Answers
Answer:
A
Step-by-step explanation:
[tex]\sqrt{50}[/tex] is not a perfect square. This means that you can rule out answers B and D, because it won't be 'exactly' anything.
Let's think about the other answer choices. C says that the answer of \sqrt{50} will be between 24 and 25. This is easily checkable by doing [tex]24^{2}[/tex], which equals 576. This easily eliminates option C.
Now, if the other answer choices weren't so obviously incorrect, let's see how you would solve this. What's the closest perfect square root under 50?
[tex]\sqrt{49}[/tex], which equals 7.
What's the closest perfect square root above 50?
[tex]\sqrt{64}[/tex], which equals 8.
This puts [tex]\sqrt{50}[/tex] between 7 and 8.
Answer:
Option A
Step-by-step explanation:
Here we can find out the correct option by eliminating the wrong options . We know that √50 is not a perfect square.
This eliminates option d as it says that its value is exactly 7 .
[tex]\implies \red{\text{ Option D is wrong }}[/tex]
Now look at Option C , it says that it lies between 24 and 25 . This is impossible since , 24² = 576 and 25² = 625 .
[tex]\implies \red{\text{ Option C is wrong }}[/tex]
Again the option b is similar to option d , as it says its exact value is 25 which is not possible. Hence this option is also wrong .
[tex]\implies \red{\text{ Option B is wrong }}[/tex]
Now we are ultimately left with option with shared that its value lies between 7 and 8 . We know that 7² = 49 and 8² = 64. And 50 lies in between them. Therefore Option A is the correct option .
[tex]\implies \green{\text{ Option A is correct. }}[/tex]
Related Questions
What is the Negative reciprocal of -2/3?
Answers
Answer:
3/2
Step-by-step explanation:
"Negative" means take the opposite sign.
"reciprocal" means flip it over.
(b)Newton has bought 12 dozen copies in Rs 4320. His expenditure to bring the copies
to his shop is Rs. 288. How much profit does he make in one copy after selling all
copies in Rs. 5760? Also how much profit in percent did he get in the business of
copy? Find it.
Answers
Answer:
30%
Step-by-step explanation:
4320 - 288 = 4032
4032/12 =336 per copies
So, he sold them in 5760
5760 - 4032 = 1728
(1728/5760)*100 = 30%
Which system of equations is equivalent to this system? 5x+10=3(x+y) x+7=3x+7
Answers
Answer:
In equation form the answer is x=0y=10/3 but in point form the answer is (0,10/3)
Step-by-step explanation:
What value makes the equation below true?
1/8−(−5+3/4)=x+1
A
−5 1/8
B
2 1/8
C
3 3/8
D
3 1/8
Answers
Answer:
C. 3 3/8
Steps:
1/8-(-5+3/4)= x + 1
1/8 - (-20+3/4) = x+ 1
1/8 - (-17/4)=x+1
1/8 +17/4= x + 1
1+17x2 /8= x+1
1+34 /8= x+1
35/8 = x + 1
x= 35/8 -1
x= 35-8 /8
x=27/8
x=3 3/8
I don’t have a question but both of the answers are wrong i just did it right now and i got it wrong but it said the answer is 6
Answers
(WORK SHOWN BELOW)
Answer:
ok
Step-by-step explanation:
Please help me 6th grade math (brainly patrol pls dont delete this)
Answers
Answer:
4. 52. 5. 80% 6. 32% 7. 50 total players.
Step-by-step explanation:
4: 20% = .2 so you are going to multiply 65 by .2, and you get 13 then just subtract 13 from 65 and you get 52.
5: just do 4/5 and you get .8 which is 80%
6: just do 16/50 and you get .32 which is 32%
7: well if you notice that 35 is a multiple of 5 you can see that 35 is 70% of 50 and to prove that you can punch in 35/50 and you get .7 which is 70%
which shape
could this
be folded
to form?
-
Answers
Answer:
A cylinder.
Step-by-step explanation:
A cylinder has two round tops , and one long body shape. When you roll the rectangle, it creates the body shape of the cylinder and the circles are the tops.
4x:3 = 6:5 calculate the value of x
Answers
Answer:
-2
Step-by-step explanation:
4x:3=6:5.
4x/3=6/5
4x × 5=6×3
20 X=18
X=18-20
X=-2
The width of a rectangle is 14 meters less than the length. The area of the rectangle is 576 square
meters. Find the length and the width.
Answers
The answer is given is explanation
The circumference of a circle is 8π cm. What is the DIAMETER of the circle?
Answers
Answer:
8cm
Step-by-step explanation:
The circumference of a circle= π×diameter(d)
= πd= 8π cm
d=8π/π =8cm
Is the point (1, -3) a solution to the system? Show all work.
y<x-1 y>-x+2
Answers
Answer:
Well i don't have a notebook but i can tell you how to graph it
Step-by-step explanation:
First of all its dotted lines since ther arent less than/greater than or equal to
then the first equation is shaded down with a y intercept of -1 and a slop of 1
the second equation opens up has a slope of -1 and a y intercept of 2
To answer your question no it's not.
When Derrick turned 15, his grandparents put $10,000 into an account that yielded 4% interest, compounded quarterly. When Derrick turns 18, his grandparents will give him the money to use toward his college education. How much does Derrick receive from his grandparents on his 18th birthday?
Answers
Answer:
Derrick receive $11268.25 from his grandparents on his 18th birthday
Step-by-step explanation:
We are given Derrick turned 15, his grandparents put $10,000 into an account that yielded 4% interest, compounded quarterly.
When Derrick turns 18, his grandparents will give him the money to use toward his college education.
Principal = $ 10000
Time = 18-15 = 3 years
Rate of interest = [tex]4\% = 0.04[/tex]
No. of compounds per year = 4
[tex]Amount = P(1+\frac{r}{n})^{nt}\\Amount=10000(1+\frac{0.04}{4})^{4 \times 3}\\Amount =11268.25[/tex]
Hence Derrick receive $11268.25 from his grandparents on his 18th birthday
Find the slope of the line that passes through (8, 13) and (10, 10).
Answers
Answer:
-3/2
Step-by-step explanation:
use slope formula
y1-y2/x1-x2
! Please Hurry Offering 40 points No links!
In 1970 about 2,170,000 U.S. workers worked at home. During the next ten years, the number of workers working at home increased 4% per year.
Use y=a(1+r)^t
A) Write a model giving the number w (in millions) of workers working at home t years after 1970.
B)Find the number of workers working at home in 1980.
If you have any questions about what it is asking, please put them in the comments, rather than posting an answer asking a question
Answers
Answer: a) y= 2,170,000(1+0.04)^10
b) 3,212,130 U.S. workers working at home.
Step-by-step explanation:
Step-by-step explanation:
initial amount: 2,170,000
rate of growth: 4%, or 0.04
time: 10 years
Using this information we can use the formula y=a(1+r)^t to figure out the answer.
After plugging in the amounts, we end up with the equation: 2,170,000(1+0.04)^10
Now, all that's left is to calculate. The final amount is 3,212,130
Need help ASAP please
Part 1:
You started saving for a car when you were in middle school. You have done some research and discovered that it will cost you about $9,500 for a used car that would fit your needs. You were encouraged to invest some of your savings to help you get to your financial goal faster. So far you have saved $7,500. If you invest this money in a savings account with a 3.3% interest rate compounded annually, how long will it take to earn enough money to go purchase the car? Use the compound interest formula A = P (1 + i)n, where A is the accumulated amount, P is the principal, i is the interest rate per year, and n is the number of years. Round your final answer to the nearest tenth.
Answers
Answer:
7.3 years.
Step-by-step explanation:
A = P(1 + i)^n
9500 = 7500(1 + 0.033)^n where n = number of years.
1.033^n = 9500/7500
n log 1.033 = log(9500/7500)
n = log(9500/7500)/log 1.033
n = 7.28 = 7.3.
Which of the following is the equation for the line perpendicular to the line 3x -2y =10 that passes through the point (7,5)?
A. Y = 2/3x + 29/3
B. Y = -2/3x + 1/3
C. Y = 2/3x + 1/3
D. Y = -2/3x + 29/3
Answers
See attached picture
The equation of the perpendicular line will be y = 29 / 3 - (2/3)x. Then the correct option is D.
What is the equation of a perpendicular line?Let the equation of the line be ax + by + c = 0. Then the equation of the perpendicular line that is perpendicular to the line ax + by + c = 0 is given as bx - ay + d = 0. If the slope of the line is m, then the slope of the perpendicular line will be negative 1/m.
The equation of the line is given below.
3x - 2y = 10
The equation of the line that is perpendicular line is given as,
2x + 3y + d = 0
The equation is passing through (7, 5). Then we have
2(7) + 3(5) + d = 0
14 + 15 + d = 0
29 + d = 0
d = - 29
Then the equation of the line is given as,
2x + 3y - 29 = 0
2x + 3y = 29
3y = 29 - 2x
y = 29 / 3 - (2/3)x
The equation of the perpendicular line will be y = 29 / 3 - (2/3)x. Then the correct option is D.
More about the equation of a perpendicular line link is given below.
https://brainly.com/question/14200719
#SPJ2
Prove the following identity:
[tex] \frac{1 + \cos( \alpha ) }{ \sin( \alpha ) } + \frac{ \sin( \alpha ) }{1 + \cos( \alpha ) } = 2 \csc( \alpha ) [/tex]
Answers
Answer:
[tex]\dfrac{1+\cos(x)}{\sin(x)}+\dfrac{\sin(x)}{1+\cos(x)}[/tex]
[tex]=\dfrac{(1+\cos(x))(1+\cos(x))}{\sin(x)(1+\cos(x))}+\dfrac{\sin^2(x)}{\sin(x)(1+\cos(x))}[/tex]
[tex]=\dfrac{1+2 \cos(x)+\cos^2(x)+\sin^2(x)}{\sin(x)(1+\cos(x))}[/tex]
[tex]=\dfrac{1+2 \cos(x)+1}{\sin(x)(1+\cos(x))}[/tex]
[tex]=\dfrac{2+2 \cos(x)}{\sin(x)(1+\cos(x))}[/tex]
[tex]=\dfrac{2(1+ \cos(x))}{\sin(x)(1+\cos(x))}[/tex]
[tex]=\dfrac{2}{\sin(x)}[/tex]
[tex]=2 \csc(x)[/tex]
Step-by-step explanation:
please mark me as brainlest
need help with 3 and 4
Answers
Brainliest pls!
A store gets a shipment of 1000 light bulbs. Due to a manufacturing problem, 200 of the bulbs are defective, but the store's manager is not aware of this. As she always does, however, the manager will check a sample of the bulbs to look for potential problems. How can she choose a sample of the bulbs to represent the shipment?
Answers
Answer:
Use a simple random sampling technique.
Step-by-step explanation:
Sampling is a procedure applied in statistical analysis where a fixed number of data (observations or individuals) are selected from a superior population. The approach used to select a sample from a population is determined on the basis of the type of analysis being executed.
To test for defective bulbs the store manager has to select a sample. She can select a sample of size n from the 1000 bulbs using the simple random sampling technique.
A simple random sample is a part of a statistical population in which every individual of the population has an equal probability of being selected.
Assigning each individual of the population a unique number and using a computer or random number generator for selection is a procedure to select a simple random sample.
PLEASE HELP ASAP
A city starts with a population of 500,000 people in 2007. Its population declines according to the equation
P(t) = 500,000e -0.099t
where P is the population in t years later. Approximately when will the population be one-half the initial amount?
Answers
Answer:
Step-by-step explanation:
Given the exponential function:
P(t) = 500,000 * e^(-0.099t)
P(t) = population t years later
When population will be one-half the initial amount
Half the initial amount = 500000/2 = 250,000
250000 = 500000 * e^(-0.099t)
250000/50000 = e^(-0.099t)
0.5 = e^(-0.099t)
Take the In of both sides
In(0.5) = - 0.099t
−0.693147 = - 0.099t
0.693147 / 0.099 = t
t =
ห - 14W - 32
I’m factoring polynomials please help
Answers
Answer:
Step-by-step explanation:
Sum = -14
Product = - 32
So, the factors = -16 , 2
When we add -16 +2 = -12 and when we multiply it is -32
w⁴ - 14w² - 32 = w⁴ - 16w² + 2w² - 16 * 2
= w²(w² - 16) + 2(w² - 16)
= (w² - 16)(w² + 2)
= (w² - 4²)(w² + 2)
= (w + 4)(w - 4)(w² + 2)
Step-by-step explanation:
Replace w^2 with any other variable for eg: w^2=a
so that will make the equation:
a^2-14a-32
now factorize this equation and u can find the value of a
a^2-16a+2a-32
a(a-16)+2(a-16)
so factors= (a+2) (a-16)
since a was w^2 so replace them with w^2 and u got factors of the equation
you can also directly factorize the whole equation through middle term breaking
w^4-16w^2+2w^2-32
w^2(w^2-16)+2(w^2-16)
(w^2+2)(w^2-16)
you get the same answer
A truck delivers 14,000 pounds of gravel.
How many tons are in 14,000 pounds?
Answers
Answer:
7
Step-by-step explanation:
there is 2k pounds per ton, so it would just be 14/7
Answer:
7
Step-by-step explanation:
GIven;
A truck delivers 14,000 pounds of gravel.
To FInd;
How many tons are in 14,000 pounds?
Note;
Pound to Ton = Formula: Divide the mass value by 2
Solve;
Hence, 14/2 = 7
~Learn with Lenvy~
A b c or d either one of those if it isn’t abc then it’s d just lmk
Answers
Answer:
A. 3680.32 inches³
Step-by-step explanation:
To find the volume of this shape, all we have to do is multiply the length width and height together:
v = l × w × h = 15.5 × 11.2 × 21.2 = 3680.32 inches³
Hope this helps!
9th math will give brainly thanks!
Answers
Answer:
Step-by-step explanation:
1. Write an equation to find the number of toppings, x, when you would pay for the same amount for Pizza A and B.
So, we have to make a relationship between Pizza A and Pizza B, and this is talking about the pizza and toppings so,
$10 + $1.50x = $12.50 + $1.00x
Now we solve for the x values and the starting amount of money,
0.50x = 2.50
and that gives us,
$5
The answer also solves for the bottom one, the answer you need on the top one is,
$10 + $1.50x = $12.50 + $1.00x
Please help (and explain why the answer is right) i'd appreciate that
Answers
Answer:
a is the answer................. :P
Step-by-step explanation:
slope = rise/run
rise=2
run=4
rise/run= .5
and it intercepts y-axis at -5
Can someone explain this question on how to solve it please
Answers
Answer:
110
Step-by-step explanation:
Angle P and angle N are angles on a straight line. The sum of angles on a straight line is always 180 degrees.
180-70=110
0.283 + 35 =
adding decimals
Answers
Answer:
35.283
Step-by-step explanation:
Let's put it in a vertical format;
35
0.283
35 plus 0 = 35, and the rest will remain same, so the answer is 35.283
How to make 20 using the number 3,5,6,3
Answers
Answer:
5+6 +(3*3)
Step-by-step explanation:
If you are allowed to mix the numbers then
5 + 6 + (3*3)
5+6 = 11
3*3 = 9
11+9 = 20
Hope this helps
1) A train travels 200km is 5 hours, at this same speed how much time would it take to travel in 600km?
2) If 2 men can weed a compound in 6 days, then how long would it take 4 men working at the same rate to weed the compound?
3) If 3 men can mow a large piece of lawn in 4 days, then how long would it take 2 men working at the same rate mow the same lawn?
4)Lia can string 48 beads in 3 minutes, at this same place, how many beads could she string in 1 minute?
Answers
Answer:
it will travel 9 hour in 600miles
it will take 4 men to weed the same compound in 2 days
it will take 2 men to now a large piece of law in 3 days
Step-by-step explanation:
it
need help i dont understand what i have to do plss help
Answers
Answer:
They are in sets of two! (First two are a pair) First two are copying a line segment. The next two are bisecting!
Step-by-step explanation:
Given in pictures.