Answer:
A
Step-by-step explanation:
49y² - x² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
49y² - x²
= (7y)² - x²
= (7y - x )(7y + x) → A
Help me please and i will give you a brainlist
Answer:
I believe it's Option B, hopefully this helps! Sorry if it doesn't
Rebecca wants to prove that if the diagonals in parallelogram are perpendicular, then it is a rhombus. Select the appropriate rephrased statement for Rebecca's proof
Answer:
The answer is C
Step-by-step explanation:
Khan Academy
Answer:
C
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP MEEE PLSSSS
Answer:
d. 2x+3
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Tucker goes to bed at 8:25 pm every
night. He wakes up at 6:45 am. How
long does Tucker sleep each night?
Answer:
10 hours and 20 minutes.
Step-by-step explanation:
We can find out how many hours of sleep Tucker gets every night by counting in one-hour intervals.
One hour from 8:25 is 9:25.
9:25, 10:25, 11:25, 12:25, 1:25, 2:25, 3:25, 4:25, 5:25, 6:25.
This is 10 hours.
Now we count in ten-minute intervals to get to 6:45
6:35, 6:45.
This is 20 minutes.
Therefore, Tucker gets 10 hours and 20 minutes of sleep each night.
This is equivalent to 620 minutes.
===================================================
Explanation:
The user purrugh has a great answer. I'll provide a slightly different approach.
The timespan from 8:25 PM to 9:00 PM is 35 minutes. Note how adding 35 minutes to 25 past the hour gets us to 25+35 = 60 minutes, so we're at the top of the hour now, and at 9 o' clock on the dot.
Then from 9 PM to 12 midnight is a gap of 3 hours (because 12-9 = 3). From midnight to 6 AM is another 6 hours. So far we have 3+6 = 9 hours, plus the additional 35 minutes mentioned earlier. The duration so far is 9 hours, 35 minutes. We still have to account for another 45 minutes, since we want to get to 6:45 AM and not 6:00 AM.
Note how 35+45 = 80, which is over 60. This means 35 min + 45 min = 80 min = (60 min) + (20 min) = 1 hr, 20 min
That "1 hr, 20 min" is added onto the "9 hours" from earlier and we arrive at 10 hours, 20 minutes as the final answer
-----------------------------
Yet another approach is to do everything in minutes, and then convert to hours,minutes format at the very end.
Again the gap from 8:25 PM to 9:00 PM is 35 minutes. From 9 PM to midnight is 3 hours, or 3*60 = 180 minutes. We have a duration so far of 35+180 = 215 minutes.
From midnight to 6 AM is 6*60 = 360 minutes. The duration has been updated to 360+215 = 575 minutes. Finally, from 6 AM to 6:45 AM is the last gap of 45 min to get us to 575+45 = 620 minutes.
Tucker slept a total of 620 minutes. Let's convert that to hours,minutes format. Note how 620 = 600+20 and how 600/60 = 10. Meaning that 600 minutes = 10 hours. Therefore,
620 min = (600 min) + (20 min) = 10 hours, 20 minutes
Mhanifa Plz help me with this thank you!
Answer:
D
Step-by-step explanation:
This is an example of the Pythagorean theorem.
In triangle BEH, the sum of the squares of the sides of the two smaller sides, BE and BH is equal to the longest side squared, EH.
What is 17 percent as a number
Answer:
0.17
Step-by-step explanation:
17 percent can be turned into a decimal by moving the invinsible dot 2 times to the left. therefore 17% becomes 0.17
Answer:
Well 17 percent of 100 is 17. It really depends on the number that you are finding the percentage of.
solve the triangle give the measure of angle G
Answer:
G = 46 degrees
Step-by-step explanation:
Here, we want to find the measure of angle G
Mathematically, as we can see, what we have is a right triangle
For a right triangle , the sum of angles is 90 degrees
Thus, if we add the two internal angles, we get 90 degrees
Hence;
44 + G = 90
G = 90-44
G = 46 degrees
Sinx = [tex]\frac{3}{8}[/tex]
Find cosx and tanx
Answer:
Cos(x) = sqrt(55) / 8; tan(x) = 3/sqrt(55)
Step-by-step explanation:
Sine is opposite over hypotenuse. So we get that the opposite is 3 and the hypotenuse is 8. To find the adjacent (which we'll need for cosine and tangent), we can use pythagoras' theorem. Therefore, 8^2 = 3^2 + A^2, where A is the adjacent. A then must equal sqrt(64-9) = sqrt(55).
Cosine is adjacent over hypotenuse, which is then sqrt(55) / 8. Tangent is opposite over adjacent, which is then 3 / sqrt(55) or (sqrt55)*3/55
This Question: 1 pt
20 of 20
This Qu
th
The pH of a fruit juice is 2.9. Find the hydronium ion concentration, [H30 * ), of the juice. Use the formula pH = -log[H30*]
The hydronium ion concentration [H30 + ] is approximately moles per liter.
(Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest tenth as needed.)
Answer:
scientific" (and any subsequent words) was ignored because we limit queries to 32 words.
Your search - This Question: 1 pt 20 of 20 This Qu th The pH of a fruit juice is 2.9. Find the hydronium ion ... - did not match any documents.
Suggestions:
Make sure that all words are spelled correctly.
Try different keywords.
Try more general keywords.
Try fewer keywords.
32 is 4 more than twice a
number. What is the number?
Answer:
The number you are looking for is 14.
Will mark as brainliest :)! Suppose that there were a strong correlation between the variables d and t.
Which of these is a true statement?
A. d must not cause f.
B. fmust cause d.
c. d may cause f.
D. d must cause f.
Answer:
c
Step-by-step explanation:
A strong correlations shows evidence of a relationship between the two quantities. It does not necessarily indicate that a change in one variable is causing a change in the other one. There MAY be a causal relationship, but the correlation, by itself, does not prove that.
can someone please help with this? real answer only please......ive asked multiple questions today becuz i dont really understand the assignment, please help
circular mirror has a radius of 3.4 feet. Rosalinda is decorating the edge of the mirror with
washi tape. If she has exactly enough washi tape, which measurement is closest to the
length of the piece of washi tape in feet?
Answer:
i may not have the explanition but its 21.35
Which expression is equivalent to −13(6x+15)−3?
Fill in the table for this input-output rule:
4
divide by 2
and add 1
input
3.
output
0
2.
-8
100
Answer:
1, 2, -3, 51
Step-by-step explanation:
0 ÷ 2 = 0, then + 1 = 1
2 ÷ 2 = 1, then + 1 = 2
-8 ÷ 2 = -4, then + 1 = -3
100 ÷ 2 = 50, then + 1 = 51
5x + 8 = 23
Solve x.
Please
Answer:
X=3
Step-by-step explanation:
I got a calculator.
Answer:
[tex]x=3[/tex]
Step-by-step explanation:
First you want to subtract 8 from 23
[tex]23-8=15[/tex]
Now take 15 and divide by 5
[tex]15/5=3[/tex]
3 is the final answer
Write the number 560 in scientific notation.
Answer:
5.6 x 10 2
Step-by-step explanation:
Answer:
5.6 × [tex]10^{2}[/tex] - scientific notation
hope this answer helps you.....
A publisher sells
[tex] {10}^{6} [/tex]
copies of a new science fiction book and
[tex] {10}^{3} [/tex]
copies of a new mystery book. How many times as many science fiction books were sold than mystery books?
_ books
An object is launched directly upward at 64 feet per second from a platform 80 feet high. Write the function for the height of this object at any given time (t seconds).
Answer: 144 feet
Step-by-step explanation:
11. Angela is using several cones to decorate for a party. The cones she has
chosen are 8 inches tall and have a radius of 3 inches. What is the volume of
one of the cones to the nearest whole cubic inch?
Answer:
[tex]75.4 in^3[/tex]
Step-by-step explanation:
First start with your cone volume equation which is
[tex]V=\pi r^2\frac{h}{3}[/tex]
Now plug in what you know
r=3
h=8
[tex]V=\pi (3)^2(\frac{8}{3})[/tex]
put in calculator and get
[tex]75.4 in^3[/tex]
Jane has 3 yards of ribbon. It takes 1/4 of a yard to make a bracelet. How many bracelets can she make?
Answer:
12 bracelets
Step-by-step explanation:
Hometown Donuts recently sold 19 donuts, of which 6 were cream-filled donuts. What is the experimental probability that the next donut sold will be a cream-filled donut?
Answer:
13
Step-by-step explanation:
Hometown Donuts recently sold 19 donuts, of which 6 were cream-filled donuts. What is the experimental probability that the next donut sold will be a cream-filled donut?
Write your answer as a fraction or whole number.
-------------------------------------------------------------------------------------------------------------
Remember That The experimental probability is the number of times an event occurs out of the total number of trials.
-------------------------------------------------------------------------------------------------------------
So. Write the experimental probability as a fraction in simplest form: P(Cream-Filled Donuts) = Cream-Filled Donuts over / divided by the total (Cream-Filled Donuts/Total)
-------------------------------------------------------------------------------------------------------------
= 6/19
-------------------------------------------------------------------------------------------------------------So, The Answer Would Be 6/19
This is the right answer, I had the same question ^^
Which of the following is a proportion?
Answer:
the second one
Step-by-step explanation:
I need help with all 8!
Select the correct answer.
A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million units, n years after the survey is conducted is modeled by function p below. The parameter b is an unknown positive base.
p(n)=1.7×b^n
Which statement is true about this situation?
A.
When the survey was initially conducted, the average sales of smartphones was 1.7 million units.
B.
If b = 1.02, the annual sales of smartphones will double in 2 years.
C.
If b = 1.45, the annual growth rate of the sales of smartphones is 145%.
D.
The average annual sales of smartphones increases by 1.7 million units every year.
Answer:
When the survey was initially conducted, the average sales of smartphones was 1.7 million units.
Step-by-step explanation:
The exponential equation is P ( n ) = 1.7 ( b )ⁿ , where n is the number of years and P ( n ) is the annual sales of smartphones and the initial sales of smartphones was 1.7 million units
What is exponential growth factor?The exponential growth or decay formula is given by
x ( t ) = x₀ × ( 1 + r )ⁿ
x ( t ) is the value at time t
x₀ is the initial value at time t = 0.
r is the growth rate when r>0 or decay rate when r<0, in percent
t is the time in discrete intervals and selected time units
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
P ( n ) = 1.7 ( b )ⁿ
where , n is the number of years
And , P ( n ) is the annual sales of smartphones
Now , the value of b is the exponential growth factor
At the initial year , the number of smartphones sold is when n = 0
So , when n = 0
P ( 0 ) = 1.7 ( b )⁰
P ( 0 ) = 1.7 million units
Hence , the number of smartphones sold in initial year is 1.7 million units
To learn more about exponential growth factor click :
https://brainly.com/question/13674608
#SPJ7
which graph represents a function
Answer:
a
Step-by-step explanation:
Answer:
dfvgbhnm,kmjnhbgvx
Step-by-step explanation:
c vgbhjnmk,jnhbgvfc
which fractions are equivalent to 2/6. (select ALL that apply).
4/8
1/4
5/9
1/3
4/12
Answer:
1/3 and 4/12
Step-by-step explanation:
Rob is saving to buy a new MP3 player. For every $16 he earns babysitting, he saves $9. On Saturday, Rob earned $32 babysitting. How much money did he save?
If he earned $32, he saved $____
Answer:
18 dollars
Step-by-step explanation:
32÷16=2
9×2=18
Someone please help me withe this
Answer:
13
Step-by-step explanation:
it will be B because it find the missing side you need to do the pythagorean theorem
find the area of the figure. round your answer to the nearest hundredth
Answer: 84.14
Step-by-step explanation:
Area of the rectangle is L*W=B*H
14*5=70
To find the area of the half circle we must use the formula pi r^2/2
r=radius
and the radius is 6 because we add 4 and 4 and need to get to 14
because the line below it is 14 and it is a rectangle so the lengths are the same.
Diameter=6
So radius =3
pi (3)^2/2=
9/2 pi + 70=
84.14
Answer: 84.13
lmk if this is wrong
Step-by-step explanation:
Area of the rectangle:
5(14)=70
Area of the half circle:
Formula: πr^2
Substitute: 3.14(3)^2
Solve: 3.14(9)
3.14(9)=28.26
Divide the area by 2 since it's a half circle
28.26/2=14.13
Add the area of the rectangle and half circle
70+14.13=84.13
