(a ² + b ²) / (ab) = a/b + b/a = (√3 - √2) + 1/(√3 - √2)
Rationalize the denominator of the second term:
1/(√3 - √2) • (√3 + √2)/(√3+√2) = (√3 + √2)/((√3)² - (√2)²) = √3 + √2
So we have
(a ² + b ²) / (ab) = (√3 - √2) + (√3 + √2) = 2√3
GUYS I NEED YOUR HELP THIS IS SUPER HARD PLZ SOMEONE HELP ME I BEEN WORKING ON THIS QUESTION FOR A WEEK AND I STILL DONT KNOW THE ANSWER
Answer:
1
Step-by-step explanation:
A drawing contained 5 circles, 8 triangles, and 6 squares. What is the ratio of circles to squares?
Answer:
5:6
Step-by-step explanation:
Please help I have no idea how to do this
Mr. Young is offered an investment opportunity. Kyra says she will invest his money at a 6% simple interest rate over the next 7 years. Mr. Young decides to invest $3000. How much interest will he have earned when the investment matures? *
Answer:
$126
Step-by-step explanation:
Given that:
Investment is done as per Simple interest.
Principal = $3000
Time for which the investment is to done = 7 years
Rate of interest = 6%
To find:
Interest earned when the investment matures?
Solution:
Formula for Simple Interest :
[tex]Simple\ Interest = \dfrac{PRT}{100}[/tex]
Where [tex]P[/tex] is the principal amount
[tex]R[/tex] is the Rate of Interest
[tex]T[/tex] is the time for which the investment is made
Putting the given values:
[tex]Simple\ Interest = \dfrac{3000\times 6\times 7}{100}\\\Rightarrow Simple\ Interest = \dfrac{12600}{100}\\Simple\ Interest = \$126[/tex]
Therefore, the answer is:
Interest earned is $126.
Will give crown helo
Answer:
[tex]-\frac{3}{5}[/tex]
Step-by-step explanation:
Your points on this line are:
(4, -1) and (-1, 2)
To find slope we will use the slope formula.
[tex]\frac{y2-y1}{x2-x1}[/tex]
Substitute:
[tex]\frac{2+1}{-1-4}[/tex]
[tex]\frac{3}{-5}[/tex]
This means the slope is
[tex]-\frac{3}{5}[/tex]
please send hindi class 9th sparsh questions answer
Answer:
ayo what?
Step-by-step explanation:
HELP I WILL GIVE BRAINIEST PLEASE
What is f(5) for the function f(x) = 6x + 7
Answer:
F(5)= 37
Step-by-step explanation:
F(x)= 6x + 7
F(5)= 6(5) +7
F(5)=30+7
F(5)=37
Find the area of a parallelogram with a base of 5cm and height of 15 cm
Answer:
think about it right now its easy or use a calculator
Step-by-step explanation:
amazing
Answer:
75 area
Step-by-step explanation:
Find the slope of the line
the slope is the number that x is multiplied by so the answer is C)7
Please help my grade are low!!
Answer:
250%of4.4=look it up girl
Step-by-step explanation:
The fraction 2 5/8 is equivalent to which of the following decimal numbers? pls help ill mark you the brainlyest
A 2.58
B 2.625
C 2.63
D 2. 6
Which is the best estimate 49% of 15
Answer:
7.35
Step-by-step explanation:
Answer:
7.35
Step-by-step explanation:
I mutilplied 15 by 0.49.
whats the product of -3 and 5
Answer:
-15
Step-by-step explanation:
What
Answer:
-15
Hope it helps!
Mary wants to see if the 2,000 high schoolers at her school like pizza or not. To find out
how many of them like pizza, she goes to a local pizzeria and intends to ask 100 high
schoolers who arrive. She gets tired after asking 15. (7 pts)
a. What is the population? ______________
b. What is the sample? ________________
c. What kind of sampling is she using? ________________
d. Will this poll be biased? If yes how so? If yes, name the type of bias and explain
why this poll has that type of bias.
Answer:
a. 100
b. 15
c. Convenience sampling
d. (i) The poll will be biased because
(ii) The manner of bias of the poll is that the sample chosen from the population are those that are more likely to have the same positive response to the survey question
(iii) Selection bias,
(iv) The reason why the poll has the selection bias is because a subjective sampling method was used
Step-by-step explanation:
The given parameters are;
The number of high schoolers at the school = 2,000
The number of high schoolers at the pizzeria Mary intends to ask = 100
The number of high schoolers she ask = 15
Therefore;
a. The population is the number high schoolers at her school = 100
b. The sample = The number of high schoolers that surveyed = 15
c. The kind of sampling Mary is using is convenience sampling
d. (i) The poll is biased because, the sample chosen from the population are those who already are at the pizzeria where pizza is sold and they are more likely to have the same positive response to the survey question
(ii) The type of sampling bias is Selection bias,
(iii) The reason why the poll has the selection bias is because the sampling was made subjectively by selecting to sample only the high schoolers at the pizzeria, which is the same as the high schoolers that are more certain to like pizza.
James is building a house on the lot shown below. The dimensions of the lot are (6+x) feet and (6−x) feet. The blue prints show the dimensions of the house to be (2+x) feet and (2−x) feet. The rest of the lot will be his yard.
How large is the yard?
square feet
James is thinking about extending the house by adding 2 feet to the length and 2 feet to the width.
How much area is now left for the yard?
square feet
Answer:
32 square feet20 square feetStep-by-step explanation:
Given
The dimensions of the lot are (6+x) feet and (6−x) feetThe dimensions of the house to be (2+x) feet and (2−x) feetArea of the yard = Area of the lot - Area of the house
Area of the yard:
(6 + x)(6 - x) - (2 + x)(2 - x) =36 - x² - 4 + x² =32 square feetIf the house is extended, then the area of the yard will change as:
(6 + x)(6 - x) - (4 + x)(4 - x) =36 - x² - 16 + x² =20 square feetbrainliest for correct answer
Answer:
D....brainliest please!!!!
Step-by-step explanation:
A function is when none of the coordinates have the same x axis so in this case it is D!
The answer is
D) (3,4)(-2,2)(6,1)(-8,2)
reason why it is because all the othe answers have X repeated which make them not functions.
Sarah is paying off a student loan at the rate of $900 per year. Fixed expenses:
Incomplete question. I inferred you want explanations about what are fixed expenses.
Explanation:
In accounting, the term fixed expenses apply to expenses that do not change for a considerable period of time. In other words, these expenses are fixed in nature. These expenses for example may include; rent payments, mortgage payments, insurance payments, and utility expenses (electricity bills and phone bills, etc).
I need help on question 3... Help me please!!!!
Answer:
Yes
Step-by-step explanation:
Because they both have 90° angles forming a square
Answer:
Yes, because, both ten divided by eight and fifteen divided by twelve equals one and twenty-fifths.
Explanation:
10 / 8 = 1.25
15 / 12 = 1.25
<3 Enjoy,
Dea
How would I graph this?
[tex]y\leq 2x-5[/tex]
↝ x-intercept
[tex]2x-5=0\\2x=5\\x=\frac{5}{2}[/tex]
↝ y-intercept
y = -5
↝ [tex]y\leq 2x-5[/tex] means that the shade/area is below the graph as shown in the first picture.
[tex]y\leq -\frac{1}{2}x-3[/tex]
↝ x-intercept
[tex]-\frac{1}{2}x-3=0\\-x-6=0\\-x=6\\x=-6[/tex]
↝ y-intercept
y = -3
↝ Since it's "≤" therefore. The shade/area is below the graph. For second picture.
First picture is first inequality
Second picture is second inequality.
what is the answer to -1-7
Answer: 6
Step-by-step explanation:
brainliest plz
Answer:
-8
Step-by-step explanation:
Imagine -1 on a number line, then go back (or subtract) 7 spaces, and you'll get -8. Hope it helps.
Jackie has a roll of ribbon that has 6 feet of ribbon. She is decorating for a birthday party and needs to wrap 10 gifts. Each gift requires 7.5 inches of ribbon. She estimated by multiplying 10 times 7 that she would have enough ribbon for the 10 gifts. Is she correct? Why or why not?
Answer:
She does not have enough ribbon.
Step-by-step explanation:
Each gift is equal to 7.5. Take 10*7.5=75in
In 6 feet how many inches are there? There is 12 in 1 feet. 6*12=72 inches. She would need to round up because of the .5
Answer:
No, she is not correct
Step-by-step explanation:
She used 7 instead of 7.5 inches, and her answer would be 5.83 feet, and would be under her total 6 feet. But, if she used 7.5 like she was supposed to, she would have gotten 6.25 feet, which would mean she wouldn't have enough.
PLEASE HELP WITH #3 i’ll give brainliest
Step-by-step explanation:
Lets begin with this 4x-25=x+14, 3x=39, so x=13, than we plug it in to side NP because that is the most simple one to plug it into to and that side is 27 since the triangle is equilateral all sides are the same so it is 27, 27, 27, for the sides and x=13
I NEED HELP PLSSSSSSSSSSS
Answer:
C
Step-by-step explanation:
The weight of 4 eggs is shown. Identify the constant of proportionality of total weight to number of
eggs.
A square room has a side that measures 13.5 feet. What is the area of the
largest piece of carpet that could fit in the room?
if the distance from 0 to x on a number line is less than 5, then -5 is negative.. Is the answer always, sometimes, or never.
Answer:
Sometimes
Step-by-step explanation:
Solve the system of linear equations by elimination.
12x−7y=−2
8x+11y=30
Answer:
x=1
y=2
Step-by-step explanation:
In which figure is the height of the cylinder half the radius? A cylinder with a height of 2 and diameter of 8. A cylinder with a height of 4 and diameter of 8. A cylinder with a height of 8 and diameter of 8. A cylinder with a height of 16 and diameter of 8.
Answer:
A) A cylinder with a height of 2 and a diameter of 8.
Step-by-step explanation:
The height of the cylinder is half the radius. Therefore.
Height of the cylinder = (half of the radius)/2
Answer choice A) A cylinder with a height of 2 and a diameter of 8.
Note that a diameter is found using the following formula:
d (diameter) = 2r (radius).
First, divide 2 from the diameter to find the radius:
8/2 = 4
Next, divide by 2 again to find the height of the cylinder:
4/2 = 2
In this case, the height of the cylinder is 2, ∴ the choice is correct.
~
Answer:
a
Step-by-step explanation:
Three times a number plus six is no more than eighteen
Answer:
3x4=12
12+6=18
Step-by-step explanation:
The vertical and horizontal axes on a coordinate plane is called the...
Answer:
the horizontal axis- X
the vertical axis- Y
