Find the value of x! First person to correctly respond gets brainliest!!

Mathematics

1 answer:

Nataly_w [17]3 years ago

4 0

Answer:

180-33 = 147

Step-by-step explanation:

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The point-slope form of the equation of the line that passes through (–9, –2) and (1, 3) is y – 3 = (x – 1). What is the slope-i

bulgar [2K]

(-9,-2) (1,3)
slope = (3 - (-2) / (1 - (-9) = 5/10 = 1/2

y - y1 = m(x - x1)
slope(m) = 1/2
(1,3)...x1 = 1 and y1 = 3
sub
y - 3 = 1/2(x - 1)
y - 3 = 1/2x - 1/2
y = 1/2x - 1/2 + 3
y = 1/2x - 1/2 + 6/2
y = 1/2x + 5/2 <=== slope intercept form

8 0

3 years ago

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Evaluate sin105° using the sum and differences identities underdstanding 105°=45°+60°

Galina-37 [17]

$\bf \textit{Sum and Difference Identity}
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sin(\alpha + \beta)=sin(\alpha)cos(\beta) + cos(\alpha)sin(\beta)\\\\
-------------------------------\\\\
sin(45^o+60^o)\implies sin(45^o)cos(60^o)+cos(45^o)sin(60^o)
\\\\\\
\cfrac{\sqrt{2}}{2}\cdot \cfrac{1}{2}+\cfrac{\sqrt{2}}{2}\cdot \cfrac{\sqrt{3}}{2}\implies \cfrac{\sqrt{2}}{4}+\cfrac{\sqrt{6}}{4}\implies \cfrac{\sqrt{2}+\sqrt{6}}{4}$

check your Unit Circle for those angles.

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3 years ago

A sphere has a radius of 6 meters. A second sphere has a radius of 3 meters. What is the difference of the volumes of the sphere

Naily [24]

Answer:

Step-by-step explanation:

volume of sphere = (4/3)πr³

Difference= [(4/3)*π*6³]-[(4/3)*π*3³]

$=\pi*[(\frac{4}{3}*6*6*6) - (\frac{4}{3}*3*3*3)]\\\\=\pi*[(4*2*6*6)-(4*3*3)]\\\\=\pi *[288-36]\\\\=252\pi$