someone please help me answer this!!
Answer:
17.9 units is the answer
Step-by-step explanation:
points are (-7,-2) and (9,6)
Pythagorean theorem can be written as,
[tex]d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{9-(-7))^2 + (6-(-2))^2}\\\\d=\sqrt{(16)^2+(8)^2} \\\\d=\sqrt{256+64} \\\\d=\sqrt{320} \\\\d=17.88[/tex]
Rounding off,
d = 17.9 units
I need help, pls help me?
Answer:
1 and 100
Step-by-step explanation:
Those are the chances of events
Today 108 people visited a water park during the first hour that the park was open. This number of people is 40% of the number of people who visited the water park during the first hour yesterday. How many people visited the water park during the first hour yesterday?
Answer:
40
___ x 108 = 43.2
100
A gelato shop tries to give consistent scoop sizes, but some flavors of gelato are denser than others. Here's the
historical data for the mass per scoop of two flavors:
Flavor
Shape
Mean (g)
Standard deviation (g)
Hazelnut
Normal
83
9.3
Dulce de leche
Normal
67.5
7.8
Suppose they weigh a sample of 20 randomly selected scoops of hazelnut gelato and 15 scoops of dulce de
leche gelato. They will then look at the difference in their sample means (Tu – īp).
What do we know about the shape of the sampling distribution of CH
TD, and why?
Answer:
It's exactly normal, because both populations are normally distributed.
Step-by-step explanation:
Khan Academy
There are 2 girls for every 3 boys in Mrs. Sanchez' class. If there are 12 boys in the class, how many girls are there?
8 girls are there in Mrs. Sanchez' class.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Based on the given conditions, formulate
2 girls ⇒ 3 boys
X girls ⇒ 12 boys
3X = 12 × 2
⇒ 3X = 24
⇒ X = [tex]\frac{24}{3}[/tex]
⇒ X = 8
Hence, 8 girls are there in Mrs. Sanchez' class.
Find out more information about unitary method here
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A university council wants to determine the need for a new staff room. The council conducted a survey of the staff by randomly speaking to 860 staff members out of 2,844 staff members. The council found that 70% of those surveyed were in favor of building a new staff room. Assuming a 90% confidence level, which statement holds true?
As the sample size is appropriately large, the margin of error is 0.036.
As the sample size is appropriately large, the margin of error is 0.026.
As the sample size is too small, the margin of error is 0.026.
As the sample size is too small, the margin of error cannot be trusted.
To find a margin of error for a sample proportion, these assumptions must be met, where n is the sample size and is the sample proportion.
First rewrite the proportion of positive responses as a decimal number.
Now substitute the sample proportion and the sample size, 860, into the formulas for the assumptions to determine whether they are met.
Both values are greater than 10, so the assumptions are met, and the margin of error can be calculated.
Find the margin of error using this formula, where z is the critical value.
For a 90% confidence level, . Substitute the values of z, n, and into the formula for margin of error and evaluate.
Answer:
As the sample size is appropriately large, the margin of error is 0.026
Step-by-step explanation:
Allie is 26 years old. This is half of her
brother Alex's age, plus 5 years.
How old is Alex?
Answer:
18
Step-by-step explanation:
Can someone help me please?
Answer:
5 1/6
Step-by-step explanation:
Pleasee i need helppp Pleasse anyone
Answer:
B is not correct. rational numbers can be negative
The probability distribution for a
random variable x is given in the table.
-5
-3
-2
0
2
3
Probability
.17
.13
.33
.16
.11
.10
Find the probability that -2
I WILL MARK YOU AS THE BRAINLIEST IF YOU ARE CORRECT! Below is how tall (in meters) each of the five players on Deandra's basketball team is.
Find the median height.
Ryan surveyed parents. He found 3 out of every 5 parents vote. 450 parents eligible. How many parents will vote in the election?
NEED HELP ASAP Which side lengths form a right triangle?
Answer:
the answers is B, 3,4,5
Step-by-step explanation:
The dot plots show the numbers of adult books purchased by customers at two different bookstores on one day
Which statement is supported by the dot plots?
Pls explain!!!
Answer:
H mean of data for store 1 is greater than mean for store 2
Step-by-step explanation:
mode for store 1 = 3
mode for store 2 = 2
range for store 1 = 6
range for store 2 = 6
mean for store 1 = 3.3125
mean for store 2 = 2.588
median for store 1 = 3
median for store 2 = 2
calcular el 20% de 50
Answer:
10
Step-by-step explanation:
I need help...WILL GIVE BRAINLIEST!!!!!!
Answer:
Step-by-step explanation:
1. 30 degrees (vertical angles)
2. 60 degrees (complementary angles)
3. 150 degrees (supplementary angles and vertical angles)
4. 90 degrees (complementary angles)
Answer:
Step-by-step explanation:
I need help with my work ASAP
Answer:
Step-by-step explanation:
The area for the sector of a circle is
[tex]A_s=\frac{theta}{360}*\pi r^2[/tex] where theta is the measure of the central angle. We have some given values to fill in:
Area is 64π and the central angle is 90°, so all we have left to find is the radius. Filling into the equation:
[tex]64\pi =\frac{90}{360}*\pi r^2[/tex]
Let's get that solved for r-squared first:
[tex]\frac{360(64\pi )}{90\pi } =r^2[/tex]
Doing all the math on that gives us:
[tex]256=r^2[/tex]
Take the square root of both sides and get that r = ±16. BUT we know that lengths cannot be negative, so we disregard the -16 and say that the radius is 16 inches.
A pair of pants normally cost $47.75 and is on sale of 35% off what is the selling price
Answer:
$31.04
Step-by-step explanation:
Find the value of x in the triangle shown below 9 3
Answer:
x = 9.4868
Step-by-step explanation:
For this problem we can use the Pythagorean Theorem
Pythagorean theorem = [tex]a^2+b^2=c^2[/tex]
IN THIS CASE C = X
A and B are the side and base lengths of a right triangle.
C is the Hypotenuse side.
[tex]9^2+3^2=c^2[/tex]
Solve...
81 + 9 = [tex]c^2[/tex]
90 =[tex]c^2[/tex]
[tex]\sqrt{90}[/tex] = c
c = 9.4868
QUICK WHATS THE ANSWER
Answer:
132
Step-by-step explanation:
4 times 11 times 3 and that should be your answer
ANSWER THIS PLEASE ILL GOVE YOU BRAINLIEST PLEASE SHOW ME HOW TO DO IT:(
Kim kept track of how much cereal she ate for two months and found that she ate 256 ounces of cereal in that time.
How many pounds is that? (16 ounces = 1 pound)
A. 16 pounds
B. 8 pounds
C. 4,096 pounds
D. 32 pounds
Answer:
a 16 pounds
Step-by-step explanation:
256/16=16pounds
A book had length of 5 inches and a width of 8 inches what is the area of the book
3. Julio deposited $3,000 in a savings
account that pays 2.5% interest
compounded annually. What is the total
value of the account after 4 years?
A $3,311.44
C $3,117.18
B $3,300.00
D $3.075.00
I
Find an equation of the line that satisfies the given conditions. Through (1, 2) parallel to the line y = 7x − 7
A bag contains:
.
5 red marbles
6 blue marbles
3 green marbles
4 black marbles
2 yellow marbles
.
.
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction
for the number of times a green or black marble will be drawn?
F. 14
G. 65
H. 7
J. 35
Answer:
i would say the answer is J. 35
Step-by-step explanation:
sowwy if i am wrong but if not can have brainliest
If the sum of a number and one is doubled, the result is four less than the number. Find the number
Answer:
-6
Step-by-step explanation:
Let the number be 'x'
Sum of a number and one = x + 1
Sum of a number and one is doubled = 2*(x +1) = 2*x + 2*1 = 2x + 2
Four less than the number = x - 4
2x + 2 = x - 4
Subtract 'x' from both sides
2x - x + 2 = x - x - 4
x + 2 = -4
No, subtract 2 form both sides
x + 2 -2 = - 4 - 2
x = -6
For each part below, use the figure to fill in the blank.
Answer:
a) m<F = 70
b) AB = 6
Step-by-step explanation:
a)
Since this is an isoceles triangle, the base angles are equal so:
2x + 40 = 180
2x = 140
x = 70
b)
Since all of the angles are equal, this is an equilateral triangle. This also makes all of the sides equal and the same.
I need help! Can you help me pls?
Answer:
The first one
Step-by-step explanation: the ABC triangle has a 25-degree angle and a 90-degree angle as you can see by the marks. The first triangle has a 25-degree angle and a 90-degree angle as you can see by the marks. The second one does have a 90-degree angle but it's a different shape and has no 25-degree angle. The third one has both angles 25 and 90 but if you look close it's a different shape. The last one does not have a 90-degree angle but it does have a 25-degree angle and it's a different shape.
So it would be the first option.
Choose the option that best answers the question. Paracelsus University has two kinds of professors: academic professors and professional professors. At Paracelsus University, 60% of the professors are academic professors, and 70% of the professors are tenured. If 90% of the professors at Paracelsus University are academic professors or tenured or both, then what percent of the professional professors there are tenured
Answer:
75%
Step-by-step explanation:
The computation of the percent of the professional professors there are tenured is shown below;
Given that
academic professors A = 60%
professors tenured P = 70%
professors at Paracelsus University = 90%
Based on the above information
As we know that 90% of the professors could be academic professors or tenured or both
so here we can say that the percent of academic professors is
= 60 + 70 - 90
= 40
Therefore professors tenured will be
= 70 - 40
= 30
Now the percentage of professional professor that is tenured is
= 30 ÷ 40 × 100
= 75%