Answer:
D) 5 and 7
Step-by-step explanation:
To find mode, put the numbers and order and see which number repeats the most
4, 5, 5, 6, 7, 7, 8, 12
5 and 7 are the two numbers that repeats the most so the answe is:
D) 5 and 7
Answer:
c.
Step-by-step explanation:
A survey is targeted at 12-year-old children. Whoch question are appropriate for the population? Select two options. 38 points. A. What year did you graduate from high school. B. What color was your first car. C. Where is your favorite vacation spot. D. What is the last book you read. E. Should taxes be increased to fund a new park?
Answer:
C & D
Step-by-step explanation:
please send pic of these i can give answer i think answer is b andc
You purchase a car for $20,000. It depreciates 30% each year. Which formula calculates how much your car will be worth in 10 years?
Answer:6722.8(sorry if i'm wrong)
Step-by-step explanation:
OMG PLEASE HELP PLEASE OMG HELP ME HELP PLZ!!!!!!!!!! HELPPPPPPPPPPPPp
17.5 mark brainlist plssssssssssssss
Please answer ASAP this is due tomorrow
Answer:
227.08in^2
You want to find the surface area for this problem. SA=2lw+2lh+2hw
Step-by-step explanation:
L=2.5
W=7.4
H=9.6
SA=2lw+2lh+2hw
SA=2(2.5x7.4)+2(2.5x9.6)+2(9.6x7.4)
SA=37+142.08+48
SA=227.08in^2
An inspector inspects large truckloads of potatoes to determine the proportion p in the shipment with major defects prior to using the potatoes to make potato chips. Unless there is clear evidence that p is less than 0.10, he will reject the shipment. He selects an SRS of 200 potatoes from the truck. Suppose that 12 of the potatoes are found to have major defects. Do the hypotheses test:
H0:p=0.10, H0:p<0.10 and help him to make a decision
a. Calculate the sample proportion p.
b. Calculate the test statistic.
c. Find the p-value.
d. Given α=0.05 what is your conclusion? Should he reject the shipment?
Answer:
a) The sample proportion is 0.06.
b) The test statistic is z = -1.89.
c) 0.0294
d) 0.294 < 0.05, which means that there is enough evidence that p is less than 0.1, which means that we reject the null hypothesis, and accept the shipment.
Step-by-step explanation:
The null hypothesis is:
[tex]H_{0} = 0.1[/tex]
The alternate hypotesis is:
[tex]H_{1} < 0.1[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
a. Calculate the sample proportion p.
200 potatoes, 12 defective.
This means that [tex]p = \frac{12}{200} = 0.06[/tex]
The sample proportion is 0.06.
b. Calculate the test statistic.
For a proportion p, we have that:
[tex]\sigma = \sqrt{p(1-p)}[/tex]
In this question, since [tex]\mu = 0.1[/tex]
[tex]\sigma = \sqrt{0.1}{0.9}[/tex]
SRS of 200 means that [tex]n = 200[/tex]
[tex]H{0} = 0.1[/tex] means that [tex]\mu = 0.1[/tex]. So
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.06 - 0.1}{\frac{\sqrt{0.1*0.9}}{\sqrt{200}}}[/tex]
[tex]z = -1.89[/tex]
The test statistic is z = -1.89.
c. Find the p-value.
Looking at the z-table, [tex]z = -1.89[/tex] has a pvalue of 0.0294, which is the pvalue of this hypothesis test.
d. Given α=0.05 what is your conclusion? Should he reject the shipment?
0.294 < 0.05, which means that there is enough evidence that p is less than 0.1, which means that we reject the null hypothesis, and accept the shipment.
Find the volume of this triangular pyramid
Answer:
63,616 ft³
Step-by-step explanation:
Volume of triangular pyramid = ⅓(base area * height of pyramid)
Base area = ½*b*h
b = 71 ft
h = 84 ft
Base area = ½*71*84 = 2,982 ft²
Height of pyramid = 64 ft
Plug in the values
Volume of triangular pyramid = ⅓(2,982*64)
= 63,616 ft³
On a later day, he asked the same group of 10 friends to throw a ball again and collected another set of data. The median of the second data set is 49 feet, and the IQR is 6 feet.
a. Did the 10 friends, as a group, perform better (or throw farther) in the second round compared to the first round?
(Worse or better)
b. Were the distances in the second data set more variable or less variable compared to those in the first round?
(More variable or less variable)
Answer:
a
Step-by-step explanation:
Which of the following choices lists the values of the side longths of a triangle with 45-45-90 degree angles and a hypotonuso - 247? Need help
Answer:
D 12rad2 12rad2 24
Step-by-step explanation:
A park has a triangular sandbox. Todd wants to create a smaller sandbox at his backyard having the same angles as the park sandbox.
What is the perimeter in feet of Todd’s sandbox?
What is the slope of the graph shown?
how to solve 46 divide by 6 and change it to a multiplication equation
Answer:
46/6 is approximately 7.667.
To change it to a multiplication problem, I can do 46 = 6*7.667. The answer is not exact, just an estimated approximation.
You can also try to divide yourself.
9. square
A =
s= 15 ft
Answer:
225 square feet
Step-by-step explanation:
If one side = 15 ft, and it's a square, you do 15 x 15 = 225 square feet
Hope that helps!
I need help on the griding for (1/2,2). Please explain. :(
Which of the following trigonometric ratios are correct?
9514 1404 393
Answer:
D, F
Step-by-step explanation:
The mnemonic SOH CAH TOA can help you with this. It reminds you ...
Sin = Opposite/Hypotenus
sin(40°) = x/b . . . . matches D
Cos = Adjacent/Hypotenuse
cos(40°) = a/b . . . . no match
Tan = Opposite/Adjacent
tan(40°) = x/a . . . . matches F
The question that is asked
Answer:
THE ANSWER IS B BECAUSE I AM BIG BRAIN
Step-by-step explanation:
A plane flies 545 kilometers with a bearing of 316° from Naples to Elgin (see figure). The plane then flies 680 kilometers from Elgin to Canton (Canton is due west of Naples). Find the bearing of the flight from Elgin to Canton. (Round to the nearest whole number.)
Answer:
235°Step-by-step explanation:
Use of low of sinesConsider triangle CENBearing of angle counted from zero to the vector of flightWe have
∠CNE = complementary with 44° ⇒ m∠CNE = 90° - 44° = 46°NE = b = 545 kmEC = a = 680 km∠ECN = xFind the measure of angle x:
sin 46° / a = sin x / bsin 46° / 680 = sin x / 545sin x = 545 sin 46 deg / 680x = arcsin (545 sin 46 deg / 680)x = 35° (rounded)Bearing of the flight from Elgin to Canton is:
270° - 35° = 235° as the vector is in the third quadrantAnswer:
235°
Step-by-step explanation:
Bearing: The angle (in degrees) measured clockwise from north.
The given scenario can be modeled as a triangle.
Given sides of the triangle:
a = 680 kmb = 545 kmAs due north is at a right angle to due west, the angle in the right corner of the triangle is:
⇒ 90° - 44° = 46°
Use the Sine Rule to find angle y marked on the attached diagram (the angle opposite side b).
Sine Rule
[tex]\sf \dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}[/tex]
(where A, B and C are the angles and a, b and c are the sides opposite the angles)
[tex]\implies \sf \dfrac{\sin 46^{\circ}}{680}=\dfrac{\sin y}{545}[/tex]
[tex]\implies \sf \sin y= \dfrac{545\sin 46^{\circ}}{680}[/tex]
[tex]\implies \sf y= \sin^{-1} \left(\dfrac{545\sin 46^{\circ}}{680}\right)[/tex]
[tex]\implies \sf y=35.20682806...^{\circ}[/tex]
Interior angles of a triangle sum to 180°
⇒ x° + y° + 46° = 180°
⇒ x° + 35.2068...° + 46° = 180°
⇒ x° = 98.79317194...°
Consecutive Interior Angles Theorem
When a straight line intersects two parallel straight lines, the consecutive interior angles formed sum to 180°. Therefore the angle between due north and side a of the triangle is:
⇒ 180° - 44° = 136°
To find the bearing of the flight from Elgin to Canton, find the angle labelled green on the attached diagram:
[tex]\implies \sf Bearing =136^{\circ}+ 98.79317194...^{\circ}[/tex]
[tex]\implies \sf Bearing = 234.7931719...^{\circ}[/tex]
[tex]\implies \sf Bearing = 235^{\circ}[/tex]
As bearings are usually given as a three-figure bearings, the bearing of the flight from Elgin to Canton is 235°.
Learn more about bearings here:
https://brainly.com/question/27928951
Which expression is equivalent to -2(9y-3)
a) -18y + 6 c) -18y -3
b) -18y - 6 d) 18y + 6
Answer:
A) - 18y + 6
Step-by-step explanation:
Distribute -2 to all terms within the parenthesis.
Note that:
When you multiply/divide:
Two positive terms, the result will be positive.
One negative and one positive term, the result will be negative.
Two negative terms, the result will be negative.
First, multiply -2 with 9y:
-2 * 9y = -18y
Next, multiply -2 with -3:
-2 * -3 = 6
-18y + 6, or A) is your answer.
~
Condense the log equation: 4 log x + log y - 5 log z
Answer:
The condensed log equation is: [tex]\log{\frac{x^4y}{z^5}}[/tex]
Step-by-step explanation:
We use these following logarithm properties to solve this question:
[tex]a\log{x} = \log{x^a}[/tex]
[tex]\log{a} + \log{b} = \log{ab}[/tex]
[tex]\log{a} - \log{b} = \log{\frac{a}{b}}[/tex]
In this question:
[tex]4\log{x} = \log{x^4}[/tex]
[tex]5\log{5} = \log{z^5}[/tex]
So
[tex]4\log{x} + \log{y} - 5\log{z}[/tex]
Becomes:
[tex]\log{x^4} + \log{y} - \log{z^5}[/tex]
Now applying the addition and subtraction properties, we have:
[tex]\log{\frac{x^4y}{z^5}}[/tex]
The condensed log equation is: [tex]\log{\frac{x^4y}{z^5}}[/tex]
I need help ASAP will mark the brainliest
Answer:
hhffuutxu da ruzrxtoxotx suzs txyfyfxkfzfjzrzjrzurzi f2f jfizeyUrYsU
Step-by-step explanation:
that boi sus fo real nfcgxjfxiffxdkhdkydkgzxd lux kygksktskgxkhxyzjrztjztkxlyslyskt
4 1/6 divided by 1 1/8
Answer:
3.7037037037
Step-by-step explanation:
Answer:
5 35/48
Step-by-step explanation:
25/6x11/8=275/48=5 35/48
During science class, groups measure out different volumes of vinegar. The line plot below shows the amount of vinegar used by 12 groups, rounded to the nearest 1/2 ml.
Answer: it should be 22 1/2 :)
An element with
mass 510 grams decays by 26.3% per minute. How much of the
element is remaining after 7 minutes, to the nearest 10th of a gram?
Answer:
60.2 grams is remaining after 7 minutes.
Step-by-step explanation:
Exponential equation for amount of substance:
The exponential equation for the amount of a substance is given by:
[tex]A(t) = A(0)(1-r)^t[/tex]
In which A(0) is the initial amount and r is the decay rate, as a decimal, and t is the time measure.
An element with mass 510 grams decays by 26.3% per minute.
This means that [tex]A(0) = 510, r = 0.263[/tex]
So
[tex]A(t) = A(0)(1-r)^t[/tex]
[tex]A(t) = 510(1-0.263)^t[/tex]
[tex]A(t) = 510(0.737)^t[/tex]
How much of the element is remaining after 7 minutes?
This is A(7). So
[tex]A(7) = 510(0.737)^7 = 60.2[/tex]
60.2 grams is remaining after 7 minutes.
Write an exponential function in the form y=ab^xy=ab
x
that goes through points (0, 18)(0,18) and (2, 1152)(2,1152).
Answer:
Step-by-step explanation:
let y=ab^x
x=0,y=18
18=ab^0=a
a=18
y=18b^x
when x=2,y=1152
[tex]1152=18b^{2}\\b^{2}=\frac{1152}{18}=64=8^2\\b=8\\so~y=18(8)^x[/tex]
pls someone anwser quick
A school was attempting to determine the proportion of students who have access to the internet in their homes. Demographic data suggests that 85% of students will have access to the internet at home, but this school believes the proportion at their school may be lower. A simple random sample of 120 students is selected, and of those 120, 95 students report having access to the internet at home. If a hypothesis test were to be performed, what would be the correct test statistic and P-value
Answer:
Z = -1.789
P value = 0.036807
Step-by-step explanation:
Here
H0: p = 0.85 students will have access to the internet at home
Ha: p < 0.85 students will have access to the internet at home
As per the given data, out of 120 sampled students, 95 have access to internet at home
This is 79.17 % of the total number of sampled students.
The Z values is given by
[tex]Z = \frac{p-p'}{\sqrt{\frac{p(1-p)}{n} } }[/tex]
Substituting the given values, we get -
[tex]Z = \frac{0.7917-0.85}{\sqrt{\frac{0.85(1-0.85)}{120} } }\\Z = -1.789[/tex]
The sample proportion of 0.7917 is about -1.789 standard errors below the population proportion given in the null hypothesis.
Considering, result is significant at p < .05, the P-Value is .036807.
I don't understand this, please help
Answer:
∠2 = 150°, it is a supplementary angle to 30°
∠3 = 30°, it is an alternate angle to 30°
∠4 = 150°, it is a supplementary angle to 30°
∠5 = 30°, it is an alternate angle to 30°
∠6 = 150°, it is a supplementary angle to 30°
∠7 = 30°, it is an alternate angle to 30°
∠8 = 150°, it is a supplementary angle to 30°
3.1 Simplify the following ratios:
3.1.1 500g: 3 kg
- 15
Answer:
1g:6g-15
Step-by-step explanation:
Quadrilateral KLMN is dilated by a scale factor of 2/3 to form quadrilateral K'L'M'N'. What is the measure of side NK?
Answer:
NK = 42
Step-by-step explanation:
Scale factor of dilating KLMN to form K'L'M'N' = ⅔. This fraction implies there was a reduction of the original shape to form the new image/shape.
NK corresponds to N'K'
N'K' = 28
To get the NK, divide 28 by the scale factor.
28 ÷ ⅔ = 28*³/2 = 42
NK = 42
<5 is a complement of <6 and m<5 = 59 degrees. Find m<6.
A pair of complementary angles, when added, equal 90. So if <5 is 59 degrees, what do you do to find <6? You subtract 59 with 90.
90-59=31
So <6 is 31 degrees.
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hope it helps
What is 3000 times 0.22
Answer:
66
Step-by-step explanation: