In the figure to the right, if AC = 21 and BC = 18, what is the
radius?
Answers
Triangle is missing, so i have attached it.
Answer:
Radius = 10.82
Step-by-step explanation:
From the image attached, the triangle is obviously a right angle triangle and therefore, the missing side (AB) which is the radius can be found via pythagoras theorem.
We are given;
AC = 21
BC = 18
Thus;
|AC|² = |AB|² + |BC|²
21² = |AB|² + 18²
|AB|² = 441 - 324
AB = √117
AB = 10.82
Answer: The answer is 10.8 mathxl/pearson2022
Related Questions
If f(x)= 9x^2+2x-3, find f(-1).
Answers
Answer:
f(-1)= 4
Step-by-step explanation:
Just plug -1 into all Xs
and split it into 2 seperate problems for the time being
[9 times (-1)^2] + [2(-1)-3]
-1 squared is positive 1 times the 9 is just 9
Plus 2 times -1 is -2 minus 3 is -5
combine the two seperate problems you have
9-5 the subtract and
f(-1)= 4
0.25(4x - 4) = 2x + 1
Answers
Answer:
x=-2
Step-by-step explanation:
Find the total surface area of this cone.
Leave your answer in terms of .
15 cm
78 cm
SA = [ ? 17 cm?
Answers
Answer:
SA = 200π cm²
Step-by-step explanation:
The slant height l is the hypotenuse of the right triangle inside the cone
The triangle is an 8- 15- 17 ( Pythagorean triple ) with l = 17
Then
SA = πrl + πr²
=(π × 8 × 17) + (π × 8²)
= 136π + 64π
= 200π cm²
Answer:
in the right angle triangle,
p=15cm
b=8cm
[tex]h = \sqrt{15 {}^{2} + 8 {}^{2} } \\ = \sqrt{125 + 64} \\ = \sqrt{289} \\ = 17cm \\ sa = \pi \: rl + b \\ = \pi \: 8 \times 17 + \pi \: r {}^{2} \\ = 136\pi + 64\pi \\ = 200\pi[/tex]
Will yall help me please help me i will help ya´ll whenever ya´ll need points just ask something or i will make things where i will get ya´ll some points just will help me on this quiestion..?
Answers
What shape is figure b?
Figure A is a cone and figure B is a cylinder.
cylinder
sphere
cone
pyramid
Answers
Answer:
Cylinder
Step-by-step explanation:
Figure b is cylinder.
Answer:
sphere
Step-by-step explanation:
Can someone plz help
Answers
Answer:
x=43
Step-by-step explanation:
Answer:
x = 34°
Step-by-step explanation:
(x + 7) + (63° + (2x + 8) = 180°
combine like terms:
3x + 78° = 180°
subtract 78 from each side of the equation:
3x = 102°
divide both sides by 3:
x = 34°
Evaluate the expression for
c = 3 and d = -1
cd2
Answers
Answer: 3
Step-by-step explanation:
3(-1)^2
Answer: 3
Step-by-step explanation:
hope this helps
An airplane descends 2.7 miles to an elevation of 8.35 miles. Find the elevation of the plane before its descent.
Answers
You would add these two numbers to find what the started at because the inverse of subtraction is addition.
Area of circle with 7.1km rounded to the nearest tenth
Answers
Answer:
I'm pretty sure it's just 7.0 because seven is the nearest 10th because it's only .1
i need help i literally don't understand this at all and the teacher doesn't explain the assignment at all.
Answers
Answer:
2) 67.8°
3) 46.8°
4) 56.0°
Step-by-step explanation:
Use the right triangle trig functions
sine, cosine, or tangent and take the inverses to find the angle
You can buy 3 apples at the Quick Market for $1.05. You can buy 5 apples at
Stop and Save for $2.25. Which place is the better buy (best money value)?
Show work please:)
Answers
The value of Tonya's car is $21,000. The car's value depreciates at a rate of 15% per year.
Which function represents the value of the car after t years?
O f(t) = 1.15(21,000)
O f(t) = 21,000(1.15)
O f(t)21,000(0.85)
O f(t) = 0.85(21,000)
Answers
Answer:
f(t) = 0.85(21,000)
Step-by-step explanation:
100% - 15% = 85% 0r in decimal form 0.85
0.85 x the original pricen 21,000
Answer:
the answer for this question is: f(t)=21,000(0.85)^t
Step-by-step explanation:
well since its asking what function represents the value, you have to convert the 15 percent into a decimal. so when you put the equation together you can see its 0.85.
hope it helps! :)
Which of these expressions is equivalent to −2(x−5) ?
Multiple choice question.
A)
−2x−5
B)
−2x+5
C)
−2x+10
D)
−2x−10
Plzs Help I give someone a brainliest
Answers
Answer:
C.
Step-by-step explanation:
-2(x - 5)
= -2*x - 2*-5
= -2x + 10.
I need help ASAP!
Please help me!!
Answers
2) y axis is the line that goes vertically
3) origin is (0,0)
4) A is the dot that is height is the middle. B is the highest dot. C is the lowest dot
5) (4,6)
6) (2,9)
7) (0,4)
8) the correct ordered pair is (7,3) because it is (x,y) and allie switched between the two
1. The X axis is the line going left and right
2. The Y axis is the line going up and down
3. The origin is the point where the X and Y axis meet; (0,0); by the 0
4. The points will be written as A, B, C. This is going from left to right. So the first box on the coordinate plane furthest to the left with be labeled with A. Then the second box furthest from the left; the middle box; will be labeled with B. Then the last box will be labeled C
5. (4,6)
6. (2,9)
7. (0,4)
8. When Allie identified the point, she mixed the X and Y coordinates. To identify a point you first want to find the point following the X axis. Then do the same with the Y axis. After doing this you should have 2 numbers, in which are 3 and 7. Now when writing the coordinates, the X axis ALWAYS comes first. So it should look like (7,3)
ABC is isosceles.
m < a = 3x + 40 and m < c = x + 50
what is m < a ??
Answers
Answer:
55°Step-by-step explanation:
It is assumed the angles A and C are congruent:
3x + 40 = x + 503x - x = 50 - 402x = 10x = 5m∠A = 3*5 + 40 = 55°
Answer:
solution given:
m<a=m<c
3x+40=x+50
3x-x=50-40
x=10/2=5
now
<a=3×5+40=55°
m<a=55° is your answer
helpppppppp pleaseeeeee
Answers
Answer:
7a + b - 16c
Step-by-step explanation:
So we have
7a-3b+c-8c+4b-9c
When it comes to problem like these, you need to combine like terms.
There's only one 'a' number, so that one remains the same.
Next, we have -3b and 4b. (-3b+4b)= b
Finally, there's (c-8c-9c).
(-8c-9c)= -17c
Take that and add the positive 'c' to it.
(-17c+c)= -16c
Put it all together now to get:
7a + b - 16c
I hope that helped and helped you understand at least a little
:)
Which expression is equivalent to 6/7 divided by 3/5 ?
A. 6/7 x 5/3
B 6/7 x 5/3
C 7/6 divided 3/5
D 5/3 divided 6/7
Answers
Answer:
A.
Step-by-step explanation:
6/7 / 3/5 we invert the divisor and multiply:
= 6/7 * 5/3
A 400g pack of couscous contains 116g of carbohydrate.
A 250g bag of maize flour contains 195g of carbohydrate.
A 1kg bag of wheat flour contains 640g of carbohydrate.
Use percentages to work out the amount of carbohydrates in each.
Answers
Answer:
A: 70% B: 64%
Step-by-step explanation:
The line plot below shows the amount of water ( in gallons) students drank in a week. What is the difference in the lowest amount of water and the highest amount of water students drank
Answers
The difference in the lowest amount of water and the highest amount of water students drank is 1/2
How to determine the difference?From the complete question (see attachment for line plot), we have:
Least = 1/8
Highest = 5/8
The difference is then calculated as:
Difference = Highest - Least
This gives
Difference = 5/8 - 1/8
Evaluate
Difference = 4/8
Simplify
Difference = 1/2
Hence, the difference in the lowest amount of water and the highest amount of water students drank is 1/2
Read more about line plots at:
https://brainly.com/question/15853311
#SPJ4
Segment FG begins at point F(-2, 4) and ends at point G(-2, -3). The segment is translated 3 units left and 2 units up, then reflected across the y-axis to form segment F'G'.How many units long is segment F'G'?
Answers
Answer:
[tex]F'G' = 7[/tex]
Step-by-step explanation:
Given
[tex]F = (-2,4)[/tex]
[tex]G = (-2,-3)[/tex]
Required
Distance of F'G'
The transformation that give rise to F'G' from FG are:
TranslationReflectionThe above transformations are referred to as rigid transformation, and as such the side lengths remain unchanged.
i.e.
[tex]F'G' = FG[/tex]
Calculating FG, we have:
[tex]FG = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]
Where:
[tex]F = (-2,4)[/tex] --- [tex](x_1,y_1)[/tex]
[tex]G = (-2,-3)[/tex] --- [tex](x_2,y_2)[/tex]
[tex]FG = \sqrt{(-2 - -2)^2 + (4 - -3)^2}[/tex]
[tex]FG = \sqrt{(0)^2 + (7)^2}[/tex]
[tex]FG = \sqrt{0 + 49}[/tex]
[tex]FG = \sqrt{49}[/tex]
Take positive square root
[tex]FG = 7[/tex]
Recall that:
[tex]F'G' = FG[/tex]
[tex]F'G' = 7[/tex]
find the value of x
−9(10+x)=−243
Answers
Answer:
x = 17
I think this is the value for x
the distance from the center of a square to a side is 4 yd. find the perimeter of the square
Answers
4th grade math HAHAHAHAHHAAA your too young for brainly ima report you ✋✋✋
Help asap plssss......
Answers
Answer:
-3
Step-by-step explanation:
(-4)(6)/12
-24/12
= -2
it will be nice if I get brainiest
log(x+4)=logX + log4
Answers
Answer:
log
(
x
+
4
)
=
log
(
x
)
+
log
(
4
)
=
log
(
4
x
)
, so
x
+
4
=
4
x
, hence
x
=
4
3
Step-by-step explanation:
Rose is 5 years older than Milton. Rose's age is 10 years less than four times Milton's age. The system below models the relationship between Rose's age (r) and Milton's age (m):
r = m + 5
r = 4m – 10
Which is the correct method to find Rose's and Milton's ages?
Answers
Can you please help me
Answers
Answer:
there is the answer. ❤ hope it helps
Which of the equations below has no solution?
Answers
I have solved all of the problems and the last choice is the only one that has no solution.
Plz help fast will mark brainliest!!!
Answers
Answer:
V≈523.6
Step-by-step explanation:
Brianne's town is building a pool based on a scale drawing that is 20 centimeters by 10 centimeters and uses the scale 1 cm:250 cm. What is the area of the pool in square meters? Enter the area of the pool in the box.
Answers
Answer:
[tex]A=1250m^2[/tex]
Step-by-step explanation:
From the question we are told that
Dimension of drawing
20 centimetres by 10 centimetres
Scale of drawing
1 cm:250 cm
Generally the the Main dimension of the pool is mathematically given as
[tex]L=length\ of\ scaled\ pool*250 cm\\B=length\ of\ scaled\ pool*250 cm\\L=20*250=5000 cm=50m\\B=10*250=2500 cm=25m[/tex]
Therefore Area Aof main pool is mathematically given as
[tex]A=50m*25m=1250 m^2[/tex]
[tex]A=1250m^2[/tex]
A $60 shirt is on sale for 30% off. How much is the shirt's sale price?
Answers
Answer:39?
Step-by-step explanation:
