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Ronch [10]
2 years ago
6

What is the answer to (-2x-1)-(x-7)

Mathematics
1 answer:
Ray Of Light [21]2 years ago
6 0
(-2x-1)-(x-7)
-2x-x+7-1
-3x+6
-3x=-6
x=2
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Regis leans a 10-foot ladder against a wall. The base of the ladder makes a 65 angle with the ground.
hammer [34]

The distance, In feet, from the base of the ladder to the base of the wall is 4.2 ft.

He needs to move the ladder 0.1 ft closer to the base of the building.

The situation forms a right angle triangle.

<h3>Right angle triangle</h3>

Right angle triangle has one of its angles as 90 degrees. The sides and angle can be found using trigonometric ratios.

The length of the ladder is the hypotenuse of the triangle formed. Therefore, the distance, In feet, from the base of the ladder to the base of the wall can be calculated as follows;

cos 65° = adjacent / hypotenuse

cos 65° = d / 10

d = 10 × 0.42261826174

d = 4.22618261741

d = 4.2 ft

She needs to move the ladder so it reached a window 9.6 feet above the ground. Therefore, the distance from the base of the ladder and the wall is as follows;

cos 65 = d / 9.6

d = 9.6 × 0.42261826174

d = 4.05696

d = 4.1

Therefore, he needs to move the ladder 0.1 ft closer to the building.

learn more on right angle triangle here: brainly.com/question/14988069

8 0
2 years ago
26,862÷407= <br> PLZZZZ HELPPP
tino4ka555 [31]
26,862 divided by 407 is 66

Here's the long division way that shows how you get 66

7 0
2 years ago
Please help me with these questions. I’m genuinely confused.
jok3333 [9.3K]

Answer:

16. 1 4/5

17. 2 2/3

18. 4/11

19. 4 1/2

20. 4/7

21. 1/2

22. 1 2/5

23. 2 1/2

24. 4 2/3

Step-by-step explanation:

1. subtract whole numbers first

2. subtract fractions next (simplify if you can)

3. subtract fractions and whole numbers

8 0
2 years ago
Look at the graph shown below:
skelet666 [1.2K]

Answer:

A

Step-by-step explanation:

y=3/4x+4 best represents the line shown below. Because the slope of this graph is 3/4, and the y-intercept is positive 4. Remember that slope=rise/run. You can find the slope very easily by counting, 3 upwards and 4 rightwards.

3 0
3 years ago
What is the value of x?<br><br> a. 25<br> b. 12<br> c. 7<br> d. 5
s2008m [1.1K]
A^2+b^2=c^2
4 squared and 3 squared =25
square root of 25 is 5
answer is d
6 0
3 years ago
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