A sprinter on the track team ran the 100 meter dash and redcorded the time for each race. The race times (in seconds) were:
12.4 13.1 12.7 12.8 13.0 12.9 13.1 13.5
Answer:
What is the question please post the full question next time
The cost of Kerri’s meal was $10. If she wants to leave a 15% tip, how much should she leave? Use the percent proportion to help you ( part/whole = percent/100).
The ratio of men to women working for a company is 3 to 2 . If there are 58 women working for the company, what is the total number of employees?
Answer:
145
Step-by-step explanation:
Simplify:
A.
B.
C.
D.
Answer:
C
Step-by-step explanation:
The absolute value function always gives a positive result, that is
| - a | = | a | = a
Given
[tex]\frac{|-12-3|}{4}[/tex] - [tex]\frac{|23-42|}{8}[/tex]
= [tex]\frac{|-15|}{4}[/tex] - [tex]\frac{|-19|}{8}[/tex]
= [tex]\frac{15}{4}[/tex] - [tex]\frac{19}{8}[/tex]
= [tex]\frac{15(2)}{4(2)}[/tex] - [tex]\frac{19}{8}[/tex]
= [tex]\frac{30}{8}[/tex] - [tex]\frac{19}{8}[/tex]
= [tex]\frac{30-19}{8}[/tex]
= [tex]\frac{11}{8}[/tex] → C
The simplification of the given equation is 11/8. thus option /c is correct.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output. An equation is an expression that shows the relationship between two or more numbers and variables.
The absolute value function always gives a positive result, which is;
| - a | = | a | = a
Given that | 12 - 3 |/4 - | 23 -42 | /8
| 12 - 3 |/4 - | 23 -42 | /8
| 15 |/4 - | -19 | /8
= 15/4 - 19/8
= 30/8 - 19/8
= 11/8
Therefore, the simplification of the given equation is 11/8. thus option /c is correct.
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Steve earns $10.50 an hour working in a store. Last weekend
he earned a total of $73.50. Which equation can be used to
find n, the number of hours Steve worked last weekend?
Answer:
Steve worked 7 hours last weekend
Step-by-step explanation:
$73.50 (how much he earned during the weekend) ÷ $10.50 (how much he gets payed per hour) = 7 (how many hours he worked)
n=$10.50 x n
simplify 5^-4/5^3
please help!! :)
Answer:
1/78125 or 0.0000128 or 5^-7
Step-by-step explanation:
Apply exponent rule: x^a/x^b = x^a-b
There are about 3×1011 stars in our galaxy and about 100 billion galaxies in the observable universe. Suppose every galaxy has as many stars as ours. How many stars are in the observable universe? Write in scientific notation.
The number of stars in the observable universe is; 3.033 × 10¹⁴
Since there are about 3 × 1011 stars in our galaxy; we can rewrite that to be;
3033 stars or3033 stars or3.033 × 10³ stars in our galaxy.However, there are about 100 billion galaxies in the observable universe.
We can rewrite that in scientific notation form so that we have;
100 × 10⁹ or 100 × 10⁹ or 10¹¹ galaxies in the observable universe.Ultimately, since our galaxy is one of the 10¹¹ observable galaxies in the universe; the number of stars in the observable universe is;
3.033 × 10³ × 10¹¹By the laws of indices;
3.033 × 10¹⁴.Therefore, the number of stars in the observable universe is; 3.033 × 10¹⁴.
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Kyle has 22 more cards than 3 times the number of cards that Stan owns. Together, they own less than 58 cards. How many cards are in stand collection?
A- Stan owns 9 cards or less
B- Stan owns 9 cards or more
C- Stan owns less than 9 cards
D- Stan owns more than 9 cards
Answer:
i think the answer is c
Step-by-step explanation:
22x3=66 66-58=8
In stand collection, Stan owns less than 9 cards.
What is a solution set to an inequality or an equation?If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality. Set of such values is called solution set to the considered equation or inequality.
Let x represnets the number of Kyle's cards and y be the number of Stan's cards.
We know that Kyle has 22 more cards than 3 times the number of cards that Stan owns, so:
k = 3s + 22 equation (1)
We also knows that together, they own less than 58 cards, so:
k + s < 58 equation (2)
Replace (1) in (2) and solve for :
s + 3s + 22 <58
s <58
Hence, Stan owns less than 9 cards.
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Round 11,900 to the nearest thousand.
Answer:
12,000
Step-by-step explanation:
the answer is 12,000 bc if its over 11,500 you round up and if its 11,400 then you round it to 11,000.
x^3 - 8x^2 + 9x - 5/ x-3
8(x+1)-7x ≥-3 help me find the solution
Answer:
x [tex]\geq[/tex] 11
Step-by-step explanation:
[tex]8\left(x+1\right)-7x[/tex]
[tex]8x+8-7x[/tex]
[tex]x+8[/tex]
Then..
[tex]x+8\ge \:-3[/tex]
Subtract 8 from both sides
[tex]x+8-8\ge \:-3-8[/tex]
Then, you got your awnser.
[tex]x\ge \:-11[/tex]
Select the correct answer.
What is the simplest form of this expression?
(2x + 1)(x2 - 9x+11)
OA. 2x3 - 19x2 + 11x + 11
OB. 2x3 - 17x2 + 13x + 11
OC. 2x2 + 18x2 + 22x+11
OD
2x3 - 18x2 - 9x + 11
Answer:
2x^3-17x^2+13x+11
Step-by-step explanation:
Answer:
2x^3 -17 x^2 + 13 x + 11
Step-by-step explanation:
⚠️⚠️ HELP ME SO I CAN BE OFFICIALLY FINISHED ⚠️⚠️
Answer:
slope = -0.5
y-intercept = 5
find the inverse of y=4-x/x
Answer:
[tex]f^{-1} (x)[/tex]=[tex]\frac{4}{1+x}[/tex]
Step-by-step explanation:
The first step is to switch y for x and x for y so the equation will look like
x=[tex]\frac{4-y}{y}[/tex]
the next thing you do is isolate y so you have to multiply y to both sides to get
[tex]xy=4-y[/tex] now you got to add y to both sides which would get you
xy+y=4
since xy and y share a y value you have to try and factor out y which would get you
y(x+1)=4
the final step is to divide x+1 on both sides
y[tex]\frac{(x+1)}{x+1}[/tex]=[tex]\frac{4}{x+1}[/tex]
which since x+1 and x+1 crosses each other out we are left with
y=[tex]\frac{4}{1+x}[/tex]
The area of a parallelogram is 42 square inches. The base of the parallelogram is 6 inches. What is the height of the parallelogram? EXPLAIN how you can use the formula for the area of a parallelogram to solve the problem.
Answer:
7
Step-by-step explanation:
to find an area of a parallelogram, you have to multiply the width by height. to do the opposite, simply divide 42 to 6 to get 7
:((((((((((((((((((
Answer:
132°
Step-by-step explanation:
Find the supplementary angle of 48°
To do this, subtract 48° from 180°
180 - 48 = 132°
Step-by-step explanation:
ABD = 180
[tex]180 - 48 = 132[/tex]
One tank is filling at a rate of 5/8 gallon per 7/10 hour. What is the unit rate per hour?
Answer:
7.14
Step-by-step explanation:
Hi! I really suck at math so please help :)
Answer:
(-2,-4), (-1, -1), (0,2), (1,5)(2, 8)
Step-by-step explanation:
you plug x into the equation to get y
Answer:
-4, -1, 2, 5
Step-by-step explanation:
I used desmos to graph it
What is the value of 11,340 divided by 27
Answer:
420
Step-by-step explanation:
11340 / 27 = 420.
Plug it into your calculator.
Which expression is equivalent to 4x^2Sqrt5x^4 • 3sqrt5x^8, if x ≠ 0?
A) 12x^10sqrt5
B) 60x^8
C) 35x^18
D) 7x^10sqrt5
the equivalent expression is:
60*x^8
Which is option B.
How to get the equivalent expression?
Here we start with:
4*x^2*√(5x^4)*3*√(5x^8)
Remember that square roots are distributive, then we can just write:
(4*3)*(x^2)*(√(5x^4)*√(5x^8))
12*x^2*√(25x^12)
Now, the square root can now be solved
12*x^2*√(25x^12) = 12*x^2*5*x^6
= (12*6)*(x^2*x^6)
Remember that in the right side, the exponents just add, then we get:
(12*6)*(x^2*x^6) = 60*x^{2 + 6} = 60*x^8
Then the equivalent expression is:
60*x^8
Which is option B.
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I need help on this problem I have 6 minutes left to solve this!.”
simplify
-2.5·4
thanks hhhhhhhhh
Answer:
-10
Step-by-step explanation:
-2.5 times 4
-10
Answer:
-10
Step-by-step explanation:
Multiply the number -2.5 * 4
= -10
Alonso plans to buy a new kayak that costs $2,100. But he needs to pay a 8.5% tax. What is the total cost of the kayak?
Answer:
$ 2,273.25
Step-by-step explanation:
The slope between (250,120) and (300,90)
m = − 3/ 5 your welcome
Answer:I think it's -3/5
Step-by-step explanation:mhm
What is the equation of the line that passes through the point (1,0) and has a slope
of 1?
Answer:
x=y
Step-by-step explanation:
The answer is x=y if the slope is 1,1 | 2,2 | 3,3 | etc
What must 111,111,102 be divided by to get 9 as the quotient and 0 as the remainder?
The weight of an object on the moon is of its weight on Earth. Write 1/6 as a decimal.
Answer:
1/6 as an decimal would be, 0.1666 Continued
Step-by-step explanation:
Answer:
0.1666 continuing
Step-by-step explanation:
This is 1/6 as a decimal
I need help and make sure to explain.
This is not rounding.
453.89
Would it be thousandths or hundredths? Explain why.
Chose 1 Answer:
A (1/3,2 5/6)
B (2/3,3 2/3)
C (-1/3,1 1/6)
D (-2/3,1/3)
Answer:
c
Step-by-step explanation:
bc ik
Nilda has $25 in her savings account. She plans to save 6.50 per week from her salary. Iona has $50 in her account but can save $13 per week from her paycheck. Nilda gets paid twice a month, but Iona only gets paid once a month. How many weeks will it take before the amount in each savings account is the same?
Answer:
3
Step-by-step explanation:
$25×6.50=152.5
50÷13=0.26