Answers
Related Questions
The number of bacteria on a piece of toast triples every
hour. If there is only one bacteria cell now, how many
will there be in 24 hours?
HELP PLZZZ WILL MARK BRAINLIEST!!!
Answers
Answer:
You begin with 1 bacteria, and after 1 hour it has tripled so you now have 1 x 3=3.
Next hour, it triples again so you now have 1 x 3 x 3=9
You can see the pattern shows that the number of bacteria is multiplying every hour by a factor of 3. An exponent denotes how many times we are multiplying a number by itself, for example: 34 means we are multiplying the number 3 a total of 4 times (3 x 3 x 3 x 3).
Therefore the question is requiring us to triple the number of bacteria every hour for 24 hours, which means we are multiplying by 3 a total of 24 times. This gives us:
n x 324 where n is the number of bacteria you begin with.
Since you begin with 1 bacteria, the solution is 1 x 3 to the power 24 and u will get ur answer
Sean runs 2/3 of a mile in 10 minutes. at this rate, how many miles can Sean run in 30 minutes? Explain how you found this answer. Please I need it quick!
Answers
Answer:
2 miles.
Step-by-step explanation:
In this case, we would multiply the numerator by 3 since we know that it takes him 10 minutes to run 2/3 of a mile. So, 2x3 = 6. Which gives us 6/3. Simplified that would be 2 miles. Hope this helps!
Please answer all
1.Let y be a random variable that has the standard normal distribution. If P(y
Select one:
a. 0.8416
b. 0.5244
c. 0.1584
d. -0.5244
2.Let y be a random variable that has the standard normal distribution. If P(-a
Select one:
a. 0.3255
b. -0.3255
c. 0.6745
d. 0.000
3.Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. If 15 students are randomly selected, find the probability that the mean of their test scores is at most 40.
Select one:
a. 0.4749
b. 0.5250
c. 0.0251
d. 0.9749
4. Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get at most 40 in the test?
Select one:
a. 0.6935
b. 0.3065
c. 0.6730.
d. 0.3270
5. Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get a score from 36 to 40 in the test?
Select one:
a. 0.1981
b. 0.1751
c. 0.1684
d. 0.8249
6.For a given x score, its standardized score z = (x - μ)/σ is
Select one:
a. the probability between that score and the mean
b. negative for values below the mean
c. the number of means that score is from the standard deviation
d. not changed by the addition of one more score to the data set
7.Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get at least 37 in the test?
Select one:
a. 0.4588
b. 0.5412
c. 0.4361
d. 0.5639
8.For the standard normal distribution,
Select one:
a. P(0< z <2) = 2 P(0< z <1)
b. P(0< z < 1) = 0.3413
c. P(z = 1.00) = 0.3413
d. P(-1 < z < 0) = -P( 0< z <1)
9.Let y be a random variable that has the standard normal distribution. The value of P(-1.5 < y < 0) is
Select one:
a. 0.5668
b. 0.4332
c. 0.9332
d. -0.4332
10.Let y be a random variable that has the standard normal distribution. The value of P(y<-1.5) is
Select one:
a. 0.0668
b. 0.4332
c. -0.0668
d. 0.9332
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Answer:
there was many questions an this much questions we don't have time
please help me i have no clue what to put!!!
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Answer:
c
Step-by-step explanation:
Its C the answer is c
What is x?
33x+2=68
Give brainliest
Answers
Answer:
2
Step-by-step explanation:
subtract 68 by 2, then divide by 33
SUMA
RESTA
657 + 234
895 - 653 =
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Answer:
891
242
Step-by-step explanation:
3m² – 17m + 10 factoring polynomials
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(3m-2) x (m-5)
Need help ASAP
questions in the pics i have sent
Answers
Answer:
Step-by-step explanation:
Picture 1
In right triangle ABC,
Side AB is the opposite side of angle C.
Picture 2
In triangle MKL,
tan(∠M) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
= [tex]\frac{KL}{KM}[/tex]
= [tex]\frac{15}{8}[/tex]
Option (1) is the answer.
Picture 3
In ΔXYZ,
sin(∠Z) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{XY}{XZ}[/tex]
For the length of XY we will apply Pythagoras theorem in ΔXYZ,
XZ² = XY² + YZ²
XY² = XZ² - YZ²
= (40)² - (32)²
XY = √576
= 24
sin(Z) = [tex]\frac{24}{40}[/tex]
sin(Z) = [tex]\frac{3}{5}[/tex]
Picture 4
In right triangle DEF,
Cos(D) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{EF}{DF}[/tex]
= [tex]\frac{75}{72}[/tex]
= [tex]\frac{25}{24}[/tex]
Picture 5
In ΔABC,
tan(63°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(63°) = [tex]\frac{BC}{AB}[/tex]
AB = [tex]\frac{BC}{\text{tan}(63)}[/tex]
AB = [tex]\frac{8}{\text{tan}(63)}[/tex]
AB = 4.0762 ≈ 4 m
Option (3) will be the answer.
Can someone solve this step by step?
Answers
Answer:
2 9/14
Step-by-step explanation:
first we must make 1/6 and 3/7 have common demoniaters! (or however u spell it)
1/6 x 7/7 = 7/42
3/7 x 6/6 = 18/42
7/42 + 18/42 = 25/42
2/7 x 6/6 = 12/42
25/42 + 12/42 = 37/42
37/42 + 7/42 = 44/42
44/42 + 18/42 = 62/42
62/42 + 12/42 = 74/42
5/7 x 6/6 = 30/42
74/42 + 30/42 = 104/42
104/42+7/42 = 111/42
111/42 = 2 9/14
plz help?
Find the value of x in this proportion.
621=10x
Answers
Answer:
x = 62.1
Step-by-step explanation:
Note the equal sign in this equation, what you do to one side, you do to the other. Isolate the variable, x, by dividing 10 from both sides of the equation:
[tex]621 = 10x\\\\\frac{621}{10} = \frac{10x}{10} \\\\x = \frac{621}{10} \\x = 62.1[/tex]
Answer:
x = 62.1
Step-by-step explanation:
UNDERSTAND
There are eight cups of ice cream in a large container of Berry
Blast ice cream. Each scoop of ice cream is 1/2 of a cup. How
many scoops of ice cream are in an entire container of Berry Blast
ice cream?
Answers
Explanation: 8 divided by 1/2, you switch the equation to multiplication, so now it’s 8x1/2. You turn the 8 into 8/1, so now your equation looks like 8/1x2/1 which gives you 16/1 which is also 16.
Find the x- and y-intercepts of the graph of 7x - 5y = 25. State your answers as
whole numbers or as improper fractions in simplest form.
x-intercept:
y-intercept:
Submit Answer
Answers
7(0)-5y=25
0-5y=25
y=25/-5
y=-5 (0,-5)
7x-5y=25
7x-5(0)=25
7x=25
x=25/7
x=3.57 for whole number =4
The line passes through (6,6) and (-2,2)
Answers
Step-by-step explanation:
y-y1=m(x-x1)
m=y2-y1/x2-x1
A boat leaves the entrance to a harbor and travels 150 miles on a bearing of N 59° E. How many miles north and how many miles east from the
harbor has the boat traveled?
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Distance N = 150 sin (31°) = 77.25
Distance E = 150 cos(31°) = 128.58
cos53=x/150
x=90.3 miles north
y=miles East
sin53=y/150
y=119.8 miles East
If y=x2? - 5, find f(-4).
A-9
B-21
O
C 11
D -13
Answers
y = x²-5
f(x) = x² - 5
f(-4) = (-4)² - 5
f(-4) = 16 - 5
f(-4) = 11
Answer : C.11give me brainliest pls hehe
For every 5 campers who voted for hot dogs, there were 4 who voted for Spaghetti. If there were 72 campers in all, how many voted for hot dogs?
Answers
Answer:
Step-by-step explanation:
5+4 = 9
72/9 = 8
8×5 = 40 voted for hot dogs.
The number of campers who voted for hotdogs is 40 campers
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of campers who voted for hot dogs = 5 campers
Let the number of campers who voted for sphagetti = 4 campers
Now , the total campers = 5 + 4
= 9 campers
5 out of 9 campers vote for hot dogs
So ,
The total number of campers = 72 campers
The equation will be ,
The total number of campers who voted for hotdogs =
( number of campers who voted for hot dogs / the total campers ) x 72
The total number of campers who voted for hotdogs = ( 5 / 9 ) x 72
= 5 x 8
The total number of campers who voted for hotdogs = 40 campers
Hence , The number of campers who voted for hotdogs is 40 campers
To learn more about equations click :
https://brainly.com/question/10413253
#SPJ2
if the diameter of a circle is 65 what is the area
Answers
Answer:
(4225/4)pi units^2
Step-by-step explanation:
So we need to know the area of a circle formula to find the answer to this question
the formula is A = r^2(pi)
So we have the diameter but we need the radius. The radius is half the diameter so r = 65/2
Now we can plug the radius into the area formula
(65/2)^2*pi =
(4225/4)pi units^2
Answer:
3318.31
Step-by-step explanation:
Write an equation in point-slope form for the given point and slope:
Point: (4, -6)
Slope: 2
Please show me how to do this, thanks.
Answers
Answer:
y=2x-14
Step-by-step explanation:
y=mx+b(m is slope)
we know
y=2x+b
so if you plug in the values for the points you get
-6=4(2)+b
-6=8+b
b=-14
so then the complete equation would be
y=2x-14
What is the value of this expression?
1/6 ÷ 12
Answers
Answer:
0.01388888888
Step-by-step explanation:
Answer:
[tex] \frac{1}{72} [/tex]
Step-by-step explanation:
[tex] \frac{1}{6} \div 12[/tex]
[tex] = \frac{1}{6} \times \frac{1}{12} [/tex]
[tex] = \frac{1}{72} [/tex]
Hence required answer is 1/72
Also in decimal conversion it will be 0.0138888889
the height in feet of a shirt launched from a t shirt cannon high in the stands at a football stadium is given by h(x) =-16x^2 + 64x + 80 where x is the time in seconds after the t shirt is launched. A.)At what height is the t shirt launched?
B.) what will be the height after 3 seconds?
Answers
Answer:
x=2sec
H=144m
Step-by-step explanation:
Can you help me solve this please :/
Answers
Answer:
2√3
Step-by-step explanation:
In a special right triangle called the 30-60-90 triangle, the ratios of the side lengths are x-x√3- 2x respectively. This means that the side opposite to the 60 degrees is x√3 and the side opposite to the 30 degrees is x.
Since the side opposite to the 60 degrees is 6, x√3=6
x√3=6
x=6/√3
rationalize the denominator:
6√3/3
simlify
2√3
so the answer is the third one. 2√3
the graph of which function will contain the point(2,10)
Answers
Answer:
point (2 , 10)
Y= 5X
10 = 5(2)
10= 10
Equation R: y = -2x + 10
Equation S: y = 3x - 20
What is the solution ( , )
Answers
Step-by-step explanation:
3x -20= -2x +10
or,5x=30
or,X=30/5
or,X=6
Y= -2×6 + 10
= -2
therefore solution is (6, -2)
Linda Rove is paid $6.39 for each table she assembles. Last week she assembled the following number of tables. What was Rove’s pay for the week?
Answers
Answer:
6.39 x # of tables assembled
Step-by-step explanation:
Well you didn't tell us the number of tables she assembled that week, but the equation would be 6.39 x the # of tables she assembled.
Use the sequence {0.3, 0.03, 0.003, 0.003, ... } to answer the question.
What is the explicit rule that describes the sequence?
1 an = 0.3(0.01)(n-1)
2 an = 0.3(0.001)(n-1)
3 an = 0.3(10)(n-1)
4 an = 0.3(0.1)(n-1)
Answers
Answer:
2 an ? Im pretty sure hope it helped
Answer:
an = 0.3(0.1)^(n - 1)
Step-by-step explanation:
so it's number 4 ;)
ratio of 7 to 3 in fraction
Answers
Answer:
The answer is 2 and 1/3
Ratio: 7 : 3
Fraction: 2⅓
Helps pls...... help help help
Answers
Answer:
IQR = 10
Step-by-step explanation:
1. Find the median (middle data point.)
2. Find the median of the upper quartile (70 - 80.)
3. Find the median of the lower quartile. (60 - 70.)
4. Subtract the lower quartile from upper quartile.
1. median of the data = 70
2. median of Q2 = 75
3. median of the Q3 = 65
4. 75 - 65 = 10
IQR = 10
HELP ASAP PLS! The ratio of bows to headbands of Monique’s hair accessories is 8:4. Select all true statements.
A. For every 8 hair accessories, 4 are bows.
B. For every 8 bows, there are 4 headbands.
C. For every 8 headbands, there are 4 bows.
D. For every 8 hair accessories, 4 are headbands.
E. For every 12 hair accessories, 4 are headbands.
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I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist I will mark u brainlist
Answers
Answer:
i belive the answer is A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
mark me brainlist plz :)
What is 600 minus 258?
Answers
Answer:
342
Step-by-step explanation:
Answer:
342
Step-by-step explanation:
600 - 258 = 342
Note:
Please mark as Brainliest! <3