Answer:
53092.92 square inches
Step-by-step explanation:
Surface Area of a Sphere = 4πr2
Radius = ½D = 130÷2 = 65
4 × 3.14 × 65² = 53092.92
A pair of shoes have been marked up by 65%. If the original price was $40.00, what is the new price?
Answer:
40 multiplied by 65 is 2600 then we divide by 65 and our answer is 65.so 65 plus 40 is 105.
Step-by-step explanation:
Someone help me with this question
What is the value of y in the triangle ?
Answer:
c
Step-by-step explanation:
hope it helps
solve this problem step by step.
2x^3+17x^2+30x
Plz help me with this two question
Solve 5 tanx=523 for ° SXS 180°.
60°
b. 150°
a.
30°
N
Please select the best answer from the choices provided
Answer:
x = 1
Step-by-step explanation:
523 x = 523 Divide each term in 523 x = 523 by 523 . 523 x 523 = 523 523
Cancel the common factor of 523 .
Tap for more steps... x = 523 523
Divide 523 by 523 . x = 1 May I please have a Brainliest please rate this too and like!
The results of a coin toss are shown.
What is P(heads)?
H T H H H T H T T H H T H T T T H H T H T T H H H H T H T T
A. 8/15. B.7/17. C.1/2. D3/5
Answer:
A is the answer!
Because that's reduced of 16/30
On Thursday, a restaurant serves iced tea to 65 of its 245 customers. What percent of the customer ordered iced tea? Round to the nearest whole percent. *
Find the area of the following
kite:
8 cm
2 cm
2 cm
2 cm
2
A = [?] cm2
Enter
Answer:
Area = 12
Step-by-step explanation:
The perpendicular bisector of the triangle going from upper left to the middle marks the height of the triangle. It's area is found from the standard formula.
Area = b * h / 2
b = 2 + 2 = 4
h = 8
Area = 1/2 * 4 * 8
Area = 1/2 * 32
Area = 16
The smaller triangle is found from all the twos.
b = 2 + 2 same as the larger triangle
h = 2
Area = 1/2 2 * 4
Area = 1/2 8
Area = 4
Total Area = 4 + 16
Total Area = 20
Answer:
Area=20
Step-by-step explanation:
A = 20 cm
James is standing near the base of a cliff. He spots his friend Jeff at the top. The angle of elevation is 23 degrees. If the cliff is 50 ft high. How far from the base of the cliff is James standing?
Answer:
117.79 ft
Step-by-step explanation:
tan23 = 50/x
(x)tan23 = 50
x = 50/tan23
x = 117.79 ft
What is the right answer please
Answer:
a is the answer my aunt told me she is a teacher
solve triangles suing the law of sines
Step-by-step explanation:
In your solving toolbox (along with your pen, paper and calculator) you have these 3 equations:
The angles always add to 180°: A + B + C = 180° ...
Law of Sines (the Sine Rule): When there is an angle opposite a side, this equation comes to the rescue. ...
Law of Cosines (the Cosine Rule):
Jellybeans cost 0.80 per pound Howard buys 4 1/2 pounds of jellybeans for himself and 1 pound for his friend what is the total cost of the jellybeans Howard buys
Answer:
Howard bought a total of 4.5 + 1 = 5.5 pounds of jellybeans.
At 0.80 x 5.5 = $4.40.
the cost of 24 water bottles is $6. Which expression shows how to find the cost of 10 bottles of water? a.) 24/10 × 6
b.) 6/10 × 24
c.) 6/24 × 10
d.) 24/6 × 10
Answer:
d. is ur answer
Step-by-step explanation:
A.right triangle
B.isosceles triangle
C.obtuse triangle
D.scalene triangle
HELP PLSSS THIS IS DUE BY 2:00 AM I NEED IT ASAPPP
Answer:
B. Isosceles triangleStep-by-step explanation:
It is a vertical section and the figure formed from the cross-section is:
Isosceles triangleCorrect choice is B
Due in 20 minutes please help now what’s the answer I will give you brainiest
Answer:
The volleyball team's variability is greater because the range is greater! :)
Answer:
first answer your correct
Step-by-step explanation:
So basically the basketball team and the volleyball team are different because the basketball team has more people on it. The height difference is greater for basketball team.
2. Choose a mapping diagram of the ordered pairs {(3,17), (5,19), (7,19),
(11,23), (13,29)).
Please help
Answer: C
Step-by-step explanation: The hypothesis of the right triangle is shorter than the right.
Belleview High School has 12 chaperones for 198 students on a field trip. Which of the following schools has the same ratio of chaperones to students?
Group of answer choices
Answer:
Jefferson High School
Step-by-step explanation:
so the same ratio would be 12 chaperones to 210 students....12/210 reduces to 2/35
18/300 reduces to 3/50
20/350 reduces to 2/35
8/160 reduces to 1/20
14/260 reduces to 7/130
So the same ratio would be Jefferson High School
Select the correct answer
Answer:
number 3
Step-by-step explanation:
thats my calcue
lord help me pleaseeeee
Answer:
B
Step-by-step explanation:
i just think it is because you would not survey anyone that was not in the science class
Which of the following is a trigonometric identity?
cot 0 + tan 0 = 1
sec2 0 +csc2 0 = 1
tan2 0 = sin2 0 x sec2 0
cos2 = sec2 0 x tank 0
Answer:
it's the first one... I think
Answer:
third one
I'm assuming does 2's are squared symbols.
Step-by-step explanation:
It's the third one because
sin^2 x sec^2 x
sin^2 x (1/cos^2 x) by reciprocal identity
sin^2 x/cos^2 x by multiplicative identity prop
tan^2 x by quotient identity
The first one wouldn't work because plugging in pi/4 gives 1+1=1 which isn't true.
The second one doesn't work because plugging in pi/4 gives 2+2=1 which isn't true.
The last equation doesn't make sense at all. There is no variable on the left and on the right there is an extra variable.
Becky has 4 1/2 cups of ice cream. If each ice cream scoop is 1/2 cup, how many scoops of ice cream can she make?
Simplify your answer.
Answer:
9 scoops
Step-by-step explanation:
(4 1/2)/(1/2) = 9/2 x 2/1 = 18/2 = 9 scoops
Tina owns a house that is worth
$ 125,000, a car that is worth $4,000
and miscellaneous items worth
$3,200. She also has $5,000 in
student loans and $572 in credit card
debt. How much is Tina's net Worth?
Answer:
126,628
Step-by-step explanation:
125,000+4,000+3,200-5,000-572
Net worth is your dollar amount in assets minus liabilities, so debts and loans, in total the net worth is $126,628
Mrs Mills buys 4 packs of treats for her cats, Fluff and tigger
she gives Fluff 1/6 of a pack each day
She gives tigger 1/5 of a pack each day
for how many complete days will the 4 packs of treats last
Answer: 10 days
Step-by-step explanation:
1/6 + 1/5 = 5/30 + 6/30 = 11/30 (total for the day)
4 / (11/30) = 10.90909091 (divide the total amount of packages by the daily total)
So 10 complete days.
(9,-3) and (9,-4) the slope is what
Answer:
Undefined
Step-by-step explanation:
On an
Air Indian flight there are
9 boys, 5 Indian Children, 0
9 men, 7 foreign boys 14 Indian, 6 indian male
and 7 foreign female. What is the
number of people on board the plane.
Answer:
43
Step-by-step explanation:
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simplify 2 x 4x x 2y
Step-by-step explanation:
16xy is your Answer..
hope it helps
Answer:
The answer is 16xy
Step-by-step explanation:
All we have to do is take out the x and the y then multiply.
2 * 4 * 2 = 16
Then we add the x and y back.
= 16xy
So, the answer is 16xy
Hope this helps! :)
The people at the Cloak soft drink company believe that their brand of drink is favored over their competitor's brand, Pempsi, by the majority of people. A quick survey is conducted to test this belief. Forty people are asked whether they prefer Cloak or Pempsi, and 28 people did prefer Cloak. A statistician at Cloak wishes to construct a 95% confidence interval for the proportion of people that prefer Cloak soft drink. Drag the blue marker from above the words 'lower bound' to the lower bound of the confidence interval on the number line provided. Drag the red marker from above the words 'upper bound' to the upper bound of the confidence interval on the number line provided.
Solution :
[tex]$p = \frac{28}{30}$[/tex]
= 0.93
Given :
[tex]$a=0.05$[/tex]
[tex]$z(0.025)=$[/tex] [tex]$1.96$[/tex] (from standard normal table)
So the lower bound is
[tex]$=p+z\times \sqrt{p \times \frac{1-p}{n}}$[/tex]
[tex]$=0.7+0.93\times \sqrt{0.7 \times \frac{1-0.7}{30}}$[/tex]
= 1.63 + 0.083
[tex]$=1.73$[/tex]
Luke is planning to lay two decorative pieces of wood across the 12-inch by 24-inch rectangular glass centerpiece of a cabinet. Each piece will lie on a diagonal of the centerpiece.
Select a number from the drop down menu to correctly complete the statement.
Each piece of wood should have a length of approximately.
Answer:
26.8
I might be late but its never to late to give the right answer
Answer:
yup the answer is 26.8
Step-by-step explanation:
i made a 100 so trust me!
The body temperatures of all mosquitoes in a county have a mean of 57∘F and a standard deviation of 10∘F. What is the probability that in a sample of 25 mosquitoes the mean body temperature is greater than 59∘F, assuming the underlying distribution is normal? Do not write probability in terms of percentage. Round your answer to two decimal places.
Answer:
0.16 probability that in a sample of 25 mosquitoes the mean body temperature is greater than 59∘F, assuming the underlying distribution is normal.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
The body temperatures of all mosquitoes in a county have a mean of 57∘F and a standard deviation of 10∘F.
This means that [tex]\mu = 57, \sigma = 10[/tex]
Sample of 25:
This means that [tex]n = 25, s = \frac{10}{\sqrt{25}} = 2[/tex]
of 25 mosquitoes the mean body temperature is greater than 59∘F, assuming the underlying distribution is normal?
This is 1 subtracted by the pvalue of Z when X = 59. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{59 - 57}{2}[/tex]
[tex]Z = 1[/tex]
[tex]Z = 1[/tex] has a pvalue of 0.84
1 - 0.84 = 0.16
0.16 probability that in a sample of 25 mosquitoes the mean body temperature is greater than 59∘F, assuming the underlying distribution is normal.