Answer:
5(3)+10=15+10
=25
Step-by-step explanation:
If a person runs 10 kilometers in 0.4 hours, at what speed are they running per hour? I Need a explanation!!!!
Answer:
62.5 i think use a calculater i...
divided 25 by 0.4 got 6.25
6.25 times 10 got 62.5
Step-by-step explanation:
done i hope its right sorry if its not
On each trial of an experiment, a participant is presented with a constant soft noise, which is interrupted at some unpredictable time by a slightly louder sound. The time it takes for the participant to react to the louder sound is recorded. The following list contains the reaction times (in milliseconds) for 8 trials of this experiment:
486, 358, 395, 759,496, 692, 353, 306 0
(a) What is the mean of this data set? If your answer is not an integer, round your answer to one decimal place.
(b) What is the median of this data set? If your answer is not an integer, round your answer to one decimal place.
(c) How many modes does the data set have, and what are their values?
Answer:
480.6 ; 440.5, 8 mode values
Step-by-step explanation:
Given that :
Given the data :
486, 358, 395, 759,496, 692, 353, 306
Rearranged data: 306, 353, 358, 395, 486, 496, 692, 759
The mean:
Σx/ n
n = sample size = 8
Σx = sum of all data values = 3845
Mean = 3845 / 8
Mean = 480.6
The median :
0.5(n + 1)th term
0.5(8 + 1) th term
0.5(9)th term
= 4.5term
(4th + 5th term) / 2
(395 + 486) / 2
= 440.5
The mode = most frequently occurring data value ; since all the data values have a frequency of 1, then the number of modes = 8.
Evaluate: 4×2²-10÷2+5
Answer:
The answer is 16.
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Answer:
Hi! The correct answer is 16!
Step-by-step explanation:
Simplify the expression
Complete: 0
Class:
1. Solve. Draw a tape diagram or number bond to add or subtract
tens. Write the new number sentence.
1
a. 26 + 38 =
1
1
1
Answer:
Step-by-step explanation:
1/2 of 4/3 = 1/2 of ______thirds =______ thirds
Answer:
four, two
Step-by-step explanation:
1/2 of 4/3 is half of four thirds. Half of four is two, so it would be two thirds
I hope this helps! :)
please help me asap!!!
Answer:
你看chart的triangle你看the dimension
Step-by-step explanation:
help me pls ASAP!
(screenie below)
Answer:
i didnt see a screenie
Step-by-step explanation:
Lilly likes to collect records. Last year she had 15 records in her collection. Now she has 18 records. What is the percent increase of her collection?
Use synthetic substitution to find f (-5) for f (x) = x3 – 5x +2.
Answer:
_5(_5)=25
25+2=27
3(_5)=_15
27_15=12
(-5)^3 - 5(-5) + 2
-125 - (-25) + 2
= -98
Help I need the answer
log101 = -1 0 1
Answer:
wht is the question
Step-by-step explanation:
4.8 + 2.2w − 1.4w + 2.4 ?
Answer:
7.2+0.8W
Step-by-step explanation:
Answer:
0.8w + 7.2
Step-by-step explanation:
Separate the numbers with and without variables.
4.8 + 2.4 = 7.2
2.2w - 1.4w = 0.8w
( Remember when u put ur answer together the number with variables should be in front of the number without variables! or whatever i dont remember lol i only remember how to solve. )
A number cube is rolled one time. Determine the probability of not rolling a 1
or a 6.
Answer:
the probability of NOT rolling a 1 or a 6 is a 4/6 or 2/3 chance
Step-by-step explanation:
pls answer my new question
what is a multiplication expression that is equal to 2/3 divided by 6
Answer:
1/9
Step-by-step explanation:
The word problem below has too little information. Read carefully and then
choose the fact or facts needed to solve the problem.
Some of the animals that you can ride on the jungle carousel are lions, tigers,
and elephants. How many more lions than elephants are there on the
carousel?
A. The elephants move faster than the lions.
O B. There are six lions on the carousel.
o C. The two elephants don't go up and down.
O D. The lions are always beside the tigers.
What is the unit rate for meters per second if a car travels 450 meters in 25 seconds?
Answer:
18m/s
Step-by-step explanation:
Formula = 450 meters in 25 seconds
Average speed = 450m/25s
The unit rate is equivalent to 18m/s.
[Basically, just divide 450 meters by 25 seconds to get 18 meters per second. 18 is the unit rate :) ]
[ Thank you so much for the brainliest!! I appreciate it! ]
help find the slope. please
Answer:
21) zero
22) 4/3
23) -3
24) -3/2
25) 4/6 or 2/3
26) 4/5
Step-by-step explanation:
Ariana invested $400 in an account paying an interest rate of 3.8% compounded monthly. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 11 years?
Answer:
After 11years there'll be$602.880
Step-by-step explanation:
Amount after 11years
=$400(1+3.8/100)¹¹
=$602.880
The after 11 years the amount will be $602.880
We have given that,
Ariana invested $400 in an account paying an interest rate of 3.8% compounded monthly.
What is the formula for the future value on simple interest?[tex]A=p(1+r)^n[/tex]
Amount after 11 years,
[tex]P=$400r=3.8[/tex]
[tex]=\frac{3.8}{100} =0.38[/tex]
[tex]=$400(1+3.8/100)^{11}[/tex]
[tex]=$602.880[/tex]
Therefore the after 11 years the amount will be $602.880.
To learn more about future values visit:
https://brainly.com/question/24703884
Pls help ..............
Imagine a researcher posed a null hypothesis that in a certain community, the average energy expenditure should be 2,100 calories per day. He randomly sampled 100 people in that community. After he computed the t value by calculating a two-tailed t-statistic, he found that the probability value was 0.10. Thus, he concluded:
Answer: I fail to reject the Null Hypothesis H₀ and conclude that average energy expenditure is 2100 calories per day.
Step-by-step explanation:
Null Hypothesis H₀ : average energy expenditure is 2100 calories per day
Alt Hypothesis H₁: average energy expenditure is NOT 2100 calories per day
now since
P-value (0.10) > ∝ (0.05),
then he should say;
i fail to reject the Null Hypothesis H₀ and conclude that average energy expenditure is 2100 calories per day.
Please help I don’t know if I’m right about the answer
A frog hops 1 1/2 inches and then another 1 1/4 inches. How far has it hopped altogether?
Answer:
Add
11 over 2
11 2 + 11 over 4 11 4 = 33 over 4 33 4
Step 1 of 2: Add. Show the work
Step 2 of 2: Simplify.
Simplify
33 over 4 33 4 = 8 and 1 over 48
1
4
Step-by-step explanation:
HELP MY ASSINGMENT IS DUE IN 5 MINUTES!!!!
PLEASE HELP!
Answer:
first one is 54/63 , second is 35/63. which makes the answer 19/63. i believe!
Step-by-step explanation:
Answer:
6/7 = 54/63
-5/9= 35/63
= 19/63
Step-by-step explanation:
Write 1/5 as a percent.
Answer:
0.2
Step-by-step explanation:
Evaluate the expression when y=5 and x=18 x-3y
Answer:
3
Step-by-step explanation:
Step 1: replace y for 5, and x for 18
x-3y
18-3(5)
Step 2: simplify.
18-15
3
Answer:
Step-by-step explanation:
18 - 3(5)= 18 -15= 3
Find the probability of rolling divisors of 24
Answer:
5/6 is the probability
Step-by-step explanation:
Factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 and rolling a 6-sided die you can get 1, 2, 3, 4, 5, 6 so 5 is the only thing you can roll that isn't a factor of 24 so
Help please<3 for all questions with solutions plz
Answer:
a) [tex]h = -\frac{7}{4}[/tex], b) [tex]h = f\,\circ\,g (-5) = \frac{3}{2}[/tex], c) [tex]h = g\,\circ\,f (-2) = \frac{3}{8}[/tex]
Step-by-step explanation:
We proceed to solve each exercise below:
a) [tex]f(-2) +3\cdot g(0)[/tex]
[tex]h = \frac{2\cdot (-2)}{3\cdot (-2)+5}+3\cdot \left(\frac{3}{0+4} \right)[/tex]
[tex]h = \frac{-4}{-6+5} +3\cdot \left(\frac{3}{4} \right)[/tex]
[tex]h = -4+\frac{9}{4}[/tex]
[tex]h = \frac{-16+9}{4}[/tex]
[tex]h = -\frac{7}{4}[/tex]
b) [tex]h = f\,\circ \,g (-5)[/tex]
[tex]h = f\,\circ\,g (x) = \frac{\frac{6}{x+4} }{\frac{9}{x+4}+5 }[/tex]
[tex]h = f\,\circ\,g (x)= \frac{\frac{6}{x+4} }{\frac{9+5\cdot (x+4)}{x+4} }[/tex]
[tex]h = f\,\circ\,g (x) = \frac{6}{29+5\cdot x}[/tex]
[tex]h = f\,\circ\,g (-5) = \frac{6}{29+5\cdot (-5)}[/tex]
[tex]h = f\,\circ\,g (-5) = \frac{3}{2}[/tex]
c) [tex]h = g\,\circ\,f(-2)[/tex]
[tex]h = g\,\circ \, f (x) = \frac{3}{\frac{2\cdot x}{3\cdot x + 5} + 4 }[/tex]
[tex]h = g\,\circ\,f (x) = \frac{3}{\frac{2\cdot x +4\cdot (3\cdot x +5)}{3\cdot x +5 } }[/tex]
[tex]h = g\,\circ \,f (x) = \frac{3\cdot (3\cdot x +5)}{2\cdot x +12\cdot x +20}[/tex]
[tex]h = g\,\circ\,f(x) = \frac{9\cdot x +15}{14\cdot x +20}[/tex]
[tex]h = g\,\circ\,f(-2) = \frac{9\cdot (-2)+15}{14\cdot (-2)+20}[/tex]
[tex]h = g\,\circ\,f (-2) = \frac{-3}{-8}[/tex]
[tex]h = g\,\circ\,f (-2) = \frac{3}{8}[/tex]
Simplify.
(6 - i) + (5 – 8i)
[? ] + [ ]i
Answer:
=11-9i
Hope this helps! :))
Step-by-step explanation:
Solve n/2+5=3 help me please thank you
Answer:
n=-1
Step-by-step explanation:
.....................
400000 divided by 625
Answer:
643.08
Step-by-step explanation:
You can use long division or a calculator
Answer:
640
Step-by-step explanation:
(used a calculator)
Need help asap please!
Answer:
45
Step-by-step explanation:
because the value of 3 is 45
