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Elodia [21]
3 years ago
9

Question in the image

Mathematics
1 answer:
Komok [63]3 years ago
8 0

Answer:

0.4

Step-by-step explanation:

consider this like some lines overlapping each other.

one line (A) is 0.5 long, the other (B) 0.4 long.

together they are 0.8 long.

that means that they overlap at a length of 0.1 (they share a segment 0.1 long).

of the combined line of 0.8 that has 0.1 of a joined segment, the complimentary part of B is therefore 0.4 (0.8 minus the original length of B).

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WILL MARK BRAINLIEST!!!!!!!!!!!!
aalyn [17]

Answer:

x+y=1+3

Step-by-step explanation:

6 0
3 years ago
Pls help trig question!!
s2008m [1.1K]

4\sin^2 x - 3 = 3 \sin x\\\\\implies 4\sin^2 x -3 \sin x  -3 =0\\\\\implies 4u^2 -3u -3 =0~~~~~~~~~~~~~~;[\text{Set} ~ \sin x = u]\\\\\implies u = \dfrac{-(-3) \pm \sqrt{(-3)^2 - 4\cdot 4 \cdot (-3)}}{2(4)}~~~~~~;[\text{Apply quadratic formula}]\\\\\\\implies u = \dfrac{3\pm\sqrt{57}}8\\\\\implies \sin x = \dfrac{3\pm\sqrt{57}}8~~~~~~;[\text{Substitute back}~ u = \sin x]\\\\\text{Now,}\\\\\sin x = \dfrac{3+\sqrt{57}}8\\\\\text{No solution for}~ x\in \mathbb{R}  ~\text{Since}~ -1\leq \sin x \leq 1\\

\sin x = \dfrac{3 - \sqrt{57}}8\\\\\implies x = n\pi + (-1)^n \sin^{-1} \left(\dfrac{3-\sqrt{57}}8\right)\\\\\\\text{ When n = 1,2 and}~  [0,2\pi]},\\\\\\x= \pi - \sin^{-1} \left(\dfrac{3-\sqrt{57}}8 \right)~ \text{and} ~x =  2\pi + \sin^{-1} \left(\dfrac{3-\sqrt{57}}8 \right)\\\\\text{In decimal,}\\\\x= 3.75~~~~ \text{and}~~~ x =5.68

5 0
2 years ago
3.
Ostrovityanka [42]

Answer:

110÷360×π×4.6^(2)= 20.312

Step-by-step explanation:

Area of sector = angle / 360 x π x r^(2)

8 0
3 years ago
Identify the terms of the expression and their coefficients
Vera_Pavlovna [14]

Answer:

Terms: 4x, -\frac{x}{2}

Coefficients: 4, \frac{1}{2}

Step-by-step explanation:

The terms of an expression are the numbers and variables that are being added. In this expression 4x is being added to -\frac{x}{2}. This means that they must be the terms. The coefficients are the constants that come before a variable. A variable is an unknown number represented by a letter, in this case, x. So the coefficients are 4 and \frac{1}{2} because both these numbers are being multiplied by a variable.

8 0
3 years ago
HELP THE CORRECT ANSWER ILL GIVE BRAINLIEST (if u don’t know it don’t answer)
Nat2105 [25]

Answer:

adam

Step-by-step explanation:

adam: 15 ft/s

noah: 14.975 ft/s (to get this answer divide ft by secs)

jake: 13.75 ft/s

1 mile = 5,280ft

liz: 11.116 ft/s

5 0
4 years ago
Read 2 more answers
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