Answers
Related Questions
Your goal is to save $50. So far, you have saved $34. How much more money do you need to save? Write your answer as a rational number.
Answers
Answer:
You need to save $16 more dollars.
Step-by-step explanation:
If you add 16 to 34 you get 50.
18. Simplify the following expression: 35+ (-13) + (+8) -(-6).
O A.50
O B. 24
O C.44
O D.36
Answers
Answer:
36 D.
Step-by-step explanation:
+ - = -
+ + = +
- - = +
35 - 13 + 8 + 6
22 + 8 + 6
30 + 6
36
In each case below, we describe a study to determine whether exercise helps increase certain mood enhancing chemicals in the brain. Indicate whether each describes an experiment or an observational study.
a). Using a random sample of 100 people, we randomly assign half of them to participate in a regular exercise program for a six-week period while the other half makes no changes. At the end of the time period, we measure the brain chemicals.
b). We contact a random sample of 100 people and record how much each person exercises and also measure the chemicals in the brain for each person.
Answers
Answer:
A)Experimental Study
B)Observational Study
Step-by-step explanation:
Observational Study : A study where researchers simply collect data based on what is seen and heard and infer based on the data collected.
Experimental Study: A study which involve the random assignment of -participants into different groups in order to determine the causal effect of a certain condition on a certain outcome .
A) In this case we are randomly classifying the subjects into two groups, where one group participate in a regular exercise program for a six week period, while the other half makes no changes. In this Part we are not observing the data . we are doing experiment over here and comparing those two different groups.
So, By definition It is an experimental study
B) In this case we are recording the data of each person and decision will be based on data
So, By definition It is an observational study
What is the inverse of the function f(x) = 1/4x – 12?
h(x) = 48x – 4
h(x) = 48x + 4
h(x) = 4x – 48
h(x) = 4x + 48
Answers
Answer:
h(x)=4x+48
Step-by-step explanation:
f(x) = 1/4x – 12
x=1/4y-12
x+12=1/4y
4x+48=y
h(x)=4x+48
2(x + 7) + 3x = 12 (given)
2x + 14 + 3x - 12 (?)
5x + 14 - 12 (simplify)
5x = -2 (subtraction)
x = -2/5(division)
What is the missing reason?
A)
Addition
B)
Subtraction
c)
Reflexive Property
D)
Distributive Property
Answers
find the missing
number
+ 16 = 28
Answers
it’s the same as subtracting 28 from 16 so 28-16 is 12 and that’s your answer!
The daily high temperatures in a vacation resorts in approximately normal, with a mean temperature of 75 Fahrenheit and a standard deviation of 6 degrees. What percentage of days have a high temperature between 66 and 88?
A.17.01%
B.35.62%
C.64.37%
D.72.99%
Answers
Which postulate or theorem proves that these two triangles are
congruent?
HL Congruence Theorem
SAS Congruence Postulate
ASA Congruence Postulate
AAS Congruence Theorem
Answers
Answer:
ASA
Step-by-step explanation:
Took the test.
what is the slope of the line that contains these points? please help
Answers
Answer:
Plug in to find out
Step-by-step explanation:
Pick 2 complementary sets of coordinates
For this Q i am picking (36,8) & (31,10)
[tex]m=\frac{y2-y1}{x2-x1}[/tex] <-- this is the slope formula
Plug in the values and divide.
Answer:
Step-by-step explanation:
(8-10)/(36-31)= -2/5 is the slope
Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from ground to a final position of –25 feet. Which statement best describes the final positions of these two elevators? (1 point) Elevator 1 is 16 feet below ground level, and elevator 2 is 25 feet above ground level. Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level. Elevator 1 is 16 feet above ground level, and Elevator 2 is 25 feet below the position of Elevator 1. Elevator 1 is 16 feet below ground level, and Elevator 2 is 25 feet above the position of Elevator 1.
Answers
Answer B
Step-by-step explanation:
Answer:
it is BStep-by-step explanation:
i already took the test please like it and give 5 stars Thank youHow do we shift the graph of y=f(x) to get the graph of y = f(x) +5?
A Move the graph down by 5 units.
B Move the graph up by 5 units.
Answers
Answer:
B, Up 5 units
Step-by-step explanation:
because of the +
What expression equals to 3^15
Answers
Answer:
14348907
Step-by-step explanation:
That's the right answer
2) -9u-17 = -5u -7
Yallll help meeeI’ve been stuck
Answers
Answer:
u = -4.8 :)
Step-by-step explanation:
-9u-17=-5u-7
-5u=24
24/-5=-4.8
Help me please math is a pain...
Answers
Answer:
D
Step-by-step explanation:
The degree of 10 moves the decimal. As we are multiplying, move the decimal 5 places to right.
Pls mark me brainliest
Answer:
Answer is D (750,000)
Step-by-step explanation:
Basically you do 10^5 = 10 x 10 x 10 x 10 x 10 to get 100,000 then you multiply by 7.25 lol
2.5 puzzle time Which month has 28 days
Answers
Answer:
February has 28 days on every year except a leap year, but all months have at least 28 days.
Step-by-step explanation:
Answer:
February is the answer
Step-by-step explanation: hope this helps.
Sarah traveled 145 miles in
2.5 hours. How fast was
Sarah driving?
Ma
Answers
Answer:
58 mph
Step-by-step explanation:
145/2.5=1450/25=58
841/4 how much is it
Answers
Answer:
210.25
Step-by-step explanation:
841/4=210.25
Ernie worked at his job on Saturday and Sunday last weekend, earning $14 per hour. His
sister, Perla, also worked on the weekend and earned a total of $126.
If Ernie and Perla earned the same amount of money at their jobs last weekend, how many
hours did Ernie work?
Answers
Answer:
9 hours
Step-by-step explanation:
126 divided by 14 = 9
You can check your answer by 9 times 14 which would give you 126.
Whats the mean of 62,78,59and 89
Answers
[tex]\huge {\mathcal{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}}}[/tex]
As we know that ,
⠀⠀⠀⠀Mean= sum of all numbers/ total number of numbers[tex] \longrightarrow [/tex] Mean= 62+78+59+89/4
[tex] \implies [/tex] Mean = 288/4
[tex] \implies [/tex] Mean= 72[tex]\huge\boxed{\fcolorbox{purple}{yellow}{Answer\:= \:72}}[/tex]Answer:
72
Step-by-step explanation:
62 + 78 + 59 + 89 = 288
then count how many data you have
288 / 4 = 72
Round off the following numbers to 2 significant figures.
156
Answers
Answer:
your answer would be 160
(x² + 4x – 22) + (x + 6)
Answers
Answer:
12
Step-by-step explanation:
if f(x) = 6(x - 2)3 + 5, what is the y- intercept?
Answers
Answer:
y= (0, -31)
Step-by-step explanation:
Hope this helps
1. A pitched roof is built with a 1:3 ratio of rise to span. If the rise of the roof is 10 meters, what is the span
Answers
Answer:
The answer is B) the span of the roof is 4
Step-by-step explanation:
The span is 30 meters if the pitched roof is built with a 1:3 ratio of rise to span.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
We have:
A pitched roof is built with a 1:3 ratio of rise to span
rise/span = 1/3
rise = 10 meters
10/span = 1/3
span = 3×10 = 30 meters
Thus, the span is 30 meters if the pitched roof is built with a 1:3 ratio of rise to span.
Learn more about the ratio here:
brainly.com/question/13419413
#SPJ2
The variable y is directly proportional to the variable x. If y = 32 when x = 20, what is the value of x when y = 40?
Answers
Answer
25
Step-by-step explanation:
20/32 = 0.625
40 x 0.625 = 25
You can check by doing 25/40 and see if you get the same proportion (x/y)
25 is the correct answer 32/20 is 1.6 and 40/25 is also 1.6
Evaluate using the order of operations. Enter the answer in simplest form.
3/5+1/7÷3
Answers
Answer:
0.64761904761
Step-by-step explanation:
Your answer is 68/105
It costs $3.45 to buy3/4 lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? Explain or show your reasoning. l
Answers
Answer:
$34.5
Step-by-step explanation:
because 3/4 of a pound is basically .75 of a pound. so the conversion from .75 of a pound to 7.5 pounds is just multiplying by 10. therefor you just multiply the initial price by 10
Answer:
$34.50
Step-by-step explanation:
please give me brainliest
A 33 pound bag of grass seed holds 2 pounds less than 5 smaller bags of seed. Find the weight of the smaller bag of seed.
Answers
Answer:
7 pounds
Step-by-step explanation:
33+2=35....35/5=7
Answer:
The answer is 7.
Step-by-step explanation:
33 + 2 = 35
35 ÷ 5 = 7
What’s the rule it’s algebra 1
Answers
Answer:
An algebraic rule is a mathematical expression that relates two variables and is written in the form of an equation. There are many constant algebraic rules, such as area = length x width. You can also create your own rule when given a set of variables
Step-by-step explanation:
Which are removable discontinuities?
x = -2
x = -2 and x = 0
x = 0 and x = 4
x = -2, x = 0, and x = 4
Answers
Answer:
C
Step-by-step explanation:
Got it right on eng
Answer:C
Step-by-step explanation:
Solve: -19x- 1 = -12x + 34
Answers
19−1=−12+34
19x-1=-12x+34
19x−1=−12x+34
19−1+1=−12+34+1