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3 years ago

Need help with math problem if do get 5 star

Mathematics

1 answer:

777dan777 [17]3 years ago

6 0

Answer:

d) 63 square units

Step-by-step explanation:

x = 3 units (base - b)

y = 6 units (width - w)

h = 7 units (length and height - l and h)

Area of a rectangle: l*w
Area of a triangle: 1/2*b*h

For the triangles:

Area of a triangle: 1/2*b*h

A = 1/2 * 3 * 7

A = 1/2 * 21

A = 10.5

*Since there are two triangles, it would be 10.5 * 2 = 21

For the rectangle:

Area of a rectangle: l*w

A = 7 * 6

A = 42

Now, we add them together:

A = 42 + 21

A = 63 square units

Therefore, the area of the parallelogram is 63 square units

Hope this helps!

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Derek sees that a 24 foot flagpole casts a 10 foot shadow. At the same time of day, if a nearby tree casts

Lunna [17]

Answer:

60 ft.

Step-by-step explanation:

We can solve this problem with a simple proportion:

24 / 10 = h / 25

10h = 24 * 25

600 = 10h

60 ft. = h

4 0

3 years ago

Write the value of n that makes statement true (3+n)+7=3+(6+7)

8_murik_8 [283]

Answer: n = 6

Step-by-step explanation:

First lets combine like terms

(3 + n) + 7 = 3 + (6 + 7)

10 + n = 16

Now let’s subtract 10 on each side to isolate x

N = 6

Now let’s check our work by inputting x just to make sure

(3 + 6) + 7 = 3 + (6 + 7)

9 + 7 = 3 + 13

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So we are right!

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4 years ago

Graph the domain of the function on the number line g(x)=(square root of)x+9

strojnjashka [21]

Domain: {x>= -9} x belongs to real numbers
graph is attached

5 0

3 years ago

In a coffee shop, the average drink is currently $4.50 while the average pastry is $2.25. You've made a total of $5,250 today. W

Kamila [148]

Answer:

$4.50x+2.25y=5,250$ where $x$ denotes number of drinks and $y$ denotes number of pastries.

Step-by-step explanation:

Let $x$ denotes number of drinks and $y$ denotes number of pastries.

Cost of the average drink = $4.50

Cost of the average pastry = $2.25

Total amount = $5,250

Therefore,

$4.50x+2.25y=5,250$

6 0

4 years ago

a quarterback throws a football from a height of 6 feet with an initial velocity of 20 feet per seconds. the height (h) of the b

kirza4 [7]

The range of the function is from 2 feet to 12.25 feet

Step-by-step explanation:

In a function f(x) = y

x is the domain of the function
y is the range of the function

The height (h) of the ball at time (t) seconds can be represented by the equation h(t) = - 16 t² + 20 t + 6

∵ h(t) = - 16 t² + 20 t + 6

∴ The domain is t

∴ The range is h(t)

- To find the range of the quadratic function find the maximum or

minimum value of it

∵ The leading coefficient of the function is -16

∴ The function has a maximum value

To find the maximum value differentiate h(t) with respect to t and equate it by 0 to find the value of t for the maximum height

∵ h'(t) = -16(2) t + 20(1)

∴ h'(t) = -32 t + 20

- Equate it by 0

∵ h'(t) = 0

∴ -32 t + 20 = 0

- Subtract 20 from both sides

∴ -32 t = - 20

- Divide both sides by -32

∴ t = 0.625 seconds ⇒ time for the maximum height

Substitute the value of t in h(t) to find the maximum height

∵ h(0.625) = -16(0.625)² + 20(0.625) + 6

∴ h(t) = 12.25 feet

∴ The maximum height of the ball is 12.25 feet

∵ The ball is caught at 2 feet

∴ The range of the function is 2 ≤ h(t) ≤ 12.25

The range of the function is from 2 feet to 12.25 feet

Learn more:

You can learn more about the quadratic equations in brainly.com/question/9390381

#LearnwithBrainly

8 0

3 years ago