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stira [4]
3 years ago
13

13) In the proof: STATEMENT: Z1 = Z2 REASON: 13)

Mathematics
1 answer:
jonny [76]3 years ago
6 0

Answer:

tsk i cant help u bud :(

Step-by-step explanation:

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4. A surveying team needs to measure the distance across the lake. They make the measurements shown along the ground. What is th
Nataliya [291]

Applying the Law of Cosines, the distance across the lake is: 2.1 miles.

<h3>What is the Law of Cosines?</h3>

Law of Cosines is given as:  c² = a² + b² - 2(a)(b)cos(C).

The diagram showing the measurements along the ground is in the attachment below.

Given:

  • a = 2.82 miles
  • b = 3.11 miles
  • C = 40.3°
  • c = distance across the lake.

Applying the Law of Cosines, we have:

c² = 2.82² + 3.11² - 2(2.82)(3.11)cos(40.3)

c² = 4.25

c = √4.25

c = 2.1 miles

Thus, applying the Law of Cosines, the distance across the lake is: 2.1 miles.

Learn more about Law of Cosines on:

brainly.com/question/4372174

8 0
3 years ago
7. Find the slope of the line that passes through the two given points. (-2,-1) and<br> (-4,-7)
serious [3.7K]

Answer:

3

Step-by-step explanation:

m = \frac{-1 - (-7)}{-2 - (-4)} = \frac{-1 +7}{-2 + 4} \\m = \frac{6}{2}\\m = 3

6 0
3 years ago
How do you do this question?
katen-ka-za [31]

Answer:

0

Step-by-step explanation:

∫ sin²(x) cos(x) dx

If u = sin(x), then du = cos(x) dx.

∫ u² du

⅓ u³ + C

⅓ sin³(x) + C

Evaluate between x=0 and x=π.

⅓ sin³(π) − ⅓ sin³(0)

0

7 0
4 years ago
Read 2 more answers
Greg is 10 years older than his brother gabe.he is also 3 times as old as gabe.how old is gabe
Elza [17]

Answer:

The answer is below

Step-by-step explanation:

Let us assume that the age of Greg's brother (Gabe) is x years, and let Greg's age by y years. Since Greg is 10 years older than his brother gabe, then:

y = x + 10           (1)

Also. Greg is 3 times as old as Gabe, hence:

y = 3x                 (2)

From equation 1 and equation 2:

y = x + 10 = 3x

Hence:

3x = x + 10

Subtracting x from both sides gives:

3x - x = x + 10 - x

2x = 10

Dividing by 2:

2x/2 = 10/2

x = 5 years

y = x + 10 = 5 + 10 = 15 years

Therefore Gabe is 5 years old and Greg is 15 years old

8 0
3 years ago
Given: ΔXYZ AB is a midsegment parallel to XY. The slope of AB is 2 3 . What is the slope of XY?
Bezzdna [24]
The slope of XY is the same as the slope of AB because AB is parallel to XY and parallel lines have the same slope.
7 0
4 years ago
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