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brilliants [131]
4 years ago
15

Find 4(6a−5)−(9a+1).

Mathematics
1 answer:
stira [4]4 years ago
4 0

Answer:

15a-21

Step-by-step explanation:

could be wrong though

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Answer:

You can’t solve but you can simplify to

3x^3-10x+1

Step-by-step explanation:

8 0
3 years ago
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What two trigonometric function can be divided to get cotangent?
mojhsa [17]

Answer:

the cotangent is = cos / sen or 1/ tan

6 0
3 years ago
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The area of a rectangle is 33 m2 ,
Vika [28.1K]

For this case we have that by definition, the area of ​​a rectangle is given by:

A = w * l

Where:

w: Is the width of the rectangle

l: is the length of the rectangle

According to the data of the statement we have:

A = 33 \ m ^ 2\\l = w-5

Substituting:

w (w-5) = 33\\w ^ 2-5w-33 = 0\\\\So:\\w = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}\\a = 1\\b = -5\\c = -33

Substituting the values:

w = \frac {- (- 5) \pm \sqrt {(- 5) ^ 2-4 (1) (- 33)}} {2 (1)}\\\\w = \frac {5 \pm \sqrt {25 + 132}} {2}}\\\\w = \frac {5 \pm \sqrt {157}} {2}}

Thus, we have two roots:

w_ {1} = \ frac {5+ \ sqrt {157} {2}} = 8.77

w_ {2} = \ frac {5+ \ sqrt {157} {2}} = - 3.77

We choose the positive value. So the width of the rectangle is approximately 8.77 meters and the length is 3.77 meters

Answer:

l = 3.77 \ m\\w = 8.77 \ m

5 0
4 years ago
Name: cuiusly thens
dlinn [17]

BTW,
KEY:
• exponents are going to be written as “^(x)”.
• if I put “huh” or “nope” or “what” (etc.) that means I don’t know how to solve it.

1. 49a
2.-15x^(2)+2y^(2)
3.-23a+2b+6
4. 0
5.-9c+3d
6. 4a+14b+c
7.-6a+2b+62
8.-3x+8
9. 16x^(2)-y+x+z
10.-6x
11.-8xy+2
12.-15a+3b
13. nah bruh
14. nope
15. 1.5a
16. -10a-2205
17. -4cd+55
18.-4x+2y+3
19. -67,209
20. huh?
21. what??
22. 18a+4b
23. 8y+3x+6
24.-2x+2y+6r+2
25. 4a^(2)+2a+2b+3
7 0
3 years ago
A water cup is shaped like a cone. It has a diameter of 3 inches and a slant height of 5 inches. About how many square inches of
koban [17]
Lateral Area = PI * radius * slant height
Lateral Area = 3.14159 * 1.5 * 5
Lateral Area = <span> <span> <span> 23.561925 </span> </span> </span>

The answer is 24 square inches.

Source:
http://www.1728.org/volcone.htm


3 0
3 years ago
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