Answer:
Step-by-step explanation:
if you're asking for the proof and reasoning thing
1. yw⊥xz, yw bisects xz ⇒ given
2. xw≅zw ⇒ w is a midpoint
3.∠ywx and ∠ywz are right angles, so ∠ywx≅∠ywz ⇒ definition of perpendicular bisector
4. yw≅yw ⇒ reflexive
5. Δwxy≅Δwzy ⇒ SAS
6. xy≅zy ⇒ CPCTC
The spinner shown is spun 300 times.
a) How many times would you expect the arrow
to stop on green if the spinner is fair?
The table below shows the number of times
the arrow stops on each colour.
Colour
Blue
Red Pink
Frequency 45
37
52
Green
94
Purple
72
b) The spinner is spun once more.
Estimate the probability of landing on purple.
c) If the spinner is spun another 1000 times,
about how many times would you expect it to land on blue?
Answer:
I can't answer this question.
Step-by-step explanation:
There is no "shown spinner", so I have no clue as to what the answer is or could be. Maybe try attaching a photo?
Answer:
A) 60
B) 72/300
C) 150
Step-by-step explanation:
A) P(green) = ⅕
⅕ × 300 = 60
B) purple: 72
45+37+52+94+72 = 300
Therefore, 72/300
C) 1000 × (45/300)
150
Can someone help me with this please :( .
Please don’t answer if you don’t know.
A pole that is 3.5 m tall casts a shadow that is 1.38 m long. At the same time, a nearby tower casts a shadow that is 49.75 m long. How tall is the tower? Round your answer to the nearest meter.
Answer: 126
Step-by-step explanation: i am so sorry if i am wrong
Can someone write this out???? plz and thank you
Step-by-step explanation:
the answers are in the attachments
8) b + 9 +4b
First time on here
Answer:
9 + 5b
Step-by-step explanation:
Extending answers to be able to send.
PLS HELP WITH ALGEBRA
Factor these expressions. First find the GCF
1. 4x³+20x²+16x
2. 12x⁴+26x³-16x²
3. 10x²+48x-10
Answer:
1. 4x(x + 1)(x + 4)
2. 2x²(3x + 8)(2x - 1)
3. 2(x + 5)(5x - 1)
Sara started her homework at 5:30 p.m, and finished it at 9:15 p.m. How much time did she take to finish her homework?
Answer:
3 hr. 45 min.
Step-by-step explanation:
pls helppppppppppppppppppppppppppppppppppp
Answer:
fruits grow from
Step-by-step explanation:
flower
Kendra and Haley are each saving money, Kendra starts with $100 in his savings
account and adds $5 per week. Haley starts with $10 in her savings account and adds
$20 each week. After how many weeks will Haley have at least the same amount of
money as Kendra?
1 - (2x + 9) = 4(21 - 2)
Answer:
x = 42
Step-by-step explanation:
1 - (2x + 9) = 4(21 - 2)
Distributive property ( multiply whatever is in the parenthesis by (-) for the first one, and (4) for the second one)
1 - * 2x + - * 9 = 4 * 21 - 4 * 2
1 - 2x - 9 = 84 - 8
Combine like terms
-8 - 2x = 76
Add 8 on both sides
-8 + 8 - 2x = 76 + 8
2x = 84
Divide by 2 on both sides to isolate the variable
2x/2 = 84/2
x = 42
Hope this helped!
Have a supercalifragilisticexpialidocious day!
(-12,-1) and (-3,-4) find the slope of the given points.
Answer:
Its not a crown its Brainliest
Step-by-step explanation:
help me for brainlist no cap
Answer:
C
Step-by-step explanation:
So first, you find the area of a rectangle, which would be 15 * 30 = 450. Next, find the area of the semicircle by doing [tex]\pi *r^2 / 2[/tex] (you have to divide by 2 because it's only have a circle).
The radius is half of 15, so 15 / 2 = 7.5. This would be:
[tex]\pi * 7.5^2 / 2[/tex]
[tex]=\pi * 56.25 /2[/tex]
[tex]=28.125\pi[/tex]
[tex]=28.125*3.14=88.3125[/tex]
The last step is to add 450 + 88.3125 = about 538.3 m^2
Answer: B
Step-by-step explanation:
I NEED HELP PLEASE!!! An investor has an account with stock from two different companies. Last year,
her
stock in Company A was worth $2300 and her stock in Company B was worth $3080.
The stock in Company A has decreased 9% since last year and the stock in Company
B has decreased 25%. What was the total percentage decrease in the investor's stock
account? Round your answer to the nearest tenth (if necessary).
Answer:
81.8%
Step-by-step explanation:
Last year:
Company A stock + Company B stock = total amount of stock:
$2300 + $3080 = $5380
This year:
Company A stock: 2300 - (2300*0.09) = 2093
Company B stock: 3080 - (3080*0.25) = 2310
Company A stock + Company B stock = total amount of stock:
$2093 + $2310 = $4403
Total amount of decrease from last year:
[tex]\frac{4403}{5380} * 100 = 81.8[/tex] percent
The price of a technology stock has risen to $9.61 today. Yesterday's price was $9.52 . Find the percentage increase. Round your answer to the nearest tenth of a percent.
Answer:
.9%
Step-by-step explanation:
9.61 - 9.52 = .09
Percent of increase = .09/9.52 = .00945... = .9%
6 – 2x = 24
-6
- 6
2x = 18
2 2
x = 9
Is this statement true or false?
What is the common difference of the sequence 16, 48, 80...?
Answer:
it was counting x3 and changed going to 48 to 80
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Assuming that i = 3.14, how much air will it take to fill a sports ball with a radius of 15 inches?
Answer:
706.86
Step-by-step explanation:
15² x π = 706.86
14,130 cubic inches of air it will take to fill a sports ball with a radius of 15 inches.
What is the volume of a sphere?A sphere is a three-dimensional shape analouge of a circle.
The volume of a sphere = 4/3πr^3
The radius of the sphere is 15 inches.
The volume of a sphere = 4/3πr^3
= 4/3 x 15 x 15² x π
= 14,130
Thus, 14,130 cubic inches of air it will take to fill a sports ball with a radius of 15 inches.
Learn more about sphere;
https://brainly.com/question/11374994
#SPJ2
Find the missing side length. Tell if the side lengths form a Pythagorean triple. Explain.
The length of the missing side of the triangle is 15.
How to calculate the length of the side of the triangle?To calculate the length of the side of the triangle we must use the Pythagorean theorem:
b = [tex]\sqrt[]{(a^{2})-(b^{2} }[/tex]
In this formula we can replace the value of a and c with the distances of the other sides of the triangle.
b = [tex]\sqrt[]{(25^{2}) - (20^{2}) }[/tex]
b = [tex]\sqrt[]{(625) - (400)}[/tex]
b = [tex]\sqrt[]{225}[/tex]
b = 15
According to the above, the length of side b is 15.
Learn more about triangles in: https://brainly.com/question/2269348
please help im so confused
Answer:
[tex]\frac{8}{6} =\frac{m}{16}[/tex]
Step-by-step explanation:
Please help Will give you the brainliest.
Answer: A.
Step-by-step explanation:
A printer will produce 80 wedding invitations for $210. The price to produce 120 invitations is $290. The printer uses a linear function to determine the price for producing different amounts of invitations. How much will the printer charge to produce 60 invitations?
A. $120.00
B. $145.00
C. $157.50
D. $170.00
(-2t+3)(4t-5) how to do this in quadratic standard form
Answer:
−8t^2+ 22t −15
Step-by-step explanation:
Hope that helps
HELP ME! I BEG YOUUUU
Answer:
12
Step-by-step explanation:
Using the pythagorean theorem we have DE^2 + 5^2 = 13^2
DE^2 = 169 - 25 = 144
DE = sqrt144 = 12
Or, you could just remember the triangle 5-12-13, as it is pretty common, along with 3-4-5, 7-24-25
please help dont answer if u dont know the answer
Answer:
3rd one
Step-by-step explanation:
PLZ HELP ASAP, IT'S TIMED!!!
Which of the following equations has the given solution set?
Solution set: ∅
-2m + 5 = -2m + 5
-2m + 5 = 2m + 5
-2m + 5 = -2m - 5
Answer:
what are the options for the selection
6.1 is 1/3 of what?
Please help ASAP!
Answer:
2.03
Step-by-step explanation:
1/3 = 0.333333....
6.1 x 0.33333 = 2.03333333
Jin ye only has to answer 30% of her math packet if there are only 70 questions in the packet, how many questions must she answer
Answer: She must answer 21 questions.
Step-by-step explanation:
GIven: Percent of question she need to answer = 30%
i.e. Total questions she must answer = 30% of (Total questions in the packet)
Since there are 70 questions in the packet, then the number of question she must answer will be
30% of 70
= 0.30 x 70 [30%=0.30]
= 21
Hence, she must answer 21 questions.
If 5r + 4 = -4 – (6r – 8), then
–4r = ?
a)12
b) -2
c)-8
d) 0
Answer:
[tex]-4r = 0[/tex]
Step-by-step explanation:
Given
[tex]5r + 4 = -4 - (6r - 8)[/tex]
Required
Find - 4r
[tex]5r + 4 = -4 - (6r - 8)[/tex]
Open bracket
[tex]5r + 4 = -4 - 6r + 8[/tex]
Collect Like Terms
[tex]6r+5r =- 4 -4 + 8[/tex]
[tex]11r =0[/tex]
Solve for r
[tex]r = \frac{0}{11}[/tex]
[tex]r = 0[/tex]
Multiply both sides by -4
[tex]-4r = 0*-4[/tex]
[tex]-4r = 0[/tex]
what is the value of ??????
1. What is the circumference of the circle below? Use 3.14 for pi. Round
your answer to the nearest tenth.
Answer:
37.7
Step-by-step explanation:
2πr = circumference
r=d/2
r=12/2
r=6
2*π*6 = 37.68
