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BabaBlast [244]
3 years ago
6

Need help on These 2 questions

Mathematics
2 answers:
just olya [345]3 years ago
6 0
Twenty seven minus ten plus four



Because according to pendas parentheses come first before adding subtracting and multiplying!
HACTEHA [7]3 years ago
4 0

Answer:

so the answer to the bottom problem is 69

hope this helped i use desmos scientific counculator

- the chair with internet

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Similar triangles ... help?
jolli1 [7]

Answer:

The second answer

XYZ-RQS

Step-by-step explanation:

8 0
3 years ago
Yotimo has 9 dogs that pull his sled. During winter, he puts 4 boots on each dog so their feet are protected from the snow. How
Temka [501]

Answer:

36

Step-by-step explanation:

6 0
3 years ago
Complete the square x^2-10=16<br><br>​
Hatshy [7]

Answer:

(x - 5)² = 41

Step-by-step explanation:

* Lets revise the completing square form

- the form x² ± bx + c is a completing square if it can be put in the form

 (x ± h)² , where b = 2h and c = h²

# The completing square is x² ± bx + c = (x ± h)²

# Remember c must be positive because it is = h²

* Lets use this form to solve the problem

∵ x² - 10x = 16

- Lets equate 2h by -10

∵ 2h = -10 ⇒ divide both sides by 2

∴ h = -5

∴ h² = (-5)² = 25

∵ c = h²

∴ c = 25

- The completing square is x² - 10x + 25

∵ The equation is x² - 10x = 16

- We will add 25 and subtract 25 to the equation to make the

 completing square without change the terms of the equation

∴ x² - 10x + 25 - 25 = 16

∴ (x² - 10x + 25) - 25 = 16 ⇒ add 25 to both sides

∴ (x² - 10x + 25) = 41

* Use the rule of the completing square above

- Let (x² - 10x + 25) = (x - 5)²

∴ (x - 5)² = 41

3 0
3 years ago
A ship travels due west for 90 miles and turns to travel 80 miles in the northwest direction at a 120 degree angle. How far is t
adoni [48]
We breakdown the components of the distances.
(1) 90 miles west.
                          x - component = -90 miles
                          y - component = 0 miles
(2) 80 miles, northwest (120°)
                          x - component = (80 miles)*(sin 30°) = 40 miles (negative)
                          y - component =(80 miles)*(cos 30°) = 69.282 miles (positive)

Solve for the distance,
                                 √(-90 - - 40)² + (69.282 miles)²  = <em>147.31 miles</em>
6 0
4 years ago
There are 17 trees along the road from Basil's home to a swimming pool. On his way way to and from a swim Basil marks some trees
morpeh [17]

Answer:

Number of trees not marked is 6

Step-by-step explanation:

Base on the scenario been described in the question, we can find the solution in the file attached

4 0
3 years ago
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