Answers
Answer:
It will be 63.9
Step-by-step explanation:
Trust me, I got it right
Answer:
63.6mm² (the last option)
Explanation:
the formula for calculating the area of a circle is πr², where r is the length of the radius.
in this case, we know that 9mm is the length of the diameter of the circle, so we can divide that by 2 to get 4.5mm for the length of the radius.
the question has instructed us to use 3.14 for π (pi), so we can substitute these values into the formula:
πr² = 3.14 × 4.5² = 63.585mm²
we can now round this to the nearest tenth to get 63.6mm², which would be the last option.
i hope this helps! :D
Related Questions
HELP DUE AT MIDNIGHT TN
Answers
Answer:
102
Step-by-step explanation:
These angles are congruent due to corresponding angles thm
3x + 21 = 6x - 60
3x - 6x = -60 - 21
-3x = -81
x = 27
3x + 21
3(27) + 21
81 + 21
102
Jennifer needs to make at least $325 to pay for a new Xbox. She already has $184 saved in her account. Which inequality can Jennifer use to find n, the amount of money she still needs to save to meet or exceed her goal?
Answers
184 + n >_ 235
Heidi lost an average of 4 pounds a month for five months. What was her total weight loss?
Answers
Answer:
20 lbs
Step-by-step explanation:
is heidi dieting cuz thats good!
4 lbs x 5 months = 20 lbs
Determine whether the data described in the tables is best modeled by a linear function or an exponential function.
Answers
Answer: Tigers: Linear Function
Narwhals: Linear Function
Leo has a lock box with a volume of 312 cubic inches. The box is 4 inches high and 13 inches long. What is the width of the box?
Answers
Answer:
6in
Step-by-step explanation:
Given data
Volume of the lockbox= 312 cubic inches
Height= 4in
Length= 13in
Width= ???
The expression for the volume of box is
V= L*W*H
substitute
312=13*W*4
312=52W
W= 312/52
W=6 in
Hence the width is 6in
Solve for x: 6x + 1 = -23
Answers
6x=-24
divide both sides by 6
X=-4
Answer:6x=-23 - 1
6x=-24
X=-4
Step-by-step explanation:
The rabbit population in Jefferson County, which is currently at 8,400 rabbits, is increasing by 5% each year. How many rabbits will there be in 7 years?
Answers
Answer:
11,340
Step-by-step explanation:
5% = 420 420 x 7 = 2940
2940 + 8400 = 11,340
(d)
2 m
-10 m
6 m
4 m
15 m
14 m
20 m
Answers
Answer:
its d
Step-by-step explanation:
Carlos has 2.6 meters of wire. He has 3 projects for which he needs 0.9 meters each. Does carlos have enough wires?
Answers
Answer: Carlos does not have enough wires by 0.1 meters
Step-by-step explanation:
To determine if Carlos has enough wires, you need to find out the total amount of wires needed and then compare this to the amount of wires that Carlos has already.
= 0.9 + 0.9 + 0.9
= 2.7 meters
Carlos has 2.6 meters of wire but needs 2.7 meters.
Carlos therefore, does not have enough wires.
Consider a quadratic equation with integer coefficients and two distinct zeros. If one zero is irrational, what is true about the other zero
Answers
Answer:
Step-by-step explanation:
irrational roots always occur in pairs.
Other root is also irrational and is negative of first zero.
If a quadratic equation with integer coefficients and two distinct roots have one irrational root then another root is also irrational .
What is quadratic equation ?Any equation of the form [tex]ax^{2}+bx+c=0[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .
Let assume quadratic equation is
[tex]ax^{2}+bx+c=0[/tex]
Given that coefficients are integer and roots are distinct
we know root of quadratic equation are
[tex]x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}[/tex]
As roots are distinct
[tex]b^2-4ac > 0\\[/tex]
and one root is irrational so [tex]b^2-4ac[/tex] is not a perfect square
Hence another root is also irrational .
If a quadratic equation with integer coefficients and two distinct roots have one irrational root then another root is also irrational .
To learn more about quadratic equations visit : https://brainly.com/question/1214333
Can someone help me with math and thanks .!
Answers
Answer:
Step-by-step explanation:
1. A: 147 Degrees B: 33 Degrees
2. A: 121 Degrees B: 59 degrees
It would be the same as the other side.
Please help me with math!!!!!
Answers
Answer:
We need for inforamtion like what is the volume for both of the shapes
Step-by-step explanation:
please can anyone help me??
Answers
Answer:
140 DEGREES
Step-by-step explanation:
160-20=140
X = 20 degree
Now, as x is to be increase by 20 degree
The new angle is 40 degrees
What’s is 3+4+8+9+2+5+6+7=
Answers
Answer:
44
Step-by-step explanation:
I just used mental math soooo.......
have a great day luvs <3
Answer:
44
Step-by-step explanation:
3+4+8+9+2+5+6+7=
7+8+9+2+5+6+7=
15+9+2+5+6+7=
24+2+5+6+7=
26+5+6+7=
31+6+7=
37+7= 44
44 = 44
I need help I'm confused.
Answers
Answer:
ok
Step-by-step explanation:
If f(x) = 3LX-2], what is f(5.9)? 9 10 11 12
Answers
Answer: 12
Step-by-step explanation:
We know that , the ceiling function y = [x] is also known as the least integer function that gives the smallest integer greater than or equal to x.
For example : For x= 1.5
y = [1.5] =2
For x= 3.64
y = ⌊3.64⌋=4
The given function :
Then, for x= 5.9 , we have
[since [3.9]=4 (least integer function)]
Therefore, the value of f(5.9) is 12
The value of the function f(5.9) will be 12. The correct option is D.
What is a function?In mathematics, a function is a rule that assigns a unique output value to each input value in a specified domain. A function is often denoted by a letter such as f, and we write f(x) to represent the output value associated with an input value x.
We know that the ceiling function y = [x] is also known as the least integer function that gives the smallest integer greater than or equal to x.
For example: For x= 1.5
y = [1.5] =2
For x= 3.64
y = ⌊3.64⌋=4
The given function :
Then, for x= 5.9, we have
F[3.9]=4 (least integer function)]
Therefore, the value of f(5.9) is 12.
To know more about function follow
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for f(x) = 5x - 7 and f(x) = -3, what is the value of x
Answers
Answer:
Step-by-step explanation:
hello :
f(x) = 5x - 7 and f(x) = -3
5x - 7 = -3
5x=7-3
5x=4
x=4/5
Answer:
x = 4/5
Step-by-step explanation:
5x - 7 = -3
5x = -3 + 7
5x = 4
x = 4/5
Check:
5*4/5 - 7 = -3
4 - 7 = -3
Please help I will give brainliest
Answers
because a closed dot means included and it is going higher than -6 so it is greater than
Answer:
x ≥ -6
Step-by-step explanation:
The arrow is directing towards the right, in which the line contains number greater than -6. Moreover the circle on top of -6 is closed, proving that it is 'greater than or equal to'. (if it was greater than, the circle on top of the number would be open; the inner part of the circle wouldn't be shaded)
Cho has sold 28 bags and his goal is to sell 100 bags write an inequality to show how many more bags he needs to sell
Answers
Answer:
x ≤ 72
He needs to sell 72 more bags.
Step-by-step explanation:
Cho has sold 28 bags and his goal is to sell 100 bags write an inequality to show how many more bags he needs to sell
Let x represent the number of bags he needs to sell
28 + x ≤ 100
x ≤ 100 - 28
x ≤ 72
Therefore he needs to sell 72 more bags.
Use synthetic division to divide x^3-8x^2+9x-5 by x-3
Answers
Answer:
x^2 - 6x - 6, remainder -23
Step-by-step explanation:
Start like this:
3 | 1 -8 9 -5
|
--------------------------------
First step is to copy the 1 to below the line.
3 | 1 -8 9 -5
|
--------------------------------
1
Now multiply 3 by 1 and write below the -8. Then add the product to the -8 and write the sum below the line.
3 | 1 -8 9 -5
| 3
--------------------------------
1 -5
Now multiply 3 by -5 and write below the 9. Then add the product to the 9 and write the sum below the line.
3 | 1 -8 9 -5
| 3 -15
--------------------------------
1 -5 -6
Now multiply 3 by -6 and write below the -5. Then add the product to the -5 and write the sum below the line.
3 | 1 -8 9 -5
| 3 -15 -18
--------------------------------
1 -5 -6 -23
Answer: x^2 - 6x - 6, remainder -23
The solution is, x^2 - 6x - 6, and, the remainder -23.
What is division?Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
divide x^3-8x^2+9x-5 by x-3
Start like this:
3 | 1 -8 9 -5
|
--------------------------------
First step is to copy the 1 to below the line.
3 | 1 -8 9 -5
|
--------------------------------
1
Now multiply 3 by 1 and write below the -8. Then add the product to the -8 and write the sum below the line.
3 | 1 -8 9 -5
| 3
--------------------------------
1 -5
Now multiply 3 by -5 and write below the 9. Then add the product to the 9 and write the sum below the line.
3 | 1 -8 9 -5
| 3 -15
--------------------------------
1 -5 -6
Now multiply 3 by -6 and write below the -5. Then add the product to the -5 and write the sum below the line.
3 | 1 -8 9 -5
| 3 -15 -18
--------------------------------
1 -5 -6 -23
Hence, Answer: x^2 - 6x - 6, remainder -23
To learn more on division click:
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How many points need to be removed from this graph so that it will be a function?
Answers
5. What is the slope of this graph?
a) m = 2/3
b) m = -2/3
c) m = 3/2
d) m = -3/2
6. What is the slope of this graph?
a) m = 2/3
b) m = -2/3
c) m = 3/2
d) m = -3/2
Answers
answers for 5 and 6
5) C
6) B
Step-by-step explanation:
hope this helped
0f the 64 students in grade five, 3/8 of them either walk or ride a bike to school. The rest take a bus. How many fifth graders take a bus to school? *
Answers
If sally invests $400 into the Bank of Reyonds that offers her a 6% interest, compounded monthly, how much money will she have in the bank in 5 years?
Answers
Given:
Principal = $400
Rate of interest = 6% compounded monthly
Time = 5 years.
To find:
The amount in the bank after 5 years.
Solution:
The formula for amount is:
[tex]A=P\left(1+\dfrac{r}{n}\right)^{nt}[/tex]
Where, P is principal, r is the rate of interest, n is the number of time interest compounded in an year and t is the number of year.
Interest compounded monthly. So, [tex]n=12[/tex].
Putting [tex]P=400, r=0.06, n=12[/tex] and [tex]t=5[/tex], we get
[tex]A=400\left(1+\dfrac{0.06}{12}\right)^{12(5)}[/tex]
[tex]A=400\left(1+0.005 \right)^{60}[/tex]
[tex]A=400\left(1.005 \right)^{60}[/tex]
[tex]A\approx 539.54[/tex]
Therefore, the amount of money in the bank after 5 years is $539.54.
Which phrase represents the algebraic expression for n – 4?
A. The quotient of a number and four.
B. Four less than a number.
C. Four minus a number.
D. Four more than a number.
Answers
Step-by-step explanation:
B. Four less than a number.
the perimeter of a rectangle is (10x2).if it's width is (2x-1),which expression represents the length
a.5x-2
b.3x+2
c.8x+3
d.12x+1
Answers
Answer: b. 3x + 2
Step-by-step explanation:
2l + 2w = p
2l + 2(2x - 1) = 10x + 2
2l + 4x - 2 = 10x + 2
2l = 6x + 4
l = 3x + 2
A corner store sells two kinds of baked goods: cakes and
pies. A cake costs $11 and a pie costs $6. In one day, the
store sold 9 baked goods for a total of $84. How many
cakes did they sell?
Answers
Answer:
They sold 4 cakes
and 5 pies...
Step-by-step explanation:
four cakes cost $44 and 5 pies cost $30
44+30= 84
really I just used trial and error by plugging in numbers.
hope this helps chu <3
Caylee buys an item that is $15.00, and uses a 10% off coupon. How much does she save by using the coupon? *
Answers
Answer:
Caylee saved $1.5 by using the coupon.
Step-by-step explanation:
In order to find the amount that Caylee saved by using the coupon, you have to calculate 10% that is the discount percentage of the price of the item which is $15:
$15*10%=$1.5
According to this, the answer is that Caylee saved $1.5 by using the coupon.
find the mode for data set 3, 2, 8, 5, 1, 4, 4, 3, 4, 5,
Answers
Answer:
Mode is 4
Step-by-step explanation:
Plz help
Rewrite the fraction in the sentence below as a percentage.
In 2010, a fire destroyed
3/10 of the farmer's crops.
Answers
Answer: 30%
Step-by-step explanation:
Method 1:
The original fraction is [tex]\frac{3}{10}[/tex]
To convert to a percent, the denominator should be equal to 100 (since percent is per 100)
Multiply the top and bottom by 10
[tex]\frac{3}{10} * \frac{10}{10} = \frac{30}{100}[/tex]
Since the numerator is 30, 3/10 as a percent is 30%
Method 2:
The original fraction is [tex]\frac{3}{10}[/tex]
To convert to a percent, first convert the fraction to a decimal (do 3 ÷ 10)
0.3
10 | 3 0
-30
-------------
0
You get 0.3
Now multiply the decimal by 100
0.3 * 100 = 30
30%
Method 3:
The original fraction is [tex]\frac{3}{10}[/tex]
[tex]\frac{3}{10} = \frac{x}{100} \\10x = 300\\x = 30[/tex]
cross-multiply to solve the equation
30%