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mash [69]
3 years ago
14

If the tree cast a shadow of 40 feet, how tall is the tree? A. 30 feet. B.35 ft. C.40 ft. D.45 ft.

Mathematics
2 answers:
Juliette [100K]3 years ago
7 0

Answer:

A)30feet

Step-by-step explanation:

NemiM [27]3 years ago
3 0

Answer:

  • A. 30 feet

Step-by-step explanation:

This is a right triangle

<u>Using Pythagorean theorem we can find the height:</u>

  • x² + 40² = 50²
  • x² = 2500 - 1600
  • x² = 900
  • x = √900
  • x = 30 ft

Option A is correct

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1. Add or Subtract. Show your work
Sav [38]

QUESTION 1a.

We want to add

( - 2 {x}^{2}  - 4x + 13) + (12 {x}^{2}  + 2x - 25)

We group similar terms to get

- 2 {x}^{2}  + 12 {x}^{2}- 4x + 2x   - 25 + 13

Simplify:

- 10{x}^{2} - 2x  -12

QUESTION 1b.

The given function is:

(7x^2+4x-26)-(-7x^2-3x+15)

Expand the parenthesis to obtain,

7x^2+4x-26 + 7x^2 + 3x - 15

Group similar terms,

7x^2+7 {x}^{2}  + 4x + 3x-26  - 15

Simplify:

14{x}^{2}  + 7x-41

QUESTION 2

The given function is

f(n)=n^2-6n-16

The zeros of this function is given by;

n^2-6n-16 = 0

Split the middle term.

n^2-8n + 2n-16 = 0

Factor;

n(n - 8) + 2(n - 8) = 0

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4 0
3 years ago
Question 3 of 5
arlik [135]
I took a look at the picture and the right answer for this question would be A
4 0
3 years ago
Read 2 more answers
Can anyone help? thanks in advance!
Kipish [7]

Answer:

B(2,4)

Step-by-step explanation:

A(-1,-9)

M(0.5,-2.5)

with M we can find x₂ and y₂

x = 0.5

x = x₁+x₂/2

0.5 = (-1 + x₂)/2

(x₂ -1)/2 = 0.5

x₂-1=0.5×2

x₂-1=1

x₂=2

for y₂

y= -2.5

y=(y₁+y₂)/2

y=(-9+y₂)/2

-2.5=(-9+y₂)/2

-9+y₂=-2.5×2

-9+y₂=-5

y₂=-5+9

y₂=4

.: coordinates are B(2,4).

6 0
3 years ago
PLEASE HELP ME I DONT UNDERSTAND
miss Akunina [59]

Answer:

vhtc7g6f

Step-by-step explanation:

v7grauvi5c7v6v7g8h

3 0
3 years ago
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padilas [110]

Answer:

A

Step-by-step explanation:

The function has vertical asymptotes at x=7 and x=-3, so the denominator needs to have factors (x-7) and (x+3).

This eliminates all the options except for A.

3 0
2 years ago
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