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marshall27 [118]
3 years ago
10

I put a ladder 1.5m away from a tree. the ladder is inclined at 70 degrees about the horizontal. What is the height of the tree?

​
Mathematics
1 answer:
lyudmila [28]3 years ago
8 0

Answer:

4.121216129m

Step-by-step explanation:

use sohcahtoa

tan(70) x 1.5m = 4.121216129m

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PLEASE help i only have 2 more questions on the same concept! and i still cant get it right :(
Law Incorporation [45]

Answer:

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4 0
3 years ago
When solving for x, what is x squared plus 15 equals -8x
VLD [36.1K]

Answer:

x = - 5, x = - 3

Step-by-step explanation:

Given

x² + 15 = - 8x ( add 8x to both sides )

x² + 8x + 15 = 0 ← in standard form

Consider the factors of the constant term (+ 15) which sum to give the coefficient of the x- term (+ 8)

The factors are 5 and 3, since

5 × 3 = 15 and 5 + 3= 8, thus

(x + 5)(x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x + 3 = 0 ⇒ x = - 3

5 0
3 years ago
Find the equation of the tangent line at the point (1, 6). for y = 4 + 4x2 - 2x3.
Lostsunrise [7]
y = 4 + 4 x^{2}-2x^{3}  Lets \ write \ it \ y = -2 x^{3} +4 x^{2} +4

The tangential line at a certain point is just the derivative so.
y ' = -6 x^{2} +8x. At the point (1,6) we plug the x value in and get the slope at the point (y ' = 2)

The tangential line at that point is
y - 6 = 2(x - 1)     (this is the answer)

6 0
3 years ago
Shara brought 3 bags of chocolate candies for $1.25 each and 3 bags of gummy bears for $2.00 each. How much did she spend in all
Rashid [163]

Answer:

Equation: 3(1.25) + 3(2.00)=M

answer:9.75


Step-by-step explanation:


5 0
3 years ago
Solve This Equation 5x - 5 = 50
Black_prince [1.1K]
X=11
All you have to do is add 5 to both sides and then divide by 5 on both sides
7 0
4 years ago
Read 2 more answers
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