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3 years ago

If I calculate the probability of an event and it turns out to be -0.7, 1

Mathematics

2 answers:

taurus [48]3 years ago

7 0

Answer:

i made a mistake

Step-by-step explanation:

i had the same question and my teacher helped

Maksim231197 [3]3 years ago

4 0

Answer:

The answer is "I made a mistake."

Step-by-step explanation:

Well you can't really have a negative probability, you will always have a 0 probability or higher.

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Evaluate the expression: 5.10^2+3

Kruka [31]

Answer:

29.01

Step-by-step explanation:

5.10^2+3

(5.1*5.1)+3

26.01+3

29.01

4 0

3 years ago

Two angles o a triangle each measure 70 degrees what is the measurement of the third angle in degrees

hjlf

The 3 angles of a triangle, when added, = 180 degrees

so if 2 of them are 70.....70 + 70 = 140
then the 3rd will be 180 - 140 = 40 degrees <==

7 0

3 years ago

20 points

CaHeK987 [17]

Answer:

!!!

Step-by-step explanation:

7 0

2 years ago

What value of x satisfies

LenaWriter [7]

Answer:

See explanation

Step-by-step explanation:

The given trigonometric equation is $cos(90-x)=-\frac{\sqrt{3} }{3}$ .

We take the inverse cosine of both sides to get:

$90-x=cos^{-1}(-\frac{\sqrt{3} }{3})$

$90-x=125$

$x=125-90$

$x=-35\degree=325\degree$ to the nearest degree

None of the options satisfies the given equation.

But if the question is actually;

$cos(90-x)=-\frac{\sqrt{3} }{2}$

Then;

$90-x=\cos^{-1}(-\frac{\sqrt{3} }{2})$ .

$90-x=210$ .

$x=-120\degree$ .

$x=360-120=240\degree$ .

In this case the answer will be B

5 0

3 years ago

Read 2 more answers

Find the value of x and y Please help me. Thank you

STatiana [176]

Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

3A=180

A=180/3=60°

as the angles are equal so sides are equal.

16+y=46

y=46-16=30

applying sine formula

$\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ$

z+x=60

40+x=60

x=60-40=20°

5 0

3 years ago