1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
2 years ago
8

PLEASE PLEASE HELP PLEASE

Mathematics
1 answer:
kogti [31]2 years ago
3 0

Answer:

r = 6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

PR² = PQ² + QR² , substitute values

(r + 4)² = r² + 8²

r² + 8r + 16 = r² + 64 ( subtract r² from both sides )

8r + 16 = 64 ( subtract 16 from both sides )

8r = 48 ( divide both sides by 8 )

r = 6

You might be interested in
Someone please help I’m lost
luda_lava [24]
It’s because it’s intersecting so WXY and ZYX are congruent
4 0
2 years ago
Read 2 more answers
Find the values of x and y
Anastasy [175]

Answer:

X=20

Y=70

Step-by-step explanation:

All angles within a triangle add up to 180

180 - 40 = 140

140 is the top angle of the big triangle

140 + x + x = 180

x = 20

Now use x to find y by subtracting from the right angle (90 degrees)

90 - 20 = 70

70 + 40 + y = 180

Y = 70

8 0
3 years ago
A car traveled 240 miles in 3 hours. At this rate, how many miles will the car travel in 1/2 hour?
Levart [38]

The car will travel eighty miles in 1/2 hour

4 0
2 years ago
A construction worker bought several bottles of juice for three dollars at the convenient store. She paid for them with a $20 bi
Veronika [31]
20-3j=change she should receive.
5 0
3 years ago
X intercept f(x)=(x+4)^2
natali 33 [55]

Answer:

<h2>-4</h2>

Step-by-step explanation:

Given the function f(x)=(x+4)², <u>the x intercept occurs at f(x)  = 0,</u> substituting f(x) = 0 into the given equation to get the value of x we have;

0 = (x+4)^{2} \\

Taking the square root of both sides

\sqrt{(x+4})^{2}  = \sqrt{0}\\ x+4 = 0\\

Subtracting 4 from both sides of the equation

x+4-4 = 0-4\\x = -4

Therefore the x intercept of the equation is -4

4 0
3 years ago
Other questions:
  • Where do the graphs of the lines for the equations y = 4 and y = 5 intersect? (5, 4)?
    10·1 answer
  • Please help! asap! thank you so much! I have photos attached!
    5·1 answer
  • When compared with the independent variable, how many of the graphs represent a linear relationship?
    10·2 answers
  • The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16
    14·1 answer
  • A worm walks 40cm in 8 minutes. Give both unit rates. Make sure you include the unit for each.
    15·1 answer
  • You have a 10% off coupon for the paper towels that are 6.99. The tax rate is 8%. Find the discount amount and tax amount
    13·1 answer
  • Which point most closely represents V20 on the number line above?
    11·1 answer
  • 1 Minutes, 30 seconds
    15·2 answers
  • 6 mm<br> 13 mr<br> 12 mm<br> Surface Area:
    11·1 answer
  • Find the exact value of sin(255∘)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!