Answer:
176.7 in²
Step-by-step explanation:
The formula for the area of a circle is πr².
But first, you have to find the radius. The radius is half of the diameter, which is the length from one edge of the circle to the other.
Here the diameter is 15 in. Divide the diameter by 2 to get the radius.
r = 15 ÷ 2 = 7.5 in
Now plug the radius into the formula and solve for the area.
A = πr²
A = π(7.5)²
A = π(56.25)
A = 176.7145868 ⇒ 176.7 in²
Hope that helps.
I don't know how to do these I have online schooling and I need this asap please any help be amazing
Let f(x) = 3x - 5 and g(x) = x +10 Find f(g(x))
Answer:
f(g(x)) = 3x + 25
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Function NotationFunction CompositionStep-by-step explanation:
Step 1: Define
f(x) = 3x - 5
g(x) = x + 10
Step 2: Find f(g(x))
Substitute: f(g(x)) = 3(x + 10) - 5Distribute 3: f(g(x)) = 3x + 30 - 5Subtract: f(g(x)) = 3x + 25What is the the area of an 8x8x8 general prism
Answer:
512??
Step-by-step explanation:
um i just multipled 8x8x8 but its probably wrong- sorry
PLZ I REALLY NEED HELP Find the values of x and y in parallelogram PQRS
15. PT=x+2, TR=y, QT=2x, TS=y+3
PLZ ANSWER ASAP DUE IN 30 MINS I WILL BE AWARDING 20 POINTS AND BRAINLIEST ANSWER TO whoever CAN SOLVE THIS
Answer:
x = 5 and y = 7
Step-by-step explanation:
Given that,
PT = x+2, TR=y, QT=2x, TS=y+3
We need to find the value of x and y.
The diagonal of a parallelogram bisect each other. It means,
PT = TR and QT = TS
ATQ,
y = x+2 ...(1)
and
y+3 = 2x ....(2)
Subtracting equation (1) and (2).
y-(y+3) = x+2-2x
y-y-3 = 2-x
-3 = 2-x
x = 2+3
x = 5
Put the value of x in equation (1).
y = 5 + 2
y = 7
Hence, the values of x and y are x = 5 and y = 7.
Answer:
^ they are correct
Step-by-step explanation:
My guys do your thing i am giving brainliest
Answer: 18.84
1. Multiply the radius by two (diameter)
2. Multiply the diameter by pi
3. Round
Answer:
the circles circumference is 18.84 cm
(4.102) (2-103)
What is this
Answer:
− 414.302
(The answer is simplified, you did not specify the way to solve it.)
) Choose ALL the numbers that are less than 6.58. 6.583 6.5 6.58 5.98 6.538 6.49
Answer:
6.5, 6.49
Step-by-step explanation:
The numbers that are less than 6.58 is 6.58, 5.98, 6.538 and 6.49.
What is decimal?A group of numbers between integers on a number line are known as decimals. They are merely an additional mathematical representation of fractions.
Decimals allow us to express measurable quantities like length, weight, distance, money, etc. with greater accuracy. Integers, also known as whole numbers, are represented to the left of the decimal point, while decimal fractions are represented to the right of the decimal point. The next place, which is (1/10)th or tenth place value, is (1/10) times smaller if we move immediately from the first place.
Given number: 6.58
Now, we have to find the number less than 6.58
6.58 < 6.583
6.58 > 6.5
6.58 = 6.58
6.58 >5.98
6.58 > 6.538
6.58 > 6.49.
Hence, the numbers that are less than 6.58 is 6.58, 5.98, 6.538 and 6.49.
Learn more about decimal here:
https://brainly.com/question/548650
#SPJ2
Which of these equations has a solution of x = 2? Select three that apply. A 6(2x – 1) = 4 + 7x B 10 – 3x = –2(x + 4) C –3(7 – 2x) = –1 – 4x D 7x + 12 = 2(4x – 5) E –5(x + 1) = –4 – 7x F 8x + 11 = 9(5 – x)
Answer:
x = 2 for a, c, and f
Step-by-step explanation:
a)
6(2x - 1) = 4 + 7x
12x - 6 = 4 + 7x
5x = 10
x = 2
b)
10 - 3x = -2(x + 4)
10 - 3x = -2x - 8
18 = x
c)
-3(7 - 2x) = -1 - 4x
-21 + 6x = -1 - 4x
10x = 20
x = 2
d)
7x + 12 = 2(4x - 5)
7x + 12 = 8x - 10
22 = x
e)
-5(x + 1) = -4 - 7x
-5x - 5 = -4 - 7x
2x = 1
x = 1/2
f)
8x + 11 = 9(5 - x)
8x + 11 = 45 - 9x
17x = 45 - 11
17x = 34
x = 2
Answer:
A,C,F
Step-by-step explanation:
Flying lessons on weekdays cost m dollars per hour. Flying lessons on weekends cost 1.2m dollars per hour. The expression 9m+3(1.2m) represents the to
Answer:
The cost of lesson for 9 hours on weekdays and 3 hours on weekends
Step-by-step explanation:
Given
[tex]Weekdays = \$m /hour[/tex]
[tex]Weekends = \$1.2m/hour[/tex]
Required
What does 9m + 3(1.2m) represent
The expression can be split to:
9m and 3(1.2m)
For 9m:
From the question, we understand that:
[tex]m = 1\ hour[/tex]
Multiply both sides by 9
[tex]9 * m = 1\ hour * 9[/tex]
[tex]9 m = 9\ hours[/tex]
This means that:
9m = the cost of lessons for 9 hours on weekdays
For 3(1.2m):
From the question, we understand that:
[tex]1.2m = 1 \ hour[/tex]
Multiply both sides by 3
[tex]3 * 1.2m = 1 \ hour * 3[/tex]
[tex]3(1.2m) = 3 \ hours[/tex]
This means that:
3(1.2m) = the cost of lessons for 3 hours on weekends
Hence, the expression represents:
The cost of lesson for 9 hours on weekdays and 3 hours on weekends
What is the value of x in:
3x + 2(x + 1) = 12?
A.12
B.6
C.10
D.2
Answer:
D
Step-by-step explanation:
3x + 2(x + 1) = 12 ← distribute and simplify left side
3x + 2x + 2 = 12
5x + 2 = 12 ( subtract 2 from both sides )
5x = 10 ( divide both sides by 5 )
x = 2 → D
d .2
d will be the answer
by simplify
Simplify the expression. 8.5 - 6.21
Answer:
2.29
Step-by-step explanation:
8.5-6.21
4 10
8.50
-6.21
2.29
i don't need the work just the answer!!
1 Which point has coordinates (2, 2)?
A. Point A
B. Point C
C. Point F
D. Point G
I NEED THIS NOW PLEASE HELP
Answer:
g
Step-by-step explanation:
Macey is considering the following jobs. She will earn commission at each job based on her estimated sales. How much would her earnings be at Job A?
9514 1404 393
Answer:
$1320
Step-by-step explanation:
The amount of commission is the product of the commission rate on sales and the amount of sales:
Job A commission = 0.12 × $11,000 = $1320
_____
It may help you to realize that the percent symbol (%) is fully equivalent to /100. That is 12% = 12/100 = 0.12.
A sandwich store chargers a $10 delivery fee, and $4.50 for each sandwich.
what is the total cost (sandwiches and delivery charge) if an office orders 6 sandwiches.
Formula (y=mx+b)
Answer:
$37
Step-by-step explanation:
Delivery fee- $10
each sandwich- $4.50
Sandwiches ordered- 6
4.50(6)+10=37
A cylinder has a radius of 5 cm, and a height of 10 cm. What is the
volume? Use 3.14 as it.
Answer:
785 cm³
Step-by-step explanation:
3.14x5x5x10=785
sasssssssssssssssssssssssssssssssssssss
Help meee please.........
Answer: B
x looks like .9 so if -.9 + 3 = -2.1 then you can see that's the answer on the number line, hope it helps, I'm 80% sure it's right
Can anybody help me with this one
9514 1404 393
Answer:
A(-8, 6), D(-1, -16), E(17, -3)
Step-by-step explanation:
Any point with an x-value that matches any of {-8, -1, 5, 15, 17} will prove Mariela's claim incorrect. (A function cannot use an x-value more than once.)
Those points are ...
(-8, 6), (-1, -16), (17, -3)
Write the equation of the line, in slope intercept form through the following two points
(-9,-1)
(4,0)
Answer:
y=1/13x - 4/13
Step-by-step explanation:
Just follow the slope intercept form formula-
Formula: y= mx+b
Key:
y = y-coordinate
m = slope
x = x-coordinate
b = y-intercept
Feel free to ask if you have any questions, hope this helps!(:
6 people picked yellow polish Find the percentage of customers that chose yellow polish.
Answer:
24%
Step-by-step explanation:
4 + 9 + 1 + 3 + 6 + 2 = 25
6/25 = .24 = 24%
An exponential function f(x)
= ab" passes through the points (0, 12000) and (2, 3000). What are the values of a and b ?
Given:
An exponential function [tex]f(x)=ab^x[/tex] passes through the points (0, 12000) and (2, 3000).
To find:
The values of a and b.
Solution:
We have,
[tex]f(x)=ab^x[/tex] ...(i)
It passes through the point (0,12000). Putting x=0 and f(x)=12000 in (i), we get
[tex]12000=ab^0[/tex]
[tex]12000=a(1)[/tex]
[tex]12000=a[/tex]
Given function passes through the point (2,3000). Putting x=2, a=12000 and f(x)=3000 in (i), we get
[tex]3000=12000b^2[/tex]
[tex]\dfrac{3000}{12000}=b^2[/tex]
[tex]\dfrac{1}{4}=b^2[/tex]
Taking square root on both sides.
[tex]\pm \dfrac{1}{2}=b[/tex]
For an exponential function b cannot be negative. So, [tex]b=\dfrac{1}{2}[/tex].
Therefore, the value of a is 12000 and the value of b is [tex]\dfrac{1}{2}[/tex].
I need help please, this is due today.
Answer:
-1
Step-by-step explanation:
Okay, i might be wrong..? I tried and this is what I got.
1. Solve the equation for x.
-3 (x+ 4) = 12
Answer:
x = -8
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
i had that on my test before
Plz help
Will mark brainliest
Answer:
(0,-1)
Step-by-step explanation:
(0,-1) will work because when you plug them is it is equivalent to 4
What’s the GCF of (45x power of 2) y, and (54xy power of 2)
Answer:
[tex]9xy[/tex]
Step-by-step explanation:
I suppose you're asking for the GCF of [tex]45x^2y[/tex] and [tex]54xy^2[/tex].
[tex]45x^2y = 3^2 \times 5 \times x^2 \times y\\54xy^2 = 2 \times 3^3 \times x \times y^2[/tex]
The GCF is [tex]3^2 \times x \times y = 9xy[/tex].
(8x2 + 5x – 9) - (3x2 – 5x + 1) = ?
Answer:
10x
Step-by-step explanation:
Help please.
Algebra.
Answer:
D.
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: −4
y-intercept: (0,4)
Answer:
D.) d
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: -4
y-intercept: (0,4)
x: 0 & 1
y: 4 & 0
Hence the answer is coordinate grid D.
A telemarketer earns a fixed amount for each call that he makes, as shown in
the graph below.
If the telemarketer makes 12 calls, how much will he earn in total?
A. $4.80
B. $9.60
C. $0.80
D. $1.20
Answer:
The answer is $9.60!
Step-by-step explanation:
Please help me for my math homework!!
Show your work too pleasee.
Answer:
a. Green
b. Blue
c. Red
d. Purple
(Just for clarification, m is the slope and b is the y-intercept.)
Kiran wants to know if there is more efficient way of solving the problem. Oriya says she can solve the problem with only 2 rows in the table. What do you think Priya's method is? Use the sketch to show work on how Prius would get their answer.
Answer:62.5
Hello
Step-by-step explanation:
1. 7.50 divided by 6 = 1.25 for 1 length of rope (Feet)
2.50x1.25=62.5
Hope this helped
Or I might be wrong Im not sure yet.