Mary and Frank have two bags in front of them. Mary’s bag has 4 marbles; blue, yellow, red and green. Frank’s bag has 3 marbles; purple, orange, and pink. They will pick from their bag at the same time. What is the probability of Mary selecting red from her bag and Frank selecting purple from his bag?

Answer:

[tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

the value of the required slope can be calculated from:

[tex]s=\frac{y_1-y_2}{x_1-x_2};[/tex]

[tex]s=\frac{10-8}{2-5};[/tex]

finally,

[tex]s=-\frac{2}{3}.[/tex]

Note, the suggested option is not the only one.

Answer:

As below

Step-by-step explanation:

we want to know  how long it took to fly  so make two equations and set them equal to each other using the variable t

so, use  d = r*t   where d= distance , r= rate ( speed) and t = time  

w= wind velocity (speed with direction)

1500=(w+550)*t

1000=(-w+550)*t

now make both equations with respect to t

1500/(w+550) = t

1000/(-w+550) = t

since they are both equal to t,  where t is the same amount of flying time, set the two equations equal to each other

1500/(w+550) = 1000/(-w+550)

now solve for w

1500w + 825,000 = -1000w+550,000

2500w= -275,000

w = - 110

the wind speed is 110 opposite of the planes direction but also, if the plane flies in the other direction with it.  

wind velocity (velocity is speed with a direction )   is 110 MPH

they are asking for speed, b/c we don't know anything about direction... that is which direction is the plane headed during it's flight therefore we also can't say anything about the   wind direction either.  :|

Answer:

100cm

Step-by-step explanation:

I hope this help:)

Answer:

35 square cm

Step-by-step explanation:

Square area: 5 cm x 5 cm = 25 square cm.

Triangle area: 4 cm x 5 cm / 2 = 10 square cm.

25+10=35 square cm.

Answer:

4+6

answer is 10

simple.

Answer:

The correct answer is yes, we can draw an isosceles triangle with only one 40° angle. NO this is not the only possibility.

Step-by-step explanation:

plz mark brainliest

Answer:

arrow A

Step-by-step explanation:

6 out of 30 or 1/5 which is arrow A

Answer:

48 is the answer because if you were to have been remembering past questions that has that same picture but answered it would be 48

Answer:

This is false

Step-by-step explanation:

A natural number is an integer greater than 0. Natural numbers begin at 1 and increment to infinity: 1, 2, 3, 4, 5, etc.

Answer:

8.85

Step-by-step explanation:

You can rewrite 8.8 as 8.80. You can rewrite 8.9 as 8.90. Halfway between 8.80 and 8.90 is 8.85.

Hope this helps! Thanks for brainliest! :D

Answer:

8.85

Step-by-step explanation:

Go to the hundreths place

Answer: i don't no the answer, but do u go to connexus acadeny

Step-by-step explanation:

Answer:

$1506.75 earned by working 21 hours of the month

Step-by-step explanation:

$71.75 ($ per hour) x 21 (hours) = $1506.75 (total earned for working 21 hours)

I hope this helps :)

Answer:

(5, 3)

Step-by-step explanation:

Answer:

Slope: -2

y-intercept: -3 or (0, -3)

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

6x+3y= -9

3y = -6x - 9

y = -2x - 3

Answer:

6(7a + 9b) = 3(14a + 18b)

Step-by-step explanation:

We need to find the equivalent expression for the given expression i.e. 6(7a + 9b).

We can use the distributive property here such that,

a(b+c) = ab + ac

We have, a = 6, b = 7 and c = 9

6(7a + 9b) = 6(7a) + 6(9b)

= 42a + 54b

or taking 3 common from the above expression.

= 3(14a+18b)

Hence, the correct option is (a).

Răspuns:

7/5;

2 întreg 5/12

Explicație pas cu pas:

6/7 × (2 numere întregi și 5 / 6-1 numere întregi și 1/5)

6/7 * (2 5/6 - 1 1/5)

6/7 * (17/6 - 6/5)

6/7 * (85 - 36) / 30

7/7 * 49/30

1/1 * 7/5

= 7/5

2.)

5/8 × 1 întreg și 2/3 + 11/5

5/8 * (1 2/3 + 11/5)

5/8 * (5/3 + 11/5)

5/8 * (25 + 33) / 15

5/8 * 58/15

1/8 * 58/3

= 58/24

= 2 întreg 10/24

= 2 întreg 5/12

Answer:

1. 13x/760-13x

2. X = 29.23

3. X> 29.23

4. X<29.23

5. Max price = 29.23c

Step-by-step explanation:

1. D(x) = 760-13x

To get Elasticity, we differentiate the equation

D'x = -13

Elasticity is expressed as:

E(x) = -x*D'(x)/760-13x

= X(-13)/760-13x

[tex]\frac{-13x}{760-13x}[/tex]

B. Price elasticity with demand = 1

13x/760-13x = 1

We cross multiply

13x = 1(760-13x)

13x = 760-13x

Collect like terms

26x = 760

X = 29.23

C. When elasticity of demand is elastic

13x/760-13x > 1

We cross multiply

13x > 1(760-13x)

13x > 760-13x

Collect like terms

26x > 760

X > 29.23

C. Greater than 29.23

D. When inelastic

This follows same solution as 2 and 3 but the sign is different.

E(x) <1

13x/760-13x < 1

We cross multiply

13x < 1(760-13x)

13x < 760-13x

Collect like terms

26x < 760

X < 29.23

B. less than 29.23

E. We get total revenue

X(760-13X)

= 760x - 13x²

We differentiate this

760-26x = 0

760 = 26x

X = 29.23

revenue is a maximum at price is 29.23c

f. The last question is incomplete

Answer:

27 cm.

Step-by-step explanation:

Area = base * height

45 = 7.5 * h

h = 45/7.5

= 6 cm.

So the perimeter

= 2(base + h)

= 2(7.5 + 6)

= 27 cm.

Answer:

1- true

2- false

3- false

4- true

Answer:

91.631 is less than 91.681

Step-by-step explanation:

approximately:

91.631= 91.6

91.681= 91.7

Answer:

Step-by-step explanation:

[tex]s = slant[/tex]

[tex]h = \sqrt{s^{2} } - ( \frac{a}{2} ) ^{2}[/tex]

[tex]h = \sqrt{5^{2} } - ( \frac{6}{2} ) ^{2}[/tex]

[tex]h = \sqrt{5^{2} } - 3^{2}[/tex]

[tex]h=[/tex] 4

Answer:

18 ft

Step-by-step explanation:

6 ft + 3 ft + 6 ft + 3 ft = 18 ft

Answer:

18 ft

Step-by-step explanation:

if its 6 feet tall and 3 feet wide you add 6+6+3+3

Answer:

21 is the correct answer

it's just a logical question

just do multiply with 2 and add 1

answer will come

as above:4 is given

4×2+1

8+1

9

second:12

12×2+1

24+1

25

Answer:

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

Step-by-step explanation:

Conditional Probability

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

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

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

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Tested negative

Event B: Does not carry an abdornal CF gene.

Probability of a negative test:

10% of 1/25 = 0.04 = 4%

100% of 100 - 4 = 96%. So

[tex]P(A) = 0.1*0.04 + 1*0.96 = 0.964[/tex]

Negative test and not carrying an abdornal gene:

100% of 96%. So

[tex]P(A \cap B) = 1*0.96 = 0.96[/tex]

Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.96}{0.964} = 0.9959[/tex]

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

Answer:C

Step-by-step explanation:because I did it before

Answer:

84cm^2

Step-by-step explanation:

P=2l+2w

We are given,

P=40cm

l=2w+2

Plug these into the first formula and solve for the dimensions,

length and width, of the rectangle:

40=2(2w+2)+2w              Simplify

40=4w+4+2w

40=6w+4

36=6w

6=w OR the width is 6cm, therefore,

the length is

l=2(6)+2

l=14cm

To calculate the area of a rectangle, A=lw,

plug the length,14cm, and the width, 6cm, into this formula

A=(14)(6)

A=84cm2 OR the area of the rectangle is 84cm^2

Answer:

If Joseph was going to buy a large number of phones, and he bought the warranty on each phone,  he should expect to lose value from the warranties.

Step-by-step explanation:

Given - Joseph just bought a brand new cell phone and a warranty for the cell phone. The warranty cost 300 euros and  is worth 800 euros if his phone breaks. Joseph estimates that there is a 20% chance of his phone breaking.

Joseph calculates the expected value of buying the warranty to be -140.

To find - Which of the following statements are true?

Joseph will certainly lose value from the warranty.

Joseph will certainly gain value from the warranty.

If Joseph was going to buy a large number of phones, and he bought the warranty on each phone,  he should expect to lose value from the warranties.

Proof -

Given that , expected value = -140

⇒It means Joseph lose 140

(negative represents loss )

Now,

Given the expected values, it means we have given the probability so we can not be sure about loosing money

So,

The 1st and 2nd option is wrong because certain means sure because in the question we are not sure that Joseph phone will break or not.

Now,

The 3rd option says that if Joseph buy large amount of phone then he expect to lose value from from warranties .

This is the correct option because if we buy phones and warranty on phone then the expected value will divide on each phone.

So, the chance of impact on loss will decrease.

The correct option is - If Joseph was going to buy a large number of phones, and he bought the warranty on each phone,  he should expect to lose value from the warranties.

Answer: I think it is 67

Step-by-step explanation: