To find 40% of 75, Priya calculates 2/5⋅75. Does her calculation give the correct value for 40% of 75? Explain or show how you know

Answer:

-20r + 40

Step-by-step explanation:

-10(2r - 4)

-20r +40

Answer:

0.0882

Step-by-step explanation:

Given that:

Mean(m) = 281

Standard deviation (s) = 33

Probability of weight between 291 and 299 gram

Obtain the standardized score (Zscore):

P (X ≤ 291)

Zscore = (x - m) / s

Zscore = (291 - 281) / 33

Zscore = 10 / 33 = 0.303

P(Z ≤ 0.303) = 0.61906 (Z probability calculator)

P (X ≤ 299)

Zscore = (x - m) / s

Zscore = (299 - 281) / 33

Zscore = 18 / 33 = 0.5454

P(Z ≤ 0.5454) = 0.70726 (Z probability calculator)

Hence, probability of weight between 291 and 299 gram = 0.70726 - 0.61906 = 0.0882

Answer:

I don't see the diagram but if you're adding to 360 degrees than the answer is 90

Step-by-step explanation:

We are given:

Probability of passing = p

Probability of Failing = 6p²

__________________________________________________________

Finding the value of 'p':

We know that the sum of the probabilities of an event occurring and not occurring is 1

So, Probability of passing + Probability of Failing = 1

p + 6p² = 1

6p² + p - 1 = 0

We can see that we now have a quadratic equation

Splitting the middle term:

6p² + 3p - 2p - 1 = 0

3p(2p + 1) - (2p + 1) = 0

(3p - 1)(2p + 1) = 0                      [factoring out 2p + 1]

Now, we can either divide both sides by (3p-1) or by (2p + 1) and both the cases will give us different answers.

Dividing both sides by (3p - 1):

2p + 1 = 0/(3p-1)

2p + 1 = 0

p = -1/2

Dividing both sides by (2p+1):

(3p - 1) = 0 / (2p + 1)

3p - 1 = 0

p = 1/3

Now, we have 2 values of p: -1/2 and 1/3

Using the value: -1/2 will mean that the probabilities are negative

but we know that probabilities cannot be negative.

So, -1/2 is not a valid value for p

Therefore, the value of p is 1/3

Answer:

B because if u flip it it still spells PIP

Answer:  someone who is black to call a white or Caucasian a cracker isn’t really racits and it’s really depends on how it’s said for example I don’t like u cause u are a cracker is racits or as a white person saying I don’t like u because u chocolate is racist so it just depends on how u use it

Step-by-step explanation:

Answer:

16/21 dresses

Step-by-step explanation:

3/4 · k hours: 4/7 · k dresses for any constant k

If we want 1 hour, then k will need to be 4/3

4/3 × 4/3 hours: 4/7 × 4/3

1 hour = 16/21 dresses

Answer:2

Step-by-step explanation:

Answer:

This isn't an equation right?

Step-by-step explanation:um ...

Answer: C: {4,5,6,7,8}

Step-by-step explanation:

Answer:

(2g^2h^3)^(2g^2h^3) OR 4gg^4hh^9

Step-by-step explanation:

ummmmmmmmmmmmm 143 degrees (sorry for the um i needed 20 characters)

give me brain plz.

Answer:

a) x = 5

b) x = 4

Step-by-step explanation:

a) x = 5

You can get this with a calculator if you need by using the log function.

[tex]log_{2} 32 = x[/tex]

x = 5

b) x = 4

According to the product rule of exponents: [tex]a^{x} * a^{y} = a^{x + y}[/tex]

So, x + 11 = 15 --> x = 4

Answer:

Step-by-step explanation:

Answer:

the answer is A

Answer:

whats the question

Step-by-step explanation:

Answer:

Half life = 4.7 days

Step-by-step explanation:

Formula to get the final amount of the substance after the time 't',

[tex]N_t=N_0e^{-kt}[/tex]

Here, [tex]N_t[/tex] = Final amount of the substance

[tex]N_0[/tex] = Initial amount

k = decay constant

t = Duration or time

Now by substituting the values in the formula,

[tex]N_t=N_0e^{-0.1473t}[/tex]

If [tex]N_t=\frac{1}{2}(N_0)[/tex] [For half life]

[tex]\frac{1}{2}(N_0)=N_0e^{-0.1473t}[/tex]

[tex]\frac{1}{2}=e^{-0.1473t}[/tex]

[tex]2=e^{0.1473t}[/tex]

ln(2) = [tex]\text{ln}(e^{0.1473t})[/tex]

0.69315 = 0.1473t

t = 4.71 days

t ≈ 4.7 days

Therefore, half life of the substance is 4.7 days.

Answer:

4.7

Step-by-step explanation:

Answer:it’s 3y3 (x2 +4) (x +2 (x-2) hope this helps.

Step-by-step explanation:

Answer:

efng, pqsr

Step-by-step explanation:

PQRS

Step-by-step explanation:

since both  ABCD and PQRS have the same shape look but PQRS is bigger than ABCD

Answer:

Step-by-step explanation: The slopes of the line are most likely the same because they are parallel lines. Parallel lines always have the same slope as eachother.

Answer:

1.C

2.A

Step-by-step explanation:

Closed circle is =

Step-by-step explanation:

for number 1 the answer is the third line

for number 2 i believe the answer is the second line

hope it help

Answer:

Angle 5 and angle 6 are supplementary angles

Step-by-step explanation:

Angle 5 and 6 are both supplementary angles because angle 6 and 5 are linear pairs

Answer:

okayyyyy.... then

Step-by-step explanation:

Answer: No your name isnt OG??!!

Answer:

-74v

Step-by-step explanation:

uh-

Answer:

D or 1-(17/29)^4

Step-by-step explanation:

This is because you need to figure out the probability that a selected marble is not blue, which is (17/29)^4. Then you can calculate the probability that one of them is blue by taking this number, and subtracting it from 1. This results in 1-(17/29)^4.

The probability that at least 1 of the selected marbles is blue is  1 - ([tex]\frac{17}{29}[/tex])⁴.

Probability in simple terms is the chance of getting an event. Probability of any event can be found by number of likely outcomes divided by the total number of outcomes.

Probability with replacement means the events are independent. That is, the probability of first event does not depend on the second event.

For two independent events A and B,

P(A and B) = P(A) × P(B)

In the question,

Number of red marbles = 11

Number of blue marbles = 12

Number of white marbles = 6

Total number of marbles = 29

Four marbles are selected with each marble being replaced after each selection.

We have to find the probability that at least 1 of the selected marbles is blue. For that, first we find the probability of no marbles are blue.

P(no marbles are blue) = P(red marbles or white marbles)

                                      = Number of red and white marbles / total number                      

                                         of marbles

                                      = (11 + 6) / 29 = 17/29

P(no marbles are blue) for four takes =  [tex]\frac{17}{29}[/tex] ×  [tex]\frac{17}{29}[/tex] ×  [tex]\frac{17}{29}[/tex] ×  [tex]\frac{17}{29}[/tex]

                                                              =  ([tex]\frac{17}{29}[/tex])⁴

Total probability of a sample space is always 1.

So, the probability that at least 1 marble is blue = 1 -  ([tex]\frac{17}{29}[/tex])⁴.

Hence the probability that at least 1 of the selected marbles is blue is  1 - ([tex]\frac{17}{29}[/tex])⁴.

To learn more about Probability, click :

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Answer:

timed by 3

Step-by-step explanation:

[tex]\frac{3}{4} x 3 \frac{9}{12}[/tex]

then you get 9/12

but 3/4 is simplified

Step-by-step explanation:

5) 2 lines are perpendicular

slope of line 1 =3

slope of line 2= _1/3

6)perpendicular

Answer:

x=5

Step-by-step explanation:

-5x+6(5x-18)=17

-5x+30x-108=17

25x-108=17

25x=17+108

25x=125

x=5

Answer:

China

Step-by-step explanation:

China is still by far the biggest exporter of seafood, followed by Norway (see Figure 1). Both countries have added more than USD 2bn to their seafood exports in the last five years (2012 to 2017).

Answer:

china!

Step-by-step explanation: