geometry- finding radius of a circle. please only answer if you actually know. it would help so much
Answers
Answer:
D
Step-by-step explanation:
For a circle, the equation of the circumference is c = π * 2r (radius). Since in this case, the circumference is 15.3, that means π * 2r = 15.3. I'm going to assume that pi is 3.14 because the four answers aren't particularly close to each other. This means that 2r = approx. 4.872. If you then divide both sides by 2 you get r = approx. 2.436, which is closest to answer D.
Related Questions
The length of a rectangle is (x + 3) inches long, and the width is 3.4
inches. If the area is 15.3 square inches, which equation can be used to find
x? *
A. 3.4(x + 3) = 15.3
B 3.4x + 3 = 15.3
C. 3(x + 3.4) = 15.3
D. 3x + 3.4 = 15.3
Answers
Answer:
A)
Step-by-step explanation:
SOMEONE PLS HELP! THIS IS OVER DUE, HRLP ASAP!! I’LL GIVE 100 POINTS IF THIS IS ALL CORRECT! Work needs to be shown for all problems. ( don’t do the ones that are crossed off )
Answers
Answer:
Step-by-step explanation:
6. Soil volume = area * height = 1/2*4*4*2.5 = 20 cubic ft
7. Concrete volume = length * width * height = 1.8*1.8*3 = 9.72 cubic ft
Block weight = 95*9.72 = 923.4 lb
8. It is unclear but let's assume the ramp consists of 5 pieces.
The total area = 4*6+3.5*(4+6+7.2) = 84.2 sq ft
So it will require a minimum of 85.2/(4*2) = 10.65 or 11 sheets of plywood
Answer:
Step-by-step explanation:
the skateboard ramp only needs 3 pieces: 2x triangle of 4' by 6' and 1x rectangle of 3.5' by 7.2'.
the 2x triangle require 4x6/4x2 = 3 sheets of plywood
the rectangle require 3.5x7.2/4x2 = 3.15 ~4
so minimum is 7 sheets
HELP ASAP FIRST PERSON WITH CORRECT ANSWER GETS BRAINLIEST
Which statements about the triangles are correct? Select two that apply.
A. Triangle P is similar to triangle Q.
B. Triangle P is a reflection and a translation of triangle Q.
C. Triangle P is not similar to triangle Q.
D. Triangle P is a reflection and dilation of triangle Q.
E. Triangle P is a translation and a dilation of triangle Q.
Answers
find the volume of the irregular figure
Answers
Answer:
V = 672cm^3
Step-by-step explanation:
V of irregular figure = lwh + lwh
V = 7(3)(2) + 10(7)(9)
V = 42 + 630
V = 672cm^3
A cell phone company offers two different monthly text-messaging plans as shown in the table below. For what number of text messages will both plans cost the same?
A. 55 messages
B. 85 messages
C. 110 messages
D. 140 messages
Answers
Answer:
110
Step-by-step explanation:
What is a formula for the nth term of the given sequence ? 10,-20,40...
Answers
if u need the solution i will give it to u
Which expression represents a rational number?
Please help right now!!!
Answers
Answer:
A
Step-by-step explanation:
Every integer is a rational number; a whole number. The square root of 49 equals 7, which is the only outcome giving an integer as an answer.
does the data suggest a linear, quadratic, or exponential model?
Answers
What is the volume, in cubic ft, of a rectangular prism with a height of 17ft, a width of
10ft, and a length of 16ft?
Answers
Answer:
2,720 ft³
Step-by-step explanation:
17x10x16 = 2,720
volume of a cone is 48 pi cubic inches the cone has a height of 36 inches Mark finding the radius of the cone complete his work
Answers
Answer:
c or take the square root of both sides
a or 2 inches
Step-by-step explanation:
If the discriminant of an equation is 10, then the roots are
A) real, rational, and unequal
B) real, irrational, and unequal
C) real, rational, and equal
D) imaginary
Answers
Answer:
b
Step-by-step explanation:
Since the given discriminant is 10, hence the roots will be real, irrational, and unequal
Discriminant of an equation
The discriminant is used to determine the nature of the roots of a quadratic equation. The formula for finding the discriminant is expressed as:
D = b^2 - 4ac
If D > 0, the nature of the roots are real, irrational, and unequal If D < 0, the nature of the roots are imaginarySince the given discriminant is 10, hence the roots will be real, irrational, and unequal
Learn more on discriminant here: https://brainly.com/question/24730520
PLEASE HELP I WILL MARK U AS BRAINLIST !!!!
The length of each of the legs of an isosceles triangle is represented by the expression 5x-2 inches. The length of the base of the isosceles triangle is represented by the expression 3x +1 inches. The perimeter of the isosceles triangle is 42 inches.
determine whether each equation represents the perimeter of the isosceles triangle , in inches .
select yes or no for each equation
A. 13x-2=42 yes or no
B. (10x-2)+(3x+1)=42 yes or no
C.2(5x-2)+2(3x+1)=42 yes or no
D.5x-2+3x+1+5x-2=42 yes or no
THERE CAN BE MORE THAN ONE ANSWER.
thank you
Answers
Answer:
A.NoAs,
5x - 2 + 5x - 2 + 3x + 1 = 13x - 3 = 42
But here,
13x - 2 which is not equal to 13x - 3
Hence, it's wrong.
B. NoAs,
5x - 2 + 5x - 2 + 3x + 1 = (10x - 4) + (3x + 1) = 42
But here,
(10x - 2) + (3x + 1) which is not equal to (10x - 4) + (3x + 1)
Hence, it's wrong.
C. NoAs,
5x - 2 + 5x - 2 + 3x + 1 = 2(5x - 2) + 3x + 1 = 42
But here,
2(5x-2)+2(3x+1) which is not equal to 2(5x - 2) + 3x + 1
Hence, it's wrong.
D. YesAs,
5x - 2 + 5x - 2 + 3x + 1 = 42
Also,
5x-2+3x+1+5x-2 equal to 5x-2+3x+1+5x-2
Hence, it's correct.
Answer:
A and D is right
Step-by-step explanation:
I did the quiz and use the answer and it was right
a whale costs $14700 and depreciates in value by 8% per year. When will the whale be worth $100
Answers
Answer:
x = 60
Step-by-step explanation:
The question is asking
$14,700 * (1 - 8%)^x = $100
$14,700 * (1 - 0.08)^x = $100
$14,700 * (0.92)^x = $100
(0.92)^x = $100/$14,700
log(0.92^x) = log($100/$14,700)
x * log(0.92) = log(0.0068027)
x = log(0.0068027)/log(0.92)
x = 59.85
Since this question is asking in terms of years, we always round up (in this case to 60), as it won't fully be worth $100 by the beginning of the 59th year.
Questions a-f in picture fast please with explaination for work
Answers
Classify the expression by degree. -6x5 + 7x4 - 5x2
2
3
4
5
WILL MARK BRAINLEST
Answers
Answer:
-6x5 + 7x4 - 5x2
Step-by-step explanation:
Answer:
6x5=30+7×4=38 combined it equals 58 5x2=10 58-10=48
Find Angle RPQ
Number are 99 and 111
Answers
Step-by-step explanation:
99+111+arc QR=360°
arc QR=360-210 =150°
again,
RPQ=150/2{inscribed angle is half of it's arc}
75°stay safe healthy and happy..can someone help me lol??
Answers
Answer:
X = 4.3, -0.3
Step-by-step explanation:
Write the answer with like a line on top of the 2 threes that you see
Mark me as brainliest!!
Solve the following quadratic equation for all values of xx in simplest form.
5(2x+1)^2+6=26 cant figure this out!!
Answers
Answer:
x=1/2 and x=-3/2
Step-by-step explanation:
5(2x+1)^2+6=26
5(2x+1)^2=20
(2x+1)^2=4
2x+1=±2
Now make two equations and solve both for x:
2x+1=2
2x=1
x1=1/2
2x+1=-2
2x=-3
x2=-3/2
The histogram displays different numbers of days that customers rented a car. Which interval represents the most common number of days customers rented a car
Answers
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the histogram is not attached.
However, the solution to your question is to select the interval with the highest frequency
Take for instance, after getting readings from the histogram, yiu have:
1 - 10: 8
11 - 20: 5
21 - 30: 11
31 - 40: 2
And so on.......
Interval 11 - 20 will represent the required interval because it has the highest frequency.
Jeffrey's recipe for oatmeal muffins calls for 2 1/4 cups of oatmeal and makes two dozen muffins. If he makes 1 1/2 dozen muffins for a club meeting, how much oatmeal will he use?
Answers
Answer:
1 1/8 cups of oatmeal b/c 2 1/4 ÷ 2 = 1 1/8 ( one and one eighth)
Step-by-step explanation:
If its not 1 1/8 then its 3 3/8 (i saw that answer on quizziz)
I HAVE A MATH TEST PLZ HELP I'M GIVING OUT 50 POINTS PLZ
S.O.S I HAVE MATH
Answers
Answer:
Graph included as picture
Step-by-step explanation:
To solve this, plot the given points on the graph
Draw a line through them.
Now select two of those values and we'll find the rate of change.
We'll be using (1,-1) and (3,3)
To find rate of change we will be using the formula: [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
[tex]y_{2} = 3\\y_{1} =-1\\x_{2} = 3\\x_{1} = 1[/tex]
[tex]\frac{3-(-1)}{3-1} = \frac{4}{2} = 2[/tex]
So the rate of change is 2
You will use this rate of change for your other function because they both have the same rate of change
Since we have the rate of change, we can create the slope intercept form formula: y = mx +b
Just substitute for the variables we know
m = rate of change/slope = 2
b = y-intercept = -3
y = 2x + -3
[If you connected all the points in your graph, that's how you found the y-intercept]
Now we have to create the formula for the second function.
We know it will have that same slope of 2
so we have y = 2x + b
To solve for b we can plug in the values we do have which would be (x,y) of (3,6)
6 = 2(3) + b
Now solve
6 = 6 + b
6 (-6) = 6 (-6) + b
0 = b
b = 0
This mean that the y-intercept will be on (0,0)
Plot that point
Now we finish the formula
y = 2x + 0
Connect the dots, make sure the line continues on both of them past the dots and now you have your graph!
I've included a picture of the graph for your reference. I hope this helps, don't be afraid to reach out with further questions!
Darren reads 5 pages of a book each morning
and 7 pages of a book each evening.
How many pages will he read in seven days?
Answers
12x7=84
He will read 84 pages within seven days.
What expression can be used to find the quotient of 1,512 ÷ 24
Answers
Answer:
63
Step-by-step explanation:
Find the missing measurement.
Round your answer to the nearest tenth.
4.9 cm
10 cm
? cm
9.9 cm
Area = 66.6 cm2
12 cm
7.2 cm
10.6 cm
9cm
Answers
Answer:
22
Step-by-step explanation:
Which triangle is a reflection of the green triangle?
Δ4
Δ3
Δ1
Δ2
Answers
Answer:
Δ4
Step-by-step explanation:
Answer:
it's answer is triangle 4
math need answer
asap please
Answers
Answer:
h=6
k=2.5
m=4.58
n=3[tex]\sqrt{10[/tex]
p=4.12
Step-by-step explanation:
PLEASSEEEE HELPPP ME HURRRYY
Answers
Answer:
8 = D
9 = D
10 = D
Step-by-step explanation:
For 8, a straight line is 180 degrees, and if PQS is already x+55, then RQS is also x, so it would be 2x +55 = 180
For 9, surface area is just area of the sides of a shape, so (3*15)*2 + (6*3)*2 + (5*6)*2 which equals 30 +36 + 60, which is 126.
For 10, the volume is the width*length*height, so 4*4*11 = 16*11 = 176, and because there are 6 rectangular prisms, 176*6 which is equal to 1056.
(C) Find the arithmetic mean of given data
12, 10, 15, 14, 16, 25, 18, 22
Answers
Answer: Mean- 16.5
Step-by-step explanation:
Jeff bought 4 oranges and 7 apples for a total of $4.88. Gene bought 12 oranges and 8 apples for a total of $7.88. What is the cost of each orange and each apple?
Answers
12x+8y=7.88
-12x-21y=-14.64
Add the two above equations together, the y will be left:
-13y=-6.76
y=0.52 —> cost of each apple (plug back into one of original equations, I chose 4x+7y=4.88:
4x+7(0.52)=4.88
Solve for x.
x=0.31 —> cost of each orange
4b^2 +8b + 7 = 4
show your work I already have the answer!!
Answers
Answer:
(-.5,0) and (-1.5,0)
or b= -.5
and b= -1.5
Step-by-step explanation:
First we want one side of the equation to equal 0
we have
4b²+8b+3=0
using the quadratic formula we have
(-b±√(b²-4*a*c))/2a
(-8±√(8²-4*4*3))/2*4
(-8±√(16))/8
(-8±4)/8
now we evaulate when ± is addition
(-8+4)/8
-4/8
-.5
and evaulate once more when the ± is subtraction
(-8-4)/8
-12/8
-1.5
Therefore the two solutions are (-.5,0) and (-1.5,0)
Answer:
Step-by-step explanation:
step one - Move terms to the left side
(4b^2 + 8b + 7 = 4)
(4b^2 + 8b + 7 - 4 = 0)
step dose - Subtract the numbers
(4b^2 + 8b + 3 = 0)
step три - Use the sum-product pattern
(4b^2 + 6b + 2b + 3 = 0)