30) Identify the polygon below.
A) Converse
B) Central
C) Convex
D) Concave

Answer:

A, C, D

Step-by-step explanation:

Since 15 is a positive integer, it can be represented in positive situations.

15 students add classes to schedule. = 15

15 points are taken away. = -15

15 point are given. = 15

15 dollars has been added to your salary = 15

15 dollars have been taken from your salary = -15

Answer:

a,b,c

Step-by-step explanation:

Answer:

I had a slightly different question, but I think its option D

(x - 3)(x + 3)

Answer:

1.25 is what she spent so she got 5 pencils

Step-by-step explanation:

Answer:

y = 1.5x + 1

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

sin (30) = 4/x => solve for x.

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

Use the sine ratio because we have the hypotenuse and side opposite the given angle to work with:

[tex]sineX=\frac{opposite}{hypotenuse}[/tex]

Insert the values:

[tex]sin30=\frac{4}{x}[/tex]

Multiply both sides by x:

[tex]x(sin30)=x(\frac{4}{x} )\\\\x*sin30=4[/tex]

Divide both sides by sin30°:

[tex]\frac{x*sin30}{sin30} =\frac{4}{sin30}\\\\x= \frac{4}{sin30}[/tex]

Insert the value of x into a calculator:

[tex]x=8[/tex]

OR:

The little red square means that angle is 90º, and the other given angle is 30°. Since every triangle has a measure of 180°, the other missing angle is 60°. The given triangle is a 30°-60°-90° triangle with the following rules:

[tex]long.leg=short.leg*\sqrt{3}\\\\hypotenuse=short.leg*2[/tex]

The hypotenuse is represented by the variable x. We are given the value of the short leg, which is 4. Solve for the hypotenuse:

[tex]h=4*2\\\\h=8[/tex]

Therefore, the value of x is 8.

:Done

Answer:

9/11 = 7/9

Step-by-step explanation:

9 are chocolate

27 - 16 = 11

7 are vanilla

20:16

Step-by-step explanation:

9 chocolate

7 vanilla

11 strawberry

9+11=20, 9+7=16

Answer:

y = 5/6x + 4

Step-by-step explanation:

y = mx + b

b = 4 because when x = 0, y = 4

m  = (y2 -y1) / (x2 - x1)

where two points on the equation are (x1, y1) & (x2, y2)

Let's pick points (6,9) & (-6,-1)

m = (-1 - 9) / (-6 - 6)

m = -10 / -12 = 5/6

Answer:

Please check the graph attached.

Step-by-step explanation:

Given the function

f(x)= 6x-5

and

g(x)=f(x) +9

g(x)=f(x) +9 means 9 is added into the output of the parent function f(x).

It means the function g(x) would be shifted 9 units up.

Please check the attached diagram.

The red graph represents the graph f(x)= 6x-5.

It is clear that the y-intercept of the graph f(x)= 6x-5 is (0, -5)

The blue graph represents the graph g(x)=f(x) +9

It is clear that the y-intercept of the graph g(x)=f(x) +9 is (0, 4)

Conclusion:

It is clear that g(x)=f(x) +9 has been shifted up by 9 units from the  f(x)= 6x-5.

Answer:

{19,13,7,1}

Step-by-step explanation:

Since the domain is the input we have to plug in each of those numbers to get the range ( or the output.) When we plug in -4 we get 19. When we plug in -2 we get 13, when we plug in 0 we get 7 and when we plug in 2 we get 1. (:

Answer:

Polynomial equation solver

x-3=3x-2

Standard form:

−2x − 1 = 0

Factorization:

−(2x + 1) = 0

Solutions:

x = −1

2

= -0.5

Answer:

a) -2n+14

b) -5n+30

Step-by-step explanation:

negative because it goes down, any other questions im here to help

Answer:

In the comments

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

We know a number is an expression when it is:

1) NOT greater/ less than something else

2) NOT equal/ not equal to something else

The only answer choice that satisfies the above is A.

Answer:

30

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

i really don't have a method for this, just try a number you think is close, go up, or down depending on the number

Answer:12.567

Step-by-step explanation:

Answer:

x=3 hope I helped you! :)

Answer:

t = total money spent

t = $2.99g + $3.25c

for b just plug in g and c

$2.99(7.9) + $3.25(4)

if you put it into a calculator you get that he spent a total amount of $36.62 for the 7.9 gallons of gas and the 4 cans of oil. (:

Answer:

A=45 + 15 + 30 = 90 B=15 (for both spaces) C= Pencils=3 boxes a crayons=1 erasers per bag=2 D= 12 pencils in a pack and 3 in a supply kit.

Step-by-step explanation:

That's it!

Answer:

The one on top is no solution and the one on bottom is one solution

Answer:

the top one has no solution

Step-by-step explanation:

Answer:

Step-by-step explanation:

1- Remove any grouping symbol such as brackets and parentheses by multiplying factors.

2- the exponent rule to remove grouping if the terms are containing exponents.

3- Combine the like terms by addition or subtraction.

4- Combine the constants.

Answer:

40°

Step-by-step explanation:

Angles on a straight line add up to 180

180 - 110 = 70

As it's an isosceles triangle the opposite angles are the same

70 + 70 = 140

180 -140 = 40

Answer:

Step-by-step explanation:

180-110=70

x+70+70=180

x=180-140=40°

Answer:

The answer 3/4

Step-by-step explanation:

Answer:

\frac{3}{4}

[tex]convert \: the \: mixed \: numbers \: into \: a \: fraction frac{9}{4} - \frac{3}{2}

applying the fractions formula for subtraction

(9 \times 2) - (3 \times 4) \\ 4 \times 2 \\ = 18 - 12 \\ 8 \\ = \frac{6}{8} \\ then \: diide \: each \: number \: by \: 2 \: and \: get \\ \: \frac{3}{4}

Answer: 14 students

Step-by-step explanation:

50,00-8.00= 42.00       42.00/3.00=14.00

Answer:

Step-by-step explanation:

Answer:

15) The equation to find the sum of interior angles is

(n - 2).180

which means that a polygons interior angles will always be a multiple of 180 because they are multiplied by it.

Answer:

The cone would not the all of the ice cream fit into the cone.

Step-by-step explanation:

Geometrically speaking, the volume of the cone ([tex]V_{c}[/tex]), measured in cubic inches, is described by the following equation:

[tex]V_{c} = \frac{\pi}{3}\cdot r^{2}\cdot h[/tex] (1)

Where:

[tex]r[/tex] - Base radius, measured in inches.

[tex]h[/tex] - Height, measured in inches.

And the ice cream ball is described by the volume equation for the sphere ([tex]V_{s}[/tex]), measured in cubic inches:

[tex]V_{s} = \frac{4\pi}{3} \cdot R^{3}[/tex] (2)

Where [tex]R[/tex] is the radius of the ice cream ball, measured in inches.

In this case, the ice cream will fit into the cone if and only if [tex]V_{s} \le V_{c}[/tex]. That is:

[tex]\frac{4\pi}{3}\cdot R^{3} \le \frac{\pi}{3}\cdot r^{2}\cdot h[/tex]

[tex]4\cdot R^{3} \le r^{2}\cdot h[/tex]

If we know that [tex]r = 0.875\,in[/tex], [tex]h = 4\,in[/tex] and [tex]R = 1.25\,in[/tex], then the inequation is:

[tex]4\cdot (1.25\,in)^{3}\le (0.875\,in)^{2}\cdot (4\,in)[/tex]

[tex]6.25\,in^{3}\le 3.063\,in^{3}[/tex] (CRASH!)

Which leads to an absurd. Hence, the cone would not the all of the ice cream fit into the cone.

Answer:

$28.13

Step-by-step explanation:

english: 6.25% of $450

math: (6.25/100) x 450 = 0.0625x450 = 28.125 = 28.13, rounded

Answer:

108 degrees difference.

Step-by-step explanation:

63+45=108

Answer:

108

Step-by-step explanation:

45--63=108

Hope you have a great day!

Answer:

None of those are correct because none equal 25

Answer:

none

of them equel 25 on edge 2021

Step-by-step explanation: