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Ad libitum [116K]
3 years ago
5

Find the value of the unknown angle. 25 30 43 80

Mathematics
1 answer:
KengaRu [80]3 years ago
5 0

Answer:

It is 30°

Step-by-step explanation:

Putting the formula exterior angle of a triangle = the sum of 2 interior angles of a triangle.

let the angle be x;

Therefore,

80°+x = 110°

x = ( 110 - 80 )°

x = 30°

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What is the equation of a parabola that has a vertex at ( 0,4 ) and passes through points ( 2,0 )?
vlada-n [284]

Answer:

<u>y = -x² + 4</u>

Step-by-step explanation:

The equation of the parabola in the vertex form is:

y = a (x-h)² + k

Where: (h,k) the coordinates of the vertex & a is a multiplier

The parabola has a vertex at ( 0,4 )

So, h = 0 , k = 4

∴ y = a (x-0)² + 4

∴ y = a x² + 4

The parabola passes through points ( 2,0 )

∴ 0 = a 2² + 4

∴ 4 a = -4  ⇒ a = -4/4 = -1

∴ y = -x² + 4

So, the equation of a parabola that has a vertex at ( 0,4 ) and passes through points ( 2,0 ) is <u>y = -x² + 4</u>

See the attached figure.

4 0
3 years ago
Add 212+(−13) . Write your answer as a mixed number in simplest form.
nordsb [41]

The value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

According to the question,

We have the following expression:

212+(-13)

Now, we know that the multiplication of one negative and one positive integers is always positive.

So, we have the following expression:

212-13

199

Now, this number is whole number and it can not be written as a mixed number. It could only have been written as a mixed number when the result would have been in a fraction.

Hence, the value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

To know more about addition here

brainly.com/question/19867930

#SPJ1

7 0
7 months ago
The speed limit on a neighborhood road is 35 miles per hour. You can write the inequality s 35.
Maksim231197 [3]
The Answer is C
Hope I Helped

8 0
3 years ago
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polet [3.4K]

Answer:

I think it would be 9 meters.

Step-by-step explanation:

5x2=10

28-10=18

18(divided by)2=9 meters

3 0
2 years ago
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likoan [24]

Answer:

8n^2+10n-25

Step-by-step explanation:

it's probably wrong that's what I got tough xp

4 0
3 years ago
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