Answer:
She's paid 7.50 pounds an hour
Step-by-step explanation:
7.50 x 8 = 60
I need to know 9 and this app is the only place that helps
23 The value in dollars, y, of a carx years after it was purchased can be modeled by
the function y - 14,000 - 875x. What is the meaning of the y-intercept of the
linear model?
А The initial value of the car is $14,000.
B
The average value of the car is $14,000.
C The car's value decreases by $875 each year after it was purchased.
D The car's value decreases by $16 each year after it was purchased.
What is the area of the figure?
An irregular shape that is made of two rectangles end to end that are eight inches long each and four inches wide. The total length of the base is sixteen inches. With two right triangles on top of the rectangles so the right angles meet the sides of the rectangles. The total length of each side with the width of the rectangle and the side of the triangle is seven inches.
88 square inches
96 square inches
120 square inches
80 square inches
The area of the figure is 80 square inches. Check more about area below.
What is the irregular shape about?To find the area:
Lets take area as A.
Therefore,
Note that rectangles A is eight inches long each and four inches wide. base: sixteen inches and width is seven inches.
A= rectangles A - rectangles B
= 16 * 7 - 8 * 4
=112- 32
80
Therefore, the area of the figure is 80.
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At what time a person can travel 800 meters at 36 km per hour
Answer:
.02 hours
or
1.2 minutes
Step-by-step explanation:
800 meters is .8 kilometers (because there are 1000 meters in a kilometer).
Now just do dimensional analysis.
.8 km 1 hour
-------- x -------- = .02 hours
. 1 36 km
To find minutes, multiply .02 by 60.
(.02)(60)=1.2 minutes
one of the factors of 4x^2-9 is
(1)x+3
(2)2x+3
(3)4x-3
(4)x-3
Answer:
[tex]2x+3[/tex]
Step-by-step explanation:
[tex]4x^2-9=(2x)^2 -3^2=(2x-3)(2x+3)[/tex]
Laura ordered 3 pizzas for her
party. Each pizza had 8 slices.
•1
of the cheese pizza was
left.
•2 of the pepperoni pizza was
eaten.
*2 slices of the sausage pizza
was left.
How many slices of pizza were
eaten at the party?
Answer:
15 slices of pizza was left!
Step-by-step explanation:
First we multiply
3 x 8
Answer : 24 all slices combine
7 slices were ate on the first pizza
2 slices were ate on the second pizza
6 slices were ate on the third pizza
add them all up and get 15
Hope this helps!
A truck moving down a road creates whirling pockets of air called a vortex train. Use the figure to classify the symmetry of a vortex train.
The vortex train has (select)
(select)
translation symmetry
translation symmetry and glide reflection symmetry
glide reflection symmetry
Your neighborhood gym tracked how many days
number of days per week a member worked out.
each of its members worked out over the past week. Let G = the
Number of Days
Probability
Interpret the standard deviation of G.
O The mean number of days a member worked out would typically be
about 1.6764 from the expected number of
days
The mean number of days a member worked out
days.
typically be about 2.2913 from the expected number of
The number of days a member worked out would typically be about 1.6764 from the expected number of days.
The number of days a member worked out would typically be about 1.6764 from the mean about 68% of the
tme.
The correct interpretation of the standard deviation of the given discrete distribution is:
The mean number of days a member worked out would typically be about 1.6764 from the expected number of days.
What are the mean and the standard deviation of a discrete distribution?The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.The standard deviation is the square root of the sum of the difference squared between each outcome and the mean, multiplied by it's respective probabilities.Hence:
E(X) = 0.4(0) + 0.12(1) + 0.13(2) + 0.15(3) + 0.06(4) + 0.02(5) + 0.02(6) + 0.01(7) = 1.36
[tex]\sqrt{V(X)} = \sqrt{0.4(0-1.36)^2 + 0.12(1-1.36)^2 + 0.13(2-1.36)^2 + \cdots + 0.01(7-1.36)^2} = 1.674[/tex]
Hence the correct option is:
The mean number of days a member worked out would typically be about 1.6764 from the expected number of days.
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Answer:
c
Step-by-step explanation:
Type the correct answer in each box. if necessary, use / for the fractions bar(s).
A triangular shaped price of paper has an area of 1296 and a base of 6 find the height
Answer: 432
Step-by-step explanation:
The formula for the area of a triangle:
[tex]A=[/tex] [tex]\frac{H*B}{2}[/tex]
Substitute area and base:
[tex]1296 = \frac{H*6}{2}[/tex]
Multiply by the denominator to eliminate the fraction:
[tex]2*1296 = \frac{H*6}{2} *2\\[/tex]
[tex]2592=H*6[/tex]
Inverse operations to isolate the variable:
[tex]\frac{2592}{6} =H[/tex]
[tex]H = 432[/tex]
Height is 432
What is the conditional probability that exactly four heads appear when a fair coin is flipped five times, given that the first flip came up heads?.
Answer:
Step-by-step explanation:
wow, they really try to make these probablity questions difficult. so they say 5 but really, b/c the 1st one is heads , we are tossing the coin 4 more times, to find 3 heads b/c we already got one. wow, I'm mad at the teacher that asked this. :P Just say 4 flips for 3 heads.
P(H) = heads
P(H) =1/[tex]2^{4}[/tex] probability is 1/[tex]2^{4}[/tex] because we have two outcomes and four tries.
P(H) = 1/16
P(H>=3) 3 * 1/16
P(H>=3) = 3/16
if there is an argument that you have to take 1/[tex]2^{5}[/tex] into account by the teacher tell them that it was already resolved , the first flip is not a "probablity" any longer. It's heads, 100% , it doesn't affect the next tosses b/c this is a "fair" coin and it's going to land on heads 50% of the time, for every toss. Just my rant. :P
A person invests 6000 dollars in a bank. The bank pays 6.5% interest compounded semi-annually. To the , how long must the person leave the money in the bank until it reaches 15100 dollars?
Answer:
14.43 years
Step-by-step explanation:
FV = PV (1+i)^n
FV = future value = 15100 PV = present value = 6000
i = period interest in decimal = .065/2 = =.0325
n = periods = the question
15100 = 6000(1+.0325)^n
solve for n = 28.86 periods or 14.43 years (each period is 6 mos)
In a bag of marbles there are 7 blue, 3 red, 14 yellow, 1 white, and 10 black.
What is the ratio of blue and yellow marbles to white and black marbles?
a
7 to 11
b
14 to 10
c
21 to 11
d
11 to 21
e
20 to 10
Answer:
c) 21 to 11
Step-by-step explanation:
Finding the ratio :
⇒ Number of blue + Number of yellow : Number of white + Number of black
⇒ 7 + 14 : 1 + 10
⇒ 21 : 11
⇒ 21 to 11
27.
The mass of a block of ice decreases from 80kg to 64kg.
Calculate the percentage decrease.
A percentage is a way to describe a part of a whole. The percentage decrease will be 20%.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
The percentage change is calculated as,
Percentage Change= (Initial Value - Final value)/Initial Value × 100%
Given initially the mass is 80kg, while the final mass is 64 kg, therefore, the percentage change can be calculated as,
Percentage change = (80-64)/80 × 100% = 20%
Hence, the percentage decrease will be 20%.
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can anyone help me with this slope-length activity? whoever answers will get 5 stars and brainliest, i know its a bit of work so I'd really appreciate it, I've been rlly struggling with this unit. this is 10th grade geometry
Answer:
Step-by-step explanation:
Giving 20 Brainly points pls solve
The volume of the cylinder is 254,571.43cm³.
The surface area of the cylinder is 22,628.57 cm².
What is the volume of the cylinder?A cylinder is a three-dimensional object. It is a prism with a circular base.
Volume of a cylinder =πr²h
π = 22/7r = radius = diameter / 2 = 60/2 = 30cm22/7 x (30²) x 90 = 254,571.43cm³
Surface area = 2πrh + 2πr²
(2 x 22/7 x 30 x 90) + (2 x 22/7 x 30²)
16, 971.43 + 5657.14 = 22,628.57 cm²
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What is the difference between 120 &-50 on a number line
Answer:
170 is the difference between 120 & -50 on a number line
Step-by-step explanation:
so - 50 to 0 is 50
than 0 to 120
so, |-50| + 120 = 170
what is the answer to this question
i will mark brainlist please help what is the vertex of the parabola
PLS HELPP NEED QUICK WILL GIVE BRAINLEST!
SHow ur work pls
The area of a 2D form is the amount of space within its perimeter. The area of the right triangular prism is 1,200 m².
What is an area?The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.
The area of the triangular prism can be written as,
Total surface Area
= Area of two rectangle face + Area of two triangular face + Area of base
= 2(17×15) + 2(0.5×30×8) + (30×15)
= 2(255 in²) + 2(120 in²) + 450 in²
= 1,200 in²
Hence, the area of the right triangular prism is 1,200 m².
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How would the mean change if the number 4 were added to the set?
3, 3, 2, 2, 2, 8, 8, 4
Question 4 options:
decrease
increase
no change
The mean of a given set 3, 3, 2, 2, 2, 8, 8, 4 is 4. if the number 4 were added to the set then it won't change in mean.
What are mean and median?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
The given set is
3, 3, 2, 2, 2, 8, 8, 4
The mean will be
Mean = Sum of observations/the number of observations
= [tex]\frac{3+ 3+ 2+ 2+ 2+ 8+ 8+ 4}{8} \\\\\frac{32}{8} \\\\4[/tex]
if the number 4 were added to the set.
4 + 32 we get 36 and since you added one more number, we will take a number of terms 9.
So, the mean becomes
= [tex]\frac{36}{9} \\\\4[/tex]
Hence, the mean doesn't change.
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Select all the expressions that have a value of 7,193.
A: 38,977-31,884
B: 39,616-32,323
C: 42,014-34,821
D: 50,000-42,807
E: 78,792-71,699
The correct answers are, C and D
Please answer this! 30 points
Answer:
i think light blue
Step-by-step explanation:
that or dark blue but you have to graph the answer to find where it lands.
5. Graph the equation x + 2y + 3z = 6.
Answer:
Step-by-step explanation:
x+2y+3z=6
Plane xy
z=0→x+2y+3(0)=6→x+2y+0=6→x+2y=6
x=0→0+2y=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)
It's not the first graph, because at plane xy when x=0, y=2
In the second and third graph, at plane xy, when x=0, y=3
y=0→x+2(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)
It's not the third graph, because at plane xy when y=0, x=3
It's the secon graph, because at plane xy when y=0, x=6.
Let's check the other planes:
Plane yz
x=0→0+2y+3z=6→2y+3z=6
z=0→2y+3(0)=6→2y+0=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)
In the second graph, at plane yz, when z=0, y=3
y=0→2(0)+3z=6→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)
In the second graph, at plane yz, when y=0, z=2
Plane xz
y=0→x+2(0)+3z=6→x+0+3z=6→x+3z=6
z=0→x+3(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)
In the second graph, at plane xz, when z=0, y=6
x=0→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)
In the second graph, at plane xz, when x=0, z=2
suzy says that the equation below has two real solution to do agree with suzy
y= x ^ 2 + 8x - 3
of 30 1/3 students, play sports. Of those who play sports, 2/5 play soccer. How many play soccer?
12 2/15...
hope it helps...!!!
please solve this for me asap
[tex] \: \: \: \: \: \: \: \underline {\boxed{ \sf{ \huge{\pink \star }P = a + b + c }}}[/tex]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[tex] \longrightarrow\sf{P = a + b + c }[/tex]
[tex]\longrightarrow\sf{P = 5 + 12 + 7}[/tex]
[tex]\longrightarrow\sf{P = 24}[/tex]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Therefore , the perimeter of triangle is 24 cm
Answer answer please
Answer: 5/10
Step-by-step explanation: You can see theirs 10 spaces all around which adds up to 10 count the grays and you get 5. 5/10.
Answer: correct answer is choice c which 5 over 10 .
Step-by-step explanation: as total parts in the circle is 10 and 5 are shaded so 5 over 10 . HOPE IT HELPS YOU .PLEASE GIVE BRAINLIEST .THANKS .
Two cones are similar. The surface area of the larger cone is 65π square inches. The surface area of the smaller cone is 41. 6π square inches. The radius of the smaller cone is 6. 4 inches. What is the radius of the larger cone? 8 inches 10 inches 11. 52 inches 14. 4 inches.
Answer:
the answer is 145
Step-by-step explanation:
Four students provide the following approximations for StartRoot 0. 89 EndRoot. Anyah states that StartRoot 0. 89 EndRoot is between 0. 44 and 0. 45 because 0. 44 less-than StartFraction 0. 89 Over 2 EndFraction less-than 0. 45. Matthew states that StartRoot 0. 89 EndRoot is between 0 and 1 because 0 less-than 0. 89 less-than 1. Rhoda states that StartRoot 0. 89 EndRoot is between 0. 9 and 1. 0 because 0. 9 squared less-than 0. 89 less-than 1. 0 squared. Ming states that StartRoot 0. 89 EndRoot is between 0. 93 and 0. 95 because (0. 93) squared less-than 0. 89 less-than (0. 95) squared. Which solution(s) are correct? Anyah's only Ming's only Anyah’s, Matthew’s, and Rhoda’s Matthew’s, Rhoda’s, and Ming’s.
The solutions to the square root of 0.89 that are correct are Matthew’s, Rhoda’s, and Ming’s.
What is the square root of 0.89?The square root of a number is the number that divides a number into equal halves. The sign used to denote square root is √.
√0.89 = 0.94
0 < 0.89 < 1
0.9² < 0.89 < 1²
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