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3 years ago

ILL MARK BRAINLIEST HELP PLEASE!!

Mathematics

1 answer:

Zanzabum3 years ago

7 0

Answer:

Step-by-step explanation:

19+27 = 46

46-19 = 27

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Express the following in standard form.

salantis [7]

To write in standard form, we have to move the decimal point in

3.42

over 3 places to the left since our exponent is 10 3

This gives us our answer of

0.00342

Hope this helps.

6 0

3 years ago

I need help is it A B C or D

Oksi-84 [34.3K]

The answer would be c.

3 0

3 years ago

Read 2 more answers

A small toy car costs $3.A large toy car costs 5 times as much as the small one.Aaron wants to buy one of each.Which equation ca

adell [148]

Answer:$18.00

Step-by-step explanation:5×3=15

$3+$15=$18

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3 years ago

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If A and B are independent events with P(A) = .5 and P(B) = .2, find the following:a) P(A U B)b) P(A^c ? B^c)c) P(A^c U B^c)**No

Effectus [21]

If A and B are independent, then $P(A\cap B)=P(A)P(B)$ .

$P(A\cup B)=P(A)+P(B)-P(A\cap B)=P(A)+P(B)-P(A)P(B)$

$P(A\cup B)=0.5+0.2-0.5\cdot0.2$

$\boxed{P(A\cup B)=0.6}$

b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:

$P(A^c\cap B^c)=P(A\cup B)^c=1-P(A\cup B)$

$P(A^c\cap B^c)=1-0.6$

$\boxed{P(A^c\cap B^c)=0.4}$

c. DeMorgan's law can be used here too:

$P(A^c\cup B^c)=P(A\cap B)^c=1-P(A\cap B)=1-P(A)P(B)$

$P(A^c\cup B^c)=1-0.5\cdot0.2$

$\boxed{P(A^c\cup B^c)=0.9}$

4 0

3 years ago

The equation of a line with slope m= - 1/4 and including point (-3, 5) is y= - 1/4 x - 4.

raketka [301]

Answer:

False

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

here m = - $\frac{1}{4}$ , hence

y = - $\frac{1}{4}$ x + c ← is the partial equation

to find c substitute (- 3, 5) into the partial equation

5 = $\frac{3}{4}$ + c ⇒ c = $\frac{17}{4}$

y = - $\frac{1}{4}$ x + $\frac{17}{4}$ ← equation of line

8 0

3 years ago