simplify the expression​

Answer:

The answer is 2.

Step-by-step explanation:

Plug in the numbers into the expression.

(-1)^2+7/(-1)+5

1+7/-1+5

8/4 or 2

Answer:

8

Step-by-step explanation:

10 to big 16 to large 3 to small 8 just right

Answer:

S is the Dependent variable

M is the independent variable

Step-by-step explanation:

Hope this helps!

Answer:

In the equation s =5m + 8, s is the dependent variable, and m is the independent  variable. You can use the equation to create a list of ordered

pairs. The first number in the ordered pair is a value of the variable m.

The second number in the ordered pair is a value of the variable s . To

graph the equation, the variable m is graphed along the horizontal axis

and the variable s is graphed along the vertical axis. Two points on the

graph of s = 5m + 8 are ( 3, 23) and (8,48 ).

Answer:

The volume is [tex]2556657m^{2}[/tex]

Step-by-step explanation:

This problem brothers on the mensuration of solid shapes, a square based pyramid.

Given data

Volume v =  ?

length of base a=  230m

Height h=   145m

Since we are required to solve for the volume of a square based pyramid, the expression for he volume is

[tex]v= a^{2} *\frac{h}{3}[/tex]

Substituting our data into the formula we have

[tex]volume= 230^{2}*\frac{145}{3}[/tex]

[tex]volume= 52900*48.33\\volume= 2556657m^{2}[/tex]

Hence the volume of the stones needed is is [tex]2556657m^{2}[/tex]

25th Percentile: 7

50th Percentile: 11

75th Percentile: 15

     Answer:

Interquartile Range: 8

Answer:

I think it is easier to calculat the surface area with a net.

You get to see the 3d picture in 2d so it is easy to find the area of the shape.

Answer:

12^2 + 15^2 = 18^2

Step-by-step explanation:

If we have 3 sides of a triangle we can use the Pythagorean theorem to determine if the triangle is a right triangle

a^2 + b^2 = c^2

12^2 + 15^2 = 18^2

If this is true, then the triangle is a right triangle

Answer:

Step-by-step explanation:

i think it is b

Answer:

Step-by-step explanation:

sin 60 = h/12

h = 12sin60

h = 12* √3/2 = 6√3 cm

Answer:

3:2 and 21:14

Step-by-step explanation:

The same side on the larger and smaller cylinders is 30 and 20 respectively or 18 to 12

Simplify:

30:20 => 3:2

18:12 => 3:2

Therefore, the answer is 3:2

However, in addition you can multiply 3 by 7 to get 21 and 2 by 7 to get 14, so 21:14 also works

Answer:

They all have a mode

Step-by-step explanation:

Answer: All of them do

Explanation: I would check with your instructor on this one.

The mode is the number that appears most frequently in a data set.

In all these sets here, there is a number that appears most frequently.

However, there are two sets that have 2 modes.

These sets are 5, 1, 3, 1, 5 and -2, -2, -2, 2, 2, 2.

Answer:

INDIRECT!

see below

Step-by-step explanation:

A law that says that if the temperature is constant then  the volume of a fixed amount of a gas is inversely proportional to its pressure.If the pressure on a gas increases, the volume of the gas decreases because the gas particles are getting closer together.

The man working for  [tex]37[/tex] hours should be paid  [tex]\$ 120.25[/tex] .

Work is the effort applied to complete a task in specific time.

[tex]Work Done = Time\ Taken\ *\ Rate\ of\ Work[/tex]

We have,

Man paid for working [tex]8[/tex] hours [tex]=\$ 26[/tex]

So,

Man paid for working [tex]1[/tex] hours [tex]=\$ \frac{26}{8}[/tex]

And,

We are asked to find out;

Man paid for working [tex]37[/tex] hours [tex]=\$ \frac{26}{8}*37[/tex]

                                                     [tex]=\$ 120.25[/tex]

So, Man paid for working [tex]37[/tex] hours should be paid [tex]\$ 120.25[/tex] for his work.

Hence, we can say that the man working for  [tex]37[/tex] hours should be paid  [tex]\$ 120.25[/tex] .

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Answer:

3/5

Step-by-step explanation:

3/5 is the probability because there are 5 balloons. And there's 3 out of those 5.

Answer:

3/4

Step-by-step explanation:

Answer:

i did it

Step-by-step explanation:

Step-by-step explanation:

<ABD = arcsin 1/5 = 11.5 degree

so <DBC = 90 - 11.5 = 78.5 degree

BD = Square root (5^2 - 1^2) = 4.9

DC = 4.9 * tan 78.5 = 24 (rounded!)

AC = 1 + 24 =25

Answer: A. xy + 4x

Step-by-step explanation:

(x)(y + 4)

distribute the x to both terms

xy + 4x

hope this helps! :)

Answer:

A. xy + 4x

Step-by-step explanation:

(x)(y + 4)

distribute the x to both terms

xy + 4x

Answer:

EK = 1.

Step-by-step explanation:

Here we have KP = PE (tangents from outside the circle)

Therefore, 2KP = PE + 1 = KP + 1

Hence, 2KP - KP = 1 or KP = 1 = PE

Since KE is the base of triangle KPE, where  ∡ KPE = 60, and KP = PE, we have an isosceles triangle such that ∡PKE = ∡PEK

Hence, in ΔKPE, ∡KPE + ∡PKE + ∡PEK  = 180

Therefore, 60° + ∡PKE + ∡PEK  = 180

Hence, ∡PKE + ∡PEK  = 180° - 60° = 120°

Because ∡PKE = ∡PEK, (base angles of isosceles triangle), we have;

∡PKE + ∡PEK = 2·∡PEK = 120° which gives

∡PEK = 60° = ∡PKE

Therefore, ∡KPE = ∡PEK = ∡PKE = 60°

Hence, ΔKPE is an equilateral triangle and KP = PE = EK = 1

EK = 1.

Answer:

y > -4

Step-by-step explanation:

−2y<8

Divide each side by -2, remembering to flip the inequality since we are dividing by a negative

-2y/-2 > 8/-2

y > -4

Answer:

Last option

y > -4

Step-by-step explanation:

-2y < 8

Switch sides

-8 < 2y

-4 < y

Or

y > -4

Answer:

2 units up

Step-by-step explanation:

You're just taking the  entire graph of cos(x) and then adding 2 so it moves everything up.  If you added 2 to x BEFORE taking the cosine

(like y = cos (x+2) ), then you would shift it left 2.  Adding and subtracting from the x moves everything left or right.  Adding or subtracting at the end just moves it up and down.

The graph of y = cos x + 2 is the graph of the y = cos(x) shifted in ''2 units up.''

What is Translation?

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

Given that;

To find the graph of y = cos x + 2 is the graph of the y = cos(x) shifted in which direction.

Here, The function is,

⇒ y = cos x

Now, After translate 2 units up, we get;

⇒ y = cos x + 2

Thus, The graph of y = cos x + 2 is the graph of the y = cos(x) shifted in ''2 units up.''

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Answer:

100

Step-by-step explanation:

Because adjacent angles in a parallelogram are supplementary, angle 1 and 80 must add up to 180 degrees. Therefore, angle 1 is 180-80=100 degrees. Hope this helps!

Answer:

100

Step-by-step explanation:

Hope this helped!

Answer:

C--- 15% of all students in grade 6 at HACS are below grade level in math

Answer:

x(1/2)-5

Step-by-step explanation:

1 cup = 1/2 pint, so where it says 4 cups we'll just read 2 pints.

1.  In one show we serve 30 × 2 pints of small and 42 × 6 pints of regular.

Total = 30 × 2 + 42 × 6 =  60 + 252 = 312 pints

Answer: 312 pints

2. 8 pints per gallon, 2 gallons per container makes 16 pints per container.  

312 pints / 16 pints per container = 19.5 containers

We round up since we need a whole number of containers.

Answer: 20 containers

We can't really see question 3.

Answer:

Its addition I think so the answer would we 16.7399km for both trials

Step-by-step explanation:

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

Step-by-step explanation:

Step 1:  Solve using the first point

(2, 28)

[tex]28 = a(2)^3 + b(2)^2 + c(2) + d[/tex]

[tex]28 = 8a + 4b + 2c + d[/tex]

Step 2:  Solve using the second point

(-1, -5)

[tex]-5 = a(-1)^3 + b(-1)^2 + c(-1) + d[/tex]

[tex]-5 = -a + b - c + d[/tex]

Step 3:  Solve using the third point

(4, 220)

[tex]220 = a(4)^3 + b(4)^2 + c(4) + d[/tex]

[tex]220 = 64a + 16b + 4c + d[/tex]

Step 4:  Solve using the fourth point

(-2, -20)

[tex]-20 = a(-2)^3 + b(-2)^2 + c(-2) + d[/tex]

[tex]-20 = -8a + 4b - 2c + d[/tex]

Step 5:  Combine the first and fourth equations

[tex]28 - 20 = 8a - 8a + 4b + 4b + 2c - 2c + d + d[/tex]

[tex]8 = 8b + 2d[/tex]

[tex]8 - 8b = 8b - 8b + 2d[/tex]

[tex](8 -8b)/2 = 2d/2[/tex]

[tex]4 - 4b = d[/tex]

Step 6:  Solve for c in the second equation

[tex]-5 + 5 = -a + b - c + d + 5[/tex]

[tex]0 + c = -a + b - c + c + d + 5[/tex]

[tex]c = -a + b + d + 5[/tex]

Step 7:  Substitute d with the stuff we got in step 5

[tex]c = -a + b + (4 - 4b) + 5[/tex]

[tex]c = -a + b + 4 - 4b + 5[/tex]

[tex]c = -a - 3b + 9[/tex]

Step 8:  Substitute d and c into the first equation

[tex]28 = 8a + 4b + 2(-a - 3b + 9) + (4 - 4b)[/tex]

[tex]28 = 8a + 4b - 2a - 6b + 18 + 4 - 4b[/tex]

[tex]28 - 22 = 6a - 6b + 22 - 22[/tex]

[tex]6 / 6 = (6a - 6b) / 6[/tex]

[tex]1 + b = a - b + b[/tex]

[tex]1 + b = a[/tex]

Step 9:  Substitute a, b, and c into the third equation

[tex]220 = 64(1 + b) + 16b + 4(-(1 + b) - 3b + 9) + (4 - 4b)[/tex]

[tex]220 = 64 + 64b + 16b + 4(-1 - b - 3b + 9) + 4 - 4b[/tex]

[tex]220 - 100 = 60b + 100 - 100[/tex]

[tex]120 / 60 = 60b / 60[/tex]

[tex]2 = b[/tex]

Step 10:  Find a using b = 2

[tex]a = b + 1[/tex]

[tex]a = (2) + 1[/tex]

[tex]a = 3[/tex]

Step 11:  Find c using a = 3 and b = 2

[tex]c = -a - 3b + 9[/tex]

[tex]c = -(3) - 3(2) + 9[/tex]

[tex]c = -3 - 6 + 9[/tex]

[tex]c = 0[/tex]

Step 12:  Find d using b = 2

[tex]d = 4 - 4b[/tex]

[tex]d = 4 - 4(2)[/tex]

[tex]d = 4 - 8[/tex]

[tex]d = -4[/tex]

Answer:  [tex]a = 3, b = 2, c = 0,d = -4[/tex]

Answer:

No, there isn't enough information to prove that the lateral faces are rectangles

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: Second point is (0.833,0)

Step-by-step explanation:

1. To determine slope you must use this formula Y= Mx + B

- M is the slope (positive or negative)

- B is the y-intercept

2. To find y-intercept you use (0, B)

3. M = -6/1

- 6 units down and 1 unit to the right since the slope is negative.

7, -3, -1, 2, 5

this is because if u use a numberline all the negative numbers will be on the left and all the positive numbers will be on the right. we also read from left to right but if we do this on the number line it will be greatest to least but we are not looking for that we reads the number right to left

Answer:

i think that the Brain is not a bot because they help us a lot just think about it.