. Nine of the sections are red. a. What is the probability that the spinner will land on red? b. Use words to describe the probability. a. out of 12, or /4 or _% .

Answers

Answer:

9out of 12, 3/4, 75%

Step-by-step explanation:

Red makes up 3 quarters of the spinner, or 9 parts out of 12.

What is the prime factorization of 42?
I think it would be 2x3x7.

Answers

Answer:

2 x 3 x 7

Step-by-step explanation:

How to find Prime Factorization of 42? Prime factorization of a number is breaking that number down into the set of prime numbers which multiplied together is equal to the original number So great job you already knew the answer

Answer:

I think it is 2 x 3 x 7. 2 x 3 x 7 = 42 2 x 3 x 7

Step-by-step explanation:

2 x 3 x 7. 2 x 3 x 7 = 42 2 x 3 x 7 = 42 hope this helps if not please let me know

help me please quick!!!

Answers

Answer:

y is 12 degrees

x is 30 degrees

Step-by-step explanation:

If angle ABC is equal to angle MNC, that means 5y equals to 60 degrees. 60 divided by 5 equals 12. So, y equals 12 degrees

2x and 4x equals 180 degrees. So, 180 divided by 6 equals to 30. So x equals 30 degrees

Answer:

x = 30, y = 12

Step-by-step explanation:

2 similar equilateral triangles, each corner is 60 degrees.

2x = 60 degrees

divide by 2

x = 30 degrees

5y = 60 degrees

divide by 5

y = 12 degrees

This can be verified by checking 4x + 2x which gives you 180 degrees forming that straight line angle.

Alex is putting 7 pounds of strawberries in containers. Each container holds 1/3 of a pound. How many containers will he use?

5th grade question
Please answer as soon as u see

Answers

Answer:

Step-by-step explanation:

7 x 3 is 21 you carry the 21 down 21/3=7

There you go!

Consider these scenarios.

1. An elephant weighs 1.5 × 104 units.

2. A mouse weighs 2.13 × 10-5 units.

3. A puppy weighs 1.2 × 102 units.

Determine the unit of measurement that best represents each scenario.

1.

2.

3.

Answers

1. Pounds

2. Tons

3. Ounces

You guys have a good day :)

Answer:

1.pounds

2.tons

3.ounces

Step-by-step explanation:

just got it right on edge

You MUST show your working out!

Answers

Answer:

100.32

Step-by-step explanation:

First, we have to find 14% of 88
14% of 88 is = 88 x 14/100
= 12.32

Now we have to increase the number 88 by 14%, which means we have to add 14% of 88 (12.32) to the given number (88)

88 + (14% of 88)

= 88 + 12.32

=100.32

Rectangles T and U are similar. If the area of rectangle T is 40, what is the area of
rectangle U?
10
4.5
Rectangle
T
Rectangle
U
Area = 40

Answers

Answer:

Area = 18

Step-by-step explanation:

Since the triangles are similar, we can set up a proportion of 10/4.5 = 40/x. The sides on top, with length 10 and 4.5, are similar. This ratio can then be applied to the areas, with the area of rectangle T in the numerator and the area of rectangle U in the denominator, giving us 40/x. To solve for x, we can multiply 40 by 4.5 and then divide the product by 10. This gives us 18, the area of rectangle U.

12. In a poll taken in March of 2007, Gallup asked 1006 national adults whether they were
baseball fans. 36% said they were. A year previously 37% of a smaller sample had
reported being baseball fans.
a. Find and interpret a 90% confidence interval for the 2007 poll.
b. Would the margin of error be larger or smaller for a 99% confidence interval?
C. Find and interpret a 98% confidence interval.

Answers

The margin of error of the 90% confidence interval will be 0.024 and it increases when there's a higher confidence interval.

How to calculate the confidence interval?

The margin of error of the 99% confidence interval will be:

= 1.645 × [✓0.36(1 - 0.36)/1006

= 0.024

The margin of error for a 99% confidence interval will be calculated thus:

= 2.576 × [✓0.36(1 - 0.36)/1006

= 0.03898

This implies that margin error increases when there's a higher confidence interval.

Learn more about confidence interval on:

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Select the correct solution for the expression.

2
5
+
3
8
A.
2
5
+
3
8
=
5
13
B.
16
40
+
15
40
=
31
40
C.
10
40
+
24
40
=
34
40
D.
2
5
+
3
8
=
6
40
if youre a connexus student and you know the answers to add and subtract fractions please tell me

Answers

Answer:

I think the answer is 6/40

Step-by-step explanation:

Please help me this is hard and its due today!

Answers

Answer: A, C and E.

Step-by-step explanation: They all equal to 5.

Which expression should you simplify to find the 90% confidence interval,
given a sample of 65 people with a sample proportion of 0.42?
O A. 0.42
1.645-0.42
165
OB. 0.42 65
0.42(1–0.42
1.645
O c. 0.42 +1.645.
0.42(1-0.42)
65
O D. 0.42 +1.645.
V0.42(1–0.42)
65

Answers

Answer:

i think is would be D

hope that helps if not i can change it

Step-by-step explanation:

A rectangular cracker has a length of 5 centimeters and an area f 20 square centimeters. Find its perimeter.

Answers

Answer:

18cm

Step-by-step explanation:

We have the length of the rectangle but we need to find the width which we'll call w. Area is a, l is length.

a = l * w

20 = 5 * w

divide both sides by 5 to cancel the multiplication by 5 on the right side

4 = w

The rectangle is going to have two sides that are the length of l, and two sides that are the the length of w. We're looking for the perimiter p.

p = 2l + 2w

p = (2 * 5) + (2 * 4)

p = 18

2x² + 3x - 1 =0 by make quadratic equation

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

1/2

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SOMEONE PLEASE HELP ME WITH THIS!! IMAGE DOWN BELOW!! ILL GIVE YOU BRAINLIST ANSWER!!

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SOMEONE PLEASE HELP ME WITH THIS!!
IMAGE DOWN BELOW!!
ILL GIVE YOU BRAINLIST ANSWER!!