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Anna [14]
4 years ago
11

PLEASE HELP WITH BOTH PARTS!!!!!!!! WILL BE MARKED BRAINLIEST!

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

<em>Part A ) Option A, Option C, Option E</em>

<em>Part B ) 1200 cm^2</em>

Step-by-step explanation:

The area of a kite can be identified through 1 / 2 of the multiplication of each diagonal. The first diagonal is equivalent to the addition of 50 cm and 10 cm, while the second is of length 20 cm + 20 cm.

1 / 2 * ( 50 + 10 ) * ( 20 + 20 ),\\1 / 2 * ( 60 ) * ( 40 ),\\( 30 ) * ( 40 ),\\\\Area of Kite = 1200 square cm

Consider the first option. If we take a look at the bit 2 * ( 1 / 2 * 20 * 50 ) the 2 and 1 /2 cancel each other out, leaving you with 20 * 50 = 1000 . Respectively in the expression 2 * ( 1 / 2 * 20 * 10 ) the 2 and 1 / 2 cancel each other out, leaving you with 20 * 10 = 200;

1000 + 200 = 1200 square cm,\\Option A - Correct!

The second option considers the expression 2 * ( 1 / 2 * 20 * 60 ). Again, the 2 and 1 / 2 cancel each other out, leaving you with 20 * 60;

20 * 60 = 1200 square cm,\\Option B - Correct!

Option C is a similar version of option a, besides the fact that the 1 / 2 doesn't exist. Thus, Option C is incorrect!

Option D is a similar version of option a as well, but as the 2 doesn't exist, it is incorrect!

This last option, option E is taken as 1 / 2 of the multiplication of the diagonals, and thus is correct!

1 / 2 * ( 40 * 60 ),\\1 / 2 * ( 2400 ),\\1200 square cm\\\\Correct!

<em>Hope that helps!</em>

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A tree is 6 feet tall. Two years after buying the tree, it had grown to a height of 9 feet how much does the tree grow every yea
kumpel [21]

Answer:

1.5 each year

Step-by-step explanation:

6 0
3 years ago
What is an equation of the line that passes through the points (-8, 2)(−8,2) and (-4, -3)(−4,−3)?
Ulleksa [173]

Answer:

y = -5/4x -8

Step-by-step explanation:

There is a y-intercept of -8

There is a slope of  -5/4

8 0
3 years ago
What is the slope of the line that passes through the points (-1,1) and (1,-15)​
Luda [366]

Answer:

  • \boxed{\text{The slope is -8.}}

Step-by-step explanation:

To find the slope of the line, you have to use a slope formula.

<u>Slope formula:</u>

\Longrightarrow:\sf{\dfrac{y_2-y_1}{x_2-x_1} }

⇒ y2=(-15)

⇒ y1=1

⇒ x2=1

⇒ x1=(-1)

<u>Rewrite the whole problem down.</u>

\Longrightarrow: \sf{\dfrac{-15-1}{1-\left(-1\right)}=\dfrac{-16}{2}=\boxed{\sf{-8}}

  • <u>So, the slope is -8, which is our answer.</u>

I hope this helps you! Let me know if my answer is wrong or not.

5 0
2 years ago
Which ordered pair is a solution of the equation?
castortr0y [4]

Answer:

d)

true

Step-by-step explanation:

- x - 4y = - 10

x + 4y - 10 = 0

a)

3 + 4×2 - 10 = 0

3 + 8 - 10 = 0

11 - 10 ≠ 0 (false)

b)

- 3 + 4×3 - 10 = 0

12 - 3 - 10 = 0

12 - 13 ≠ 0 (false)

c)

false

d)

true

4 0
3 years ago
I need help on this question, think any of you guys could help?
levacccp [35]

Answer:

We need to find the circumference, and in order to find the circumference we must know the formula for it.

Formula for circumference of a circle;

a = 2πr

Where π is the pi(3.14 or 22/7), and r is the radius which is half of the diameter.

Since we are given the diameter, we need to find the radius. So 1/2 of the diameter (26 x 1/2) = is 13

Now we just plug in the actual values in the formula:

a = 2πr

a = 2 x 3.14 x 13

a = <u>18.84 feet</u>

But now, we need to find how many revolutions it would take to get to 500 feet.

So we divide 500 feet by 18.84 feet;

500/18.84 = 26.53, around 27 revolutions.

3 0
3 years ago
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