Answer:
Step-by-step explanation:
5x + 2 = 22
Bringing like terms on one side
5x = 22 - 2
5x = 20
x = 20/5 = 4
A survey is taken to figure out the average temperature across all cities in the United States on a particular day. In 10 randomly chosen states, 40 cities are chosen to record the temperature. Which sampling method describes this situation?
a. convenience
b. cluster
c. random
d. stratified
Answer: Random
Step-by-step explanation:
Answer:
systematic sampling
Step-by-step explanation:
Aka, C random selection
What is the area of this face?
help quickly!!!!!!!!
you have 26 books.you return some books.then you take out 15 more books.now you have 27 books.how many books did you return? solve anyway
Answer:
14 books were returned.
Step-by-step explanation:
You would have to first
27-15=12
26-12=14
(I hope that this helps)
Across
A 35 degree angle and a 55
degree angle add together
what
angles?
Answer:
20
Step-by-step explanation:
ahaja8ququqqu8qyq8
. how many 1/2s are in 3
Answer:
6
Step-by-step explanation:
Which is the graph of the function f(x) = 1/2x^2 + 2x – 6?
Help please i am stuck
Answer:
it is because so you can evenly add it
Step-by-step explanation:
because it is easyer to add 5/10 + 2/10
than 5/10 + 1/5 isnt it?
Was it easier to add, subtract, divide, or multiply polynomials?
Explain why?
Is for a essay help me
Answer:
Add them
Step-by-step explanation:
60 ft/s= how many km/h
Show work please
Answer:
65.837 kilometers per hour
Step-by-step explanation:
hope this help:))
multiply the speed by 1.097
PLEASE HELP!!!!
Which equations could be used to solve
for x? Circle all that apply.
A. x – 58 = 129
B. x + 58 = 129
C. 180 – 129 − 59 = x
D. 129 – 58 = x
E. (180 – 129) – 51 + x = 180
Answer:
dang
Step-by-step explanation:
A. x – 58 = 129 yes
B. x + 58 = 129 no
C. 180 – 129 − 59 = x yes
D. 129 – 58 = xyes
E. (180 – 129) – 51 + x = 180no
hope this helps
Answer:
E
Step-by-step explanation:
What is
3 1/2 + 3/4 =
What is an equation of the line that passes through the points (4, 3) and (-6, 3)?
Answer:
Step-by-step explanation:
(4,3)(-6,3)
3-3/-6-4
m=0
y=3
Answer:
y=3
Step-by-step explanation:
Something that I notice about this is that the 2 y coordinates are the same
This means that the line isn't increasing nor decreasing, it's constant
if we look at the y=mx+b
we have, so far,
y=0x+b
we just need be
we know that when x=4 y=3 so we have
3=(0)(4)+b
b=3
so the answer is just y=3
3. What is a reasonable r-value for the scatterplot below?
O r=1
or=0.333
O r=0.972
or= -0.976
Answer: r= 0.972
Step-by-step explanation:
HELP ASAP PLEASE!
An airplane cuts through the morning sky. For every 1,000 feet that it climbs, the outside temperature drops 20 degrees Fahrenheit. What is the rate of temperature change in degrees Fahrenheit per foot? Complete the steps below to answer the question.
part A: Write the change in elevation and the change in temperature as rational numbers.
part B: Write a numerical expression to represent the rate of temperature change in degrees Fahrenheit per foot.
part C: What is the rate of temperature change in degrees Fahrenheit per foot?
part D: Now, consider the reverse situation: as the airplane descends, or drops, 1,000 feet in the air, the temperature rises 20 degrees Fahrenheit. Write a numerical expression representing the rate of temperature change in degrees Fahrenheit per foot.
part E: What is the rate of temperature change in degrees Fahrenheit per foot?
part F: How is the rate you found in part E related to the rate you found in part C? What does this mean?
Please answer each question separately! :(
Step-by-step explanation:
The air plane is rising so the change in elevation is +1000 feet. The temp dropped and is -20 degrees fahrenheit.
1 degree per 50 ft
For every 1,000 feet that it climbs, the outside temperature drops 20 ... What is the rate of temperature change in degrees Fahrenheit per foot.
Hope I helped
Answer:
Step-by-step explanation:
part A=The airplane is rising, so the change in elevation is +1,000 feet. The temperature is dropping, so the change in temperature is -20 degrees Fahrenheit.
Part B= -20 degrees fehrenheit/1,000 feet
Part C= -20 degrees fehrenheit/1,000 feet= -1 degrees fehrenheit/50 feet
The answer can also be written as -1 degrees fehrenheit/50 per foot.
Part D = The airplane is descending, so the change in elevation is -1,000 feet. The temperature is rising, so the change in temperature is +20 degrees Fahrenheit.
The rate of temperature change in degrees Fahrenheit per foot is 20/-1000
Part E= The answer can also be written as-1/-50
Part F= The rate in part E is equal to the rate in part C. It means that -1/50=1/-50=-1/-50
please please mark as brainliest.!!!
Write the rate as a fraction in simplest form.
6 shrubs every 24 feet
Answer:
1/4
Step-by-step explanation:
6/24 simplifies to 1/4. 1 shrub every 4 feet.
When paying for a restaurant order, a customer gave a $3 tip on a $20 meal. What percent was the tip?
Answer:
.15 or 15%
Step-by-step explanation:
20 × .15 = 3
hope this helps, good luck :)
SOMEONE HELPPPPPPPP
WITH WHAT THE SCREEN MAD BLURRY
A manager uses the following equation to predict monthly receipts: Y-450-10 Lt time in weeks and y = receipts.) What is the forecast for July 14th ift=4 is the fourth week in January and t = 6 is February 14th of the same year (assume there are 4 weeks in each month)?
a. 690
b. 710
c. 730
d. 750
A major reason that decision making is often not such a rational process is that there are: Suppose we have H0:µ1= µ2 versus HA: µ1 ≠ µ2, with level of significance of α =.05 and critical values of zα/2 = ± 1.96, and the computed Test Statistics value of Z = -1.07. What is our decision?
Answer:
b. 710
Fail to reject H0
Step-by-step explanation:
Forecast for July 14 :
Assume there are 4 wwwks in each month :
January to June = ( 4 * 6 months) = 24 weeks in 6 months ;
July - July 14 = 2 weeks :
2 + 24 = 26 weeks
The model given :
Y = 450 + 10t
Y = 450 + 10(26)
Y = 450 + 260
Y = 710
2.)
Test is a 2 tail test :
Zstatistic = - 1.07
At 95% confidence = ±1.96
Zcritical = - 1.96
Hence,
Reject H0 if ;
Zstatistic < Zcritical
-1.07 > 1.96
Hence, fail to reject H0.
karl can flip 3 water bottles in 1/8 of a minute at that rate how many bottles can we expect him to flip in 1 minute
Answer:
Step-by-step explanation:
x/1=3/(1/8)
x=3(8/1)=24 bottles per minute
Fred earns $ 45 mowing the lawn. He spends $ 5 on music, and puts half of what's left in a savings account. He then gets another $ 10 for washing his neighbor's car. First, write the expression that represents the number of dollars Fred keeps (and does not put in his savings account), and then simplify.
Answer:
$30
Step-by-step explanation:
Given that :
Amount earned for mowing = $45
Amount spent on music = $5
Amount earned for washing neighbor's car = $10
Amount saved = half or remaining amount
Amount of dollars Fred keeps =
Amount Fred keeps:
[(Amount earned - amount spent) / 2] + $10
[($45 - $5) / 2] +
($40 / 2) + $10
= $20 + $10
= $30
the original is a square with sides of 1.25 inches. after scaling the logo must have a perimeter of 32 feet. the action is called _____ and the scale factor is ____
Answer:
enlargment and 6.4 feet per inch, enlargement and the scale factor is 6.4 feet per inch
Step-by-step explanation:
Check this link out for your answer: https://brainly.com/question/16564586
un numero entero y racional
Answer:
Los números racionales son aquellos números que pueden ser expresados como una relación entre dos enteros. Por ejemplo, las fracciones 1/3 y –1111/8 ambas son números racionales. Todos los enteros están incluídos en los números racionales, ya que cualquier entero z puede ser escrito como la relación z /1.
Step-by-step explanation:
Select the correct location on the image.
Click the digit in the hundred thousands place.
475,968
Answer:
10 + 10 = 21
Step-by-step explanation:
there there
Answer:
4
Step-by-step explanation:
the 5 is thousand the 7 is ten thousand and the 4 is hundred thousand
Plz help me!
-12 - 58 - (-34) =
-36 would be the answer
hope that helped :)
Answer:
-36
Step-by-step explanation:
-12-58-(-34) or -12-58+34
-70+34 or 34-70
subtract 70 from 34
-36
Hope this helps. Have a nice day you amazing bean child.
Can someone help me, please??
Answer:
im gonna say its the last one
Step-by-step explanation:
all of the graphs and histograms ive seen have a 0 at the y
the sum of 1/7 + 2/5
Answer:
19/35
Step-by-step explanation:
A triangle with side lengths of 15, 18, and 25 is a right triangle. True or False
Is this theorem AA, SSS, or SAS? If so how do you know?
mel and chris share some money in the ratio of 2:5. chris gets £45 more than mel. how much did mel get?
Answer:
mel gets £18
Step-by-step explanation:
5*9=45
and what ever you do to one side you do to the other so then you do
2*9=18
so therefore mel gets £18
Find the m<1
69
71
111
86
Answer:
69
Step-by-step explanation:
m1 = 180 - (180 - 39 - 30) = 180 - 111 = 69