Car insurance companies want to keep track of the average cost per claim. The current data in use for Auto Insurance R Us is an average of $2,200 for each claim with a standard deviation of $500. With this average, the company can stay competitive with rates but not lose money. However, the statistician for the company believes that the cost of the average claim has increased. He pulled 40 recent claims and found the average to be $2,350. Which most restrictive level of significance would suggest that the company should raise rates? Upper-Tail Values a 5% 2. 5% 1% Critical z-values 1. 65 1. 96 2. 58 1% 2. 5% 5% 10%.
Please help (the rest of this is filler so i can actually ask my question
Answer:
1. Scale factor - 7
Length of x - 28
2. Scale factor - 4
Length of x - 32
3. Scale factor - 3
Length of x - 9
The graph of a function f is shown below find f(3) (please help!)
Answer:
f(3)=1
Step-by-step explanation:
Basically, you go 3 units right on the x-axis starting from the origin (0,0), and go up until you touch the graph of the function. In this case, f(3)=1
Which of the following constructions can be accomplished with paper folding? Check all that apply
Answer:
B, C, and D.
Step-by-step explanation:
1. Finding the midpoint of a portion
2. Drawing an opposite line portion from an offered indicate a given fragment
3. Drawing an opposite line portion through a given point on a given section
4. Drawing a line through a given guide parallel toward a given line
Pls, choose me as brainliest!
The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price. Find the discount percent and profit percent.
Answer:
Discount=20%
Profit=14.20%
Step-by-step explanation:
If the volume of 1 block is 1 cubic unit, find the total volume of the given figure.
Answer:
16 cubic units
Step-by-step explanation:
Volume of 1 block = 1 cubic unit
No. of blocks = 16
Total volume = 1 x 16
= 16 cubic units
The total volume of the figure is 16 cubic units if the volume of 1 block is 1 cubic unit.
What is a cube?
It is defined as three-dimensional geometry that has six square faces and eight vertices.
We have:
1 block = 1 cubic unit
Total number of blocks = 16
Total volume of the figure = 1×16 = 16 cubic units
Thus, the total volume of the figure is 16 cubic units if the volume of 1 block is 1 cubic unit.
Learn more about the cube here:
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54=6a+18b
3a-9b=-27
please add the steps
Answer:
....
....
....
...
.....
.....
please help this is due tomorrow
Answer:
=
Step-by-step explanation:
3 feet = 1 yard, so knowing this, if you divide 12 feet by 3, you get 4
Another way you could check this is if you multiply the 4 yards by 3 feet per yard. You would get 12 feet.
Either way you do it, they are equal
Answer:
=
Step-by-step explanation:
I am going to assume that this question is asking us to compare the two measures of distance.
To do this, we need to convert them into the same unit. I am going to convert 4 yards into feet and leave 12 ft as 12 feet.
4 yards * 3 feet in a yard = 12 feet
Using the reflexive property, 12 feet is equal to 12 feet, so '=' completes this question.
Determine the Eccentricity of the Hyperbola
Answer:
The eccentricity of a hyperbola is calculated using the length of the transverse axis and the length of the conjugate axis.
Step-by-step explanation:
hope it helps!!!
Answer:
The eccentricity of a hyperbola is calculated using the length of the transverse axis and the length of the conjugate axis.
Step-by-step explanation:
Brainleist
I want 5 halves of a cupcake for myself 6 halves for my friend and 1 half for our other friend
Answer:
5+6=11+1=12
Step-by-step explanation:
what is 12 halves? 6
Answer and explain? I've been getting a lot of these questions wrong lately lol.
Answer:
the answer is 31!
Step-by-step explanation:
So if you do 12 x 3 that is 36 and 36-5 is 31
so then you see if it works
31 +5 = 36
36/3 = 12
Answer:
number: 31
Let the number be x
This number is added by 5, so: x + 5
Then we divide it total by 3, so: (x + 5)/3
And this equals to 12, (x + 5)/3 = 12
Solve for unknown number:
(x + 5)/3 = 12
x + 5 = 36
x = 36 - 5
x = 31
What is the slope of a line perpendicular to the line whose equation is 9x-3y=81.
Answer:
If a line has slope =m
then the slope of a line perpendicular to it is
(
−
1
m
)
Rewrite
5
x
+
3
y
=
8
in a slope-offset format
y
=
−
5
3
x
+
8
3
So the given equation has a slope of
(
−
5
3
)
and a line perpendicular to it has a slope of
(
3
5
)
Step-by-step explanation:
what statement is true? (Please help‼️)
Answer:
The statement that is accurate is A and pls 5 stars and brainliest
Step-by-step explanation:
y=2x+1 when x increases by 5,y increases by
Answer:
10
Step-by-step explanation:
say x=0
then y would be 1
increasing x by 5 makes x=5
and then 5 x 2 + 1=11
so y went from 1-11(difference of 10) with the variation
so the answer is 10
(Pls Need Help with 2 questions ASAP)
Answer:
first answer is y = 2x + 2
second answer is y = 1/4x + 6
Step-by-step explanation:
sooo to find the slope you can just count it but i feel like using the equation
y2 - y1 / x2 - x1
is better
so lets substitute
6 - (-6) / 2 - (-4)
6 + 6 / 2 + 4
12 / 6
y = 2x + b
to find b we substitute a point we did not use yet (-2, -2)
-2 = 2(-2) + b
-2 = -4 + b
b = 2
y = 2x + 2
second question:
we do the same thing
(-4, 5) (8, 8)
8 - 5 / 8 - (-4)
3 / 12
1/ 4
y = 1/4x + b
since the graph shows the y intercept (0, 6) we can input it into the equation
y = 1/4x + 6
i cant check it (with a point) because there are not a lot of exact points, but this should be the answer
I don’t understand can someone help
Answer:
200 cm^3
Step-by-step explanation:
See attached image.
Solve this system of equations using the substitution method.
y = 5x
3x + 16 = y
tyty
Answer:
x=8
Step-by-step explanation:
3x+16=5x
16=2x
8=x
Zoe is exactly twelve and one-half years old, and her niece Yolonda is one-third as old as Zoe. Yolanda is ? Months old
Answer:
The answer is 4.16!
Step-by-step explanation:
i think that is right
How do you add numbers like 1 and 2. Ez pts
Answer:
On a number line think "I'm at number 1 and if I move myself up another line, and then another, I have just added 2, and gotten myself to 3" Answer is 1+2=3. THANK YOU FOR THESE EZ POINTS!
Step-by-step explanation:
a group of friends go scuba diving. they rent a boat for x days and scuba gear for y people, represented by the equation 120x+50y=1000
how much money is spent in total?
friends go scuba diving. they rent a boat for x days and scuba gear for y people, represented by the equation 120x+50y=1000
how much money is spent in total
A triangular prism has a height of 12 cm. The triangular base is a right triangle whose side lengths are 3 cm, 4 cm, and 5 cm. What is the total surface area?
Answer:
The volume of the prism is 72 cubic cm.
Step-by-step explanation:
This we know because a triangle with sides of 3 units, 4 units, and 5 units must be a 3–4–5 right triangle, the catheti (“legs”) of which are 3 and 4 units. So the area of the base is
3 cm. * 4 cm. / 2 = 6 square cm.
Lastly, the volume of the prism is the base area multiplied by the height:
6 square cm. * 12 cm. = 72 cubic cm.
need help. please. 8
Step-by-step explanation:
sin²(x) + cos²(x) = 1
cos²(x) = 1 - sin²(x)
cos(x/2) = ±sqrt((1 + cos(x))/2)
in our case
sin(x) = 1/4, tan(x) > 0, so cos(x) is positive too.
sin²(x) = 1/4² = 1/16
cos²(x) = 1 - 1/16 = 15/16
cos(x) = sqrt(15)/4
cos(x/2) = sqrt((1 + sqrt(15)/4)/2) = sqrt(1/2 + sqrt(15)/8) =
= sqrt(8/16 + 2×sqrt(15)/16) =
= 1/4 × sqrt(8 + 2×sqrt(15))
so, D is correct
I need help please you will get branliest
Answer:C= 9
Step-by-step explanation:
c−7=1×2
c−7=2
c=2+7
c=9
Answer:
9
Step-by-step explanation:
C-7/2=1
cross multiplying
C-7=2×1
C-7=2
C=2+7
C=9
Can you please help me with this question
help
(in the picture)
Answer:
D) Figure M
A) Figure J
Step-by-step explanation:
Chad drew a scale drawing of the middle school. The gym, which is 81 feet long in real life, is 9 inches long in the drawing. What scale did Chad use?
1 inch : what
feet
The scale that Chad used in the scale drawing is 1 inch: 9 feet
What is a ratio?A ratio is a quantitative relationship between two different numbers that express the number of times in which a number is divisible within the other number.
In real life, If the gym is 81 feet long.In the drawing, if the gym is 9 inches long.In the ratio of an inch to feet; the scale that Chad used is:
= 1 inch : 9 feet
This is because 9 inches is divisible within the other number (i.e. 81 feet) in 9 times.
Learn more about ratio here:
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I need help pls in order to find the square pyramid
Step-by-step explanation:
the ground level but not really sure
help asap brainlist?!??
Answer:
(2, 3 )
Step-by-step explanation:
5x - 4y = - 2 → (1)
2x + 4y = 16 → (2)
add (1) and (2) term by term to eliminate y
7x + 0 = 14
7x = 14 ( divide both sides by 7 )
x = 2
substitute x = 2 into either of the 2 equations and solve for y
substituting into (2)
2(2) + 4y = 16
4 + 4y = 16 ( subtract 4 from both sides )
4y = 12 ( divide both sides by 4 )
y = 3
solution is (2, 3 )
Answer:
( 2 , 3 )
Step-by-step explanation:
5x - 4y = - 2 ⇒ ( 1 )
2x + 4y = 16 ⇒ ( 2 )
( 1 ) + ( 2 )
5x - 4y + 2x + 4y = -2 + 16
7x = 14
Divide both sides by 7.
x = 2
Now let us take equation (1) to find the value of y.
5x - 4y = - 2
5 × 2 - 4y = -2
10 - 4y = -2
-4y = - 2 - 10
-4y = - 12
Divide both sides by ( -4 )
y = 3
Therefore,( x , y ) ⇒ ( 2 , 3 )the answer to this number problem is 78787878 x 55555855=4.37712793E15
how I did it in my head
I that good but
but i am not good a English
Find the value of x.
Answer:
x ≈ 28°
Step-by-step explanation:
We know the hypotenuse (the longest side) and the opposite (the side opposite x) so we can use SOH:
sine x = opposite ÷ hypotenuse
Substitute in the values:
sin x = 7 ÷ 15
sin x = 0.4666...
Now we can do the inverse of sine to find x:
x = [tex]sin^{-1}[/tex](0.466..)
x = 27.818138... ≈ 28°
Hope this helps!
Hurry please!
What is the slope of a line parallel to the line whose equation is
5x – 3y = 18.
Fully simplify your answer.
Answer:
5/3, or 1.(6)
Step-by-step explanation:
find slope-intercept form
5x-3y=18
5x=3y+18
3y=5x-18
y=5/3x-6
slope is 5/3, or 1.(6)
The slope is 5/3 or 1.6.
What is a slope?It is the measure of the steepness of a line.
Given that
5x-3y = 18
Rearrange the equation
i.e. 5x-18 = 3y
y = (5/3)x - 6
The general form of the slope-intercept equation is
y = mx+c
By comparing the two equation, we get slope as
Slope of the line,m = 5/3 = 1.6
Hence, the slope of the given line is 1.6.
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