A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR?
pythagorus theorem

Answers

Answer 1

Answer:

Solution given:

A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm

and

base[b]PR=60cm.

perpendicular [P]= QR

by using Pythagoras law

=+

80²=QR²+60²

QR²=80²-60²

QR=[tex]\sqrt{2800}[/tex]

QR=20[tex]\sqrt{7}[/tex]=52.9=53cm

QR=53cm.


Related Questions

Kiran’s aunt is 17 years older than Kiran. How old will Kiran’s aunt be when Kiran is 15 years old?

Answers

Answer:

32

Step-by-step explanation:

15+17=32

...........

Answer:

32

Explanation:

All you have to do it add 17 to 15, since the aunt is 17 more years older than kiran.

need to find lateral area but i don’t know how.Please help

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Answer: 37.69911184

Step-by-step explanation: π(4)(3) = 12π = 37.69911184

Work out the value of 3.1^4

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Answer: It's 92.3521 Hope that helps Goodbye!

Step-by-step explanation: 3.1×3.1= 9.61× 3.1= 29.791 ×3.1 = 92.3521 because it's the power to 4 3.1×3.1×3.1×3.1 so that telling you to multiply 3.1 four times. Can you please make me Brainliest

A playground has two sandboxes. Each sandbox is in the shape of a right prism. The first sandbox has a square base with a side length of 8 feet. What is the area, in square feet, of the base of the first sandbox? Show or explain how you got your answer. Help

Answers

Answer:

64 ft²

Step-by-step explanation:

A prism is a three dimensional shape with two identical shapes facing each other known as bases. A right prism is a three dimensional solid with a polygon as its base and vertical sides which are perpendicular to the base.

Given that the first sandbox is a right prism a square base, hence this is a square prism (that is a cube).

Since the side length of the square base is 8 ft, hence the area of the base of the first sandbox is:

Area of the base = length * length = 8 ft * 8 ft = 64 ft²

Of six Kokomuka (Hebe Elliptica) seedlings, four have survived the winter.



What percentage of the seedlings survived?

Answers

Answer:

66.7%

Step-by-step explanation:

The number of seedlings planted is 6, while the number of seedlings that survived the winter is 4. Therefore the percentage of seedlings that survived can be gotten using the formula:

Percentage of seedlings survived = (survived seedlings / total seedlings planted) * 100%

Therefore substituting values gives:

Percentage of seedlings survived = (4 / 6) * 100% = 66.7%

NEED ANSWER ASAP
The point A(7,-8) is reflected over the point (4, -5) and its image is point B. What are the coordinates of point B?​

Answers

Answer:

point B (1 , -2)

Step-by-step explanation:

__________________

(-1,11) reflected over the y axis
(-3,-9) reflected over the y axis
(2, -7 reflected over the y axis

Answers

Answer:

See explanation

Step-by-step explanation:

Reflecting over the y axis does not change the Y value. It multiplies the x value by -1.

So (-1,11) is (1,11)

And (-3,-9) would become (3,-9)

And (2,-7) would become (-2,-7)

answer choices 72 76 86 65

Answers

j + h + g= 360
125+149+g=360
g=86
not sure if that’s what you’re looking for but hope that helps

what are the solutions to x^2- 3x -28= 0? select all that apply
A. x = -14
B. x = -7
C. x= -4
D x = -2
E x= 2
F x= 4
G x= 7
H x= 14

Answers

Answer:

(x +7) (x -4)

x=-7 or x= 4

Step-by-step explanation:

(x +7) (x -4)

x=-7 or x= 4

READ THE IMAGE WILL GIVE BRIANLIENSTAINERSTALIN
Question 5 options:

9


5


3


12

Answers

please mark brainliest

What is the time difference between 11:05 and 12:10?

Answers

Step-by-step explanation:

the time difference between 11:05 and 12:10 is 1hour 5minutes

Answer:

12

36'7;"&$',7:&7#&"^$//&

Pls pls help!!! What is the y-intercept of this quadratic?

Answers

Answer:

(0, 8)

Step-by-step explanation:

The y-intercept is where the line/point crosses the y-axis, the line can cross more than once.

A circle of radius 1 is inside a circle of radius 5. The smaller circle is rotated clockwise
on the larger circle without slipping until it arrives back at its starting point P. How
many revolutions (turns) will the small circle make? Be careful. The answer is not 5.





Answers

9514 1404 393

Answer:

  4

Step-by-step explanation:

Consider the arcs PQ and P'Q. When turns are made without slipping, these have the same measure. The length of arc PQ is ...

  PQ = CP·θ

The length of arc P'Q is ...

  P'Q = O₂Q·(∠PO₂Q)

Segment O₂A is parallel to CP, so angle AO₂Q is θ. Then ∠PO₂Q = θ+α, where α is the angle by which P' has rotated counterclockwise from A.

We are given that ...

  CP = 5, O₂Q = 1

Using the above relations, we can write ...

  5θ = 1(θ+α)

  α = 4θ

That is, for every full turn θ = 2π, the smaller circle makes turns totalling 4(2π) = 8π, or 4 full turns.

The small circle makes 4 revolutions to arrive at its starting point.

What is 45 quarts= ___ cups​

Answers

Answer:

180

Step-by-step explanation: You could of looked it up I did

what is an equation in point slope form of the line that passes through (-5, -4) and has a slope of 3

Answers

Answer:

y + 4 = 3(x + 5)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 3 and (a, b) = (- 5, - 4) , then

y - (- 4) = 3(x - (- 5) ) , that is

y + 4 = 3(x + 5)

Hi there! The point-slope is shown in the picture.

Both x1 and y1 are the ordered pairs or coordinate points. Not to be confused with the x and y, they are just for to form an equation of a line.

As we know, m is defined as slope.

What we have now are:

the value of slope (m = 3)(x1, y1) = (-5,-4)Point-Slope equation

Substitute the value of the point and slope in the equation.

[tex] \large{y - ( - 4) = 3(x - ( - 5))} \\ \large{y + 4 = 3(x + 5)}[/tex]

Answer

The point-slope form for this question is y+4=3(x+5)

HELP ME PLEASE MARK BRAINLIEST

Answers

Answer:

Carole's situation :   2x + 11y = 196

Michele's situation:  10x + 11y = 276

Step-by-step explanation:

If x = cost of 1 cupcake, then 2x = cost of 2 cupcakes and 10x = cost of 10 cupcakes, et.

If y = cost of 1 sugar cookie, then 11y = cost of 11 sugar cookies.

Carole's situation :   2x + 11y = 196

Michele's situation:  10x + 11y = 276

Which of these is NOT an example of flood control?

Group of answer choices

Building your house next to a river

Building a dam

Having levees in the ocean

Creating storm drains on a street




What can humans do to help stop beach erosion?
Group of answer choices

Beach restoration by pumping sand from the ocean

Stop visiting the beach

Rinse off when leaving the beach

Not allow animals to live on the beach

Answers

Answer:

For number one the answer is A and the second answer is A too.

Step-by-step explanation:

Answer: Building your house next to a river and Beach restoration by pumping sand from the ocean (While this does not prevent erosion, it can reduce storm damage to coastal development & infrastructure.)

Step-by-step explanation:

please help!!!!!! i will mark brainliest!

Answers

Answer:

d

Step-by-step explanation:

if anyone could just look at my recent question pls its super easy its just simplyfing

Answers

Answer: K

Step-by-step explanation:

Ill do it

Solve the inequalities. -3y> 36​

Answers

the answer to this is y<-12

Answer:

y<-12

Step-by-step explanation:

-3y>36 divide both sides of the inequality by -3 and flip the inequality sign

-3y÷(-3)<36÷(-3) any expression divided by itself equals 1

y<36÷(-3) which equals to y<-12

Plz help need it’s down now

Answers

Answer:

A. is Inverse correlation and B. is More money

Step-by-step explanation:

A. the relationship is inverse, which means that the more weeks had past, the less he spent

B. Since he is spending less money each week and he earns the same amount, this means that he is saving more money

can someone help me with this problem ​

Answers

Answer:

x = 3

Step-by-step explanation:

5(5 + 19) = 6(6 + 4x + 2)

5(24) = 36 + 24x + 12

120 = 48 + 24x

72 = 24x

x = 3

A circle has a diameter of 28m. What is its circumference? Use 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.​

Answers

Answer: 87.92

Multiply 3.14 x 28

Answer:

87.92

Step-by-step explanation

you times 28 and 3.14

Or you can use this step 28 divided by 2 = 19x3.14=59.66x2=87.92

I hope that helps

Darnell ran 550 yards in 3 minutes. At this rate, how many yards can he run in 6 minutes?​

Answers

Answer:

Darnell can run 1100 yards in 6 minutes

Step-by-step explanation:

There are 2 ways you can solve this

Method 1: You would have to divide 550 by 3 which you would get about 183, (the exact answer is very long so I recommend using a calculator). Then you multiply that by 6 to get 1100.

Method 2: This one would probably be easier. Since 3 x 2 is 6 then you can multiply 550 x 2 to get 1100.

I hope this helps!

Answer:

1100 yards

Step-by-step explanation:

Write it as an equation

550/3 = x/6

Cross multiply :

550 * 6 = 3x

3300 = 3x

x = 1100

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Look at the picture. Solve for y

Answers

Answer:

y = 5

Step-by-step explanation:

Equation:

m<DGF = m<DGE + m<EGF

Given:

m<DGF = 12y - 5

m<DGE = 5y + 6

m<EGF = 24

Work:

m<DGF = m<DGE + m<EGF

12y - 5 = 5y + 6 + 24

12y - 5 = 5y + 30

12y - 5y = 30 + 5

7y = 35

y = 5

please help!! 40 points . if you guess or just comment to take points i will make sure your account gets banned, thanks! i want a small simple explanation.

Answers

Answer:

1) m<DBE= 140

2)m<EBD= 30

Step-by-step explanation:

1) 5x-60= x+20

4x= 80

x= 20

plug in the x into the equation: (x+20)---> (20+20)=40

180-40= 140

2) 4x-2+20x-10= 180

24x= 192

x=8

plug in the x into the equation: (4x-2)----> 4(8)-2----> 32-2= 30

3) im not sure

4) im not sure

Answer: did you see my answer on the second page?

Step-by-step explanation: IM SORRY PLEASE DONT BAN ME

Simplify √27x². I know the answer is 3x√3, but my teacher wants me to show how I solved it and i dont know how...please help.

Answers

Answer:

[tex]3\sqrt{3}x[/tex]

Step-by-step explanation:

Expand √27x² in such a way that it is the :-

Product of at either two or more perfect square numbers or,Product of two or more numbers out of which one (or more) is a perfect square number.

So ,

[tex]\sqrt{27x^2} = \sqrt{9 \times 3 \times x^2}= 3 \times \sqrt{3} \times x = 3\sqrt{3}x[/tex]

Need the answer please help

Answers

the answer is -7, -5 its the answer check it

Write the regression line equation for the following data.
X 43 21
25 42 57 59 33

Y 99 65 79 75 87 81
92
A) 0.53x - 3.58
B) 0.31x + 70.21
70.21 +0.31%
D) -3.58 +0.53x

Answers

Answer:

B) y = 0.31x + 70.21

Step-by-step explanation:

Put the data into 2 lists and use the LinReg feature on the TI-84 to get your regression equation.

What dose y and x equal

Answers

X equals -2

Y equals 5
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