Mark the statements that are true.

Answer:

Let the angles be (a-d), a , (a+d)

a-d + a + a + d = 180 (angle sum property)

3a = 180

a = 60

Given:

a+d = 2(a-d)

60 + d = 2(60 - d)

60 + d = 120 - 2d

3d = 120 - 60

d = 20

Angles are : 40 , 60 , 80

Answer:

-2 over -2

Step-by-step explanation:

because you have rise over run and if you gave -2 over -2 you would write it as just -2

Answer:

-2

Step-by-step explanation:

The equation for this case is y=mx+b

In this case the m or slope is -2

Answer:

1 plus 1 is 2

Step-by-step explanation:

If you can download this app and type this question, I am pretty sure you can figure it out

Answer:

1+1=2

1+1=2

1+1=2

1+1=2

1+1=2

1+1=2

1+1=2

Answer:

No

Step-by-step explanation:

Answer: NO

Step-by-step explanation: Put in (-7) in place of x, and (7) in place of y in the equation If the equation does not equal -2, it is not a solution. If it does equal -2, it is a solution.

(-7,7)

6x+9y=-2

Plug in -7 for x and 7 for y.

6(-7)+9(7)=-2?

Solve the equation.

-42+63= -21

So, (-7,7) is not a solution to this equation.

Mark me brainliest! :D

Answer:

10.3

Step-by-step explanation:

\text{SOH-CAH-TOA}

SOH-CAH-TOA

\tan X = \frac{\text{opposite}}{\text{adjacent}}=\frac{x}{4.8}

tanX=  

adjacent

opposite

​  

=  

4.8

x

​  

\tan 65=\frac{x}{4.8}

tan65=  

4.8

x

​  

4.8\tan 65=x

4.8tan65=x

Cross multiply.

x=10.2936\approx \mathbf{10.3}\text{ feet}

x=10.2936≈10.3 feet

Type into calculator and round to the nearest tenth of a foot.

X

Y

Z

4.8

10.3

(adjacent to ∠X)

(opp. of ∠X)

(hypotenuse)

65°

Answer:

900

Step-by-step explanation:

Answer:900

Step-by-step explanation: you add all the sides up which is 7 then subtract by 2. next you multply 5 because the difference of 7 and 2 is 5 then do 5 times 180.

Answer:

The answer is [tex]6a^2[/tex].

Step-by-step explanation:

Solve:

[tex](-2a)(-3a)[/tex]

Multiply [tex]a[/tex] and [tex]a[/tex] :

[tex](-2a)(-3a)[/tex]

[tex]-2a^2(-3)[/tex]

Multiply [tex]-2[/tex] and [tex]-3[/tex] :

[tex]-2a^2(-3)[/tex]

[tex]6a^2[/tex]

So, the final answer is [tex]6a^2[/tex].

Answer:

99°

Step-by-step explanation:

We know that angles on a straight line add up to 180° so we can set up an equation to find the value of x.

In an equation it's important to do the operation you want to on both sides because if you do an operation on one side only you will end up changing the whole equation and that will make the value of x wrong so its an important rule to remember.

8x - 13 + 7x - 17 = 180

→ Simplify

15x - 30 = 180

→ Add 30 to both sides to isolate 15x

15x = 210

→ Divide both sides by 15 to isolate x

x = 14

But we are not finished, the specifies us to find ∠MON and we have only found the value of x so we have to substitute x back into 8x - 13 to find the value of ∠MON

8x - 13

→ Substitute x = 14 back into into the expression

8 × 14 - 13

→ Simplify

112 - 13 = 99

So the value of ∠MON is 99°

Answer:

(x,y)=(5-2y,y), y belongs to all real numbers

Step-by-step explanation:

x=5-2y

3x=15-6y

3(5-2y)=15-6y

15-6y=15-6y

y∈All Real Numbers

(x,y)=(5-2y,y), y∈All Real Numbers

Answer:

15.94 meters

Step-by-step explanation:

11/0.69 = 15.942.......

Round it to get 15.94

Answer:

x = 9

Step-by-step explanation:

To solve these problems, you first set up an equation representing the information given.

6x = x² - 27

This turns into a quadratic equation which you need to factor out.

0 = x² - 6x - 27

You want to choose two numbers that multiply to -27, and add up to -6

0 = (x - 9)(x + 3)

If you're unfamiliar with factoring, you take the opposite sign of the number in the parentheses because it's a shortcut when setting it equal to 0.

x = 9, -3

Since it asks for the positive solution only, the answer is x = 9.

I hope this helps!

Answer:

25%

Step-by-step explanation:

Answer:

25 cents or $0.25

Step-by-step explanation:

1.25 + 2x = 0.50 + 5x

0.75 = 3x

x = 0.25

Answer:

Step-by-step explanation:

The set C could be generated by an exponential function. The main reason is that exponential functions hava a restricted range, it can't have negative numbers or the number zero, because power can only be equal or greater than 1.

Additionally, for all exponentials, a null exponent gives 1 as an answer, so point (0, 1) is always present in an exponential function.

Therefore, the right answer is C.

The set of ordered pairs could be generated by an exponential function is C. (negative 1, one-half), (0, 1), (1, 2), (2, 4)

An exponential function simply means a relation that's in the form of y = ax².

In this case, the set of ordered pairs could be generated by an exponential function is (negative 1, one-half), (0, 1), (1, 2), (2, 4). It has a restricted range.

Learn more about exponential function on:

https://brainly.com/question/12940982

#SPJ2

Answer:

[tex]672m^2[/tex]

Step-by-step explanation:

[tex]A=2(wl+hl+hw)=2*(12*12+8*12+8*12)=672m^2[/tex]

Answer:

r = 6

Step-by-step explanation:

The equation is 3r + 18=6 + 5r. First, you have to get the coefficient on one side because it will be easier to solve. In order to do so, I subtract 3r from both sides. The equation is now 18=6 + 2r. The next step is to get the constant which is 6 to the left side. You subtract 6 from both sides. You are left with 12=2r. All you have to do now is to get r alone. In order to do that you have to divide both sides by 2. The answer would be 6. Hope you find this helpful!

Answer:

108

Step-by-step explanation:

[tex]V=8*1.5*9=108[/tex]

Answer:

C - 108

Step-by-step explanation:

i just did it on edge 2020 i hope it helps :)

Answer:

250 pounds

Step-by-step explanation:

405 ÷ 1.62 = 250pounds

Answer:

£250

Step-by-step explanation:

$405 ÷ 1.62 = £250

Answer: Idk

Step-by-step explanation:

I really don't know

Answer:

4/3

Step-by-step explanation:

Slope is calculated by [tex]\frac{y1-y2}{x1-x2}[/tex] so now you pul the points (10,2) and (19,14) into that.

[tex]\frac{14-2}{19-10}[/tex] = [tex]\frac{12}{9}[/tex]

12/9 can be simplified to be 4/3

Answer:

4/3

Step-by-step explanation:

Given,

Two points are (10,2) and (19,14)

To find the slope of the line passing through these points.

Answer:

$2.72

Step-by-step explanation:

If the price decreased by 20%, the final price will be 100% - 20% = 80% of the inicial price.

So, we can write the ratio box:

                              Old value      New value

Percent value:       100%             80%

Value:                    $3.40             X

Then we can solve with a rule of three:

100% -> $3.40

80% -> X

X = 0.8 * 3.4 = $2.72

Answer:

The cost after the 20% decrease is $2.72

Step-by-step explanation:

Here, we are trying to calculate the cost of a 10-minute call before there was a decrease in the amount charged for the call.

We proceed mathematically as follows,

To calculate percentage decrease, we can employ the formula;

(old value- new value)/old value * 100%

Here our old value or cost was $3.40 and the percentage decrease is 20%

we plug these values;

Let the new cost it value be x

(3.4-x)/3.4 * 100 = 20

100(3.4-x) = 20 * 3.4

340 - 100x = 68

100x = 340 -68

100x = 272

x = 272/100

x = $2.72

Answer:

  15

Step-by-step explanation:

Write an equation expressing the given relationship. Solve it to find the numbers.

__

Let x represent "another number." Then the number I'm thinking of is ...

  (3x -3)

and the product of that and "the other number" is 90:

  x(3x -3) = 90

  x(x -1) = 30 . . . . . . divide by 3

We know the factors of 30 are ...

  30 = 30·1 = 15·2 = 10·3 = 6·5

Of these factor pairs, the numbers that differ by 1 are 6 and 5. "The other number" is 6, and "my number" is 90/6 = 15.

My number is 15.

Answer:

Step-by-step explanation:

1. V= length*width*height

96 = 6.0*3.2*h

96=19.2h divide both sides by 19.2

height =5 cm

2. V=l*w*h

22 = l*2.0*1.1

22=l*2.2

l= 10 cm

3. V= L*w*h

120 = 12.0*w*4.0

120=48*w

w= 2.5 cm

Answer:

area of the figure ≈61.23 cm² to the nearest hundredth

Step-by-step explanation:

To find the area of the figure, we will follow the steps below;

Looking at the figure, we will see that the figure comprises of both semi-circle and a parallelogram

area of figure = area of semicircle + area of parallelogram

first, we will find the area of the semi-circle

area of a semi-circle = πr² /2

from the diagram given, diameter = 7cm

but diameter = 2r, this implies that radius r = d/2, hence radius r = 7/2 = 3.5 cm

π = 3.14

Lets insert the values into the formula

area of a semi-circle = πr² /2

                                    =3.14×3.5² /2

                                    =3.14×12.25 /2

                                     =19.2325 cm²

Area of a parallelogram = b×h

where b = base and h = height

from the figure given, base b = 7cm   and height h = 6 cm

Lets insert the values into the formula

Area of a parallelogram = b×h

                                       = 7×6

                                       =42 cm²

area of the figure = area of semicircle + area of parallelogram

                                =19.2325 cm²   +   42 cm²

                                =61.2325 cm²

                                ≈61.23 cm² to the nearest hundredth

area of the figure ≈61.23 cm² to the nearest hundredth

Answer:

3(−x+2)(x+7)

Step-by-step explanation:

Factor −3x2−15x+42

−3x2−15x+42

=3(−x+2)(x+7)

Answer:

The length of the hypotenuse is 30 feet

Step-by-step explanation:

Here, we are to calculate the length of the hypotenuse of an iscosceles right triangle.

For the triangle to be isosceles, it means that the opposite and the adjacent are equal in length.

Now, to calculate the value of the hypotenuse, we make use of the Pythagoras’ theorem which states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Mathematically;

let’s say the hypotenuse is length h feet

h^2 = {15√(2)}^2 + {15√(2)}^2

h^2 = (225 * 2) + (225 * 2)

h^2 = 450 + 450

h^2 = 900

h = √(900)

h = 30 feet

Answer:

30 feet

Step-by-step explanation:

Answer:

5/2 or it's 5/11

Step-by-step explanation:

(-5/6)/-2= 5/12

(5/12)/(1/6) = 5/2

because if your writing it like

[tex](-5/6)/-2\frac{1}{6} = \frac{5}{11}[/tex]

Answer:

0.38461538461

Step-by-step explanation:

Answer:

a

Step-by-step explanation:a because its interst7s

Answer:

A.

Step-by-step explanation:

line A never intersects line B

Answer:

Pls mark me brainlest i dont know what this is but i can try to do my best

Step-by-step explanation:

pls

Answer:

i think it is the 3rd one though i am not sure sorry

Step-by-step explanation:

if it is not the 3rd one then it is the 1st one