Answer:
20
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
21^2 + b^2 = 29^2
441 + b^2 = 841
Subtract 441 on both sides to get b^2 = 400
Take the square root of both sides to get b = 20
The total mass of cells in a petri dish is 3 × 10–2 gram. The mass of each cell is 4 × 10–5 gram.
How many cells are in the dish?
A. 7.5
B. 7,500
C. 75
D. 750
Find the value of x explain how you got your answer
Answer:
step 1: x+50+4x=90
the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.
step 2: x+50+4x=90
x+4x=50
5x=50
x=10
then you solve the equation, x is 10
may someone please help me out
C. 700 units.
The formula for the surface area of a rectangular prism is: 2 ((Width × Length) + (Height × Length) + (Height × Width))
(14 × 12) + (7 × 12) + (7 × 14)
168 + 84 + 98 = 350
Now do 350 × 2 = 700
700 units squared.
"People should not be afraid of their governments.
Governments should be afraid of their people." [V]
DO YOU AGREE????
YES OR NO
Answer:
YESSSSSSSSSSSSSSSSSS
i mean theres a ton of us we can over power them anytime!
ASAP!!!!!!!!!!!!!!!!!!
Answer:
d $258.50
Step-by-step explanation:
hope it helps
does -8+y=-5 have a slope of 8
Answer:
no
Step-by-step explanation:
-
HELP!!!!
What is the surface area of the figure below?
surface area= perimeter x height + 2b
s= pxh+2b
example: 18(8)+2(12)
explain: 18 is the perimeter and 8 is the height then you have to add the base times 2
Find the areas of a circle whose diameter is 21 cm
Answer:
Your answer is 346.36059
Step-by-step explanation:
A = pi*r²
A = pi * 10.5²
A = pi * 110.25
A = 346.36059
We can write the the area of the circle as 110.25π square centimeter.
What is Area?Area is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -
V = ∫∫F(x, y) dx dy
Given is a circle whose diameter is 21 cm.
It is asked to find the area of a circle whose diameter is 21 cm.
It is given that the diameter of the circle is -
d = 21 cm
r = d/2 = 21/2
r = 10.5 cm
We know that the area of the circle as -
Area = πr²
Area = π x 10.5 x 10.5
Area = 110.25π
So, it can be concluded that the area of the circle is 110.25π square centimeter.
Therefore, we can write the the area of the circle as 110.25π square centimeter.
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Please help me last time I asked 2 days ago! No one answered. :(
Answer: The answer is number 4
Step-by-step explanation:
The answer is the one in the right up, the first one.
A cone has a volume of 1256 cubic feet and a radius of 10 feet. What is its height?
Answer:
hight equals 11.99 I think, I could be wrong.
The exact length of line segment AB is?
Answer:
6in
Step-by-step explanation:
ill give the brainliest
Answer: I think its A and C
Step-by-step explanation:
Please mark me brainliest
simon will deposit $250 into two savings accounts. account 1 earns 1.6% interest compounded annually. account 2 earns 1.6% simple annual interest. if simon makes no additional deposit or withdrawals, which account is closest to the difference in the interest that the account will have earned at the end of 10 years. A. $253.01 B.$43.01 C.$83.01 D.$3.01
The difference in the interest that the account will have earned at the end of 10 years is of:
D. $3.01.
What is the account 1 interest earned?The amount of interest earned, in compound interest, after t years, is given by:
[tex]I(t) = P\left(1 + \frac{r}{n}\right)^{nt} - P[/tex]
In which the variables are listed as follows:
P is the principal.r is the interest rate, as a decimal value.n is the number of times that interest is compounded per year, annually n = 1, semi-annually n = 2, quarterly n = 4, monthly n = 12.In the context of this problem, these parameters are given as follows:
P = 250, r = 0.016, n = 12, t = 10.
Hence the interest earned by account 1 is:
[tex]I(10) = 250\left(1 + \frac{0.016}{12}\right)^{12 \times 10} - 250 = 43.35[/tex]
What is the account 2 interest earned?For simple interest, the amount of interest earned is:
I(t) = Prt.
Hence:
I(10) = 250 x 0.016 x 10 = 40.
Hence the difference is:
43.35 - 40 = $3.35.
Which is closest to option D.
More can be learned about simple interest at https://brainly.com/question/25793394
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Please help with number 12
Answer:
61
Step-by-step explanation:
Answer:
Step-by-step explanation:
12)
we are told that ∠ABD = 61°
then we also know that ∠ADB = 61° b/c there are the equal legs of an isosceles triangle.
and we know by inspection that the ΔBCD is identical to ΔABD so it also has 61° angles so
∠ABC = 61 + 61 =122°
:)
Can someone please help me!! Ive been asking for help and I not getting any.. please help
A bridge stretching 100 yards has support pillars spaced 10 yards apart from the beginning to the end of the bridge. How many pillars are needed?
Answer:
10
Step-by-step explanation:
100 divided by 10 = 10
How likely is it that you would push a green button if your eyes are closed
Answer:
This really depends on the situation, and many variables. Is there a specific moment? Multiple buttons? Would you mind giving more context or is that it?
Answer:
PENDEJO ME LA PELA GONORREA BBO HPTA
The ratio of cups of sugar to cups of flour needed to bake cookies is 1:5.
If Myesha uses 25 cups of flour, how much sugar is needed? *
Convert the angle \theta=\dfrac{5\pi}{12}θ=
12
5π
theta, equals, start fraction, 5, pi, divided by, 12, end fraction radians to degrees.
Answer:
75°
Step-by-step explanation:
What is 9 divided by 1/5
Answer:
its 45
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
9 * 5/1
=> 45
Thenks and mark me brainliest :))
Amelia received $4.15 in tips from one table. All of her tips were in quarters, dimes and nickels. There were five less dimes than quarters and three more nickels than twice the number of quarters. How many dimes did she have?
Answer:
the answer is 23.........
ILL BRAINLIEST YOU IF YOU GET IT RIGHT PLEASE HELP ME
Step-by-step explanation:
R' = (-2,0)
E' = (-2,2)
F' = (4,4)
A poll is being taken on Wednesday to predict which movie will be the most popular at the city’s movie theaters the next weekend: an animated movie, an action movie, or a romantic comedy. Which group would best represent a sample population?
Every fifth person coming out of the high school.
Every fifth person in the mall’s food court at lunchtime.
Every fifth person coming out of the downtown grocery store at different times throughout the day.
Every fifth person walking down the street in several different locations throughout town at different times of day.
The group that would best represent the sample population is; D: Every fifth person walking down the street in several different locations..
What is the Sample Population?A sample population is simply a subset of the main population. Now, in this question we see that a poll is being taken on Wednesday to predict which movie will be the most popular at the city’s movie theaters the next weekend.
Now, since we are looking for sample population, the one that will best represent it will be Option D. This is because - Different locations through out the city at Different time has maximum randomness.
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What is the midpoint of AB need help?
Answer:
(0,0)
Step-by-step explanation:
The midpoint is (0,0) because as you can see in the graph the middle would be (0,0). However, if point A moved even one step further or closer the midpoint will also shift
Which table represents a linear function?
On a coordinate grid the x axis represents the age of a plant in weeks, and the y axis represents the height of the plant in inches. After 2 weeks, the plant was 4 inches tall. Write the coordinates.
Answer: (2,4)
Step-by-step explanation: The coordinates are 2,4
what is 56-29 f-ree points
Answer:
27
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
Thanksss
A bag contains 9 red marbles, 8 green marbles and 12 blue marbles.
What is the probability of picking a green or red marbles? *
Answer:
17/29 or 58.6%
Step-by-step explanation:
P(G or R) = 8/29 + 9/29 = 17/29
Nicole bought a meal in a town that has no sales tax. She tips 20%. Select all the meals Nicole could buy for less than $18 total.
a: $18
b: $15.50
c: $5
d: $17
e: $10
f: $12.50
Answer:
E. $10.................
-2/7 + 1/3 , what would this be?
Answer:
1/21Step-by-step explanation:
-2/7 + 1/3 = 3(-2) / 3(7) + 7(1) / 7(3) = -6/21 + 7/21 = (-6 + 7) / 21 = 1/21Answer:
[tex]\sf \dfrac{1}{21}[/tex]
Step-by-step explanation:
[tex]\textsf{To calculate}-\dfrac{2}{7}+\dfrac{1}{3}, \: \textsf{ first make the denominators the same}.[/tex]
[tex]\textsf{Adjust the fractions based on their lowest common multiplier}:[/tex]
[tex]\implies -\dfrac{2}{7} \cdot \dfrac{3}{3} + \dfrac{1}{3} \cdot \dfrac{7}{7}[/tex]
[tex]\implies -\dfrac{2 \cdot 3}{7 \cdot 3} + \dfrac{1 \cdot 7}{3 \cdot 7}[/tex]
[tex]\implies -\dfrac{6}{21}+\dfrac{7}{21}[/tex]
[tex]\textsf{Apply the fraction rule} \quad \dfrac{a}{c}+\dfrac{b}{c}=\dfrac{a+b}{c}:[/tex]
[tex]\implies \dfrac{-6+7}{21}[/tex]
[tex]\textsf{Add the numbers of the numerator}:[/tex]
[tex]\implies \dfrac{1}{21}[/tex]
Learn more about fractions here:
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