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2 years ago

8

Can anyone help on this?? It’s due tomorrow!!

1 answer:

olchik [2.2K]2 years ago

3 0

Answer: BXC =70°

Step-by-step explanation:

XBC= isosceles so XBC=XCB

XBC=55° (isosceles triangle)

BXC+XBC+XCB=180° (angles in a triangle =180°)

BXC=180°- (55°+55°)

BXC=180°-110°

BXC=70°

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DON'T ANSWER FREE POINTSSSS

steposvetlana [31]

Answer:

$\boxed{n = -13 - 4i}$

Step-by-step explanation:

$\text{Assuming } i=\sqrt{-1}$

$(13 + 4i) + n = 0$

$n = -(13 + 4i)$

$\boxed{n = -13 - 4i}$

3 0

3 years ago

Read 2 more answers

Which of the following are solutions to the following equation?

Alecsey [184]

Answer:

x=-7

x=7

Step-by-step explanation:

we have

$2x^{2}-98=0$

Solve for x

Adds 98 both sides

$2x^{2}-98+98=0+98$

$2x^{2}=98$

Divide by 2 both sides

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8 0

3 years ago

A professor pays 25 cents for each blackboard error made in lecture to the student who pointsout the error. In a career ofnyears

arsen [322]

Answer:

The correct answer is "0.0000039110".

Step-by-step explanation:

The given values are:

$Y_n\rightarrow N(\mu, \sigma^2)$

$\mu = 40n$

$\sigma^2=100n$

$n=20$

then,

The required probability will be:

= $P(Y_{20}>1000)$

= $P(\frac{Y_{20}-\mu}{\sigma} >\frac{1000-40\times 20}{\sqrt{100\times 20} } )$

= $P(Z>\frac{1000-800}{44.7214} )$

= $P(Z>\frac{200}{44.7214} )$

= $P(Z>4.47)$

By using the table, we get

= $0.0000039110$

6 0

2 years ago

The variable y varies directly with the variable x.

Ivan

Answer:

D answer to dis question is 21

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2 years ago

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Answer: 112 people.

Step-by-step explanation:

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3 years ago

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