Select all equations that are true. O A. 9.21 x 1000 = 921 O B. 9. 21 x 10 = 92.1 O. C. 0.921 x 100 = 921 O D. 0.921 x 104 = 9,210 I E. 0.0921 x 102 = 9.21
what is the slope in y=_5x+10
15. The diameter of a circle is given as 10 cm, correct to the nearest cm. Calculate:
a) the maximum possible circumference
b) the minimum possible area of the circle consistent with this data
Answer:
10cm correct to nearest cm" means the diameter could be arbitrarily close to (but less than) 10.5 cm. So the maximum possible circumference is 10.5π cm.
"10cm correct to nearest cm" also means that the diameter could be arbitrarily close to (but greater than) 9.5 cm. So the minimum possible area is π(9.5)²/4 cm²
How many ways can eight letters be arranged into groups of five where order matters and the first two letters are already chosen?
100
120
240
720
Answer:
120
Step-by-step explanation:
There are 120 ways can eight letters be arranged into groups of five where order matters and the first two letters are already chosen.
What is Combination?A combination is a technique to determines the number of possible arrangements in a collection of items where the order of the selection does not matter.
Since, we're dealing with a problem where the order matters and the first two letters are already chosen we need to subtract the number of letters and the number of available slots per group.
Here, We use the permutation formula to find the answer, but before that let's check values.
n = 8
k = 5
Now since there are two letters already chosen we have to deduct two from both the value of n and k.
n = 6
k = 3
Hence, we can use the permutation formula:
P (n, k) = n! / (n - k)!
P (6, 3) = 6! / (6 - 3)!
P (6, 3) = 120
Thus, There are 120 ways can eight letters be arranged into groups of five where order matters and the first two letters are already chosen
Learn more about the combination visit:
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5) Select the best method to solve the system.
-2x+3y=8
2x+5y=10
*elimination
*substitution
Answer:
elimination
Step-by-step explanation:
EASY QUESTION!!Example 3:
A soccer ball will not move until a player kicks it.
Group of answer choices
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Give evidence or explain your reasoning for your answer to example #3:
Answer:
this is Newton's first law
Step-by-step explanation:
the soccer ball when kicked keep going forward until friction a person or another object like a wall stops it when the soccer ball is resting non-moving on the ground or stay like that until someone kicks it or another Force acts upon it
help me please !!!!!!!
Answer:
6
Step-by-step explanation:
what is the slope of the graph?
Answer:-6
Step-by-step explanation:
Help please! I’m really confused
Answer:
f(3) = -2
General Formulas and Concepts:
Reading a Cartesian PlaneReading coordinatesStep-by-step explanation:
f(3) simply means that the x values equals 3. x = 3
The question is asking for the y-value when x = 3.
According to the graph, when x = 3, y = -2.
Therefore, f(3) = -2.
Help now!!! Due at midnight
Answer:
20
Step-by-step explanation:
the answer is 20 hope this helps
Answer: 20
Identify the pattern:
3⋅5 = 15 and 3⋅4 = 12
4⋅5 = 20 and 4⋅4 = 16
5⋅5 = 25 and 5⋅4 = 20
3.005 as a fraction simplified(I’m reporting wrong answers)
Answer:1
Step-by-step explanation:it’s one decimal
Graph the line that passes through the points (4,-6) and (-4,-8) and determine the equation of the line.
Answer:
y=1/4x-7; can't put graph on here
Step-by-step explanation:
m=y2-y1/x2-x1
m=-8+6/-4-4=-2/-8=1/4
put it in point-slope form with (4,-6) as the base
y-y1=m(x-x1)
y+6=1/4(x-4)
y+6=1/4x-1
y=1/4x-7
He loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a pile driver? Round to the nearest ten.
Complete question :
The loudness of a jack hammer is 96 dB. Its sound intensity is about 0.004.
The loudness of a compactor is 94 dB. Its sound intensity is about 0.0025.
The sound intensity of the jack hammer is about 1.6 times the sound intensity of the compactor.
The loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a pile driver? Round to the nearest ten.
Answer:
40
Step-by-step explanation:
Given that:
Sound intensity of jackhammer = 0.004
Sound intensity of compactor = 0.0025
Sound intensity of jackhammer is about 1.6 times the sound intensity of a compactor
Each factor of 10 in intensity corresponds to 10dB
Pile driver with loudness of 112dB ; 112 / 10 = 11.2
Hence, 10^11.2 = 1.58489 * 10^11
Hence, sound intensity (I) in watts per m²
I = 1.58489 * 10^11 * 10^-12
I = 1.58489 * 10-1
I = 0.158489
Comparing the intensity of pile driver and jackhammer :
Intensity of piledriver / Intensity of jackhammer
0.158489 / 0.004
= 39.622
= 40 (nearest ten)
Answer:
40
Step-by-step explanation:
Edge 2020
Simplify.
2(y-5) - 4y
ANSWER: -2y-10
Step-by-step explanation:
2700 is a perfect cube. True/False?
Answer: False
Step-by-step explanation:
Answer:
It is false hope this will be
Talia spent 3/4 of this weeks allowance
on candy. Of the money she spent on
candy, 5/6 was spent on gummy bears.
What fraction of this week's
allowance did Talia spend on
gummy bears?
Answer:
Very straightforward! Although we don't know actual dollar amounts, we only need fractions. Multiply the 3/4 of her allowance by the 5/6 of spending that was gummy bears:
3 * 5 Cancel the 3 and 6, dividing each by 3:
4 6
1 * 5 Nothing else cancels, so just multiply sideways as usual, and you get:
4 2
5
8
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Step-by-step explanation:
Very straightforward! Although we don't know actual dollar amounts, we only need fractions. Multiply the 3/4 of her allowance by the 5/6 of spending that was gummy bears:
3 * 5 Cancel the 3 and 6, dividing each by 3:
4 6
1 * 5 Nothing else cancels, so just multiply sideways as usual, and you get:
4 2
5
8
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•
1
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Answer: spent on gummy bears = 3/4 * 5/6 = 15/24 =5/8 of weekly allowance
Simplify the expression $17x-24x+13x$. Your answer should have the variable $x$ in it only once.
Answer:
1
Step-by-step explanation:
1+1=2
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help me please i need it a lot
Which of the following values are solutions to the inequality x-7< 5?x−7<5?
Answer:
x>12
Step-by-step explanation:
Answer:
These are = to........so =
HELP ME ?
1. is √11 equal, less, or more than 3.5
2. is √5 equal, less, or more than 2.1
3. is -5.3 equal, less, or more than -5 3/5
4. is 8/10 equal, less, or more than 0.8 repeating
1.[tex]\sqrt{11}[/tex] is less than 3.5
2. [tex]\sqrt{5}[/tex] is more than 2.1
3. -5.3 is more than -5 [tex]\frac{3}{5}[/tex]
4. [tex]\frac{8}{10}[/tex] is less than 0.8 repeating
Solve the following equation by the quadratic formula. 4x 2 - 2x = 7
Answer:
Here is the screenshot of my answer:
someone please help :)
Help I reward you the Brainlyest
Answer:
(0, -7), (7/5, 0)
Step-by-step explanation:
rearrange your equation to look like y = mx+b where b is the y-intercept
y-3 = 5(x-2) distribute
y-3 = 5x-10 add 3 to both sides
y = 5x -10 +3 combine like terms
y= 5x-7 so
y-intercept is at ( 0, -7)
to find x-intercept make 5x-7=0 and solve for x
5x-7 = 0 add 7 to both sides
5x = 7 divide both sides by 5
x=7/5 or 1.4
x-intercept is (7/5, 0)
-28=p+21
Please help I don’t understand
Answer: -7
Step-by-step explanation:
-28=p+21
Move variables to the left- hand side and change its sign
-p-28=21
Move constant to the right hand side and change its sign
-p=21+28
Add the numbers
-p=49
Changes the sign on both sides of the equation
p=-49
Answer :p=-49
PLEASE MARK ME AS BRAINLIEST
120-75+105 please do it in order
Answer:
150
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
120-75=45
45+105=150
120-75+105=150
Type the correct answer in the box. Use numerals instead of words.
Laura is a single taxpayer. She has $35,000 in ordinary taxable income and $5,000 in capital gains on an investment she held for 2 years. Use the tables to complete the statement.
Single Taxpayers: Income Brackets
Tax Rate Income Bracket
10% 0 to 9,525
12% 9,526 to 38,700
22% 38,701 to 82,500
24% 82,501 to 157,500
32% 157,501 to 200,000
35% 200,001 to 500,000
37% > 500,000
Single Taxpayers: Qualified Dividends and Long-Term Capital Gains
Tax Rate Income Bracket
0% 0 to 38,600
15% 38,601 to 425,800
20% > 425,800
The tax rate Laura will pay on her investment income is
%.
Answer:
22% because her taxable income will now be 40,000 dollars
Step-by-step explanation:
Answer:
15% Plato
Step-by-step explanation:
A camera is capable of snapping 3/4 of a picture per second how long will it take for the camera to snap 6 pictures
Answer:
8 seconds
Step-by-step explanation:
0.75x = 6
x = 8 seconds
Answer:
It will take 8 seconds to snap 6 pictures.
What is the value of x? Round to the nearest tenth(1 decimal place)
Answer:
x ≈ 15.0 ft
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesTrigonometry
tan∅ = opposite over adjacentStep-by-step explanation:
Step 1: Define
Angle = 28°
Opposite leg of angle = 8 ft
Adjacent leg of angle = x ft
Step 2: Find x
Substitute: tan28° = 8/xMultiply x on both sides: xtan28° = 8Divide tan28° on both sides: x = 8/tan28°Evaluate: x = 15.0458Round: x ≈ 15.0 ft
Bailey caught a total of 12 fish on her fishing trip, and 9 of them were trout. What
percent of the fish were trout?
Answer:
75 %
Step-by-step explanation:
9 out of 12 is 75
HELP ASAP I NEED SOMEONE TO ANSWER LESS THAN 30 MINS!!
Swim team members can race or dive. At the meet, 18 members race. The ratio of racers to divers is 6 : 2. How many members are on the team?
Answer:
3
Step-by-step explanation:
Got it right :P
