275 students and teachers take a train trip to the Grand Canyon if one train car holds 75 people, how many train cars will it take for the whole group?

Answer:

2^-2

Step-by-step explanation:

According to the properties of integer exponents, 1/a^n = a^-n.

So 1/2 x 1/2 = 1/2^2 = 2^-2.

1/2 x 1/2 can be rewritten as the exponential expression 2^-2.

Edmentum answer

The expression 1/2 × 1/2 can be written as 2⁻² in the exponential form with the base 2.

Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.

Given expression is 1/2 × 1/2.

We have to write the expression in an exponential form with the base 2.

1/2 × 1/2 = (1/2)²

             = 1 / 2²

We have the rule for exponentiation 1 / aᵇ = a⁻ᵇ

1/2 × 1/2 = 2⁻²

Hence the exponential form of the given expression with the base 2 is 2⁻².

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Answer:

(2x-1)(x-2)(x+5) this is it factored.

It is a polynomial.

Answer:

1. 115. If q=4, then the equation tells us that 0.1d+(0.25)⋅4=12.5. Subtracting 1 from both sides gives 0.1d=11.5, so d=115.

2. 100. If q=10, then the equation tells us that 0.1d+(0.25)⋅10=12.5. Subtracting 2.5 from both sides gives 0.1d=10, so d=100.

3. Yes. If you know the number of quarters, then you can determine the number of dimes from the equation. We can even write the equation in a way that shows this: d=125−2.5q. The expression 125−2.5qrepresents the output—it is the rule that determines the output d from a given input q.

Answer:

1.2.4

2. -8

3. -5-3

4.10+12+14

5.-10-3

6. 2+2=4

7.5+3=8

Answer:

D

Step-by-step explanation:

Answer:

its D

Step-by-step explanation:

Answer:

The first term has 12 boxes shaded. Each term after that adds 4 more boxes.

To get from figure 1 to figure 35, you have to add four 34 times.

So Figure 35 will have 12 + (34)(4) = 148 boxes.

Step-by-step explanation:

saw this on (x, why?)

Answer:

148 shaded blocks

Step-by-step explanation:

Answer:

Yukio will pay $2 per ounce for the confetti

Step-by-step explanation:

Divide 12 and 16 that equals 0.75 then multiply 0.75 by 2 four times. and you get 2

Answer:

-14

Step-by-step explanation:

if the temperature is 12 at the beginning and there is a -26 temperature change you subtract 12 by -26

12-(-26) = 14

or

you take 26 and subtract 12

26 - 12= -14

and now you have a temperature of 0 with -14 to go so you get -14

The temperature after the storm is = - 14 F

We have temperature at Wonder Lake which is 12 F and during a storm, the temperature changes by  - 26 F.

We have to determine the temperature after the storm.

A temperature of y degrees below zero means that the temperature of an area is equal to = - y degrees i.e., T = 0 - y = - y.

According to question -

Initial Temperature T(i) = 12 F

Let the final temperature T(f) = x

Change in temperature ΔT = T(f) - T(i) = x - 12

- 26 = x - 12

x = - 26 + 12

x = - 14 F

Hence, the temperature after the storm will be = - 14 F

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Answer:

Hypotenuse

Step-by-step explanation:

Base ² + perpendicular ² = Hypotenuse ²

in short we write H² = P² + B²

Hope this helps you.

Answer:

B is the variation of pythagorus theorem, when we want to remove the cube root we shall introduce the squares in both sides

Answer:

132

Step-by-step explanation:

the top rectangle is 28

the middle rectangle is 56

each of the triangles are 24

48+28+56

Answer:

132cm

Step-by-step explanation:

Answer:  1.56

Step-by-step explanation:

3 divided by 2 = 1.5

0.12 divided by 2 = 0.06

1.5 + 0.06 = 1.56

we know that s = 3, so plug it in.

P = 6(3)

P = 18

perimeter = 18 km

Answer:

P = 18

Step-by-step explanation:

s = 3

so put it into the equation:

P = 6*3

P = 18

perimeter = 18 km

Answer:

x=99+21

x=120.............

Answer:

14

19

20

Step-by-step explanation:

Answer: 12

Step-by-step explanation: y = 5x + 2. and x = 2

plug it in.

y is now equal to 5(2) + 2

5 x 2 = 10

10 + 2 = 12

y = 12

Answer:

A

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Simplify 1/3

Answer:

a

Step-by-step explanation:

Answer:

B

lanation:

3 will go into 6 2 times and three will go into one 3 times which equals 2/3so the answer is B

Answer:

B and C

Step-by-step explanation:

A = -25

B = 9

C = 9

D = -9

E = -25

Answer: b and c

Step-by-step explanation:

-8+17= 9

a. -(8+17)= -25

b. 17+(-8)= 9

c. -8+8+9= 9

d. 8+(-17)= -9

e. -8+(-17)= -25

hope this helps!

Answer:

Step-by-step explanation:

The equation for the relationship between the altitude and number of minutes will be y = -1.8t - 4.5.

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

Given that after 5 minutes of descending at a rate of 1.81 points, 8 meters per minute, he was 13.5 points, 5 meters below the ground.

The general equation of the line is y = mx + c. For the given situation the equation will be written as y = mt + c.

y = mt + c

y = -1.8t + c

-13.5 = -1.8 x 5 + c

c = -4.5

y = mt + c

y = -1.8t -4.5

Therefore, the equation for the relationship between the altitude and number of minutes will be y = -1.8t - 4.5.

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Answer:

3.14159265358

Step-by-step explanation:

1.77245385091 square

Answer:Find the water height for a weir that is 3 feet long and has flow of 38.4 cubic feet per second. SOLUTION: Therefore, the water height for the weir is 4 feet.

Answer:

the water height for the weir is 4 feet.

Step-by-step explanation:

Step-by-step explanation:

Many Factories were converted into ammunition factorys and weapon factorys to support the war effort

Answer:

20 units

Step-by-step explanation:

The Pythagorean Theorem states that:

                                [tex]a^{2} + b^{2} = c^{2} \\[/tex]

Now we can insert values into the equation.

                                      [tex]a = 15\\b = b\\c = 25\\[/tex]

Now we can plug these ☝ values into the Pythagorean Theorem:

                                  [tex]15^{2} + b^{2} = 25^{2}\\[/tex]

After we solve for [tex]b[/tex] we get:

[tex]b^{2} = 400\\b = 20[/tex]

Answer:

b = 20

Step-by-step explanation:

15 + b = 25

(you have to square each one)

15 x 15 = 225

b x b = b

25 x 25 = 625

625 - 225 = 400

[tex]\sqrt{400}[/tex] = 20

hope this helps

Answer:

Probability can best be seen as the total number of “successful” outcomes (non blue pants) divided by the total number of possible outcomes (all pants). Normally, you express probability as a fraction (6/10), a ratio (6:10), or a percentage (60%). You could also express the probability as .6, or 6 out of 10.

My thought process: There are 4 pair of blue pants and 6 pair of non-blue pants. When you pick, you have 4 chances (pants) out of 10 chances (pants) of getting blue, and, therefore, 6 chances (pants) out of 10 chances (pants) of getting “not blue”. That is 60%; 6:10; 6/10; .6; or 6 out of 10.

Answer:

c

Step-by-step explanation:

3x3 equals 9 so it will take 3 hrs to walk