Evaluate 3a for a = 5

Answer:

C = 36°, 57°, 87°

Step-by-step explanation:

scalene = all angles are different.

acute = all angles are under 90°.

triangle = all angles add up to 180°.

The only option that works for this is C) 36°, 57°, 87°

Answer:

5.4 cm^2

Step-by-step explanation:

Given,

Height ( h ) = 2 cm

Base ( b ) = 5.4 cm

To find : Area ( triangle ) = ?

Formula : -

Area ( triangle ) = bh / 2

Area ( triangle )

= 5.4 x 2 / 2

= 5.4 cm^2

Answer:

40 quarters are in $10

Step-by-step explanation:

Answer:

40 quarters i think cause there's 4 quarters in a dollar and then 10 x 4 equals 40...

Step-by-step explanation:

The value inside the square root should be greater than or equal to zero. Then the domain of the function will be [7, ∞).

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The domain means all the possible values of x and the range means all the possible values of y.

The function is given below.

f(x) = √x

The function after the transformation, then we have

f(x) = √(x - 7) + 2

The value inside the square root should be greater than or equal to zero. Then the domain of the function will be given as,

x - 7 ≥ 0

x ≥ 7

More about the function link is given below.

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Answer:

[tex]v=480 ~in^3[/tex]

Step-by-step explanation:

[tex]v=1/3 Bh[/tex]

[tex]1/3(12)^210=[/tex]

[tex]480 ~in^3[/tex]

------------------------

hope it helps...

have a great day!!!

Answer:

price per can is 0.5

Step-by-step explanation:

Answer:he will save 100 $

Step-by-step explanation:

Answer: $142

Step-by-step explanation: assume 20miles per gallon.

Then 0.05 gallon per mile.

35psi gives 30/35= 0.85 times the surface on the ground, gives square 0.85^2= 0.73 times more deflection so heatproduction a cycle or at same speed. This gives more fuelconsumption.

I once determined that when driving 50mph/80kmph constant, tires use 25% of the total fuel-consumption.

Higher speed same fuelconsumption by the tires, but more bij the higher speed. But to keep it simple only 50mph.

The fuelconsumption at 30 psi 0.05 gpm, 25% by the rolling resistance is 0.0125mpg. 35psi ,0.73 x0.0125=0.0091gpm.

The windforce stays the same 75% of total is 0.0375mpg+ 0.0091= 0.0466mpg,0.0466gpm/0.05= 93% used of fuel with 35psi then at 30 psi.

So 21000mpj x 0.05gpm= 1050 gallon

21000mpjx 0.466gpm= 979gallon.

Saving 1050-979= 71 gallonx $2= $142

Rounded here and there, and other speeds give other divisions, but to show the idea how to calculate it.

Also if 25% used is right is discussable.

Answer:

B

Step-by-step explanation:

45-45-90

find hypotenuse: leg × root 2

[tex]8 \times \sqrt{2} [/tex]

9514 1404 393

Answer:

  8167.14 m²

Step-by-step explanation:

The radius of the circle is half the diameter, so is 51 m. The area of the circle is given by the formula ...

  A = πr²

Filling in the given numbers, we find the area to be ...

  A = 3.14(51 m)² ≈ 8167.14 m²

Answer:

25

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

Answer:

160 in³

Step-by-step explanation:

Volume of rectangular pyramid, V = (Length * width * height) / 3

Length = 10 in ; width = 8 in ; height = 6 in

V = (10 * 8 * 6) / 3

V = 160 in³

Answer:

110 in.²

Step-by-step explanation:

The figure is composed of a parallelogram and a rectangle

Therefore, the area of the figure = area of rectangle + area of parallelogram

= Length*Width + base*height

Length = 10 in.

Width = 6 in.

base = 10 in.

height = 5 in.

Area of the figure = 10*6 + 10*5

= 60 + 50

= 110 in.²

Answer:

It is best to solve a system of equations using substitution when one of the equations isolates one of the variables, or when the coefficient of one of the variables is 1 or -1.

Step-by-step explanation:

This makes it easier to substitute one variable for the other, allowing you to solve for the remaining variable. It is also a good idea to check the solution back in the original equations just to make sure it is a valid solution

Answer:

Answer Below

Step-by-step explanation:

It is best to use substitution if one of the variables is isolated or has a coefficient of 1 or -1.

Answer:

pi is considered to be irrational because it is a non-terminating, non-repeating decimal

Step-by-step explanation:

1) Note that in the problem above, the complete table is given as:

Team Number:     1             2      3           4           5

Best Jump (ft)       20.6    21.5    20.9      19.4        20.2

2) If Best Jump is denoted as y and Team number as x then, Best Jump is the Range while Team Number is the Domain.

3) For each element of the domain, there is a corresponding element of the range. So this relation is a function.

Domain and range are crucial characteristics that aid in the definition of a relationship. The domain is a collection of input values.

The independent variable represents these values, which are graphed on the axis of a coordinate graph. A function's range is its collection of output values.

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Answer:

34/10 is equivalent to 17/5 because 17 x 2 = 34 and 5 x 2 = 1051/15 is equivalent to 17/5 because 17 x 3 = 51 and 5 x 3 = 1568/20 is equivalent to 17/5 because 17 x 3 = 68 and 5 x 3 = 20

Step-by-step explanation:

hii, how are you

Answer is [tex] \bf \dfrac{80}{7} [/tex] dm².

In order to calculate the area of the board that can be seen, we need to calculate the area of the the rectangular board and the circular frame. The difference of both's area is the required answer.

Refer to the attachment for step by step solution. :)

The area of the board that can be seen is  11.44 decimeter square.

The area of the board that can be seen is equivalent to the difference between the area of the circular picture and the area of the rectangular board.

Area of a circle = πr²

Where :

3.14 x 2² = 12.56 d²

Area of the rectangle = length x width

6 x 4 = 24

Area of the board that can be seen = 24 - 12.56 = 11.44 decimeter square

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a) The degree of the polynomial is 5.

b) The second difference is -726        -126        -6        114         714

c) The difference when they are constant is 480.

What is a polynomial?

A polynomial is a mathematical equation that solely uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are sometimes known as indeterminates in mathematics.

y values:      -999           -140          -7          0           1         116          945

1st difference        859           133          7           1          115         829

2nd difference               -726        -126        -6        114         714

3rd difference                           600      120      120       600

4th difference                                  -480      0         480

5th difference                                           480     480

The degree of a polynomial is the number of difference where it is constant.

The degree of the polynomial function is 5.

The constant is the 5th difference which is 480.

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Answer:

62ft²

Step-by-step explanation:

Hi there!

Surface area is calculated by this formula:

2(length*width)+2(width*height)+2(length*height)

*note: we multiply each area by 2, as the prisim has 6 faces, or 2 of each face

we're given a length of 5 ft, a width of 2 ft, and a height of 3ft

now let's calculate the surface area

to find the area of the first two faces:

2(length*width)

2(5*2)

2(10)

20 ft²

now to find the area of the second two faces:

2(width*height)

2(2*3)

2(6)

12 ft²

finally, find the area of the last two faces:

2(length*height)

2(3*5)

2(15)

30 ft²

now add up all the values

SA=20+12+30=62 ft²

your answer is 62ft²

Hope this helps!

20 beacuse you need hiking boots to hike

Answer:

25

Step-by-step explanation:

let x = # of participants on the hike

(.80)x = 20

x = 20/0.80 = 25

Answer: Statement 2 (P(odd number) = 1/2) is true

Step-by-step explanation:

Statement 1: there are 4 even numbers (2, 4, 6, 8) so therefore a 1/2 chance, not a 1/8. [FALSE]

Statement 2: there are 4 odd numbers (1, 3, 5, 7) so therefore a 1/2 chance, so this is true. [TRUE]

Statement 3: 8 is the biggest number, so there are 7, not 1, numbers less than it. [FALSE]

Statement 4: there is no 9 on an 8 sided cube. [FALSE]

Answer:

commutative property of addition

Step-by-step explanation:

commutative property of addition

The commutative property of addition allows you to change the order of the numbers in an addition.

For example, 1 + 2 = 2 + 1

Answer:

5 hours

Step-by-step explanation:1 over 5 of an hour is 20 minutes. 20 minutes = 1 over 15 of lawn.

20 x 15 = 300

300 divided by 60 = 5 (hours)

Answer:

5.794

Step-by-step explanation:

The seven after the decimal point is the tenth digit, the nine is the hundredth, and the 3 is the thousandth place. Therefore, we look at our neighbor (the number next to the thousandth place) and if its 5 or more we round up, but if its 4 or less we keep it the same.

Answer:

550 lattes he sold this week

Step-by-step explanation:

$275÷$0.50= 550

Answer:

a = 327 m²

Step-by-step explanation:

Area of bed

r = 22/2 = 11

a = 3.14(11²)

a = 379.94

Area of bed and sidewalk

r = 11 + 4 = 15

a = 3.14(15²)

a = 706.5

Area of sidewalk

a = 706.5 - 379.94

a = 327 m² (rounded to whole number