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2 years ago

6) Evaluate for x = 3: 3•4x/2

Mathematics

1 answer:

Nikolay [14]2 years ago

5 0

Answer:

Step-by-step explanation:

3×4(x)/2

Plug in 3 to x

3×4(3)/2

3×12/2

36/2

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Eje cartesiano y=-x+7 2

victus00 [196]

Answer:

Step-by-step explanation:

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2 years ago

URGENT HELP PLEASE!

Vaselesa [24]

Answer:

(a) $x=\dfrac{\pi}{8},\dfrac{3\pi}{8},\dfrac{9\pi}{8},\dfrac{11\pi}{8}$

(b) $x=\dfrac{3\pi}{2},\dfrac{\pi}{6},\dfrac{5\pi}{6}$

Step-by-step explanation:

It is given that $0\leq x\leq 2\pi$ .

(a)

$\sqrt{2}\sin 2x=1$

$\sin 2x=\dfrac{1}{\sqrt{2}}$

$\sin 2x=\dfrac{\pi}{4}$

$2x=\dfrac{\pi}{4},\dfrac{3\pi}{4},\dfrac{9\pi}{4},\dfrac{11\pi}{4}$ $[\because \sin x=\sin y\Rightarrow x=n\pi+(-1)^ny]$

$x=\dfrac{\pi}{8},\dfrac{3\pi}{8},\dfrac{9\pi}{8},\dfrac{11\pi}{8}$

(b)

$\csc^2 x-\csc x-2=0$

$\csc^2 x-2\csc x+\csc x-2=0$

$\csc x(\csc x-2)+1(\csc x-2)=0$

$(\csc x+1)(\csc x-2)=0$

$\csc x=-1\text{ or }\csc x=2$

$\sin x=-1\text{ or }\sin x=\dfrac{1}{2}$ $[\because \sin x=\dfrac{1}{\csc x}]$

$x=\dfrac{3\pi}{2}\text{ or }x=\dfrac{\pi}{6},\dfrac{5\pi}{6}$

Therefore, $x=\dfrac{3\pi}{2},\dfrac{\pi}{6},\dfrac{5\pi}{6}$ .

5 0

2 years ago

Emily bought some ice cream cones which cost $24. she paid $m and got back $6 of change. Find m

maria [59]

Answer:

m = 30

Step-by-step explanation:

total = 24

m = amount paid

change = 6

m - 6 = 24

+6 +6

m = 30

Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!

-Lil G

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2 years ago

What is 65.97 rounded to the nearest square inch

ss7ja [257]

Answer:

Step-by-step explanation:

have a great day

3 0

2 years ago

32/5 as a whole number

Tcecarenko [31]

6.4 because you divide 32 by 5

5 0

2 years ago

Read 2 more answers