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Aneli [31]
2 years ago
8

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

Mathematics
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

2x^{2}/2=98/2

x^{2}=49

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The solutions are

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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:

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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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Answer: 112 people.

Step-by-step explanation:

6 0
3 years ago
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