A building has an entry the shape of a parabolic arch 22 ft high and 28 ft wide at the base, as shown below.
A parabola opening down with vertex at the origin is graphed on the coordinate plane. The height of the parabola from top to bottom is twenty two feet and its width from left to right is twenty eight feet.
HELP PLS I SUCK AT MATH IF U HELPED U SAVED MY LIFE THANK YOU
The distance around a triangle is 34 centimeters. If two sides are equal and the length of the third side is 6 centimeters, what is the length of each of the other two sides?
Subtract 6 from the total then divide by 2.
34-6 = 28
28/2 = 14
The length of the other two sides are 14 cm each
3. What value of makes a true equivalent fraction statement.
5 30
54
C
Answer:
[tex]x[/tex] = 9
Step-by-step explanation:
We need to find [tex]x[/tex] which will make an equivalent fraction statement.
[tex]\frac{5}{x} = \frac{30}{54}[/tex]
5 x 6 = 30
[tex]x[/tex] x 6 = 54 (to find [tex]x[/tex] we should do 54 ÷ 6 which = 9)
So:
[tex]\frac{5}{6} = \frac{30}{54}[/tex]
[tex]x[/tex] = 9
hope this helps :)
find the area of the composite figure
Answer:
6808 yds
Step-by-step explanation:
First find the area in black in total
190 x 48 = 9120
then find the area of the two squares
34 x 34 = 1156
1156 x 2 = the two square combined = 2312
subtract the total area in black with the area of the combined squares
9120 - 2312 = 6808
Hoped this helped.
If there is an 80% chance of rain for 10 days, how many days should it rain?
Answer:
10 shouldn't it be 10 days
Step-by-step explanation:
hope it helps
Write 3/4 as a sum of fractions in two different ways none of your fractions should be equal to 0
Answer:
1/4 plus 1/2, and 3/8 plus 3/8
A chi-square test of independence was conducted to investigate whether there is an association between the location where a person lives in a city (north, south, east, or west) and who the person planned to vote for in the upcoming mayoral election (the incumbent or the challenger). A random sample of 100 potential voters was selected, and the hypothesis test had a chi-square test statistic of χ2=9.84 with a p-value of 0.02. Which of the following statements is the correct interpretation of the p-value in context?
(A) There is a 2 percent chance that where a person lives and who that person plans to vote for are independent.
(B) There is a 2 percent chance that where a person lives and who that person plans to vote for are dependent.
(C) There is a 2 percent chance of making a Type II error.
(D) Assuming that the location of where a person lives and who that person plans to vote for are dependent, there is a 2 percent chance of finding a test statistic that is 9.84 or greater.
(E) Assuming that the location of where a person lives and who that person plans to vote for are independent, there is a 2 percent chance of finding a test statistic that is 9.84 or greater.
Answer:
E) Assuming that the location of where a person lives and who that person plans to vote for are independent, there is a 2 percent chance of finding a test statistic that is 9.84 or greater.
Step-by-step explanation:
Chegg
pleaseeeeeeee helppppppp
Answer:
138°
Step-by-step explanation:
69X2=138
Round off 23809 to nearest hundred
Answer:
24000
Step-by-step explanation:
23809=24000
What figure is formed by a locus of points
on a plane that are equidistant from a fixed
point?
Please help, I don't understand anything about this question so I need a step-by-step answer so I am able to understand.
Answer:
First box, 0.8 - Green
Second Box - 0.4 - not green
Last box ( Bottom) - 0.7 - not green
b) 0.8
c) 0.3
d) 0.8 X 0.6 = ?? ( use calc)
e) (0.8 X 0.4 ) + (0.2 x 0.7) = Ans
Step-by-step explanation:
Just know probability will always add up to 1 no mater what!!!
In a sewage treatment plant, a large concrete tank initially contains 440,000 liters of liquid and 10,000 kg of fine suspended solids. To flush this material out of the tank, water is pumped into the vessel at a rate of 40,000 l/h. Liquid containing solids leaves at the same rate. Estimate the concentration of suspended solids in the tank at the end of 4 h. You can assume that the initial concentration of solids in the tank
Answer:
[tex]Concentration = 8.26kg/m^3[/tex]
Step-by-step explanation:
Given
[tex]V = 440000L[/tex] --- volume of tank
[tex]m = 10,000 kg[/tex] --- solid mass
[tex]r = 40000L/hr[/tex] --- outflow rate
Required
Determine the concentration at the end of 4 hours
First, calculate the amount of liquid that has been replaced at the end of the 4 hours.
[tex]Amount = r * Time[/tex]
[tex]Amount = 40000L/hr * 4hr[/tex]
[tex]Amount = 40000L * 4[/tex]
[tex]Amount = 160000L[/tex]
This implies that, over the 4 hours; The tank has 160000 liters of liquid out of 440000 liters were replaced
Calculate the ratio of the liquid replaced.
[tex]Ratio = \frac{Amount}{Volume}[/tex]
[tex]Ratio = \frac{160000L}{440000L}[/tex]
[tex]Ratio = \frac{16}{44}[/tex]
[tex]Ratio = \frac{4}{11}[/tex]
Next, calculate the amount of solid left.
[tex]Amount (Solid)= Ratio * m[/tex]
[tex]Amount (Solid)= \frac{4}{11} * 10000kg[/tex]
[tex]Amount (Solid)= \frac{40000}{11}kg[/tex]
[tex]Amount (Solid)= 3636kg[/tex]
Lastly, the concentration is calculated as:
[tex]Concentration = \frac{Amount (Solid)}{Volume}[/tex]
[tex]Concentration = \frac{3636kg}{440000L}[/tex]
Convert L to cubic meters
[tex]Concentration = \frac{3636kg}{440000* 0.001m^3}[/tex]
[tex]Concentration = \frac{3636kg}{440m^3}[/tex]
[tex]Concentration = 8.26kg/m^3[/tex]
1. The width of a rectangle is 6 feet and the diagonal length of the rectangle is 19 feet. Which
measurement is closest to the length of this rectangle in feet?
There are 900 students at a school. You receive two thirds of he votes for best student ever! About how many
votes would you expect to receive?
Answer:
~600 votes
Step-by-step explanation:
Notice how 900 is a multiple of 3. Multiplying by 2/3 is the same as saying as divide the total by 3, then multiply that result by 2. Thusly, 900/3=300 and 300*2=600. Therefore, you should expect around 600 votes.
If I helped, a brainliest would be greatly appreciated!
1Alfred departs from NAMPO Park
at 18:45 and travels to Sasolburg at
an average speed of 88 km/h. He
calls his wife to inform her that he
will arrive in Sasolburg at 8 pm.
Verify, with calculations, whether his
estimate is correct.
You may use the formula:
Distance= Speed x time
Answer:
Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.
Step-by-step explanation:
Since Alfred departs from NAMPO Park at 18:45 and travels to Sasolburg at an average speed of 88 km / h, and he calls his wife to inform her that he will arrive in Sasolburg at 8 pm, to determine if his estimate is correct the following calculations must be performed:
The shortest route from Nampo Park to Sasolburg in South Africa is 139 km via Route 59.
8 PM = 20:00
20:00 - 18:45 = 1:15
139/88 = 1.57
60 x 0.57 = 34.74
Thus, Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.
A= B= b= what’s the answer i been trying to solve all day
Answer:
Step-by-step explanation:
We are given the triangle ABC and told to find ∠A, ∠B, and side b. Also we are told that side c= 54 . side a=64 and ∠C = 32°
we need law of sines a / sin A = b / sin B = c / sin C
let's use law of sines to find the other angles
64 / sin A = 54 / sin(32)
I'm just going to swap the fractions on both sides , just to make it easier
sin A / 64 = sin(32) / 54
∠A = arcSin(64 * sin(32) / 54)
∠A = 38.9066°
∠B + ∠A + ∠C = 180
∠B = 180 - 32 - 38.9066
∠B = 109.0934°
let's find side b now
sin B / b = sin(32) / 54
sin(109.0934°) / b = sin(32) / 54
54 * sin(109.0934°) / sin(32) = b
96.2963 = b
A farmer is planting vegetables on his field. The farmer has planted 24 seeds so far, which is 40% of it's capacity. What is the maximum number of seeds the farmer is able to plant on his field?
Answer: the answer is 104
Step-by-step explanation:
Answer:
104
Step-by-step explanation:
Jordan needs 5 pounds of chips for a party. The bags he is buying are 24 oz each. According to the number line, how many bags will he need to buy to have at least 5 pounds?
Answer:
3.33 but he cant buy 3 and 1/3 of a bag of chips so 4
Step-by-step explanation:
Your family is driving to the beach. You travel 200 kilometers in the first two hours. During the next hour, you stop for lunch and only travel 25 kilometers. What was tour average speed?
A) 60 km/h
B)75 km/h
C)100km/h
D)225 km/h
Answer: B) 75 km/h (from this answer my brother told and he good at math so I hope this is Correct.)
Find the surface area of the figure
Answer:
122.30 cm²
Step-by-step explanation:
The figure is a triangular prism.
Formula for calculating surface area of a triangular prism = bh + L(S1 + S2 + S3)
Where,
b = 11 cm
h = 4.3 cm
S1 = 8 cm
S2 = 6 cm
S3 = 11 cm
L = 3 cm
Surface area = 11*4.3 + 3(8 + 6 + 11)
= 47.3 + 3(25)
= 122.3 cm²
I HAVE ALGEBRA 2 QUESTIONS ON MY PAGE 50 POINTS EACH PLEASE SOMEONE HELP !!
Answer:
Where is the paper?
Step-by-step explanation:
Pete is packing toys into boxes. Each box holds 30 toys. There are 94 toys and 3 boxes. How many extra toys are there?
Answer:
There are 4 extra toys.
Step-by-step explanation:
Hey there!
We're given the following information:
There are 94 total toys.There are 3 boxes.Each box will hold 30 toys.Therefore, we can realize that this will be a division problem since something is being put into another item:
Lone toys → toys in boxesWe have 3 boxes that will fit 30 toys each, so let's find out how many toys are accounted for with these boxes.
[tex]30 \times 3 = 90 \ \text{toys}[/tex]Now, we can just subtract the total number of toys from the accounted amount of toys.
[tex]\text{94 total toys - 90 accounted toys = 4 remaining toys}[/tex]Therefore, we know that remaining is a synonym of extra, so there are a total of four toys that are left over.
Answer:
4
Step-by-step explanation:
90/30 = 3 boxes
94-90 = 4 extra boxes
Mr. Wilcox would really like his laptimes to be consistently between 1.75 and 1.85 minutes.
What proportion of his laps were in this range?
Answer:
Use normalcdf ( 1.75, 1.85, 1.84, 0.07 )
Doc and Marty should have laptimes between 1.75 and 1.85 approximately 45.75% of the time.
Step-by-step explanation:
Write an equation in slope-intercept form for the line shown.
Answer:
this is the answer
Step-by-step explanation:
hope it helped!!!
Nevaeh is a cruise specialist and earned $486 commission after booking a cruise that cost $5,400. What is her rate (in %) of commission?
Help! ITS IMPORTANT FOR ME PLEASE!!
Answer:
x= 69 - 55
×=14
I think this helpful for you
Answer:
x = 124 degree
Step-by-step explanation:
Sum of all interior angles of triangle = 180
69+55= 124
Therfore third angle, 180-124= 56
Linear pair= 180
180-56= 124 degree
therefore x= 124 degree
Mark as brainliest
Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s= 6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 31.9 hg < μ < 34.5 hg with only 19 sample values, x_=33.2 hg, and s=2.6hg? What is the confidence interval for the population mean μ?
Answer:
a) ( 31.92 < μ < 33.88 )
The confidence interval is not very different from the confidence interval given in the question
b) ( 31.74 , 34.66 )
Step-by-step explanation:
n = 250
x ( mean ) = 32.9
std = 6.9
95% confidence interval
df = n - 1 = 250 - 1 = 249
a) construct confidence interval estimate
calculate for the margin of error
= [tex]t_{0.05/2} ,_{250-1} ( \frac{s}{\sqrt{n} } )[/tex] ( using excel function: T.INV.2T(0.025,249) )
= 2.255 ( 6.9 / 15.81 )
= 0.98
Hence the confidence interval for the population
= ( x - 0.98 < μ < x + 0.98 )
= ( 31.92 < μ < 33.88 )
The confidence interval is not very different from the confidence interval given in the question
b) when n = 19
x = 33.2 and std = 2.6
margin of error = [tex]t_{0.05/2} ,_{19-1} ( \frac{s}{\sqrt{n} } )[/tex] = 2.45 * ( 2.6 / 4.36 ) = 1.46
confidence interval
= ( 33.2 - 1.46 , 33.2 + 1.46 )
= ( 31.74 , 34.66 )
Jeremiah's new running sneakers cost $95. Their
state also has a 6.35% sales tax. How much will
Jeremiah have to pay for the sneakers, including
sales tax?
Answer:
$101.03
Step-by-step explanation:
two ways to solve:
95 x 1.0635=101.03
or
95 x .0635=6.03 sales tax paid
sales price 95 + sales tax 6.03 = total paid $101.03
The homecoming dance committee plans to conduct a survey to determine
the student body's opinion on a theme for the dance. Which sampling method
would be most likely to result in nonresponse bias?
A. Handing a survey to all the students who attended the previous
year's homecoming dance
B. Entering a second-period math class and surveying all the
students in that class
C. Standing at the school entrance and surveying every 5th student
that walks in
D. Emailing a survey to all students, but only freshman girls respond
Answer: It's D
Step-by-step explanation:
Answer:
Step-by-step explanation:
Entering a second-period math class and surveying all the students in that class
