A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100 What does the solution of this system indicate about the questions on the test? The test contains 4 three-point questions and 20 five-point questions. The test contains 10 three-point questions and 14 five-point questions. The test contains 14 three-point questions and 10 five-point questions. The test contains 20 three-point questions and 8 five-point questions.

Answers

Answer 1
x= # 3-point questions
y= # 5-point questions


QUANTITY EQUATION:
x + y= 24

VALUE EQUATION:
3x + 5y= 100

If we solved these two equations by elimination or substitution, we find x and y. I'm going to solve by elimination.


STEP 1:
multiply the quantity equation by -3 to eliminate the x variable and solve for y.

-3(x + y)= -3(24)
-3x - 3y= -72


STEP 2:
add the value equation and the step 1 equation together to eliminate the x term and solve for y.

3x + 5y= 100
-3x - 3y= -72
the x term is eliminated

2y= 28
divide both sides by 2

y= 14 5-point questions


STEP 3:
substitute the y value into either original equation

x + y= 24

x + 14= 24
subtract both sides by 14

x= 10 3-point questions



ANSWER: The test contains 10 3-point questions and 14 5-point questions.

Hope this helps! :)

Related Questions

according to the graph........

Answers

I would say the best answer is a but the whole thing is set up weird

The solution is:

H(w) gets very small when w gets very large .

What is graph?

In mathematics, the graph of a function f is the set of ordered pairs, where {\displaystyle f(x)=y.} In the common case where x and f(x) are real numbers, these pairs are Cartesian coordinates of points in two-dimensional space and thus form a subset of this plane.

Here, we have,

Considering the graph H(w),

As w gets larger, H(w) continues to approach a horizontal asymptote.

we know that,

A horizontal asymptote of a graph is a horizontal line y = b where the graph approaches the line as the inputs approach ∞ or –∞. A slant asymptote of a graph is a slanted line y = mx + b where the graph approaches the line as the inputs approach ∞ or –∞.

Hence, H(w) gets very small.

Therefore, the correct option is option D

Hence, The solution is:

H(w) gets very small when w gets very large .

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What is 15% of 90? I need help

Answers

Hello.

The answer is 
1. We assume, that the number 90 is 100% - because it's the output value of the task. 
2. We assume, that x is the value we are looking for. 
3. If 90 is 100%, so we can write it down as 90=100%. 
4. We know, that x is 15% of the output value, so we can write it down as x=15%. 
5. Now we have two simple equations:
1) 90=100%
2) x=15%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
90/x=100%/15%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 15% of 90

90/x=100/15
(90/x)*x=(100/15)*x       - we multiply both sides of the equation by x
90=6.66666666667*x       - we divide both sides of the equation by (6.66666666667) to get x
90/6.66666666667=x 
13.5=x 
x=13.5

now we have: 
15% of 90=13.5


Have a nice day
Hello there!


Your answer is 13.5




Explanation:


STEP 1: 1% of 90 = 90/100 = 0.9


STEP 2: 15% of 90 = 15 *  0.9 = 13.5




Here is another way to do it:


Explanation 2:


STEP 1: Write 15% as a decimal number: 15% = 15/100 = 0.15


STEP 2: Multiply 0.15 by 90: 0.15* 90 = 13.5




I hope I helped!


Let me know if you need anything else!
~ Zoe

What is 3 to the power of 2 over 3 equal to?

cube root of 9
square root of 9
cube root of 27
square root of 27

Answers

square root of 9 is your answer

Dirk can clean a playground in 5 hours. Geralyn can clean a playground in only 4 hours. Which of the following can be used to determine the amount of time it would take for Dirk and Geralyn to clean a playground together?

Answers

The answer is inthe pic

HURRYYYYY PLZ
Enter the values for the highlighted variables that show how to subtract the rational expressions correctly:
A
B
C
D
E
F
G

Answers

For a we have:
 x ^ 2 + 6x = x (x + a) = x (x + 6)
 a = 6

 For b we have:
 b = 2

 For c we have:
 x-c = x-6
 c = 6

 For d and e we have:
 bx-x + c = dx-x + e
 b = d = 2
 c = e = 6

 For f we have:
 dx-x + e = x (d-1) + e = x (2-1) + e = x + e = x + f
 e = f = 6

 For g we have:
 (x + f) / (x + 6) = (x + 6) / (x + 6) = g = 1
 g = 1

Are these ratios equivalent?

84,000 paintings for every 16,000 photographs

63,000 paintings for every 12,000 photographs

Answers

Yes they are the both equal 5.25 when divided

what is the value of B in the equation y ^ b ^ 4 equals 1 / y ^ 24

A) -20
B)-6
C)6
D)20

Answers

Step-by-step explanation:

y^b^4=1/y^24

y^b^4xy^24=1

b^4y^25=1

b^4=1/y^25

√b^4=√1/y^25

b=√1/y^25

It's B. -6

apparently i have to write at least 20 characters so,,,, sorry yall.

Find the area of the trapezoid.
A) 18 cm2
B) 22.5 cm2
C) 27 cm2
D) 45 cm2

Answers

Answer:

27 cm2

Step-by-step explanation:

The answer is 27 cm 2 because if you use length x base x height you would get your answer. So 6 x 3 x 3 = 54 and then if you divide that by 2 you would get 27

Answer:

the answer is C), 27 cm2

Step-by-step explanation:

Giovanni justifies whether the expression -4x-8 is equivalent to -2(x+1)-2(x+3)by letting x=3 in both expressions. What is the value of each expression when x=3

3 and -20

4 and 4

-20 and -20

3 and 4

Answers

For this case we have the following expressions:
 -4x-8
 -2 (x + 1) -2 (x + 3)
 Evaluating x = 3 in both expressions we have:
 -4 (3) -8 = -12 - 8 = -20
 -2 (x + 1) -2 (x + 3) = -2 (3 + 1) -2 (3 + 3) = -2 (4) -2 (6) = -8-12 = -20
 Answer:
 the value of each expression when x = 3 is:
 -20 and -20

Please help thank you.
Lacey's mom makes her a birthday cake in the shape of an "L" . Lacey loves frosting, so her mom covers the entire outside of the cake in frosting, even the bottom of the cake.

How much space does Lacey's mom cover in frosting?
And PLEASE explain.

Answers

Hello!

You can separate the shape into two rectangular prisms

prism 1 - 9, 2 ,4
prism 2 - 4, 2, 8

Since the frosting is on the outside of the cake you have to find the surface area

To find the surface area you use the equation

2(wl + hl + hw)

Put in the values you know

2(9 * 2 + 4 * 2 + 9 * 4)

multiply

2(18 + 8 + 36)

Add

2(62) = 124

Now you find the surface area of the second prism

2(4 * 2 + 2 * 8 + 4 * 8)

Multiply

2( 8 + 16 + 32)

Add

2(56) = 112

Now add the two surface areas to get the surface area of the whole shape

112 + 124 = 236

The answer is 236in squared

Hope this helps!

Answer:

220

Step-by-step explanation:

Lacey's mom makes her a birthday cake in the shape of an "L" . Lacey loves frosting, so her mom covers the entire outside of the cake in frosting, even the bottom of the cake.

How much space does Lacey's mom cover in frosting?

The surface area of the the cake is made up of rectangles. The formula for find the area of a rectangle is A = lw

We can divide the top of the cake into 2 rectangles.

The rectangle on the left is 12 inches by 4 inches.

A=lw

A=12*4

A=48

​  

There is a rectangle this size on the top and bottom of the cake, so we can multiply to find the area of both. 20*2=40

The rectangle on the right is 5 inches by 4 inches. We can use the formula A = lw to find the area.

​    

A=lw

A=5*4

A=20

​  

There is a rectangle this size on the top and bottom of the cake, so we can multiply to find the area of both.

48*2=96

Now we need to add in the area of the rectangles that make the sides of the cake. Let's look at the sides of the large rectangle first.

The total for these 3 surfaces is 48 .

Now let's look at the 3 remaining rectangles.

The total for these 3 surfaces is 36.

Now let's add all the surfaces together.

96+40+48+36=220

The surface area of Lacey's cake is 220 inches

if cos a = 3/5 in the first quadrant, what does cot a equal

Answers

Given that cos a = 3/5 and it is in the first quadrant :
then:
a=arccos 3/5
but
cot θ=1/tan θ
thus to evaluate our vale we shall obtain the value for height since
adjacent=3
hypotenuse=5
thus
using Pythagorean theorem:
c²=a²+b²
hence
5²=3²+b²
b²=25-9=16
b=4
thus
tan θ=opposite/adjacent
tan a=4/3
thus
cot a=1/(4/3)=3/4

Final answer:

To find cot a when cos a = 3/5 in the first quadrant, we first determine the length of the opposite side using the Pythagorean theorem, which gives us 4. Subsequently, cot a is calculated as the ratio of the adjacent to the opposite side, resulting in cot a = 3/4.

Explanation:

If cos a = 3/5 in the first quadrant, we use trigonometric identities to find cot a. First, recognize that in a right triangle, the Pythagorean theorem states a² + b² = c². Given cos a = adjacent/hypotenuse = 3/5, and the fact that we are in the first quadrant (where all trigonometric values are positive), we can solve for the opposite side using the Pythagorean theorem.

Let the opposite side be b, the adjacent side (corresponding to cos a) be 3, and the hypotenuse be 5. The equation becomes b² + 3² = 5² which simplifies to b² = 25 - 9 = 16, giving b = 4.

We know that cot a = adjacent/opposite = cos a / sin a. Thus, sin a = b / hypotenuse = 4/5. Therefore, cot a = 3/4.

Joy started with 2.75 gallons of milk. She used 1.5 pints to make mashed potatoes and another cup to make cookies. How much milk does Joy have left? Give your answers in three different way (using cups, pints, and gallons). SHOW WORK.

Answers

ok so,
2.75 gallons =22 pints

22 pints - 1.5=20.5 pints

20.5 pints =41 cups

41 cups - 1 cups= 40 cups

Answer= 40 cups or 20 pints or 2.5 gallons

For the situation, identify what information is given and what information you need to find, and define a variable for each unknown quantity.

A museum sold adult and child tickets for an upcoming event. There were 10 more child tickets sold than adult tickets. Child tickets cost $5, and adult tickets cost $8. The sales totaled $550. How many adult tickets were sold?

For the situation, identify what information is given and what information you need to find, and define a variable for each unknown quantity.

Answers

The unknown quantities are:

A = The number of adult tickets sold
C = The number of child tickets sold

Your equations could be:
8A + 5C = 550
C - 10 = A

The graph of linear equation A passes thru the points (-7,4) and (3,-10), while the graph of linear equation B passes thru the points (-7,4) and (5,11). which of these is a solution to the system of equations consisting of linear equation A and B

a. (-7,4)
b. (3,-10)
c. (5,11)
d. (7,4)
show work and i need really bad

Answers

Is it A since it passes thru both equations

We want to find the solution for the system of linear equations such that we know some points of the lines. We will see that the correct option is A: (-7, 4).

Systems of linear equations.

When we have a system of equations the solutions are the points where the graphs of the equations intercept.

Here we know that we have two lines:

Line A passes through (-7, 4) and (3, - 10)Line B passes through (-7, 4) and (5, 11).

So we already can see that both lines pass through the point (7, -4), meaning that the lines do intercept at that point, so the solution of the system is that point (we know that we don't have more solutions because lines intercept only once).

So the correct option is A: (-7, 4)

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how many milligrams are in 0.5ml of a 1:1000 solution

Answers

1000 mg = 1g

1 ml = 1g

1/1000 *.5ml* 1g/1ml * 1000mg/1g = .5 mg
Final answer:

To find the number of milligrams in 0.5 mL of a 1:1000 solution, we can set up a proportion: 1 mg / 1000 mL = x mg / 0.5 mL. Cross-multiplying, we get: x mg = (1 mg / 1000 mL) * 0.5 mL. Therefore, there are 0.0005 milligrams in 0.5 mL of a 1:1000 solution.

Explanation:

To determine the number of milligrams in 0.5 mL of a 1:1000 solution, we need to understand the ratio. In a 1:1000 solution, the first number represents the amount of solute (in this case, milligrams) and the second number represents the amount of solvent (in this case, milliliters). So, in a 1:1000 solution, there is 1 milligram of solute in 1000 milliliters of solvent.

To find the number of milligrams in 0.5 mL, we can set up a proportion:

1 mg / 1000 mL = x mg / 0.5 mL

Cross-multiplying, we get:

x mg = (1 mg / 1000 mL) * 0.5 mL

x mg = 0.0005 mg

Therefore, there are 0.0005 milligrams in 0.5 mL of a 1:1000 solution.

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A number j minus 14 is less than −21.

Answers

If you are supposed to write the inequality, it would be
j - 14 < -21
j represents the number j
minus 14 is taking away or subtracting 14
together, they are less than -21, which is why < is used
A number j minus 14 is less than −21
j - 14 < -21

if you need to find j then
j - 14  < -21
  +14   +14
j < -7

hope it helps

Numbers 37 and 39. I’m not sure how to solve them

Answers

37. 3/8 hours

You can get this by dividing 3/4 by 2. 

The key to doing these types of problems is remembering that if they are going faster by that much, it doesn't matter what the speeds are. You can treat it as if one is standing still and the other is going 2mph. 

Jennifer works in a flower shop on Saturday she started work at 8:45 a.m. she spent 3/4 hours at lunch she finished at 4:15 p.m. how many hours did she work on Saturday?

Answers

8.45am to 3.45pm = 15 - 8 = 7 hours

3.45pm to 4.15pm = 30 minutes

3/4 hours = 45 minutes

7 hours 30 mins minus 45 minutes = 6 hours 45 minutes

Answer : She worked 6 hours 45 minutes on Saturday.

Hope this helps. - M

What is the approximate volume if this cone 9cm by 15cm

A. 1272cm3
B.2120cm3
C.4239cm3
D.6359cm3

Please Hurry!

Answers

Hello there, and thank you for asking your question here on brainly.

Short answer: A. 1272 cm
³

Why?

When finding the volume of a cone, you use the formula V = 
πr²h/3. R = 9, H = 15. V = π9²15/3 9² = 81 | 15 / 3 = 5 | 3.14 * 81 = 254.34 | 254.34 * 5 = 1271.2 1272 rounded.

Hope this helped you! ♥

Final answer:

The approximate volume of a cone with a radius of 9 cm and a height of 15 cm, calculated using the formula for the volume of a cone, is closest to option A, which is 1272 cm³.

Explanation:

To find the approximate volume of a cone, we use the formula V = 1/3 πr²h, where V is the volume, r is the radius of the base, and h is the height of the cone. Given that the dimensions provided are 9 cm for the radius and 15 cm for the height, the calculation is as follows:

V = 1/3 π (9 cm)² (15 cm) = 1/3 π (81 cm²) (15 cm)

Now multiply these values:

V = 1/3 π (1215 cm³) ≈ 1/3 (3817.005 cm³) ≈ 1272.335 cm³

The approximate volume of the cone is therefore closest to 1272 cm³, which makes the correct answer A. 1272cm³.

‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️Please please help quickly!

I have been waiting for over a half our and still no one has helped!!!

Please only answer if you KNOW you have the correct answer!!!

Thank you so much in advance!

Answers

It's actually c hoped this helped

The equation for set B can be written as
  y = x + 2
That is a linear association with a slope of +1 (positive).

The correct choice is ...
  Set B

LAST QUESTION!! PLEASE HELP!

Answers

7. previously answered in another question, but last choice is correct

8.  yes a diameter is a chord. A chord is any line that connects 2 points on a circle

Anthony observes that when people are leaving class, about 50% turn left and about 50% turn right. Anthony wants to estimate the probability that fewer than 3 of the first 4 students will turn left when leaving class tomorrow. To do this, he lets H represent turning left when leaving class and T represent turning right. He then flips a coin 4 times, recording the results. He repeats this process for a total of 20 trials. HHTT THHT HTTT HTHH HHTT HTHT THTH TTHH HHHH HTTH HHHT TTHT THHH THTH HHTT HTTT HTTH HHTT HTHH HHTH Drag and drop the correct fraction to the box to estimate the probability, using this simulation. Estimated probability that fewer than 3 of the first 4 students leaving class tomorrow will turn left:

Answers

The probability is 7/10.

There are 14 outcomes in this simulation with fewer than 3 left turns, out of 20 times the simulation was run:
14/20 = 7/10

The fact that Anthony repeats the test [tex]n[/tex] times doesn't change anything, because he already know that you have a 50/50 chance of turning left of right.

Given that, Anthony observes that when people are leaving class, about 50% turn left and about 50% turn right.

What is the probability?

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

H represent turning left when leaving class and T represent turning right,

Both of them have a 50% probability of happening and he wants to know the probability of less than 3 turn left so we want to know the probability for only one to turn left and the probability for only two.

Only one:

If you use the fact that we have a binomial distribution, then the possibility that only one turns left is:

So, [tex]P(1)=\frac{4!}{3!} \times0.5^{4[/tex]

= 4×0.0625 = 0.25

Only two with the same reasoning.

[tex]P(2) = \frac{4!}{(2!\times2!)} \times0.0625=6\times0.0625 = 0.375[/tex]

Here you can see that the probability is bigger because here are mass  combinations that in the previous case.

So the total probability is 0.25 + 0.375 = 0.625.

The fact that he repeats the test [tex]n[/tex] times doesn't change nothing, because he already know that you have a 50/50 chance of turning left of right.

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The school is 625 meters far from Alex house. It took him 15 minutes to go from home to school, and run back to home in 10 minutes. What was Alex's average speed?

Answers

It is given in the question that

The school is 625 meters far from Alex house. It took him 15 minutes to go from home to school, and run back to home in 10 minutes.

Total distance is 625 meters and total time taken is

[tex] (10+15) minutes=25minutes [/tex]

Average speed is

[tex] \frac{total \ distance \  travelled}{total \ time \ taken} [/tex]

[tex] = \frac{625}{25}meter/minute = 25 meter/minute [/tex]

Answer:

25 minutes

Step-by-step explanation:


when factored completely,x³-13x²-30x is

Answers

Answer:

[tex]x(x+2)(x-15)[/tex]

Step-by-step explanation:

we have

[tex]x^{3}-13x^{2}-30x[/tex]

step 1

Factor x

[tex]x^{3}-13x^{2}-30x=x(x^{2}-13x-30)[/tex]

step 2

Find the solutions of [tex](x^{2}-13x-30)[/tex]

Complete the square

[tex](x^{2}-13x)=30[/tex]

[tex](x^{2}-13x+6.5^{2})=30+6.5^{2}[/tex]

[tex](x^{2}-13x+42.25)=72.25[/tex]

[tex](x-6.5)^{2}=72.25[/tex]

square root both sides

[tex](x-6.5)=(+/-)8.5[/tex]

[tex]x=6.5(+/-)8.5[/tex]

[tex]x1=6.5(+)8.5=15[/tex]

[tex]x2=6.5(-)8.5=-2[/tex]

so

[tex](x^{2}-13x-30)=(x+2)(x-15)[/tex]

substitute

[tex]x^{3}-13x^{2}-30x=x(x+2)(x-15)[/tex]

[WILL GIVE BRAINLIEST]
15 machines work at the same rate.
Together, the 15 machines can complete an order in 8 hours.
3 of the machines break down after working 6 hours. The other machines carry on working until the order is complete.
In total how many hours does each of the other machines work

Answers

your answer is simple times 6 to 3 to get 18 then 15 by 8 to get 96 then add up everything to get 114

∠AZB and ∠CZB are supplementary. The m∠AZB = 2x - 4 and m∠CZB = 8x + 4. What is the measure of each angle?

A. m∠AZB = 32° and m∠CZB = 148°
B. m∠AZB = 12° and m∠CZB = 76°
C. m∠AZB = 43° and m∠CZB = 22°
D. m∠AZB = 68° and m∠CZB = 292°

Answers

The answer is A because when you add the angles to get they equal 180. Then just solve for x.

The drawing isn't to scale
The correct answer is A. m∠AZB = 32° and m∠CZB = 148°

a car model comes with the following choices: 9 colors,with or without air conditioning,with or without sunroof ,with or without automatic transmission ,with or without a spoiler,and with or without anti lock brakes. in how many ways can it be ordered

Answers

There 288 ways the car can be ordered.

What is Combination?

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant.

Given:

There are five Categories as

with or without air conditioning,with or without sunroof ,with or without automatic transmission ,with or without a spoiler,and with or without anti lock brakes.

Total colors for car= 9

Now, the possible number of ways can it be ordered

= 9 x 2 x 2 x 2 x 2 x 2

= 9 x 32

= 288 ways

Hence, there 288 ways the car can be ordered.

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Final answer:

To determine the number of ways a car model can be ordered based on given feature choices, multiply the number of options for each feature. In this case, it's 9 colors multiplied by 2 options for each of the 5 binary features (with or without), leading to a total of 288 different combinations.

Explanation:

To determine the number of different ways a car can be ordered based on the given options, we simply need to multiply the number of choices available for each feature.

First, there are 9 colors. Then for each feature such as air conditioning, sunroof, automatic transmission, spoiler, and anti-lock brakes, there are two options available: with or without.

So, for each of these five binary options (yes or no), we multiply the number of choices by 2 (with or without).

Colors: 9 choices

Air conditioning: 2 choices

Sunroof: 2 choices

Automatic transmission: 2 choices

Spoiler: 2 choices

Anti-lock brakes: 2 choices

Now, we can calculate the total number of ways the car can be ordered:

Total ways = 9 (colors) * 2 (air conditioning) * 2 (sunroof) * 2 (automatic transmission) * 2 (spoiler) * 2 (anti-lock brakes)

Total ways = 9 * 25 = 9 * 32 = 288.

Therefore, there are 288 different combinations in which the car can be ordered.

What is the domain of the function y=3\sqrt(6x+42)

Answers

(-infinity sign,-7) (-7, infinity sign)

A student has successfully passed 60 percent of the 20 quizzes he has written so far. If the student writes 50 quizzes during the year, and successfully passes 80 percent of the remaining quizzes, what is his percent success rate for all his quizzes for the entire year? help

Answers

His percent success rate is 72%

Answer:

74.29%

Step-by-step explanation:

A student passed 60%, or a proportion of 0.60 of the 20 quizzes he's written so far. This means he has passed [tex]0.60*20=12[/tex] quizzes so far.

Now he has written 50 quizzes and passed 80% of them, or [tex]50*.8=40[/tex] quizzes.

To find the success rate, take the number of quizzes passed and divide by total number of quizzes.

[tex]\frac{Passed}{Total}[/tex]=[tex]\frac{12+40}{20+50}[/tex]=[tex]\frac{52}{70}[/tex]=.7429

To get a percentage, multiply this proportion by 100 to get 74.29%

there are 50 instruments in lincoln middle orchesha if 1/2 of the instruments are strings. how many strings are in lincoln orchestra

Answers

25 strings bc 50/2= 25
Other Questions
Earth's atmosphere is unique among the planets because it contains a large amount of ___________. A)oxygen B)helium C)methane D)carbon dioxide How could the situation in Haiti be improved? Which act created nationally chartered banks and circulated notes backed by the federal government? A) Free-Banking ActB) National Banking ActC) Federal Reserve Act You work for Synthorx, creating synthetic DNA. You create a sequence on one strand of CTXAGGC. What is its complimentary strand? anyone that has diabetes please answer these questions please help urgent1.When did you find out that you have diabetes?2.How often do you have to test your glucose levels or you dont?3.What was your reaction when you found out you had diabetes?4.Do you follow a special diet?5.Did diabetes prevent you from doing some activities?6.What type of diabetes do you have?7.How has it impacted your life?8.How did your family feel and handle the situation?9.What advice could you give to the younger people of the world today in order to make a difference? How do bank loans help the nations economy? Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. The researchers grew one type of bacteria in twenty-four identical covered petri dishes. Then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. They left the remaining six petri dishes closed as a control group. When the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. The researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. Which statement best explains why the researchers conclusion was not justified? the number of bacteria in a container increases at the rate of R(t) bacteria per hour. If there are 1000 bacteria at time t=0 , which of the following expressions gives the number of bacteria in the container at time t=3 hours? Explain why the ratio 3 feet / 1 yard has a value of one A financial institution wishes to estimate the mean balance owed by its credit card customers. a random sample of 64 credit card customers was taken. according to the sample results, the average credit card balance is $600. the population standard deviation is known to be $200. construct a 96 percent confidence interval estimate of the true mean population credit card balance for this financial institution. A Elena le ____________ (gustar) leer los libros, pero no le ___________ (interesar) leer las revistas. gusta, interesa gustan, interesan gusta, interesan gustan, interesa What is the point-slope equation of the line with a slope 4/3 that goes through the point (-4,6)? how did congress reinforce its power with the states that seceded La ciudad de mxico es una de las ciudades ms grandes del mundo y con ms __ . castillos habitantes el bosque de chapultepec, ubicado en el centro de la ciudad de mxico, es uno de los lugares ms __ de la ciudad. solitarios concurridos el metro de la ciudad de mxico es una amplia red de trenes y tneles que recorren __ la ciudad de mxico y __ la vida a sus habitantes. toda; facilitan parte de; dificultan los cuatro millones de personas que diariamente transporta el metro de la ciudad de mxico slo son __ por los sistemas de transporte de tokio y mosc. recorridos superados en las estaciones __ los pasajeros pueden cambiar de trenes para llegar fcilmente a su destino. de transbordo subterrneas algunas lneas del metro de la ciudad de mxico no son subterrneas, sino superficiales, es decir, __ al nivel de la calle. paran circulan en algunas estaciones del metro de la capital de mxico hay __ . exposiciones de arte danzas indgenas para las personas mayores de sesenta aos el servicio de transporte del metro es totalmente __ . inseguro gratuito (3 Points)Which statement correctly compares radio waves and microwaves?A. Radio waves have a higher frequency than microwaves.B. Radio waves have shorter wavelengths than microwaves.C. Radio waves have lower radiant energy than microwaves.D. Only radio waves are used in communication. in the 1950s, what was the status of most countries in Eastern Europe? How does the graph of y=1/2(x+4)^2compare to the graph of y=(x-1)^2 -3? 2.Write a brief essay explaining which constitutional issue described above you think was most serious for the countrys well-being and why. Conductor insulation must be approved for the _______ of use? Because it locates cellular devices, assigns frequencies, transmits signals to the correct sites, the ___ is probably the most important part of any cellular network.