Mathematics Middle School

Find the length of the missing side in the figure below. a = _______ cm.
a right triangle with short side labelled a, long side labeled 4.7 cm and hypotenuse labelled 7.1 cm. PLEEZE! IM DESPERATE!

Answers

Answer 1

Answer:

[tex] \frac{2 \sqrt{177} }{5} [/tex]

or

5.32cm correct to 2 decimal places

Step-by-step explanation:

This is a right angled triangle from what I know so we have to apply pythagoras theorem.

[tex] {7.1}^{2} = {a}^{2} + {4.7}^{2} [/tex]

we need to rearrange this to find a²

[tex] {a}^{2} = {7.1}^{2} - {4.7}^{2} [/tex]

[tex]a = \sqrt{ \frac{708}{25} } [/tex]

This can either be written as a fraction or decimal.

[tex]a = \frac{2 \sqrt{177} }{5} [/tex]

OR

[tex]a = 5.32[/tex]

correct to 2 decimal places

Related Questions

PLEASE HELP I NEED ANSWERS NOW AND I WILL MARK YOUR ANSWER BRAINLIEST IF IT IS CORRECT
Step 2: Using proportional relationships
You are traveling by car to New York City. The map you will use for your journey is below.
a) What is the scale factor on the map? (1 point)
b) What is the approximate distance from Chicago to New York City? Use a proportional relationship to solve the problem. Show your work. (2 points)
c) What is the approximate distance from Denver to Chicago? Use a proportional relationship to solve the problem. Show your work. (2 points)
d) You plan to begin your journey in San Jose and make stops in Denver and Chicago on your way to New York City. Your father says that your journey will be about 3,000 miles. Is this a close estimation of the distance? Explain your reasoning. (2 points)

Answers

Answer:

What is the approximate distance from Denver to Chicago? Use a proportional relationship to solve the problem.

Using proportional relationships You are traveling by car to New York City. The map you will use for your journey is below.

Step-by-step explanation:

Triangle XYZ is an isosceles triangle with XY = ZY. Complete each of these statements.

m∠X

=°

m∠Y
=°

Answers

Answer: 7

Step-by-step explanation: XZ ⊥ XY

XZ = XY = 5

The slope of XZ is , the slope of XY is , and XZ = XY = 5.

The slope of XZ is , the slope of XY is , and the slope of ZY = 7.

Answer:

Step-by-step explanation:

In need this quickly

Answers

Answer:

are there any other pieces to this problem?

Shannon bought a used toy sailboat at a resale store for $8. She spent $4 on materials to replace the sails and repaint the sailboat. Shannon sold the toy sailboat for $20. Which is the percentage of profit Shannon made on the sale of the toy sailboat?

Answers

Answer:

66.6

Step-by-step explanation:

hope this helps

First and original answer:

She bought it for $8, spent $4 on refurbishing the toy so $12, then sold it for $20. The profit is a whopping 66.6% percentage

Brad used the formula to find the distance in miles, d, he was from a stroke of lightning. In the formula, n is the number of seconds that have elapsed between seeing the lightning and hearing the thunder. How far away was Brad from the lightning if 30 seconds elapsed between Brad seeing the lightning and hearing the thunder?

Answers

Answer:

10 seconds

Step-by-step explanation:

using the formula we can see that since 30 seconds have passed we divide this by 3 to get 10.

Therefore  the answer is 10 seconds

please rate brainleist.

Angie works in a pet store. She needs to divide 36 angelfish, 42 rainbow fish, and 126 goldfish into aquariums so that each aquarium has the same number of each type of fish, and there are no fish left over. What is the greatest number of aquariums Angie can fill under these conditions?

Answers

Answer: GCF = 6 aquariums

Step-by-step explanation:

Find the value of the equation

Answers

Answer:

5/12.5 = 8/p

Step-by-step explanation:

There is 5 pictures in 12.5 hours

How many can he paint in 8 hours

8=HOURS

P=AMOUNT

Complete the equation for this model.

Answers

Answer:

(-18) + (-2) = -20

Step-by-step explanation:

arrow is moving from -18 to -20.

A pair of equations is shown below:

y = 7x − 8
y = 5x − 2

Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution.

Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer

Answers

Answer:

Part A) If would probably be smart to use substitution because y is already solved for, so we can substitute the value of y as a function of x into the other equation.

y=7x-8

y=5x-2

7x-8=5x-2

   +8     +8

-----------------

7x=5x+6

-5x  -5x

----------------

2x=6

/2   /2

-----------

x=3

y=7x-8

y=21-8

y=13

Part B) The lines will intersect at point (3, 13)

Step-by-step explanation:

hope this helps

so sorry if this is wrong

did this for hw

Answer:

Step-by-step explanation:

part a:

substitution

7x - 8 = 5x - 2

2x - 8 = -2

2x = 6

x = 3

y = 7(3) - 8 = 21 - 8 = 13

y = 13

Part b.

(3, 13)

Please help!!!!!!!!!

Answers

Answer:

-------12--------------22------------

Step-by-step explanation:

[tex]\sqrt{144}[/tex] = 12

[tex]\sqrt{100}[/tex] = 10

10+12

Which number is equivalent to 34/32? And how you found the answer.

A. 2
B. 9
C. 81
D. 729

Answers

C 81 I took the test

How many milliliters are equal to 6.189 liters?

61.89 milliliters
6,189 milliliters
61,890 milliliters
618.9 milliliters

Answers

Answer:

6,189 milliliters

Step-by-step explanation:

conversion by multipling the liters by 1000

Simplify the expression.

Answers

Answer:

x over6_14

Step-by-step explanation:

first you will collect like terms by taking-1 over3+1x over2_12_2

Calculate the volume of the following figure.

26 units3
25 units3
27 units3
24 units3

Answers

Answer:

24 units

Step-by-step explanation:

The way to find the volume is to multiply all of the dimesnions. The dimensions are 2, 3, and 4. 2 x 3 = 6. 6 x 4 = 24.

24 units 4 *3*2*4 as you multiply use
Pemdas to break down the answer

HELP PLEASE ASPAPP EEEEEEEEE

Answers

1/4 x 1/2 = 1/8

1/4 = the chance of getting m
1/2 = the chance of getting tails

Answer:

the answer is D

Step-by-step explanation:

pls give brainlist

Which quadrilateral makes this statement true?

Quadrilateral ABCD ≅ _____

PLEASE HELP!

Answers

Answer:

C.

Step-by-step explanation:

WXYZ is opposite of ABCD. If I'm wrong, in my defense, I haven't done quadrilaterals in a while.

Answer:

B is the correct answer

Step-by-step explanation:

What is the area of the triangle?

Answers

Answer:

I'm pretty sure is 45

Step-by-step explanation:

6 x 15 = 90

90 ÷ 2 = 45

To find the are of a triangle you do
(Base x height) ÷ 2

6 x 5 = 30

30 ÷ 2 = 15

The base is 6 height is 5. Then divide that by 2.

100 POINTS AND BRAINLY NO LINKS What is the length of the line segment with endpoints (−3, −8) and (10, −8) ?

Answers

Answer:

13 units

given two points: (−3, −8) and (10, −8)

As the y coordinates are same.

use the method:

|x2| + |x1|  where  (x1, y1), (x2, y2)

Solve:

|10| + |-3|

10 + 3

13

Answer:

10 units

Step-by-step explanation:

[tex](x_1,y_1)=(-3,-8)[/tex]

[tex](x_2,y_2)=(10,-8)[/tex]

We are supposed to find the length of the line segment with endpoints (−3,8) and (7, 8)

We will use distance formula : [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Substitute the values :

[tex]d=\sqrt{(10+3)^2+(8-8)^2}[/tex]

[tex]d=\sqrt{100}[/tex]

[tex]d=10[/tex]

Hence the length of the line segment with endpoints (−3,8) and (7, 8) is 10 units

HELP ME!!!!!!!!!!!....

Answers

Answer:

12

Step-by-step explanation:

a=ab/2

Area=3 times 4/2= 6

but there are 2 traingles so 6 times 2= 12

15 ! because if you made that triangle a rectangle the length would b 8 and hight would b five 8x5 is forty and bc its a triangle you split it in half so 40 devided by 2 is 15

PLEASE SOLVE SURFACE AREA
WILL GIVE BRANLIEST

Answers

Answer:

16 units^2

Step-by-step explanation:

The surface area of a square pyramid is comprised of the area of its square base and the area of each of its four triangular faces. Given height h and edge length a, the surface area can be calculated

16 units ^2 that’s your answer

Unit: Rational Number Operations Review

A spool with 18 feet of ribbon will be cut into 8-inch segments. How many 8-inch segments can be cut from the spool of ribbon?

Answers

27 Pieces

Explanation: 1 feet = 12 Inches… So take 12 inches and multiply by 18 and you get 216 then divide by 8 and you get 27.

Answer:

27

Step-by-step explanation:

Pls help with math I realy need help

Answers

Answer:  803.84

Step-by-step explanation: pi * r^2 * height

Answer:

803.84

Step-by-step explanation:

because its pi x r² x height

in this case the radius is 4 because the diameter is 8 and half would be 4 so its 4² which is 16 and the height is 16 and you mulitply pi which is 3.14 so 16 x 16 x 3.14= 803.84cm

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Thank you and have a good day

What is the solution to this number sentence? y+ 3 1/3=8

Answers

you would subtract 3 1/3 from both sides to get y= 8- 3 1/3. then you would solve so y= 4 2/3
I agree with Potato2299. Y = 4 2/3

Simplify!! Giving brainliest

15+8x-3x
6y-2b+10y+5b-1
3(8x+4y+2x)

Answers

1) 15+5x
2)-4y+7b-1
3) 30x+12y

PLEAS HELP ME!!!!!!!

Answers

Answer:

-6

Step-by-step explanation:

it’s -6 ! just count the marks from -3 and you’ll get -6 !

Simplify Negative 3 over 2 divided by 9 over 6.

Answers

Answer:

B. -1

Step-by-step explanation:

9/-3 = -3

6/2 = 3

-3/3 = -1.

Hope this helps!

Answer:

-1

Step-by-step explanation:

-3/2 ÷ 9/6

Copy dot flip

-3/2 * 6/9

Multiply

-18/18

-1

I need help please!!!!!!

Answers

B because you’re buying 3 tacos, so 3x, and if you add up the price of 2 cheese, 2 lettuce, and 1 sour cream you get 1.25 so it’s 3x+1.25

please please please help! 1st answer gets brainliest


The line plot shows the weight (in tons) of five different pallets of ball bearings. What is the difference between the largest and smallest pallet of ball bearings?


x

x x x x

_______________

1/5 2/5 3/5 4/5 5/5
( 1/5 = 2 pallets, 25 = 1 pallet, 3/5 = 1 pallet, 4/5 = 1 pallet, 5/5 = 0 pallets )

1 x = 1 pallet


A) 1 5 tons

B) 2 5 tons

C) 3 5 tons

D) 4 5 tons

Answers

Answer:

B) 2 5 tons

Step-by-step explanation:

Edge 2022

Water flows through a pipe at a rate of 88 cubic feet per year. Express this rate of flow in pints per day. Round your answer to the nearest tenth.

Answers

Answer:

5367 pints a day through that pipe

Step-by-step explanation:

you do 88 cubic feet converted to pints is 5266 nearest tenth is 5367 done

5367 pints per day bc ya lolz

I need help finding which angles are supplementary to eachother

Answers

Answer:

ICJ and ECI

hope this helped

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