32 ÷ 40 × 100 = 80%
that's all
Answer:
80%
Step-by-step explanation:
% required = passing/total points *100%
= 32/40 * 100%
= 4/5 * 100%
= 80%
A recipe includes 2 cups of flour and 2/3 cups of buttermilk. Write the ratio of the amount of flour to the amount of buttermilk as a fraction in simplest form.
A detective is called to the scene of a crime where a dead body has just been found......
Answer is in the photo. I can only upload it to a file hosting service. link below!
tinyurl.com/wpazsebu
work out the angle of x please answer ASAP!!
Given:
The figure of a pentagon.
To find:
The value of the x.
Solution:
We know that, the sum of all interior angles of a pentagon is 540 degrees. So,
[tex](5x-25)+(6x+25)+(6x-3)+(9x)+(7x+15)=540[/tex]
[tex](5x+6x+6x+9x+7x)+(-25+25-3+15)=540[/tex]
[tex]33x+12=540[/tex]
Subtract both sides by 12.
[tex]33x+12-12=540-12[/tex]
[tex]33x=528[/tex]
Divide both sides by 33.
[tex]x=\dfrac{528}{33}[/tex]
[tex]x=16[/tex]
Therefore, the value of the x is 16.
If A = 8, then A + A + A =?
Answer:
24
Step-by-step explanation:
A = 8
A + A + A =
8 + 8 + 8 = 3 * 8
3 * 8 = 24
=24
Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!
-Lil G
ABC = EDF. Determine the value of x.
Answer:
The correct answer here is A. x = 17.
How I found this out:
3x + 3 and 5x - 7 are going to be different solutions in the end.
I did the process of elimination.
First, I subsituted, 17 for x. 3 X 17 + 3 = 54. 5 X 17 - 7 = 78.
I then took 180 - 54 - 48 = 78 and 180 - 78 - 48 = 54, just to make sure they are positive numbers and not negative.
Since they work out, I chose this as my correct answer to your question.
Step-by-step explanation:
Hope this helps! :)
I tried my best so I'm it's wrong.
The area of a circle is 25p ft 2 . What is the circumference of the circle? Explain.
Answer:
Circumference of circle = 31.42 ft.
Step-by-step explanation:
Given the following data;
Area of circle = 25π ft²
To find the circumference of the circle;
First of all, we would determine the value of its radius;
Area of circle =πr²
25π = πr²
r² = 25
Taking the square root of both sides, we have;
r = 5 ft.
Now, to find its circumference;
Circumference of circle = 2πr
Circumference of circle = 2π*5
Circumference of circle = 10π ft.
π = 3.142
10π = 10 * 3.142 = 31.42
Circumference of circle = 31.42 ft.
four hundred twenty is 3/5 of what number
700 is the answer to your problem
A carpenter is putting a skylight in a roof. If the roof measures 10 + 8 by 8 + 6 and the skylight measures + 5 by 3 + 4, what is the area of the remaining roof after the skylight is built?
a. 77^2 + 115 + 68
b. 77^2 + 105 + 28
c. 83^2 + 115 + 68
d. 77^2 − 105 + 28
Answer:
The area is: [tex]77x^2 + 105x + 28[/tex], option b.
Step-by-step explanation:
Rectangular area:
The area of a rectangular space is given bt the multiplication of its measures.
Area of the roof:
Dimensions of 10x + 8 and 8x + 6. So
[tex]A_{r} = (10x+8)(8x+6) = 80x^2 + 60x + 64x + 48 = 80x^2 + 124x + 48[/tex]
Area of the skylight:
Dimensions of x + 5 and 3x + 4. So
[tex]A_{s} = (x+5)(3x+4) = 3x^2+4x+15x+20 = 3x^2 + 19x + 20[/tex]
What is the area of the remaining roof after the skylight is built?
Total subtracted by the skylight, which is a subtraction of a polynomial, in which we subtract the like terms. So
[tex]A_{r} - A_{s} = 80x^2 + 124x + 48 - (3x^2 + 19x + 20) = 80x^2 - 3x^2 + 124x - 19x + 48 - 20 = 77x^2 + 105x + 28[/tex]
The area is: [tex]77x^2 + 105x + 28[/tex], option b.
Military radar and missile detection systems are designed to warn a coutry of an enemy attack. Assume that a particular detection system has a 0.80 probability of detecting a missile attack. If two military radars are insalled in two different areas and they operate independently, the probability that at least one of them detect an enemy attack is
Answer:
0.96 = 96% probability that at least one of them detect an enemy attack.
Step-by-step explanation:
For each radar, there are only two possible outcomes. Either it detects the attack, or it does not. The missiles are operated independently, which means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
Assume that a particular detection system has a 0.80 probability of detecting a missile attack.
This means that [tex]p = 0.8[/tex]
If two military radars are installed in two different areas and they operate independently, the probability that at least one of them detect an enemy attack is
This is [tex]P(X \geq 1)[/tex] when [tex]n = 2[/tex]. So
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{2,0}.(0.8)^{0}.(0.2)^{2} = 0.04[/tex]
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.04 = 0.96[/tex]
0.96 = 96% probability that at least one of them detect an enemy attack.
Simplify the expression:
6(h + 6) + 1
Answer:
This is your answer
Answer:
6h + 37
Step-by-step explanation:
=> 6(h + 6) + 1
=> 6h + 36 + 1
=> 6h + 37...ans
HOPE IT HELPS U!!!!How could we find the diameter of a circle with an area of 78.5 in.^ 2 ?? (3.14 is used for )
Answer:
I think it's A AND C. The diameter is just the radius multiplied by 2 at the end of the day.B is just wrong.
14 b + 9 b – 4 – 12b Help meh pls Xd
Answer:
Simplify the expression.
11 b − 4
Step-by-step explanation:
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{14b + 9b - 4 - 12b}\\\\\large\text{COMBINE the LIKE TERMS}\\\\\large\text{(14b + 9b - 12b) + (-4)}\\\\\large\text{(14b + 9b - 12b) = 23b - 12b = \bf{11b}}\\\\\large\text{-4 = \bf{-4}}\\\\\large\text{\bf{= 11b - 4}}\\\\\\\boxed{\boxed{\large\text{Answer: \bf{11b - 4}}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
In the figure below, n II g. Find the values of y and x.
Answer:
(4x-15)=77...corresponding angles
4x =77+15
4x =92
x =23
y =180-77
=103
An occupational safety officer for a large company is conducting a study to investigate back problems in office workers who use a computer for most of the workday. The study will investigate the difference in back problems for workers who stand and workers who sit. A group of 68 volunteers have agreed to participate in the nine-month study. Half the group is randomly assigned to work while standing, and the other half is assigned to work while sitting. At the end of the study, the mean number of back problems between the two groups will be calculated. The officer will use the results to estimate the difference in the mean number of back problems between those who work while standing and those who work while sitting.
Which of the following is an appropriate inference procedure for the study?
a. A one-sample t-interval for a population mean.
b. A one-sample t-interval for a sample mean.
с. A matched pairs t-interval for a mean difference.
d. A two-sample t-interval for a difference between sample means
Answer:
с. A matched pairs t-interval for a mean difference.
Step-by-step explanation:
With the sample, we will have possession of the sample mean and of the sample standard deviation, which means that the t-distribution will be used.
We want to find the mean number of back problems for each sample, and estimate the difference. Since the groups are similar, with only the positions in which they work being different, we have matched pairs. So the correct answer is given by option c.
Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all possible sums from the 36 possible combinations when rolling two number cubes. How many times should Tamara expect the sum of the two cubes be equal to if she rolls the two number cubes times?
Four friends all give each other presents.
The total cost of the presents is £80.52
Work out the mean cost of a present in pounds (£).
Answer:
20.13
Step-by-step explanation:
Four friends all give each other presents. The total cost of the presents is £80.52.
We need to find the mean cost of a present in pounds.
Mean = sum of observations/total no of observation
[tex]M=\dfrac{80.52}{4}\\\\=20.13[/tex]
So, the mean cost of a present is equal to 20.13 .
Look at the sections between the whole numbers on the number line below. How many equal parts are in each section? What fraction does each part show? Each mark on the number line represents a fraction. What denominator will all the fractions have? Write the missing labels on the number line.
Before you make an offer on a home, you should first make sure your mortgage loan application has received a
Preapproval.
A mortgage loan is a loan in which registered property, such as real estate, serves as collateral. If a person borrows money for the purchase of a house, and gives the house as collateral, he is the owner of the property, borrower and mortgagor. The lender, usually a financial institution, is the mortgagee (he acquires the right of mortgage: first right of sale).
When receiving an application for a mortgage loan, the bank performs a series of evaluations of the economy and finances of who applies the loan. Thus, if the bank considers that the individual meets the requirements, it pre-approves the credit, subjecting its final approval to the conditions of the property to be acquired.
Learn more about mortgages in https://brainly.com/question/1318711
What is the answer to, 3 divided by 1/4 ? I'm struggling in math and I am trying my best.
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
sorry if this is worng
How do the 2s in 12.5 and 0.912 compare?
Answer:The 2 in 12.5 is after the decimal making it in the tens place and in 0.912 the thousandths place.
Step-by-step explanation:
How is this problem solved
Tara is selling a car that costs $12,000. She will make a commission of 10%. What will her
commission be?
Answer:
$1200
Step-by-step explanation:
Can someone please help me?
Answer:
part a =x=a x p
Step-by-step explanation:
The results of the test will be sent to the doctor in 72 hours
how many days will the results be sent to the doctor?
Answer:
The answer is D) 3 days
Step-by-step explanation:
24×3=72
maths please help i only have 50 minutes and i have no clue
Step-by-step explanation:
the answer is in the attachment
What's up!
I am here with a handful of geometry questions today. Please answer the question based off the image(s) below.
If you are not sure of the answer please leave a comment, DO NOT ANSWER THE QUESTION UNLESS YOU KNOW THE ANSWER. Please don't take me points! Thanks for understanding.
Anyways, please show all of your work and explain your thinking! Thanks!
9514 1404 393
Answer:
(x -2)² +(y -2)² = 16
Step-by-step explanation:
The equation of a circle with center (h, k) and radius r is ...
(x -h)² +(y -k)² = r²
Your circle has center (h, k) = (2, 2) and radius r=4. Then r² = 16, so the equation is ...
(x -2)² +(y -2)² = 16
In rhombus MATH, the coordinates of the endpoints of the diagonal MT are M(8,2)
and T(0,6). Write an equation of the line that contains diagonal AH
Answer:
y=-1/2x+6
Step-by-step explanation:
1. Midpoint formula
[tex](\frac{x1+x2}{2},\frac{y1+y2}{2})[/tex]
[tex](\frac{8+0}{2},\frac{2+6}{2})=(4,4)[/tex]
2. Slope
[tex]\frac{y2-x2}{y1-x1}[/tex]
[tex]\frac{6-0}{2-8}=\frac{6}{-6}=-1[/tex]
3. Negative reciprocal = 1
4. y=mx+b
y=-1/2x+6
Use the law of sines to find m
Answer: 5.22
Step-by-step explanation:
Given
[tex]\angle A=103^{\circ}[/tex]
Sine law is [tex]\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}\\[/tex]
Here, a=8, c=5
Putting values
[tex]\Rightarrow \dfrac{8}{\sin 103}=\dfrac{5}{\sin C}\\\\\Rightarrow \sin C=\dfrac{5}{8}\sin 103^{\circ}=0.6089\\\Rightarrow C=37.51^{\circ}[/tex]
[tex]\Rightarrow \angle B=180^{\circ} -103^{\circ}-37.51^{\circ}\\\Rightarrow \angle B=39.49^{\circ}[/tex]
If b=m, then
[tex]\Rightarrow \dfrac{8}{\sin 103^{\circ}}=\dfrac{m}{\sin 39.49^{\circ}}\\\\\Rightarrow m=\dfrac{\sin 39.49^{\circ}}{\sin 103^{\circ}}\times 8=5.22[/tex]
Write the following:
a) 16 as a fraction of 152
b) 15 as a fraction of 210
Answer:
[tex]\frac{16}{152}[/tex]
[tex]\frac{15}{210}[/tex]
Step-by-step explanation:
Can you guys help with this?
Answer:
Step-by-step explanation: