Answer:
6x + 4
Step-by-step explanation:
-2(-3x-2) = -2 × -3x + -2 × -2 = 6x + 4
Answer:
6x + 4
Step-by-step explanation:
up
is this 8 I will mark you as Braiylist
Answer:
Yes it is.
Step-by-step explanation:
The students at view side elementary school had a read a thon the teachers kept track of how many books the students in each grade level read estimate the total number of books the students read round each number to the nearest hundred to help you find your answer
Kindergarten 247, first grade 385 , second grade 1347 and third grade 1549
Answer:
Estimate = 3400 books
Step-by-step explanation:
Given that:
Books read by students.
Kindergarten 247
First grade 385
Second grade 1347
Third grade 1549
We have to round the each number to nearest hundred.
247 rounded to the nearest hundred is 200.
385 rounded is 400
1347 rounded is 1300
1549 rounded is 1500
Total = 200 + 400 + 1300 + 1500 = 3400
Hence,
Estimate = 3400 books
I need help plzzzzzzzz
Answer:
B and 7
Step-by-step explanation:
because 9 minus 2 is 7
find slope of the graph 9x-3y=15
[tex]y = mx + b[/tex]
where m = slope and b = y-intercept.
What we have to do is to make the y-term as the subject of equation.
[tex]9x - 3y = 15 \\ 9x - 15 = 3y \\ \frac{9x - 15}{3} = y[/tex]
Simplify[tex] \frac{9x}{3} - \frac{15}{3} = y \\ 3x - 5 = y \\ y = 3x - 5[/tex]
From y = mx+b, the slope is 3.
Answer[tex] \large \boxed {slope = 3}[/tex]
What is the lowest common denominator for the
problem: 5/6 + 5/9
I need help
is y=5x+3 proportional?
The expanded form of 2^3
Answer:
2*2*2
Step-by-step explanation:
i think it prob wrong or its 8
An analyst wants to determine the relationship between speed, in miles per hour, and the time, in hours, it takes to drive 5 miles. Twenty trials are completed and the correlation coefficient between speed and time is determined to be -0.276. Therefore, slower speed was related to greater time. How is the correlation affected if the units for time are changed from hours to minutes?
Answer:
Answer below:
Step-by-step explanation:
SPEED (in miles/hour), TIME (in hours)
This analyst determined the relationship between the 2 measures above, using 20 trials.
The correlation coefficient between both factors was -0.276
Now, correlation coefficient is a figure that shows the strength and direction of two quantities. The quantities here are speed and time.
The minus sign in this correlation coefficient shows a negative movement of one quantity against the other. In other words, as one quantity moves up, the other goes down, and vice versa. An increase in magnitude of speed will result in a decrease in magnitude of time spent driving. Vice versa.
If you plot speed against time, the graph (that joins each point of intersection of speed and time together) will slope downwards showing the opposing movements of time and speed.
How is the correlation affected if the units for time (time only, not speed) are changed from hours to minutes?
If the units for each time measured are changed to minutes while that of speed is left in hours, the magnitude of each time measured will increase by 60.
For example, if three of the twenty trials have the following values for time - 1.5 hours, 2.3 hours, 3.6 hours
then they will be multiplied by 60, in order to change to minutes. The new values are shown below:
90 minutes, 138 minutes, 216 minutes
THIS CHANGE ON THE VARIABLE TIME ALONE, WILL CAUSE IT TO CARRY MORE MAGNITUDE WHILE THE TIME IN THE MEASUREMENT OF SPEED REMAINS THE SAME.
WHAT THIS WILL DO TO THE CORRELATION COEFFICIENT IS: to lower the value of the figure from 0.276 to a value like 0.043
The minus sign will still remain, as speed and time are still moving in opposite directions.
The value of the correlation coefficient will drop!
please help 20 points
Answer:
a. Set up a ratio.
[tex] \frac{12g}{16mL} \\ [/tex]
b. Divide the numerator by the denominator to get the mass (in g) of 1 mL.
[tex] \frac{12g}{16mL} = \frac{3g}{4mL} \\ [/tex]
c. The density is 0.75 g/ mL
Would you be breaking the speed limit in a 40 mi/h zone if you were traveling at 60km/h?
Since 40 mi/h is greater than 60 km/h. Therefore, 60 km/h is not breaking the speed limit given.
We need to check if would you be breaking the speed limit in a 40 mi/h zone if you were travelling at 60 km/h.
What is the speed?The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).
To check whether the speeds are the same, make their units the same.
As we know, 1 mile = 1.60934 km
So, 40 miles = 64.3736
≈64
Then, the speed =64 mile/h
Since 40 mi/h is greater than 60 km/h. Therefore, 60 km/h is not breaking the speed limit given.
To learn more about the speed visit:
https://brainly.com/question/7359669.
#SPJ2
Solve for a and b. 40 30 5
ASAP determine whether the polygons are similar
Answer:
Not similar
Step-by-step explanation:
For two triangles to be similar , their sides should be in the same ratio. Here the sides are ,
First ∆ = 5 , 5 & 3 Second ∆ = 6 , 6 & 4Ratio of first sides :-
= 6/5 = 1.2
Ratio of second sides :-
= 6/5 = 1.2
Ratio of third sides :-
= 4/3 = 1.33
Since the ratio of all three sides are not same , Hence the two triangles are not similar.
Hence the two triangles are not similar .Is -$10 a solution? Substitute -10 into the inequality
in the example to check.
Answer:
Yes
Step-by-step explanation:
-10 is less than 20
Cane buys candy in bulk and sells it at a 25% markup. It represents the original cost of the candy which expression represents the marke price? A. 25c.
B. 0.75
C. 1.250
D. 1.250 -1.25
Answer:
1.25c
Step-by-step explanation:
Given that :
Original cost of candy = c
Markup percentage = 25%
Markup price will be = original price(1 + markup percentage)
Marked up price = c(1 + 0.25)
Marked up price = c + 0.25c
Marked up price = 1.25c
Choose the graph that represents a linear function.
Answer:
the graph that represents a linear are right and a
An airline conducts a survey to determine customer
satisfaction.
Which of these methods will produce the most representative sample of the
population of airline customers?
Answer:
B
Step-by-step explanation:
After the passengers have reached their destination they will provide their honest feedback on the survey because they have just experienced the airline.
Answer:
the answer is (C)!!!
Step-by-step explanation:
I need help!! It is due today!! It’s Geometry !!!
Answer:hi the answer is x=6
hope this helped
Step-by-step explanation:
Which function is not a linear function?
Answer: upper left corner
This is an absolute value function. It is a piecewise function composed of two different linear equations (they are glued together at the vertex), but it is not overall a single straight line compared to the other graphs.
Which power does NOT have a value of 64?
A. 2 ˄6
B. 8 ˄2
C. 4 ˄3
D. 32 ˄2
Johnny drove 300 miles using 20 gallons of gas. How many miles can he drive on 1
gallon of gas?
just divide 300/20 to get 15
answer is 15
hope this helps
:)
How many lines of symmetry does a smiley face have
Answer:
1
Step-by-step explanation:
Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per
gigabyte. She wants to keep her bill at $63.10 per month. Write and solve an equation
which can be used to determine x, the number of gigabytes of data Lily can use while
staying within her budget.
equation:
answer x=
Answer:
Equation : y = 4x + 55.50
x = 1.9 gigabytes
Step-by-step explanation:
Given that:
Flat fee per month = $55.50
Cost per gigabyte = $4
Let,
x be the number of gigabytes.
y be the total cost
y = 4x + 55.50
Lily wants to keep her bill $63.10
63.10 = 4x + 55.50
63.10 - 55.50 = 4x
4x = 7.60
Dividing both sides by 4
[tex]\frac{4x}{4} = \frac{7.60}{4}\\x=1.9[/tex]
Hence,
Equation : y = 4x + 55.50
x = 1.9 gigabytes
Answer:
Equation: 4x+55.5=63.1
Answer: x=1.9
simplified surd of 130
Answer:
The square root of 130 cannot be simplified. √130 is already in its simplest radical form. If you are using a computer that has Excel or Numbers, then you can enter SQRT(130) in a cell to get the square root of 130.
Step-by-step explanation:
Please mark me the brainliest it i helped you
Y is between X and Z. XY = 7x + 1, YZ = 2x + 7 and XZ = 98. Find
the value of 'x'.
Step-by-step explanation:
the value of x is 4.
Answer:
4
Step-by-step explanation:
i am, a master of the diareah
This is about similar polygons in geometry
Arthur's dog, Shep, had to go on a diet. After three months of dieting, Shep had lost 16% of his weight, which was 24 pounds. How much did Shep weigh before he was put on a diet?
Answer: 150 pounds
Step-by-step explanation:
Let her initial weight be represented by x.
Since Shep had lost 16% of his weight, which was 24 pounds. Shep weight before he was put on a diet would be:
16% × x = 24
0.16 × x = 24
0.16x = 24
x = 24/0.16
x = 150 pounds
The bakers at healthy bakery can make 340 bagels in 5 hours
Answer:
nice how many cals is one
Step-by-step explanation:
Answer:
cool
Step-by-step explanation:
they can make 68 bagels per hour if that was what you wanted to know
Which describes the intersection of planes A and B?
O line CD
O line ED
O point C
O point D
Step-by-step explanation:
° The intersection of two planes is a line. looking in your diagram, line ED is where planes A and B intersect; this means line ED is Our answerI hope it's helpA surf charges $6 to rent a wetsuit and $12 per hour to rent a surfboard write the function to model the cost for wetsuit and hours for the surfboard
Answer:
6h+12h=m
h m
1 18
2 36
3 54
4 72
5 90
6 108
7 126
8 144
9 162
10 180
Step-by-step explanation:
can someone help solve this? if you do, don't put a picture because i can't see them.
Answer:
1.22500
Step-by-step explanation:
