Find the area of this circle. Use 3 for 7.
A = ar2
7 cm
[?] cm2

Answer:

10)

180-3x =x (corresponding angles are equal)

x=45°

11)180-5x=3x ( same reason)

x=10°

12)180-6x=3x(same reason)

x=20°

Answer: See explanation

Step-by-step explanation:

10) Same side interior angles add up to 180°

3x + x = 180

4x = 180

x = 45

11) Same side interior angles add up to 180°

5x + 3x = 180

8x = 180

x = 22.5

12) 6x is vertical to an angle that has a relationship with 3x (same side interior angles) which means 6x and 3x have to add up to 180° as well

6x + 3x = 180

9x = 180

x = 20

Answer:

dang, if i had to guess, just add your numbers then divide.

Step-by-step explanation:

Answer:

o dpB

Step-by-step explanation:

Answer:

the experimental probability is based on the results of the experiment which yielded heads 1 out of 6 times; in theory, the results of flipping a coin and landing on heads would be 1 out of 2

Step-by-step explanation:

Answer:

Yes

No

Yes

No

Yes

No

Answer:

10.5

Step-by-step explanation:

3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5

Answer:

11

Step-by-step explanation:

assumind we start from 3, the pattern goes that you add .5 each time

so, 3+0.5x

x=16

3+8=11

Answer:

See bolded below

Step-by-step explanation:

1. First solve the inequality:

2|3-4x|+5>4 [subtract 5 from both sides]

2|3-4x| > - 1 [divide both sides by 2]

|3-4x| > - 1/2

Since all absolute values are always greater than or equal to 0, the solution would be: All Solutions. Respectively in interval notation we have (- ∞, ∞)

2. Start by solving the equation:

|2-3x|=|x-3|,

2-3x = x-3, 2-3x = -(x - 3)

x = 1.25, x = -0.5

In set builder notation: { x | x ∈ {1.25, -0.5} }

What did you need help with

Answer:

what's the question though?

Step-by-step explanation:

Answer: A ratio is one thing or value compared with or related to another thing or value; it is just a statement or an expression, and can only perhaps be simplified or reduced. On the other hand, a proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved.

Step-by-step explanation: looked it upp

9514 1404 393

Answer:

  B.  39°, 106°, 43°

Step-by-step explanation:

The sum of angle measures in a triangle is 180°. Then the sum of angle expressions will be 180.

  (3x +1) +(11x -4) +(5x -7) = 180

  19x -10 = 180 . . . . . collect terms

  19x = 190 . . . . . . . . add 10

  x = 10 . . . . . . . . . . . divide by 19

__

Then the three angle measures are ...

The appropriate choice is ...

  B.  31°, 106°, 43°

Answer:

Letter D! That's the answer

Answer:

C. y = 4

Step-by-step explanation:

[tex] \sin \: 30 \degree = \frac{y}{8} \\ \\ \frac{1}{2} = \frac{y}{8} \\ \\ y = \frac{8}{2} \\ \\ y = 4[/tex]

Answer:

wheres the statements...?

Step-by-step explanation:

Answer:

It has a slope of 0

m-0

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

<

Step-by-step explanation:

Answer:

Kindly check explanation

Step-by-step explanation:

If Brooke multiplied 3 by 9 and obtained 17 ; then Brooke is definitely wrong

3 * 9 = exactly 27

However, for approximation sake ;

We could round 9 to 10 ; and multiply 10 by 3

10 * 3 = 30 ; this gives an approximate solution for the multiplication problem ;

3 * 9 = exactly 27 or approximately 30

Answer:

the surroundings or conditions in which a person, animal, or plant lives or operates

Step-by-step explanation:

they spelt it wrong

Answer:

Environment means anything that surround us. It can be living things (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. In the environment there are different interactions between animals, plants, soil, water, and other living and non-living things.

i think it is A. P(5<X<9)

Answer:

15

Step-by-step explanation:

becasue the slope is very harddddd

Answer:

77

Step-by-step explanation:

Answer:

r = 8.2mm

d = 816.4mm

Step-by-step explanation:

Let the soap be spherical in nature

Volume of a sphere = 4/3 πr³

r is the radius

Given that V = 2308.4mm^3

Substitute

2308.4 = 4/3 πr³

2308 = 4/3 (3.14)r³

2308.4 * 3 = 12.56r³

6,925.2 = 12.56r³

r³ = 6,925.2 /12.56

r³ = 551.37

r = 8.2mm

diameter = 2r

diameter = 2(8.2)

diameter = 16.4mm

Answer:

[tex](\frac{3}{2},102)[/tex]

Step-by-step explanation:

Given

[tex]f(x)=88x^2-264x+300[/tex] --- Missing from the question

Required

The symmetry

First, we express f(x) as: [tex]f(x) = a(x - h)^2 + k[/tex]

Where the symmetry is: (h, y) and x = h

Equate f(x) to 0

[tex]88x^2-264x+300 = 0[/tex]

Subtract 300 from both sides

[tex]88x^2-264x+300 - 300= 0 - 300[/tex]

[tex]88x^2 - 264x= - 300[/tex]

Factorize

[tex]88(x^2 - 3x) = -300[/tex]

On the left-hand side, the coefficient of x is -3.

Divide by 2 and add the square to both sides.

So, we have:

[tex]88(x^2 - 3x) + (\frac{3}{2})^2 = -300 + (\frac{3}{2})^2[/tex]

Multiply the new terms by 88 (to make it factorizable)

[tex]88(x^2 - 3x ) +88* (\frac{3}{2})^2 = -300 + 88 * (\frac{3}{2})^2[/tex]

Factorize

[tex]88(x^2 - 3x + (\frac{3}{2})^2) = -300 + 88 * (\frac{3}{2})^2[/tex]

The quadratic expression in the bracket is a perfect square. This gives:

[tex]88(x - \frac{3}{2})^2 = -300 + 88 * (\frac{3}{2})^2[/tex]

[tex]88(x - \frac{3}{2})^2 = -300 + 88 * \frac{9}{4}[/tex]

[tex]88(x - \frac{3}{2})^2 = -300 + 22 * 9[/tex]

[tex]88(x - \frac{3}{2})^2 = -102[/tex]

Add 102 to both sides

[tex]88(x - \frac{3}{2})^2 +102= -102 + 102[/tex]

[tex]88(x - \frac{3}{2})^2 +102= 0[/tex]

Equate to y

[tex]y = 88(x - \frac{3}{2})^2 +102[/tex]

Recall that:

The symmetry is: (h, y)

By comparison with [tex]f(x) = a(x - h)^2 + k[/tex] and x = h

[tex]h = \frac{3}{2}[/tex]

So: [tex]x = \frac{3}{2}[/tex]

Substitute [tex]x = \frac{3}{2}[/tex] in [tex]y = 88(x - \frac{3}{2})^2 +102[/tex]

[tex]y = 88(\frac{3}{2} - \frac{3}{2})^2 +102[/tex]

[tex]y = 88(0)^2 +102[/tex]

[tex]y = 0 +102[/tex]

[tex]y = 102[/tex]

So, the symmetry is: [tex](\frac{3}{2},102)[/tex]

Answer:This is a linear equation.

y = mx+b

y is the total cost.

The slope m is the rate: that's 9 dollars per hour.

x is the number of hours.

b is the initial value: that's 16 dollars.

y = 9x+16

The problem states that the cost was 79 dollars.

Substitute that for y and solve for x.

79 = 9x+16

63 = 9x

x = 7 hour

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

80-17=63

63/7  = 9

7 times 9 = 63