Answer:
r =71.96 or 72
Step-by-step explanation:
C=2[tex]\pi[/tex]r
452.16=2[tex]\pi[/tex]r
divide by 2[tex]\pi[/tex]
71.96 =r
evaluate 4 a + 5 b when a=3 and b= -1.2
Answer:
6
Step-by-step explanation:
Plug the values of a and b into the equation.
4(3) + 5(-1.2)
12 + (-6)
Adding negatives basically means subtracting, so...
12-6 = 6
Therefore your answer is 6
Hope this helps!
Answer:
6
Step-by-step explanation:
4 a + 5 b
a=3 and b= -1.2
4(3) +5(-1.2)
12 +-6
6
Which statement is true for the numbers 2.5 and -2.5? A. On the horizontal number line, 2.5 and -2.5 are equal and are located on the same point. B. On the horizontal number line, -2.5 is located to the left of zero and 2.5 is located to the right of zero. C. On the horizontal number line, 2.5 and -2.5 are both located to the right of zero. D. On the horizontal number line, 2.5 is located to the left of zero and -2.5 is located to the right of zero.
Answer:B
Step-by-step explanation: because when u draw the number line all the negative numbers is written at the left side of the zero and all positive numbers are found at the right side of the zero
Answer: I believe it’s B
Step-by-step explanation:
1. A right triangle has legs that measure 5 meters and 12 meters. What is the length
of the hypotenuse?
A. 7 meters
B. 10.9 meters
C. 13 meters
D. 17 meters
What answer should I pick
Answer: C. 13 meters
Step-by-step explanation:
5^2+12^2=x^2
25+144=x^2
169=x^2
√169=13
13=x
Hope it helps
Answer:
C. 13 meters
Step by step:
5^2+12^2=x^2
25+144=x^2
169=x^2
√169=13
13=x
please help thank you
Answer:
y=5x+15
Step-by-step explanation:
We get y=5x+15 since she charges a one time fee of $15 and $5 every hour.
Answer:
Answer D
Step-by-step explanation:
what is the length of this line? khan academy - Distance between two points
Answer:
D = √[(x2 - x1)² + (y2 - y1)²]
Step-by-step explanation:
Given a right-angled triangle, with sides: Hypotenuse D, and opposites (x2 - x1) and (y2 - y1).
Then by Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the opposite side.
That is,
D² = (x2 - x1)² + (y2 - y1)²
Now, taking square roots of both side, we have the formula for the distance or length D.
D = √[(x2 - x1)² + (y2 - y1)²]
In 1995 the USPS approximated that they handled 1.8 x 10^11 pieces of mail. In 2010 the USPS reported that they handled 1.7x10^11 pieces. How many more pieces of mail were handled in 1995 than 2010
Answer:
[tex]1 \times 10^{10}[/tex] more pieces of mail were handled in 1995 than in 2010.
Step-by-step explanation:
We are given that in 1995, the USPS approximated that they handled [tex]1.8 \times 10^{11}[/tex] pieces of mail and in 2010, the USPS reported that they handled [tex]1.7 \times 10^{11}[/tex] pieces.
To find how many more pieces of mail were handled in 1995 than in 2010, we do subtraction of the pieces of mail that were handled in both the years.
Pieces of mail handled in 1995 = [tex]1.8 \times 10^{11}[/tex]
Pieces of mail handled in 2010 = [tex]1.7 \times 10^{11}[/tex]
As it is clear that more pieces of mail were handled in 1995.
So, Pieces of mail handled in 1995 - Pieces of mail handled in 2010 = [tex](1.8 \times 10^{11}) -(1.7 \times 10^{11})[/tex]
= [tex]10^{11} \times (1.8 -1.7)[/tex]
= [tex]10^{11} \times 0.1[/tex] = [tex]1 \times 10^{10}[/tex]
Hence, [tex]1 \times 10^{10}[/tex] more pieces of mail were handled in 1995 than in 2010.
Which linear inequality is represented by the graph?
Answer:
B. y <= 1/3 x - 4
Step-by-step explanation:
The line has y-intercept -4.
The slope is
m = rise/run = 1/3
The equation of the solid line is
y = 1/3 x - 4
Since the line is solid, we need >= or <=.
Since the shading is below the line, we use <=.
Answer: y <= 1/3 x - 4
3(x - 2) + 2 = 5(x - 3) + 9 por fa
Answer:
x = 1
Step-by-step explanation:
Given
3(x - 2) + 2 = 5(x - 3) + 9 ← distribute and simplify both sides
3x - 6 + 2 = 5x - 15 + 9
3x - 4 = 5x - 6 ( subtract 5x from both sides )
- 2x - 4 = - 6 ( add 4 to both sides )
- 2x = - 2 ( divide both sides by - 2 )
x = 1
A cylindrical tank contains 180000cm of water.
The radius of the tank is 45 cm.
Calculate the height of water in the tank. there is no ball
Answer:
28.29 cm
Step-by-step explanation:
The formula for the cylinder is πr²h.
180000 = π(45)²h
180000 = 6361.725124h
h = 28.294212
The height is 28.29 cm.
Last Year Boris paid £256 for his car insurance This year he has to pay £894 for his car insurance Work out the percentage increase in the cost of his car insurance
Answer:
%∆C = 249.22%
the percentage increase in the cost of his car insurance is 249.22%
Step-by-step explanation:
Given;
Cost of car insurance last year C1 = £256
Cost of car insurance this year C2 = £894
Percentage increase = change in cost/initial cost × 100%
%∆C = ∆C/C1 × 100%
%∆C = (C2-C1)/C1 × 100%
Substituting the given values;
%∆C = (894-256)/256 × 100%
%∆C = 249.21875%
%∆C = 249.22%
the percentage increase in the cost of his car insurance is 249.22%
The directed line segment from L to N has endpoints L(–6, 2) and N(5, –3). What are the x- and y-coordinates of point M, which partitions the directed line segment into the ratio 2:5?
Answer:
the answer is -6, 2
Step-by-step explanation:
Answer:
the answer is -6, 2
Step-by-step explanation:
Answer:
ANSWER
x = { - 20}{7}
y={ 4}{7}
Step-by-step explanation:
Estimate using mental math: 87.4 x 26.67. Show how you would estimate mentally, then show your estimated answer.
Answer:
2,330.950
Step-by-step explanation:
Like I said before, I usually use my fingers.
But, I usually would do a sheet of paper and pencil in my head.
I then would try to sole it.
So I multiply 87.4 x 26.67.
I think it would be around 2,330.950.
I hope this helped.
Answer:
Step-by-step explanation:
I would try and divide them to help me solve it first and get 2330.950
what is the answer to 4 x 3+2n
DoomPlayz Needs 100$ for a special gift for his teacher...His Dad Gives Him 39... How Many More Does DoomPlayz Need For His Gift?
Answer:
61.
Step-by-step explanation:
because 100-39=61 and 61+39=100!
Who want 20 points answer and it gotta be right
3 to the power of 14
Step-by-step explanation:
you need to add the exponents together. When you multiply exponents you actually add them.
so [tex]3^{14}[/tex] is your answer.
or 4783969 if you solve the whole thing
i hope this helps
Answer:
3 to the power of 14
Step-by-step explanation:
Which interval for the graphed function contains the local maximum?
Step-by-step explanation:
since maxima is a point in which a function within a range gives maximum value. And its value is called maximum value of the function over an interval.
An 8-sided fair dice is rolled twice and the product of the two numbers obtained when the dice is rolled two times is calculated.(a) Draw the possibility diagram of the product of the two numbers appearing on the dice in each throw (b) Use the possibility diagram to calculate the probability that the product of the two numbers is I) A prime number ii) Not a perfect square iii) A multiple of 5 iv) Less than or equal to 21 v) Divisible by 4 or 6
Answer:
1.) Kindly check attached picture for possibility diagram
(2)
1) 0.125 2)0.963 3.)0.234 4.)0.625 5.)0.656
Step-by-step explanation:
Probability = required outcome / Total possible outcomes
1) P(product is a prime number)
Appearance of prime numbers = 8 times
P(product is a prime number) = 8/64 = 0.125
2.) P(not a perfect square) = 1 - p(perfect square)
1 - (12/64) = 52/54 = 0.963
3.) P(a multiple of 5) = 15/64 = 0.234
4.)P(less than or equal to 21) = 40/64 = 0.625
5.)P(divisible by 4 or 6) = 42/64 = 0.656
The expression below is a sum of cubes.
64x3 + 125
O A. True
O B. False
Answer:
true it's A....
Answer:
A
Step-by-step explanation:
64x³ + 125
∛(64x³ + 125)
= 4x + 5
The expression is a sum of cubes.
Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), she drove at a constant speed to get to the safe zone that was 160 meters away. After 3 seconds of driving, she was 85 meters away from the safe zone. Let D represent the distance (in meters) from the safe zone after t seconds. Complete the equation for the relationship between the distance and number of seconds. D=
Answer:
The answer is D(t) = 160 - 25t
Step-by-step explanation:
well khan academy said it lol
Suppose that y varies directly with x
and y = 5 when x = 6. What is y
when x = 5?
Answer:
y=25/6
Step-by-step explanation:
We can set up a proportion!
We know that y/x=y/x because they vary directly.
So, we have 5/6=y/5. We need to solve for y.
We cross multiply and get:
6y=25
y=25/6
When x equals 5, y will equal 25/6.
Hope this helps
Aliyah wants to estimate the value of the quotient of 5.68 times 10 Superscript negative 3 and 8.54 times 10 Superscript negative 9. Which statement about the value is true? The value will be greater than 1 because (negative 3) divided by (negative 9) is a positive number. A number in scientific notation with a positive exponent has a value greater than 1. The value will be greater than 1 because (negative 3) minus (negative 9) = 6. A number in scientific notation with a positive exponent is greater than 1. The value will be less than 1 because 5.68 divided by 8.54 is less than 1. The negative exponents will make it even smaller. The number will be less than 1 because 5.68 times 10 Superscript negative 3 is a very small number and division always makes the size of a number smaller.
Answer:
b
Step-by-step explanation:
Answer:
b or The value will be greater than 1 because (negative 3) minus (negative 9) = 6. A number in scientific notation with a positive exponent is greater than 1.
Step-by-step explanation:
The difference of twice a number and five is three. For the scenario above, which situation best describes the steps necessary to solve for the unknown number?
Answer:
4
Step-by-step explanation:
2x - 5 = 3
2x = 8
x = 4
4
Answer:
k
Step-by-step explanation:
The product of 3 and a number is 33. What is the number?
Answer:
11
Step-by-step explanation:
3x = 33
x = 33/3
x = 11
Answer:
The number is 11
Step-by-step explanation:
Product means multiply, is means equals
3 * n = 33
Divide each side by 3
3n/3 = 33/3
n = 11
In the similar triangles below, what is the length of AC?
Answer:4
Step-by-step explanation:
Please help I don't understand
Answer:
C
Step-by-step explanation:
i just took the test
Find the function that describes the graph of f( x ) = | x | translated 2 units to the right. (Need answer in less than 2 hours!)
Answer: (c) g(x) = |x - 2|
Step-by-step explanation:
Consider h(x) = |x - h| + k
h represents the horizontal shift (positive=Right, negative=Left)k represent the vertical shift (positive=Up, negative=Down)f(x) = |x|
g(x) = |x - (+2)|
↓
positive means to the right
simplify: g(x) = |x - 2|
work out 4/9 + 2/9 and simplify where possible (it isnt 6/9)
Answer:
2/3
Step-by-step explanation:
4/9+2/9=6/9
then you have to reduce/simply your answer more from 6/9
divide each number by 3 and that with give you your answer 2/3.
6÷3=2 and 9÷3=3
Adding fractions with same denominator
The value of expression 4/9 + 2/9 would be equal to 2/3
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
We are given an expression as;
4/9 + 2/9
Here we need to add the two fractions.
The denominator of the given fraction must be same to add the terms.
4/9 + 2/9
So,(4 + 2)/9
6/9
Now simplify;
6/9 = 2/3
More about the Algebra link is given below.
brainly.com/question/953809
#SPJ2
can i have some help please?
Answer:
42°
Step-by-step explanation:
given OA and OC are perpendicular, the angle between the lines are 90°
this means that ∠AOB and ∠BOC add up to 90°, i.e.
(6x-6) + (5x+8) = 90
6x-6 + 5x+8 = 90
11x - 6 +8 = 90
11x + 2 = 90 (subtract 2 from both sides)
11x = 90- 2
11x = 88 (divide both sides by 11)
x = 8
Hence, m∠BOC
= 6x - 6
= 6(8) - 6
= 48 - 6
= 42°
Ellen mixed \dfrac1{4}\text{ kg} 4 1 kgstart fraction, 1, divided by, 4, end fraction, start text, space, k, g, end text of flour with \dfrac{2}{9}\text{ kg} 9 2 kgstart fraction, 2, divided by, 9, end fraction, start text, space, k, g, end text of sugar. Determine a reasonable estimate for the amount of flour and sugar combined.
Answer:
17/36 kgStep-by-step explanation:
If Ellen mixed [tex]\frac{1}{4}[/tex]kg of flour with [tex]\frac{2}{9} kg[/tex] of sugar together, the reasonable estimate for the amount of flour and sugar combined can be gotten by taking the sum of both masses of ingredients as shown;
Mass of flour = [tex]\frac{1}{4}kg\\[/tex]
MAss of sugar = [tex]\frac{2}{9} kg[/tex]
Combined masses = [tex]\frac{1}{4}+\frac{2}{9}[/tex]
[tex]= \frac{9+8}{36} \\= \frac{17}{36}kg[/tex]
The amount of flour and sugar combined is 17/36 kg
A t-shirt increased in price by 14. After the increase it was priced at £30. What was the original price of the t-shirt?
Answer:
Either £16 or £26.32 depending on what you meant in the question
Step-by-step explanation:
I'm going to answer the question in 2 ways, since I'm not sure if you mean £14 or 14%
If its £14, then the original price is 30-14 = £16
If its 14% then that means after the increase, the shirt will be 100%+14% of the original price or 114% of the original price.
This means that
£30 = 114%
To make it easier, reduce the 114% to 1 %
1% = 30/114
1% = £0.26316
100% = £26.32 (rounded to 2 decimal places)
Therefore the original price was £26.32
