help. i’ll give brainliest & thank you!!
Answer:
The line with a slope of 1/2 is steeper
Step-by-step explanation:
Here, we want to get which slope is steeper
mathematically, when we want to know the line that has a steeper slope, we compare the value of the slopes
The line with a slope that is of greater value will be steeper
Mathematically, 1/2 is a greater number than 1/3
That simply means 1/3 is less steep and thus, the line with the slope of 1/2 is the steeper line
Rachel needs to buy some pencils. Brand A has a pack of 28 pencils for $5.29. Brand B has a pack of 48 pencils for $8.47 . Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent.
Answer:
Hence Brand B is the better buy, since the unit cost is smaller than A
Step-by-step explanation:
Given data
Brand A
Has a pack of 28 pencils for $5.29
unit cost
=5.29/28
=$0.19
Brand B
Has a pack of 48 pencils for $8.47
unit cost
=8.47/48
=$0.18
Need help. I've been stuck on this question for a long time.
Answer:
x = 24.75
Step-by-step explanation:
28/8 = 2x+3/15
420 = 16x +24
396 = 16x
x = 24.75
2(24.75) +3 =
49.5 + 3 = 52.5
Answer:
x=9
Step-by-step explanation:
let's find the scale factor of the enlargement ∆ABC of ∆ADE
k=28/20=7/5 or 1.4
Now k×|AD|=|AB|
Therefore
k×|DE|=2x+3
7/5×15=2x+3
21=2x+3
21-3=2x
2x=18
x=9
let me know if I was right
A metal cyllinder is hollow in the middle. The cylinder is 40 mm long. The hollow center has a radius of 15 mm. The radius from the hollow center to the edge of the metal cylinder is 34 mm. What is the total volume of metal that makes up the cylinder? Leave your answer in terms of \large \pi and round to the nearest hundredth if necesarry. V = \large \pi mm3
Answer:
Answer is in picture and explanation below.
Step-by-step explanation:
Continuing from the picture,
Area of Metal base = Area of Bigger Circle - Area of Hollow Circle
=
[tex]1156\pi {mm}^{2} - 225\pi {mm}^{2} \\ = 931\pi {mm}^{2} [/tex]
Volume of Cylinder = Area of Metal base x Height (Length in this case)
=
[tex]931\pi {mm}^{2} \times 40 \\ = 37240\pi {mm}^{3} [/tex]
please help as soon as possible
Answer:
m = [tex]\frac{4}{3}[/tex]
please help me solve this equation
Answer:
-85
Step-by-step explanation:
We are given the equation [tex]E^8_{n=1}[/tex][tex](-2)^{n-1}[/tex] and are asked to evaluate it.
This can be solved using the geometric sequence, but first we have to determine our "r", "n", and [tex]a_{1}[/tex].
Of course [tex]a_{1}[/tex] is equal to 1. Therefore,
[tex]a_{1[/tex] = 1
[tex]r=[/tex]
[tex]n=[/tex]
(-2) is the change per number in the sequence, therefore -2 is our "r".
[tex]a_{1[/tex] = 1
[tex]r=-2[/tex]
[tex]n=[/tex]
The number "8" on [tex]E^8_{n-1}[/tex] represents the "n". Therefore 8 is our "n".
[tex]a_{1}=1[/tex]
[tex]r=-2[/tex]
[tex]n=8[/tex]
Use the geometric sequence sum formula and substitute :
[tex]a_{1} \frac{1-r^n}{1-r}[/tex]
[tex]1* \frac{1-(-2)^8}{1-(-2)}[/tex]
[tex]1* \frac{1-(-2)^8}{1+2}[/tex]
[tex]1* \frac{1-256}{1+2}[/tex]
[tex]1* \frac{-255}{3}[/tex]
[tex]1 * -85[/tex]
[tex]-85[/tex]
Which set of numbers CANNOT represent the lengths of the sides of a triangle?
O A. 9, 12, 19
O B. 7, 5, 6
C. 6, 8, 11
O D. 7, 18, 11
Answer:
D
Step-by-step explanation:
The problem with D is that 7 + 11 = 18. The rule is any two sides must exceed the third. D gives the shorter + the middle length = the longest length.
That can't work. All the others are fine.
Tatiana has 894 flowers. She is making bouquets with 8 flowers in each bouquet. When she is done making all of the bouquets, how many flowers will she have left over? *
Answer:
6
Step-by-step explanation:
The remainder when 8 divides 894 is 6. So, she will be left with 6 flowers.
Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. What is the median of the data set?
What is the mean and the median
Answer:
You're lucky I have the dot plot, other wise this could not be answered.
Median: 7.5
Mean: 7.5
Yes, they are both 7.5.
hewlpppppppppppppp pweaseee
Answer:
there is no question to be answered.
Step-by-step explanation:
The height of the rectangular prism measures 64 cm. If the height is increased by 1.5 cm, by how much will the surface area of the box increase?
Answer:
Increase in surface area = 126 cm²
Step-by-step explanation:
Surface area of the rectangular prism has the dimensions as
Length = 42 cm
Width = 35 cm
Height = 64 cm
Total surface area of the rectangular prism = 2(lb + bh + hl)
Here, l = Length of the box
b = Width of rectangular box
h = height
Total surface area = 2(42×35 + 35×64 + 64×42)
= 2(1470 + 2240 + 2688)
= 12796 cm²
If height is increased by by 1.5 cm, new height of the box = 64 + 1.5 = 65.5 cm
Surface area of the box = 2(42×35 + 35×65.5 + 65.5×42)
= 2(1470 + 2240 + 2751)
= 12922 cm²
Increase in surface area = 12922 - 12796
= 126 cm²
What fraction is equivalent to 3/12?
A.12/48
B.1/4
C.18/60
D.24/96
Arul performed an experiment to determine which crank powered radio works best. He cranked 15 randomly selected radies of each brand 30 times at the same speed and measured how long the radies played in minutes before running out of power the results of the experiment are displayed in the box plots below
Answer:
50%
Step-by-step explanation:
In the given rectangle
US = 4x - 16 and RO = x + 2, find RT.
Show all the work
Answer:
RT = 24
Step-by-step explanation:
Diagonals of rectangles bisects each other and equal in length (congruent) to each other.
Thus
US = RT
US = 2(RO)
4x - 16 = 2(x + 2)
4x - 16 = 2x + 4
2x = 20
x = 10
RT = 2(RO)
= 2(x+2)
= 2(10 + 2)
= 2(12)
= 24
PLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!!
Answer:
A
Step-by-step explanation:
The correct answer is A!
7. A bucket is empty. You are filling the bucket with water at a rate of
3 inches per second.
a. Plot the points (0,0) and (5, 15).
b. What do the points in part (a) represent?
c. Draw a line through the points.
d. What does the line represent?
e. Write an equation of the line.
Answer:
a. Please find attached the plot of the points (0, 0) and (5, 15)
b. The point (0, 0) represents the start point
The point (5, 15) represents the point in the relationship between the water level and the change in time after 5 seconds
c. Please find attached the graph showing the Linear Trendline drawn between the points (0, 0) and (5, 15)
d. The line represents the possible combination time and water level during filling the bucket
e. The equation of the line is y = 3·x
Step-by-step explanation:
The rate at which the empty bucket is filled = 3 inches per second
a. Please find attached the plot made with Microsoft Excel of the points (0, 0) and (5, 15)
b. The points in part (a) (0, 0) and (5, 15) represent the following stages;
1) The point (0, 0) represents the point where the bucket is initially empty before filling the bucket with water
2) The point (5, 15) represents the 5 seconds of filling the bucket with water to a level of 15 inches
c) Please find attached the plot of the points with a Linear Trendline drawn between the points created with Microsoft Excel
d. The straight line drawn from point (5, 15) and passing through the origin at (0, 0) represents the proportional relationship between the water level in the bucket and the amount of time used in filling the bucket
e. The equation of the line is the equation of a proportional relationship which can be expressed in the following form;
y = kx
k = y/x
At the point (5, 15), we have;
y = 15, and x = 5
∴ k = 15/5 = 3 = The rate at which the bucket is filled with water
k = 3
Therefore, we have;
y/x = k = 3
∴ y/x = 3
y = 3 × x = 3·x
The equation of the line is therefore;
y = 3·x
Determine the value of x in the diagram.
Evaluate the expression when m = 9
m^2 - 14
Step-by-step explanation:
[tex] {9}^{2} - 14 = \\ = 81 - 14 = \\ = 67[/tex]
Answer:
[tex]\Large\boxed{\sf{67}}[/tex]Step-by-step explanation:
You must find the value of m in order to evaluate the expression.
[tex]\sf{m^2-14}[/tex]
For m=9
[tex]\sf{9^2-14}[/tex]
Solve.
Use the order of operations.
PEMDAS
ParenthesesExponentsMultiplyDivideAddSubtractFirst, do exponents.
[tex]\sf{9^2-14}[/tex]
[tex]\sf{9^2=9*9=81}[/tex]
[tex]\sf{81-14}[/tex]
Subtract.
[tex]\sf{81-14=\boxed{\sf{67}}[/tex]
[tex]\Longrightarrow: \boxed{\sf{67}}[/tex]
Therefore, the correct answer is 67.I hope this helps. Let me know if you have any questions.
A textbook store sold a combined total of 470 biology and history textbooks in a week. The number of history textbooks sold was 62 less than the number of biology textbooks sold. How many textbooks of each type were sold?
Israel planted 4 tomato seeds in his garden. Then he planted flower seeds in each of his three neighbor's gardens. Which expression represents the number of seefs isrsel planted
Answer:
4 + 3n
Step-by-step explanation:
Number of seed planed in his garden = 4
Let the Number of seed planted in each neighbor's garden = n
Number of neighbors he has = 3
The total number of seeds planted can be represented by the equation :
Number of seeds planted in his garden + (number of neighbors * number of seeds planted in each neighbors garden)
4 + 3n
which choice is equivalent to the expression below? 12^-2
12 Points!!!!
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
[tex]12 {}^{ - 2} = 0.00694444444 = \frac{1}{144} [/tex]
What is the perimeter of this regular pentagon?
Answer: P= 5 Hope I helped you
Help with the this question pleaseeee
Answer:
32x - 8
Step-by-step explanation:
A = LW
A = (8x - 2)(4)
A = 32x - 8
Determine the value of X
Answer:
x=17
Step-by-step explanation:
There are two congruent angles so we can double the given values and set that equal to 360. After setting that equal to 360 you find that x is equal to 17, then you plug that into the original equations and get your angles
If a dolls cup holds 2ml, how many cups would it take to fill a doll's 10ml bottle
Answer:
it would take 5 dolls cups
What is the value of y? Enter your answer as an exact value in the box
Answer:
y = 3
hope it helps and your day will be full of happiness
Simplify:
4(6-2) + 62 - 52
Submit
Answer:
26
Step-by-step explanation:
4 (6-2) + 62 - 52 =
4 x 4 + 62 - 52 =
16 + 62 - 52 =
78 - 52 = 26
26
I need help with this please
Answer:
Part A
2·a + b ≤ 14
Part B
Please find attached the graph of the inequality created with Microsoft Excel
Part C
1) 4 pounds of apples + 8 pounds of bananas
2) 8 pounds of apples + 6 pounds of bananas
Step-by-step explanation:
Part A
The amount Tony has to buy apples and bananas = $14
The cost of apples per pound = $2
The cost of bananas per pound = $1
Let 'a' and 'b' represent the number of apples and bananas Tony buys respectively, we have;
2·a + b ≤ 14
Part B
In order to plot the inequality, we make one of the variables the subject of the inequality as follows;
b ≤ 14 - 2·a
The above inequality can be plotted with Microsoft Excel and the feasible region shaded as shown in the attached diagram
Part C
Two possible combinations of pounds of apples and bananas that Tony can buy are;
1) 4 pounds of apples and 8 pounds of bananas which gives 2 apples and 8 bananas
2) 8 pounds of apples and 6 pounds of bananas which gives 4 apples and 6 bananas
What is the value of the discriminant, b2-4ac, for the quadratic equation 0=x^2-4x+5, and what does it mean about the number of real solutions the equation has
Answer:
-4, no real solutions
Step-by-step explanation:
b^2 is 16 since b is -4
4ac = 4*1*5 = 20
16 - 20 is -4
no real solutions since you cant get the squareroot out of a negative number (at least not real numbers)
Answer:B
Step-by-step explanation: The discriminant is −4, so the equation has no real solutions.
Got it from EDG Its right trust
Please answer this correcttly, I will give brainliest if it is correct and you get 13 points
Answer:
UNSCRAMBLE
Step-by-step explanation: