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3 years ago

I need help:( 5pts each i will have 1002 pts after this

Mathematics

2 answers:

sesenic [268]3 years ago

4 0

Answer:

Is a less than or greater than b?

Is c less than or greater than b?

Step-by-step explanation:

Since we already know that both a and b are less than 0, they will be to the left of the 0 marker on the numberline. All you need to know is which is greater or smaller.

The same goes for c and d. Both are greater than 0 so they will be to the right of the 0 marker on the numberline. All you need to know is which is greater or smaller.

BartSMP [9]3 years ago

3 0

Answer:

thanks, i will let duckmankingdom give you the brainliest!

Step-by-step explanation:

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Jolie uses 2 tomatoes every day to prepare her salad. If n equals the number of tomatoes Jolie had before she made her salad and

Tpy6a [65]

The answer is c = n - 2

n - the number of tomatoes before the salad is made
c - the number of tomatoes after the salad is made

<span>Jolie uses 2 tomatoes (n - 2) every day to prepare her salad and then c tomatoes remained: n - 2 = c
</span>Or:
c = n - 2

6 0

3 years ago

Read 2 more answers

Find the next three terms in the geometric sequence 2, -4, 8, -16,...

blagie [28]

Answer: 32, -64, 128, -256

8 0

4 years ago

Kate begins solving the equation StartFraction 2 Over 3 EndFraction left-parenthesis 6 x minus 3 right-parenthesis equals StartF

zubka84 [21]

Answer:

(B)The equation has one solution: x = 0.

Step-by-step explanation:

The equation Kate is solving is: $\dfrac{2}{3} (6x-3)=\dfrac{1}{2}(6x-4)$

$\dfrac{2(6x-3)}{3}=\dfrac{(6x-4)}{2}\\\dfrac{2*3(2x-1)}{3}=\dfrac{2(3x-2)}{2}\\4x-2=3x-2\\$Adding two both sides$\\4x=3x\\4x-3x=0\\x=0$

Therefore, the equation has one solution: x = 0.

4 0

4 years ago

A stack of cards consists of seven red and four blue cards. A second stack of cards consists of eleven red cards. A stack is sel

Ann [662]

Answer:

0.1733 = 17.33% probability the first stack was selected.

Step-by-step explanation:

To solve this question, it is needed to understand conditional probability, and the hypergeometric distribution.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Conditional probability:

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

Probability of all red cards for the first stack:

For this, we use the hypergeometric distribution, as the cards all chosen without replacement.

7 + 4 = 11 cards, which means that $N = 11$ .

7 red, which means that $k = 7$

3 are chosen, which means that $n = 3$

We want all red, so we find P(X = 3).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,11,3,7) = \frac{C_{7,3}*C_{4,0}}{C_{11,3}} = 0.2121$

Conditional probability:

Event A: All red

Event B: From the first stack.

Probability of all red cards:

0.2121 of 50%(first stack)

1 of 50%(second stack). So

$P(A) = 0.2121*0.5 + 1*0.5 = 0.60605$

Probability of all red cards and from the first stack:

0.21 of 0.5. So

$P(A \cap B) = 0.21*0.5 = 0.105$

What is the probability the first stack was selected?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.105}{0.60605} = 0.1733$

0.1733 = 17.33% probability the first stack was selected.

4 0

3 years ago

The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest

True [87]

Well, this is simple.
I=PRT
(Interest= Principle*Rate*Time)
So, simply divide both sides by PR
T=I/PR

Your answer is C: <span>T = I divided by the quantity P times R
(This should have been represented as: T= I/PR)

~Hope this helps m8

</span>

3 0

3 years ago