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4 years ago

PLEASE HELP ME I DONT KNEO HOW TO DO IT

Mathematics

1 answer:

just olya [345]4 years ago

7 0

You learn more from failure than from success. Don’t let it stop you. Failure builds character.

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Write the equation of the line passing through (-3,4) and perpendicular to -2x+7y=-3.

mario62 [17]

your answer would be y= -2/7x + 4

4 0

3 years ago

Solve the following equation for 0° ≤ θ < 360°. Use the "^" key on the keyboard to indicate an exponent. For example, sin2x w

never [62]

Answer-

$\boxed{\boxed{x=90^{\circ},270^{\circ}}}$

Solution-

The given equation-

$\Rightarrow 2\sin^2 x-\cos^2 x-2=0$

$\sin^2 x+\cos^2 x=1\ \ \Rightarrow \cos^2 x=1-\sin^2 x$

Putting this,

$\Rightarrow 2\sin^2 x-(1-\sin^2 x)-2=0$

$\Rightarrow 2\sin^2 x-1+\sin^2 x-2=0$

$\Rightarrow 3\sin^2 x-3=0$

$\Rightarrow 3\sin^2 x=3$

$\Rightarrow \sin^2 x=1$

$\Rightarrow \sin x=\sqrt1$

$\Rightarrow \sin x=\pm 1$

$\Rightarrow \sin x=1,\ \sin x=-1$

$\Rightarrow x=\sin^{-1}(1),\ x=\sin^{-1}(-1)$

$\Rightarrow x=90^{\circ}+n360^{\circ},\ x=270^{\circ}+n360^{\circ}$

Where n=0, 1, 2, ......

As given 0° ≤ x < 360°, so putting n = 0

$\Rightarrow x=90^{\circ},\ x=270^{\circ}$

3 0

4 years ago

PLEASE HELP WILL GIVE OUT BRAINLEYST MATHH PEOPLE HELP

Umnica [9.8K]

Answer its 82 i added the cm

3 0

3 years ago

A sequence of numbers is shown below :

Molodets [167]

Answer:

95 is not a term here as the next verse should be 98 as it is a 94 term in this pattern

3 0

3 years ago

Read 2 more answers

Tamara needs to buy motor oil to fill the 3 empty cylindrical barrels at her oil service center. Each barrel is 7 ft deep and ha

aev [14]

The total volume of the three cylinders is given by:
V = (3) * (pi) * (r ^ 2) * (d)
Where,
r: cylinder radius
d: cylinder depth
Substituting values we have:
V = (3) * (3.14) * (4 ^ 2) * (7)
V = 1055.04 feet ^ 3
Answer:
the volume of oil needed is:
V = 1055.04 feet ^ 3

7 0

4 years ago