Step-by-step explanation:
Given
x = 3
Then
2x +1
= 2 * 3 + 1
= 6 + 1
= 7
Hope it will help :)
A road roller with a 55-inch
diameter is traveling at
3 miles per hour. How many
revolutions per minute is
the roller turning? Round
your answer to the
nearest tenth
Answer:
18.34times
Step-by-step explanation:
the explanation is given in the pictures...
The road roller is turning at the rate of [tex]18.3rev/minute[/tex]
To get our answer, first note that
[tex]speed=\dfrac{distance}{time}[/tex]
since the distance travelled by the road roller can be gotten by
[tex]distance= circumference\times revolutions[/tex]
our speed formula can be expressed as
[tex]speed=\dfrac{circumference\times revolutions}{time}[/tex]
making the number of revolutions the subject of the formula, we get
[tex]revolutions=\dfrac{speed \times time}{circumference}[/tex]
carrying out the following substitutions
[tex]speed=3miles/hour=\frac{3\times63360}{60}inches/minute=3168inches/minute\\time=1minute\\circumference=2\times3.14\times\frac{55}{2}=172.7inches[/tex]
we can now calculate the number of revolutions
[tex]revolutions=\dfrac{speed\times time}{circumference}\\\\=\dfrac{3168\times 1}{172.7}\approx18.3rev/minute\text{ (to the nearest tenth)}\\\\[/tex]
Learn more about circumference of circles here https://brainly.com/question/5688156
Which expression is equivalent to(60)^2-(12)^2?
(60 – 12)^2
(60 - 12) (60 - 12)
(60 + 12)(60 – 12)
(60 + 12)^2
Answer:
The answer is
[tex] {60}^{2} - {12}^{2} \\ = (60 - 12)(60 + 12)[/tex]
Step-by-step explanation:
I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028
Answer:
the answer is b
Step-by-step explanation:
(60-12)(60-12)
what is 22 in centermeters
Answer:
22 feet in centimeters is 670.56
22 inch in centimeters is 55.88
Step-by-step explanation:
find p(-1) p(1) if p(x) = X2+1
Answer:
p(- 1) = 2 and p(1) = 2
Step-by-step explanation:
Substitute x = - 1 and x = 1 into p(x), that is
p(- 1) = (- 1)² + 1 = 1 + 1 = 2
p(1) = 1² + 1 = 1 + 1 = 2
-8(2x) + 5(2x - 12) + -2(5y - 2) + (-3) (3y)
PLEASE HELPP I NEED IT A S A P WILL MARK BRAINLIESTTTT!!!!!
Answer:
-6x - 19y - 56Step-by-step explanation:
Simplify:
-8(2x) + 5(2x - 12) + -2(5y - 2) + (-3) (3y) =-16x + 10x - 60 - 10y + 4 - 9y = x(-16 + 10) + y(-10 - 9) + (-60 + 4) = x(-6) + y(-19) + (-56) =-6x - 19y - 56Answer:
−6x−19y−56
Step-by-step explanation:
−8(2x)+5(2x−12)+−2(5y−2)+(−3)(3y)
Multiply −8 and 2 to get −16. Multiply −3 and 3 to get −9.
−16x+5(2x−12)−2(5y−2)−9y
Use the distributive property to multiply 5 by 2x−12.
−16x+10x−60−2(5y−2)−9y
Combine −16x and 10x to get −6x.
−6x−60−2(5y−2)−9y
Use the distributive property to multiply −2 by 5y−2.
−6x−60−10y+4−9y
Add −60 and 4 to get −56.
−6x−56−10y−9y
Combine −10y and −9y to get −19y.
−6x−56−19y
The sum of two numbers is x If one of the numbers is 12, what is the other?
12 x
12- *
12 + x
x-12
please help i have no clue how to solve
Answer:
im sorry i dnt know i try doing these things on my own but i cant lol :(
Step-by-step explanation:
Answer:
1. doesn't
2. satisfy
Step-by-step explanation:
A, B, C, and D are four points in a circle. AC and BD intersect at a point E such that angle BEC = 130° and angle ECD = 20°. Find BAC
Answer:
30
Step-by-step explanation:
180 - 130 = 50 - 20 = 30 so only 30 can come hope it helps
What is the answer for that question please
silvia compro la misma licuadora que daniela, que costaba $355.5, pero como abonó con tarjeta de credito, le recargaron un 16%, ¿cuanto pago silvia?
Answer:
Costo final= $412.38
Step-by-step explanation:
Dada la siguiente información:
Costo inicial= $355.5
Recargo de la tarjeta= 16% = 0.16
Para calcular el costo final que debe pagar Silvia, debemos usar la siguiente información:
Costo final= costo inicial*(1 + recargo)
Costo final= 355.5*1.16
Costo final= $412.38
what is 5/15 × 2/12? what is the answer
Answer:
1/18
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
Conversion a mixed number 3 3/
4
to a improper fraction: 3 3/4 = 3 3/
4
= 3 · 4 + 3/
4
= 12 + 3/
4
= 15/
4
To find new numerator:
a) Multiply the whole number 3 by the denominator 4. Whole number 3 equally 3 * 4/
4
= 12/
4
b) Add the answer from previous step 12 to the numerator 3. New numerator is 12 + 3 = 15
c) Write a previous answer (new numerator 15) over the denominator 4.
Three and three quarters is fifteen quarters
Conversion a mixed number 2 2/
5
to a improper fraction: 2 2/5 = 2 2/
5
= 2 · 5 + 2/
5
= 10 + 2/
5
= 12/
5
To find new numerator:
a) Multiply the whole number 2 by the denominator 5. Whole number 2 equally 2 * 5/
5
= 10/
5
b) Add the answer from previous step 10 to the numerator 2. New numerator is 10 + 2 = 12
c) Write a previous answer (new numerator 12) over the denominator 5.
Two and two fifths is twelve fifths
Multiple: 15/
4
* 12/
5
= 15 · 12/
4 · 5
= 180/
20
= 9 · 20/
1 · 20
= 9
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(180, 20) = 20. In the next intermediate step , cancel by a common factor of 20 gives 9/
1
.
In words - fifteen quarters multiplied by twelve fifths = nine.
h(x) = x2 + 4x?; Find 1(-6)
Answer:
h(-6)=(-6)²+4×(-6)=36-24=12
6. Isosceles trapezoid SAND has diagonals SN = 5w + 13 and AD = 11w - 5. . Determine the value of w.
Answer:
3
Step-by-step explanation:
x2 + 7x + 12
What is the answer someone please help
Answer:
(x + 3) (x + 4)
what is the variable and inequality to this question
A parallelogram has a height of 14 in and a base
that is 2 in long. What is the area of this
parallelogram?
HURRY PLEASE
Answer:
28 in^2
Step-by-step explanation:
Given,
Height of the parallelogram = 14 in
Base of the parallelogram = 2 in
Therefore, area of the parallelogram = base × height
= 2 in × 14 in
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 28 {in}^{2} (ans)[/tex]
The temperature at 12 am was 44 degrees. The temperature dropped steadily for the next 8 hours to reach the daytime low of 20 degrees. Solve for the hourly temperature change.
Answer:
-3 degrees per hour
Step-by-step explanation:
Points: (12,44) and (20,20)
Slope = -3
find the length of each side of a square plot having 172m.
Is 172 the area or perimeter.
find the area plzz!!
Answer:
[tex]68 {cm}^{2} [/tex]
Step-by-step explanation:
see attached picture
What is the inverse of the function shown (in coordinate points)?
Answer:
(4,-1) (-2,-6)
Step-by-step explanation:
Hope this helps
simple math true and false. not that hard. 11th grade math though
Answer:
True
Step-by-step explanation:
If my eyes don’t fail me, it‘s true.
Sorry in advance if it’s wrong :<
Answer: True
Step-by-step explanation:
6- Karen is making a frame for a square picture with an area of 169 square inches. How
many inches of framing are needed?
a) 13
b) 14
c) 15
d) 16
PLEASE HURRY! I WILL MARK YOU BRAINLIST OR WHATEVER... IF YOU DO IT PLEASE
Answer: a
Step-by-step explanation:
Tell me if it is correct
x=a-2by^2
Make “y” as a subject
Answer:
Let’s assume a,b,x real. Then all we require of y is y2 is real, so y
can be real or purely imaginary, but not an arbitrary complex number.
The hard question in these is always, do we need ±
? Here the answer is yes. It’s basically asking is there one solution or two, and in this problem we have two.
Solve for y
: x=a−2by2
Step-by-step explanation:
which expression is equivalent?
Answer:
The second one .......
HELP ASAP The side lengths of a triangle are 9, 12, and 18. Is this a right triangle?
A. No, because 9+12+18.
B. No, because 92 + 122 #182.
C. Yes, because 92 + 122 = 182.
D. Yes, because 92 + 122 < 182.
Answer:
B) 9² + 12² ≠ 18²
Step-by-step explanation:
Answer:
9² + 12² ≠ 18²
Step-by-step explanation:
Pls help due like- right on
Natalie is shopping for new clothes and does not want to spend more than $65. She buys one dress for $26 and wants to buy a few shirts that cost $13 each.
What is the maximum number of shirts she can buy?
Answer:
Step-by-step explanation:
3 shirts
O.405 as a fraction
Answer:
[tex] \frac{405}{1000 } [/tex]
Answer:
81/200
Step-by-step explanation:
After decimal point, there are 3 decimal places.
[tex]0.405 = \frac{405}{1000}[/tex]
Now, reduce to simplest form
[tex]\frac{405}{1000}=\frac{81}{200}[/tex]
The trapezoids are similar. In the figure below KLMN ~ WXZY. What is the value of b?
What is the answer to this question
Answer:
The fourth number line
Step-by-step explanation:
it is the right because you need move 7 limes to the left
Find 23.2% of 62. Round to the nearest hundredth.
Answer:
The answer is about 14.38
Step-by-step explanation:
hope this helps
