Answer: 30
Step-by-step explanation:
50x .4 = 20
50-20=30
If the variance of a data set if 6.25 what is the standard deviation
Answer:
Variance= (Standard deviation)^2=
✓6.25=Standard deviation
✓(625/100)= Standard deviation
25/10= Standard deviation
2.5= Standard deviation
Step-by-step explanation:
50 POINTS!!!43
what is 43 7/8% of $2.35?
Round your answer to the nearest cent
Answer:
$1.03
Step-by-step explanation:
7/8 = 0.875
then
43 7/8 = 43.875%
43.875/100 = 0.43875
2.35 * 0,43875 = 1.031
Round to the neares cent:
1.03
Step-by-step explanation:
[tex]43 \frac{7}{8} \% \: of \: 2.35 \\ \frac{351}{8} \% \: of \: 2.35 \\ \frac{351}{8 \times 100} \times 2.35 \\ \frac{824.85}{800} = \boxed{\$1.0310625}[/tex]
$ 1.0310625 is the right answer.The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find an equation for the parabola.
INCLUDE WORK.
Answer:
y=-0.215x^2+35
Step by Step:
Let, [tex]h=0[/tex], [tex]k=35[/tex], [tex]x=8[/tex], [tex]y=21[/tex]
We know that, the general equation of the parabola.
[tex]y-k = a(x-h)^2[/tex]
[tex]\Rightarrow y=a(x-h)^2+k .........(i)[/tex]
Substitute the value of [tex]h, k, x, y[/tex] in equation [tex](i)[/tex] and find the value of [tex]a.[/tex]
[tex]21=a(8-0)^2+35[/tex]
[tex]\Rightarrow 21=a\times 8^2+35[/tex]
[tex]\Rightarrow 21=64a+35[/tex]
[tex]\Rightarrow 64a=21-35[/tex]
[tex]\Rightarrow 64a=-14[/tex]
[tex]\Rightarrow a=\frac{-14}{65}[/tex]
[tex]\Rightarrow a=-0.215[/tex]
Hence, the equation of the parabola is:
[tex]y=-0.215x^2+35[/tex]
Hello? STOP RIGHT THERE.... Please help me with this.
Answer: THE ANSWER IS 2 :)
Step-by-step explanation:
3(q+2) Do distributive property
3q=6 Divide 3q to both side
3q = 3q
q= 2 This is the answer
Find the value of a/b/c if a=1/3, b=1/2, c=1/6
Answer: The answer is 0.1111111111111
Step-by-step explanation:
khloe bought a giant cookie. in one hour, she ate 4/7 of the giant cookie. which is the closest to the to the fraction of the cookie she had left?
Answer:
She has 3/7 of the cookie left.
Step-by-step explanation:
Divide the cookie into 7 parts, then take away 4 of those parts. how many are left? 3 out of the 7. So therefore you answer would be 3/7.
There is a lower limit but no upper limit for a random variable that follows the _____ probability distribution.
a. normal
b. uniform
c. binomial
d. exponential
Answer:
d.exponential is answer
Step-by-step explanation:
I hope it's helpful!
A company that makes hair-care products had 8,000 people try a new shampoo. Of the 8,000 people, 32 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
Answer:
i think it 0.4%
Step-by-step explanation:
solve the inequality
Answer:
m ≥ –6
Step-by-step explanation:
m+5 ≥ –1
subtract 5 from both sides
m ≥ -6
What is the slope of the line below?
Which of the following is 3x²/12x simplified?
3x/12
x/4
x/3
x²/4x
Answer:
I think it is the last one
Step-by-step explanation:
I don't know what i am doing wrong pls hel
Give the name (monomial,
binomial, trinomial etc.) and
degree of the polynomial.
3x – 4
Answer:
degree- 1
name- binomial i think
What is an equation of the line that passes through the point (-6,-8)(−6,−8) and is parallel to the line x-2y=6x−2y=6?
Answer:
To find an equation that is parallel, the slopes must be equal. Find the parallel line using the point-slope formula.
Use the slope
−
1
2
and a given point
(
0
,
0
)
to substitute for
x
1
and
y
1
in the point-slope form
y
−
y
1
=
m
(
x
−
x
1
)
, which is derived from the slope equation
m
=
y
2
−
y
1
x
2
−
x
1
.
Step-by-step explanation:
5.The data in the line plot show how many pages each student read last night. Which is the best measure of variability?
A)interquartile range
B)mean
C)median
D)range
At the local dairy farm, Kareem buys a 32-oz container of yogurt for $2.56. Jonah buys a 6-oz container of yogurt for $0.48. Are the cost, y, in dollars and the amount of yogurt, x, proportional? Explain. Write an equation to represent this relationship.
BRAINLIEST IF ANSWER
the table shows information about the number of tires needed for a number of cars. complete the table. write the rule of the table
I need this ASPA
Answer:SAMEEEEEEEEEEE UHHHHHHHHH
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
kjhvg
.
Step-by-step explanation:
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PLEASE HELP ME QUICKLY I NEED THIS SOON!!!!
Katherine and Alex both work at the burger barn. Katherine earned three times as much on her last paycheck as Alex did on his. If Katherine’s earnings were $351 then how much did Alex earn?
Answer:
Alex earned $117
Step-by-step explanation:
You just have to divide 351 by 3
Hope this helps :)
X=1.56 cm
X=1.44cm
X=2.25cm
X=0.64
Answer:
x= 1.44
Step-by-step explanation:
I divided 1.2 cm by 0.96 to find the factor, which give me 1.25.
So I did 1.8 cm divided by 1.25 which give me the answer above.
Hope that helps.
Mattie Evans drove 200 miles in the same amount of time that it took a turbo propeller plane to travel 800 miles. The speed of the plane was 150 mph faster than the speed of the car. Find the speed of the plane.
Answer:
200mph
Step-by-step explanation:
Speed is expressed using the expression
Speed = Distance/Time
For Mattie
Distance = 200miles
Speed = x
Time taken by mattie = Distance/speed
Time taken by mattie = 200/x ... 1
For the propeller plane:
Distance = 800miles
Speed = x+150 (The speed of the plane was 150 mph faster than the speed of the car)
time taken by the plane = 800/x+150
Since Mattie took the same amount of time that it took a turbo propeller plane to travel, then we will equate both expressions as shown:
200/x = 800/150+x
Cross multiply
800x = 200(150+x)
800x = 30,000 + 200x
800x-200x = 30,000
600x = 30,000
x = 30,000/600
x = 50
Get the speed of the plane
Since the speed of the plane is 150+x
Speed of the plane = 150+50
Speed of the plane = 200mph
A circle is cut in half and removed. What is the approximate area (shaded region) of the remaining portion of the circle in square feet? There is a picture of a circle with a line through the middle showing 12 feet.
12 feet ( A=pie(3.14)r^2)
Options are: A. 60 ft2 B. 120 ft2 C. 225 ft2 D. 450 ft2
Answer:
Step-by-step explanation:
area of a whole circle is pi [tex]r^{2}[/tex]
diameter is 2*r
1/2 * pi * [tex]6^{2}[/tex] will find the area of 1/2 of the circle that has a diameter of 12'
56.54866 '
so approx 60 ft
Is the answer 4? I’m not sure if it’s right
Answer:
yes im pretty sure correct me if im wrong. Good luck!!!!!
Step-by-step explanation:
Help me. I'm really confused!
Answer:
Step-by-step explanation:
Remember, the first point in a bracket like this (6, 1) is the x coordinate. Here, 6 is your x coordinate. So, if we actually had the line (which we don't have right now, it would be lined up with the number 6 on the x axis. And the second point, 1 here, is the y coordinate. Which tells you where this point falls on the y axis. it would be lined up with the number 1 on the y axis. First, let's work on the parts where you are listing the points. it seems to give you the x coordinate 2 on the first one. So on the x axis which is the horizontal line that says Number of Books Sold, go to the number 2. Then y upward with your mouse and the first point that appears with the x coordinate of 2 (it's the 2nd point if you start from the bottom of the line and go up) has the y coordinate of 20 because if you use your mouse to go left on the same gray line that point is on, you will hit 20 on the line that says Total Amount Payed (this is your y axis). Now, on the next point it just gives you the y coordinate, 40. Which means that it should be on the grey line that hits the number 40 on the Total Amount Payed line (your y axis). So if you find that point and go down with your mouse on the gray line right under it, you should hit 4. So that point is (4, 40). 6 is not labeled but it is the gray line after the 5 on the x axis. If you go up 6, you hit the to right corner of the graph and if you trace it to the y-axis, it's not labeled but it should be 60 because if you pay attention, the numbers on the y-axis are going up by 10s. The x coordinate represents The Number of Books Sold because it says that under the x axis. The y coordinate represents the Total Amount Payed (dollars). ordered pairs are like ratios because they are both pairs. Ordered pairs tell you how much to go up, down, forwards, and backwards on a coordinate plane while ratios tell you a proportion. I am including a picture to help you out. I hope this made sense and was helpful!
Trevor is making 2/3 of a recipe for chicken noodle soup. He adds ½ cup of chopped celery. The equation 2/3 c = 1/2 can be used to find the number of cups c of chopped celery in the original recipe. How many cups of chopped celery does the original recipe call for?
Answer:
Cups of chopped celery in original recipe = [tex]\frac{3}{4}\ cups[/tex]
Step-by-step explanation:
Given that:
Trevor is making 2/3 of a recipe
Number of cups of chopped celery used = 1/2 cup
The following equation can be used to find the original number of cups of chopped celery used in recipe.
[tex]\frac{2}{3}c=\frac{1}{2}[/tex]
Multiplying both sides by 3/2
[tex]\frac{3}{2}*\frac{2}{3}c=\frac{1}{2}*\frac{3}{2}\\\\c= \frac{3}{4}\\[/tex]
Hence,
Cups of chopped celery in original recipe = [tex]\frac{3}{4}\ cups[/tex]
Please someone help:)
Answer:
Im lost to lol mark brainlest imagine
What % of 25 is 15. Please help me
Answer:
15 is 60% (percent) of 25.
Step-by-step explanation:
Solve the following equation algebraically: 5x2 = 60
a. x~ +3 46
b. x~3.46
c. x = 12
d. X = +12
Answer:
x = 3.46
Step-by-step explanation:
In this question, you have to solve the equation.
Solve:
5x² = 60
Divide both sides by 5.
x² = 12
In order to eliminate the exponent, you would square root both sides.
√x² = √12
x = √12
√12 = 3.4641..
x = 3.46
Your final answer would be x = 3.46
Write an algebraic expression for each verbal description. a number
!!please help me my assignment is due today at 9!!!
Thirty percent of the green house flowers are added to 25 ferns for the
school garden.
The algebraic expression is 0.3G+25F
What are algebraic expression?An algebraic expression is a sentence with a minimum of two numbers or variables and at least one mathematical operation.
First, we can use G to represent green house flowers and F to represent ferns.
Then thirty percent of the green house flower can be represented by 0.3G.
25 ferns can be written as 25F.
The algebraic expression for the given verbal description is 0.3G+25F.
To learn more about algebraic expressions, use the below link:
https://brainly.com/question/953809
#SPJ5
a group of 31 students is going to visit a museum the total cost of the tickets is 144.15 about how much will each student pay
Answer:
$4.65
Step-by-step explanation:
To figure this out you would divide 144.15 by 31
When you divide it it gives you 4.65 which is how much each student will pay.
one student will have to pay 4.65
you have divided
31/144.15=4.65
helpppppppppppppppppppppppppppppppp
\\\
Answer:
12.5%
Step-by-step explanation:
