3. Which part of an ecosystem is alive and provides oxygen for animals?
a. Soil
b. Plants
c. Water
d. Mushrooms

Answer:

138

Step-by-step explanation:

Hope you have a wonderful day!

Answer:

Step-by-step explanation:

If they are parallel, that means the slope is the same. We can then use the slope point form: y - y1 = 1/2(x - x1) which is the form in the question as well.

Given that there is a point at (4,2), the equation of the line is then

y - 2 = 1/2(x-4)

Answer:

[tex]y=\frac{1}{2} x[/tex]

Step-by-step explanation:

Find the slope of the original line and use the point-slope formula

[tex]y-y_{1} =m(x-x_{1} )[/tex]

to find the line parallel to

[tex]y-4=\frac{1}{2} (x+3)[/tex].

Answer:

Step-by-step explanation:

its volume is h.r^2.ℼ

r = radius

h = height

5 x (5x5) x ℼ = 125ℼ

125ℼ is approximately 392.7  

Answer:

5x + 3

Step-by-step explanation:

Answer:

5/8

Step-by-step explanation:

The fraction of students that went to the baseball game can be known by adding the fraction of students that went to the zoo and the aquarium and subtracting it from 1

Sum of the fraction of students that went to the zoo and the aquarium

= [tex]\frac{1}{4} + \frac{1}{8}[/tex]

  [tex]\frac{2 + 1 }{8}[/tex]

= [tex]\frac{3}{8}[/tex]

Fraction of students that went to the baseball game = 1 - [tex]\frac{3}{8}[/tex]

[tex]\frac{8}{8} - \frac{3}{8}[/tex] = [tex]\frac{5}{8}[/tex]

Answer:

108 student tickets, and 176 adult tickets  were sold

Step-by-step explanation:

Adult ticket $8  Call the number of adult tickets sold "a"

Student ticket $5  Call the number of student tickets sold "s"

Since we are talking about TWO consecutive days of sold out seats, the total number of seats sold were 2* 142 = 284

Then we create two different equations with the information given:

a + s = 284

8 * a + 5 * s = 1948

we can solve for s in the first equation as follows: s = 284 - a

and use it in the second equation

8 a + 5 (284 - a) = 1948

8 a + 1420 - 5 a = 1948

combining

3 a = 528

a = 528/3

a = 176

we find the number of student tickets using this answer in the substitution equation we used:

s - 284 - 176 = 108

Therefore 108 student tickets, and 176 adult tickets were sold.

Answer:

36

Step-by-step explanation:

the volume of the prism is, the area of the base x height

.

b x 16 = 576

b = 36

so the answer is 36

Answer:

C) 36

Step-by-step explanation:

Answer:

Answer:

A.  The temperature of the city and the number of popsicles sold are positively correlated

B.

Slope: 0.1233

Y-Intercept: 6

Step-by-step explanation:

Being dead honest with you less people will answer if there isn;t a photo, But I can't be 100% sure of my answer being there isn't one.

(90,20)

(40,10)

40-90= -50

10-20= -10

-10/-50= 0.2

Thats the slope line I used 2 random numbers, I don't know the order so it might be wrong.

Well look at your graph are the lines going up or down as x increases?

From my assighment it is a increase.

Answer:

Rs. 42500

Step-by-step explanation:

100% + 25% = 125% ÷100 = 1.25

34000 x 1.25 = 42500

Answer:

3 grams are in one chicken wing

Step-by-step explanation:

Set up an equation:

Variable x = grams per 1 chicken wing

1000/3000 = 1/x

Cross multiply

1000 × x = 3000 × 1

1000x = 3000

Divide both sides by 1000 to isolate the variable x

x = 3

Answer:

3

Step-by-step explanation:

3000/1000=3

Answer: 24,000 / 6,200 = x years

Step-by-step explanation:

The car is valued at $24,000.

Yearly payments are $6,200.

The year that it will be paid off can be dtermined by calculating how long it would take $6,200 to get to $24,000.

You can do that by dividing $24,000 by $6,200.

Assume the number of years for the car to be paid off is x:

24,000 / 6,200 = x years

When solved:

= 24,000 / 6,200

= 3.87 years

Answer: third choice  A=6x^2-7x-3 inches squared

Step-by-step explanation:

Answer:

I think 113.04

Step-by-step explanation:

The formula for the area of the circle is:

A=

[tex]\pi \times r { }^{2} [/tex]

Resolving:

[tex]\pi \times 6 {}^{2} = 113.097[/tex]

Answer:

1/4

Step-by-step explanation:

Probability (spinning 1) = 2/8

= 1/4

Answer:

2 over 8

Step-by-step explanation:

so there are 8 numbers altogether. there are 2 1s in all so it would be 2 over 8

Answer:

601 square inches

Step-by-step explanation:

We are to find the surface area of a cube

The surface area of a cube is = 6a²

Where a = side length

From the above question,

a = 9 inches

Hence,

Surface area = 6 × 9²

= 486 square inches

We are asked to include the surface area of the bow which is given as: 115 square inches

Total Surface Area of the cube(With the bow included) = (486 + 115)square inches

= 601 square inches

Answer:

601 square inches

Step-by-step explanation:

Other guy is right i'm just here to confirm since i had it on my test

Answer:

B

Step-by-step explanation:

cause f ones have 5 lb and t ones have 2.5 lb

Answer:

B

Step-by-step explanation:

The correct answer is B!

Answer:

y = 6.5 units

Step-by-step explanation:

Let L be the length of sides of the square.

Given the following data;

Perimeter of square = 8y - 12

Area of square = 100 square units

To find the value of y;

Area of a square = L²

Substituting into the formula, we have;

100 = L²

L = √100

L = 10 units

Mathematically, the perimeter of a square is given by the formula;

Perimeter of a square = 4L

Substituting into the formula, we have;

8y - 12 = 4*10

8y - 12 = 40

8y = 40 + 12

8y = 52

y = 52/8

y = 6.5 units

Answer:

Cy

Step-by-step explanation:

x is the number of hours

Answer:

Point L

Step-by-step explanation:

L

Answer: B. L

Hope this helps

Answer:

$51.33

Step-by-step explanation:

Everything is off 65% so that means that $15.40 if 35% of the original price(100%-65%)

Set up Equation:

[tex]\frac{15.40}{x} = \frac{30}{100}[/tex]

Simplify:

[tex]\frac{15.40}{x} =\frac{3}{10}[/tex]

Multiply the first numerator by the last denominator and the first denominator by the last numerator

[tex]3x=154[/tex]

Divide 3 by both sides:

x= 51.33

Answer:

32, 45

Step-by-step explanation:

Answer:

50 km/hr

Step-by-step explanation:

OK, this is how I solved this problem.

Let r = original rate of speed

     t = time after the stop to finish the trip

Time for trip without stopping is 225/r

(1)     1.5 + .5 + t = 225/r      This is a time equation

(2)    1.5r + t(r + 10) = 225     This is a distance equation

(1)       2 + t = 225/r            (2)      1.5r + tr + 10t = 225

         2r + tr = 225

                tr = 225 - 2r                 1.5r + 225 - 2r + 10(225/r - 2) = 225

                t = 225/r - 2

                                                   -.5r + 225 + 2250/r - 20 = 225

                                                     -5r + 2250 + 22500/r - 200 = 2250

                                                     -5r^2 + 2250r + 22500 - 200r = 2250r

                                                       5r^2 + 200r - 22500 = 0

                                                       5(r^ + 40r - 4500) = 0

                                                           5(r - 50)(r + 90) = 0

                                                                 r = 50   or    r = -90

The rate cannot be negative, so the original speed 50 km/hr

This not an easy problem and I hope you were able to follow my work

Answer:50km hope that helped pls mark me brainliest :))

Answer:

x=10

Step-by-step explanation:

<AOC =90°

and <AOB + <BOC = <AOC

3x+46+14=90°

3x+60=90°

3x = 90°-60°

3x=30°

X=30÷3

X= 10°

Answer:

x = 30

Step-by-step explanation:

They are vertical angles.

Equation: 2x - 15 = 45

                2x = 60

                  x = 30

Answer:

First figure is a hexagon

second figure is a dodecagon

third figure is a decagon

Step-by-step explanation:

We can classify each figure by how many sides it has.

the first one had 6 sides. a six sided polygon is known as a hexagon

the second one has 12 sides. a 12 sided polygon is known as a dodecagon

the third one has 10 sides. a 10 sided polygon is known as a decagon

Answer:

Step-by-step explanation:

2x2+5x−10=x2+4

Step 1: Subtract x^2+4 from both sides.

2x2+5x−10−(x2+4)=x2+4−(x2+4)

x2+5x−14=0

For this equation: a=1, b=5, c=-14

1x2+5x+−14=0

Step 2: Use quadratic formula with a=1, b=5, c=-14.

x=

−b±√b2−4ac

2a

x=

−(5)±√(5)2−4(1)(−14)

2(1)

x=

−5±√81

2

x=2 or x=−7

Answer:

x=2 or x=−7

Answer:

x = 2 or x= -7

Step-by-step explanation:

We can use factorisation to solve this.

First, we shift all the variables to one side (see attachement)

Then, we need to find the value of x, which multiples to give -14 and adds together to give 5.

7 - 2 = 5

and 7 x (-2) = -14.

Now we factorize (group into brackets) to find the values of x.

We solve for x to find the final answer.