A≈50.27cm²
Using the formulas
A=πr2
d=2r
Solving forA
A=1
4πd2=1
4·π·82≈50.26548cm²
Answer:
16π cm^2
Step-by-step explanation:
The formula for the area of a circle is [tex]\pi r^{2}[/tex], r being the radius. The radius is always half of the diameter, so in this case, the radius is 4. [tex]4^{2}[/tex] is just 4 * 4 which is 16. Multiply that by π and you get 16π. Or, approximately 50.27 cm^2
What is the vertex of the graph?
first to answer correct will be the baranist .the ratio of students who wear spectacles is 2:5.
1.what is the ratio of students who wear speactacles and those who dont.
2.if there are 15 students who dont wear speactacles ,how many students wear speactacles in the class.
3.how many students are there in class
Answer:
1) Who wear: 2:5
Whi don't wear: 3:5
2) 10 don't wear spectacles
3) 25
Hope it helps!!!
State the relationship between the angle pair marked
answer:
alternate interior angles
step-by-step explanation:
look up what alternate interior angles look likethis relationship would be called alternate interior anglesAnswer:
If they are parallel then they are equal alternayive angle
Step-by-step explanation:
(3x+16)°=(5x-54)°16+54=5x-3x70=2x70/2=xx=35You need to score a 90 or higher on your next test to make the honor roll. If x represents the score on your next test, which inequality represents the situation?
x > 90
x< 90
x ≥ 90
x ≤ 90
Answer:
x ≥ 90
Step-by-step explanation:
it says 90 or higher which also means "at least 90", which means greater than or equal to 90.
The perimeter is expressed in the following units
(a) cm (b) cm2
(c) cm3
(d) m2
Answer:
a) cm
Step-by-step explanation:
Perimeter is one -dimensional and is measured in unit (centimeters, meters, kilometers, inches, feet, yards, and miles. Single units represent one-dimensional
Area is two-dimensional m2......
Volume is tri -dimensional m3........
Is (4,10), (7,-2), (5,4), (7,6) a function?
18.
X
The line of best fit for the graph above has the equation y = 2x + 1.
What value does the line predict when x = 5?
Answer:
[tex] y = 10[/tex]
Step-by-step explanation:
[tex]y= 2x + 1 \\ x = 5 \: \\ substitude \: 5 \: to \: the \: value \: of \: x \\ y = 5 \times 2 + 1 = 10 \\[/tex]
HELP WILL MARK BRAINLIEST ANSWER IF GOTTEN RIGHTT
Answer:
.80
Step-by-step explanation:
Hey There,
Cosine = adjacent / hypotenuse
the adjacent of c is 16
the hypotenuse is 20
so cos C = 16/20 or .80
Answer:
Step-by-step explanation:
cos=(adjacent side)/(hypotenuse)
cosC=16/20
cosC=4/5
cosC=0.80 (to nearest hundredth)
Which line is parallel to line r?
Answer:
uh line o
Step-by-step explanation: can you provide an image?
Ron and Freddy built structures out of snap cubes. Ron's tower had an 8-inch square base. Freddy had a 6-inch square base. If Ron's tower had a volume of 320 cubic inches and Freddy's had a volume of 180 cubic inches, Whose tower was taller? Explain your reasoning.
Answer: Ron tower's
Step-by-step explanation:
Given
Ron tower has a base of [tex]A_r=8\ in.^2[/tex]
Freddy tower has a base of [tex]A_f=6\ in.^2[/tex]
Suppose the tower is in the shape of a square prism
The volume of Ron and Freddy tower is [tex]320\ \text{and}\ 180\ in.^3[/tex]
The volume of a square-based prism is [tex]V=\frac{1}{3}a^2h[/tex]
[tex]\therefore \text{height of Ron tower is}\ h_r=\dfrac{3V}{A_r}\\\\\Rightarrow h_r=\dfrac{3\times 320}{8}=120\ in.[/tex]
The height of Freddy tower is
[tex]\Rightarrow h_f=\dfrac{3V}{A_f}\\\\\Rightarrow h_f=\dfrac{3\times 180}{6}=90\ in.[/tex]
Thus, the height of Ron's tower is more than Freddy's tower by [tex]30\ in.[/tex]
What is the area of the figure
Answer:
i dont
Step-by-step explanation:
know
Convert the decimal to a fraction.
0.483
Answer:
483/1000
Step-by-step explanation:
i think i could be wrong
Answer:
The answer is =483/1000
Mindy's dog, Rex, weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?
A.
13%
B.
16%
C.
15%
D.
12%
HEL ME PLEEAASSEE AMIGO PLEEAASSEE or amiga
Answer:
159 degrees
Step-by-step explanation:
A full semicircle (or half circle) has a degrees of 180. And x is equal that semicircle so x = 180, now if we subtract 21 from 180 we get 159, so X = 159.
NEED HELP!!!!!!
Please
Answer:
the question is blurry and it has a glare
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
just use the app Math-way it had a feature where you can take a picture of it and it will answer and give an explanation for your problem
i really need help with this:
Jasmine drew a rectangle with an area of 4 square inches. Jasmine drew a new scaled version of the original rectangle using a scale factor of 5. What is the area, in square inches, of the new rectangle?
Answer:20
Step-by-step explanation:
i wrote 10 for some reason
A car dealership offers two choices of discount on a car with a sticker
price of $35,000. Choice A: $5,000 rebate Choice B: 14% discount Which
is the better deal for the custonser?
Please help me with this question, I'm confused
Answer: The answer would be 12 and 12
Hope it helps :D
QUICK HELP!! If two linear equations have one solution, then the...
A Slopes are the same but the y-intercepts are different
B Slopes are different
C Slopes are the same and the y-intercepts are the same
Answer:
A
Step-by-step explanation:
A building has a ramp to its front doors to accommodate the handicapped. If the distance from the building to the end of the ramp is 25 feet and the height from the ground to the front doors is 7 feet, how long is the ramp? (Round to the nearest tenth.)
24.0 ft
9.9 ft
26.0 ft
5.7 ft
Answer:
9.9
Step-by-step explanation:
Find the value of x. Then find the measure of each interior angle. Show work algebraically
Answer:
Step-by-step explanation:
W=180-144
W=36 degrees
The sum of angles in a triangle always sum to 180 degrees.
6x+1+7x+36=180
13x+37=180
13x=143
x=11
U=6x+1
U=6(11)+1=67 degrees
V=7x
V=7(11)=77 degrees so
x=11 degrees, U=67 degrees, V=77 degrees, and W=36 degrees.
(financial math) Elementary and Secondary Education is paid mostly from:
O Corporate Taxes
О Defense Taxes
O State Taxes
O Federal Taxes
State taxes.
According to Urban dot org, school funding is a blend of federal, state, and local dollars.
State taxes are more likely to be correct due to education being the state's responsibility.
If this is incorrect, please, don't refrain to tell me. Thank you.
The width of a rectangle is 4cm less than the length. If each dimension were increased by 3cm, the width of the new rectangle formed would be 2/3 the length of the new rectangle. Find the dimensions of the original rectangle.
Answer:
The original length is 9 cm and the original width 5 cm
Step-by-step explanation:
The area of a rectangle A is given as the product of its' length L and width W.
Given that the width of a rectangle is 4cm less than the length then
W = L - 4
If each dimension were increased by 3cm, then the new
Length
= L + 3
Width
= W + 3
the width of the new rectangle formed would be 2/3 the length of the new rectangle
W + 3 = 2/3(L + 3)
3W + 9 = 2L + 6
3W = 2L +6 - 9
3W = 2L - 3
Recall that W = L - 4
3(L - 4) = 2L - 3
3L - 12 = 2L - 3
3L - 2L = 12 - 3
L = 9 cm
W = 9 - 4
= 5 cm
Layla bought a new computer for $500. Each year, the value of the computer decreased by 50% of the previous years value. At this rate, what can Layla expect the approximate value f the computer to be after 4 years?
Layla bought a new computer for $500. Each year, the value of the computer decreased by 50% of the previous years value. At this rate, what can Layla expect the approximate value f the computer to be after 4 years?
A. $125.00
B. $62.50
C. $31.25
D. $250.00
A. $125.00
B. $62.50
C. $31.25
D. $250.00
Answer:
Answer = C.31.25
Step-by-step explanation:
SO there are 4 years and every year the price gets 50% of so we take it as 100/2 = 50% so we have to divide 500 by 2 four times that is -
1. 500/2 ( 50% of 500) = 250
2. 250/2 (50% of 250) = 125
3. 125/2 (50% of 125) = 62.50
4. 62.50/2 (50% of 62.50) = 32.25
so we divided 500 4 times to get the answer as 32.25$
which fraction is closest to zero?
a.) 1/4
b.) 4/12
c.) 3/8
d.) 2/6
How many solutions does the system have?
y=3x+3
y=−2x+3
choose 1 answer
A) Exactly one solution
B) No solutions
C) Infinitely many solutions
Answer:
A
Step-by-step explanation:
Given the 2 equations
y = 3x + 3 → (1)
y = - 2x + 3 → (2)
Substitute y = 3x + 3 into (2)
3x + 3 = - 2x + 3 ( add 2x to both sides )
5x + 3 = 3 ( subtract 3 from both sides )
5x = 0 , then
x = 0
Substitute x = 0 into (1)
y = 3(0) + 3 = 0 + 3 = 3
solution is (0, 3 ) → A
Someone help me pls
Answer: A. 90° clockwise, E. 270° counterclockwise
A 36 meter wallpaper frieze is fitted around a rectangular room.
The room is 6 meter wide.
How long is the room?
Hadley runs several times around the
track. One lap around the track is
equal to 0.15 miles. She then runs 0.4
miles home for a grand total of 1.75
miles. Write an equation to help you
determine the number of laps Hadley
ran around the track.
#21
08
The answer is 9.
1.75 - 0.4 = 1.35
1.35 ÷ 0.15 = 9