Simplify the expression

Answer:

1) substitution method

2) zero

Step-by-step explanation:

because it has no solution as the variables cancle out eachother.

Answer:

D

Step-by-step explanation:

the answer is

Nonlinear

Answer:

1, 2, below

Step-by-step explanation:

Took the assignment on EDGE

Answer: 56

Step-by-step explanation:

70÷100×80=56

Answer:

56

Step-by-step explanation:

Another way to write this question is "What percent of 80 is 70%."

So we would write a percent proportion:

x/80=70/100

To find x, we will do (80*70)/100 which is 5600/100 which is 56.

You could also use benchmark fractions:

10% of 80 is 8

10% * 7 = 70% so 8 * 7 also equals 70%

8 * 7 = 56

Hope this helped, let me know if you have any questions.

Answer:

x = 5.01%

y = 11.1

Step-by-step explanation:

[tex]\frac{percent}{base} = \frac{rate}{100}[/tex]

Model:

50% of 120 is 60

   Rate (%) = 50

   Base (of) = 120

   Percent (is, part) = 60

Thus, x in the first problem is the rate.

[tex]\frac{3.006}{60} =\frac{x}{100}[/tex]. Cross multiply, and we get:

x = 5.01

To check, multiply 5.01% × 60 = 3.006

For the second problem, multiply 10% with 111 to get the percent, which is 11.1

Maybe try

[tex] \frac{z - y}{x} [/tex]

If that doesn't work, tell me.

Answer:

it is the first answer

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

you have to line the angles up so the congruent sides lay on each other.

Answer:

Desmond

Step-by-step explanation:

3 over 5 x 100% = 60%

20 over 25 x 100% = 80%

6.5 over 10 x 100% = 65%

38 over 50 x 100% = 76%

[tex] \frac{ {m}^{11} }{ {m}^{8} } = {m}^{3} [/tex]

[tex] {m}^{11 - 8} = {m}^{3} [/tex]

When you're dividing two exponents with like bases, all you have to do is substract the exponents.

Answer:

Step-by-step explanation:

It takes Lucas 3 hours to cycle from his home to his friend’s village:  

3 hours • (a certain speed) = distance in miles  

If he travels 5mph slower, it will take him 1.5 hours longer:

4.5 hours • (the same speed - 5mph) = the same distance in miles

 4.5 • (x - 5) = 3x

4.5x - 22.5 = 3x

1.5x = 22.5

x = 15mph  

3hours • 15mph = 45 miles

Answer:

[tex]140[/tex]°

Step-by-step explanation:

This polygon has [tex]9[/tex] sides, so it's a nonagon. The expression used to find the sum of the measures of the interior angles of any polygon is [tex]180(n-2)[/tex]° where [tex]n[/tex] is the number of sides the polygon has. In this case, [tex]n=9[/tex], so the sum of the measures of the interior angles of this polygon is [tex]180(9-2)=180*7=1260[/tex]°.

We are given that this is a regular polygon (with 9 sides), meaning that all of its interior angles have the same measure, and we also know that the sum of the measures of its interior angles is [tex]1260[/tex]°. Therefore, each interior angle measures [tex]\frac{1260}{9}=140[/tex]°. Hope this helps!

Answer:

$8802.65

Step-by-step explanation:

$2204.50

$3286.53

$3311.62

Answer:

50 times

Step-by-step explanation:

Red = 5 ; blue = 6 ; green = 3 ; black = 4 ; yellow = 2

Total number of marbles :

(5 + 6 + 3 + 4 + 2) = 20

Probability of drawing a yellow or green marble :

P(yellow) + p(green)

(2 / 20) + (3 / 20)

5 / 20

Hence, Number of times from 200 draws :

(5 / 20) * 200

= 50

Answer:  because the conditions to generate a fossil for an animal is very different from the conditions required for a plant.

Step-by-step explanation:

it is D

Answer:

d

Step-by-step explanation:

i think thats right. hope this helps

Answer:

Step-by-step explanation:

81= 3 times k. K equals 27

4x-12 = 18. X is 5

4x-3=5. X is 2

4x-2=38. Answer is C

I hope this helps!

Plz, Plz, mark Brainliest!

Answer:Cross multiply and solve for x.

x/6 = 5/1.25

let the height of building be h ft

h/6 = 60/15

h = 6(60/15) = 24

the building is 24 ft high

Step-by-step explanation:

Well first let’s covert the ft to in- 5ft is 60 in and 6ft is 72 in. Then we want to set up 2 fractions based on height and shadow, so we have 60/15=x/72 (we put x because that’s what we’re trying to find). Then we do cross multiplication so now we have 15x=4320. We divide 15, so now we have 4320/15=288. So the building is 288 in tall or 24ft tall! Glad to help! :)

Answer:

5.62 - 0.32= 5.3 or 5.30

Step-by-step explanation:

Answer:its the 2nd one

Step-by-step explanation: i remeber because i took this quiz

Answer:

I speak englush

Step-by-step explanation:

I speak English

Answer:

-1

Step-by-step explanation:

Answer:

2 units

Step-by-step explanation:

We are given that

Angle ,[tex]\theta=\frac{\pi}{2}[/tex]radian

Length of an arc=[tex]\pi[/tex]

We have to find the radius of circle in simples form.

We know that

[tex]\theta=\frac{l}{r}[/tex]

Where l=Length of arc

r=Radius of circle

Using the formula

[tex]\frac{\pi}{2}=\frac{\pi}{r}[/tex]

[tex]r=\frac{2\times \pi}{\pi}[/tex]

[tex]r=2[/tex]units

Hence, the radius of the circle=2 units

Answer:

The sprinkler will cover an area of [tex]50m^2[/tex]

Step-by-step explanation:

Given

[tex]Area = 240m^2[/tex]

[tex]\theta = 75^{\circ}[/tex]

Required

Determine the amount of area it can cover

The amount of area is calculated by calculating the area of a sector using:

[tex]Sector\ Area =\frac{\theta}{360^{\circ}} * \pi r^2[/tex]

Where:

[tex]Area = \pi r^2 = 240m^2[/tex]

So, we have:

[tex]Sector\ Area =\frac{\theta}{360^{\circ}} * 240m^2[/tex]

Substitute 75 for [tex]\theta[/tex]

[tex]Sector\ Area =\frac{75^{\circ}}{360^{\circ}} * 240m^2[/tex]

[tex]Sector\ Area =\frac{75^{\circ}* 240m^2}{360^{\circ}}[/tex]

[tex]Sector\ Area =\frac{75* 240m^2}{360}[/tex]

[tex]Sector\ Area =\frac{18000m^2}{360}[/tex]

[tex]Sector\ Area =\frac{18000}{360} m^2[/tex]

[tex]Sector\ Area =50m^2[/tex]

Hence, the sprinkler will cover an area of [tex]50m^2[/tex]

Step-by-step explanation:

since KLJ is a parallelogram, it can be split into 2 congruent triangles, as seen above. The angles remain the same, so we know angle KJL is also 25 degrees. Using the triangle angle sum theorem (all sides of a triangle add up to 180 degrees), we can determine the missing angle measure is 25 degrees. It would have been nice if the question told us JKLM was also a rhombus.

Answer:

Esteban

Step-by-step explanation:

Answer:

54.3701 feet or 16.57200648 meters

Step-by-step explanation:

Answer:

y = 1/4x + 1

Step-by-step explanation:

Rise/run = 1/4x

y-intercept: (0,1)

Equation: y = 1/4x + 1

Graph this equation or you can just put this equation in Desmos calculator and it'll graph for you.

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Work Shown:

You'll need to use a trig ratio. Specifically, we'll be using cosine here

cos(angle) = adjacent/hypotenuse

cos(x) = 13/20

cos(x) = 0.65

x = arccos(0.65)

x = 49.4583981264954 which is approximate

x = 49

The missing angle is approximately 49 degrees

Make sure your calculator is in degree mode. The notation arccos refers to arccosine and it's the same as inverse sine.

Answer: not sure

Step-by-step explanation:

But i thing its the 3rd one :P