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2 years ago

Need help! Show work

Mathematics

1 answer:

Sergeu [11.5K]2 years ago

8 0

The first step for each of these is adding or subtracting the coefficient to isolate your terms with variables. And then divide to isolate the variable itself.

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A number k is at least 5. Write this word sentence as an inequality.

andrew11 [14]

Answer:

k ≥ 5

Step-by-step explanation:

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2 years ago

Identify the figure and denote it by its appropriate symbol

Gekata [30.6K]

B: ray
Rays are a linear formation that start at a point and continue forever in a direction. The photo shows a point on one end, and an arrow on the other indicating that it starts at the point and continues forever past the arrow.

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1 year ago

The probability of event A is x, and the probability of event B is y. If the two events are independent, which of these conditio

zzz [600]

If two events are independent, then

$Pr(A\cap B)=Pr(A)\cdot Pr(B)$ .

Use formulas for conditional probabilities:

$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)},\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}$ .

For independent events these formulas will be:

$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(B)}=Pr(A),\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(A)}=Pr(B)$ .

Now in your case $Pr(A)=x,\ Pr(B)=y$ and $Pr(A|B)=x,\ Pr(B|A)=y, Pr(A\cap B)=x\cdot y$ .

This shows that the only correct choice is A.

5 0

3 years ago

Read 2 more answers

The production of what number and 7 is less than 49

MArishka [77]

Many numbers, when multiplied by $7$ , are less than $49$ . We can find an inequality for numbers $x$ that are sufficient.

Clearly, $7x < 49$ is the desired inequality. We divide by 7 to find that $x < 7$ determines working numbers.

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2 years ago

I need help finding functions

velikii [3]

Answer:

y= 7
y= -3
y= -4
y= -8

Step-by-step explanation:

y= -5x+1

=-5.-1+1

Now you can do this method

3 0

2 years ago