rulfus has a box that contains cards of the same shape and size.there are 5 yellow cards, 4red cards, and 1 purple card.he draws a card at random replaced it, and draws a second card .what is the probability that both cards will be red?

Answer:

You got it wrong because you didn't distribute the 7 to the 3j.

Step-by-step explanation:

The answer should be 21j +70.

Answer:

In your original answer, you did not distribute the 7 to the 3j

Step-by-step explanation:

The distributive property basically states that the sum of any variables multiplied by a factor is equal to the sum of each product of every individual variable and the factor.

In short,

a(b+c) = ab + ac

or

x(y + w + z) = xy + xw + xz

or

9m + 9n = 9 (m+n)

Therefore, in order to solve 7(3j + 10)

you must multiply 7 by 3j and 7 by 10

(7 * 3j) + (7 * 10) = 21j + 70

Since 70 does not have the same terms as 21j (70 does not have j),

21j + 70 is in its most simplified form.

In your original answer, you didn't multiply the 3j by 7.

Answer:

Divide the number of miles traveled by the travel time in hours.  That will give you the average speed in miles per hour.

the first will equal 25 miles/hour

when dividing 125m/5h

when downhill it traveled faster at a rate of 35MPH

okay we'll need to sampi the answer

B for boat

C for current

B-c = d/time Uphill will equal = 125/5

so 25

B= 25 - c

d/time downhill = 175/5H = 35mph

25 -c -c =35

this brings it down to 10mph

-5c = 10mphs

which will equal

c= -5 = 5mphs

boat - 5mphs = 25mphs upstream

equals

Answer:

[tex]1.\ y = 2x - 1[/tex]

[tex]2.\ y = -4x + 5[/tex]

Step-by-step explanation:

Solving (1): The line equation in y intercept form;

Given

[tex]m = 2[/tex]

[tex](x_1,y_1) = (4,7)[/tex]

This is calculated using the following formula

[tex]y - y_1 = m(x - x_1)[/tex]

Substitute values for m, x1 and y1

[tex]y - 7 = 2(x - 4)[/tex]

Open Bracket

[tex]y - 7 = 2x - 8[/tex]

Make y the subject

[tex]y = 2x - 8 + 7[/tex]

[tex]y = 2x - 1[/tex]

Solving (2): The line equation in y intercept form;

Given

[tex]m = -4[/tex]

[tex](x_1,y_1) = (-1,9)[/tex]

This is calculated using the following formula

[tex]y - y_1 = m(x - x_1)[/tex]

Substitute values for m, x1 and y1

[tex]y - 9 = -4(x - (-1))[/tex]

[tex]y - 9 = -4(x + 1)[/tex]

Open Bracket

[tex]y - 9 = -4x - 4[/tex]

Make y the subject

[tex]y = -4x - 4 + 9[/tex]

[tex]y = -4x + 5[/tex]

Answer:

147.75 milliliters

Step-by-step explanation:

Find 5/8 of 236.4

So 147.75

So Harold’s kitten drinks 147.75 milliliters Of water everyday.

The measurement is closest to the number of milliliters of water Harold's kitten drinks every day is 147.75 milliliters.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Harold's kitten drinks 5/8 cup of water every day.

One cup is approximately equal to 236.4 milliliters.

Now, 5/8 ×236.4

= 5×29.55

= 147.75 milliliters

Therefore, the measurement is closest to the number of milliliters of water Harold's kitten drinks every day is 147.75 milliliters.

To learn more about the unitary method visit:

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Answer:

D

Step-by-step explanation:

The y-intercept is -1 in the equation, it is not shown in the graph. The graph shows it as 1. The slope is incorrect as well in the graph, for every x, y increases by 3, but in the equation for every x, y should increase by 1/3. Both are wrong.

Hope this helps!

Answer:

a. 2x+3z

b. 7xy

c.   [tex]\frac{3ab}{2c}[/tex]

d. 10z-6q

e. Subtract xy from the sum of p and q.

f.  Divide the sum of 3 and y by 5.

g. Subtract 2c from the square root of b.

h. 3x ... 4x ...

i. 3y ... y+5 ... 5y+5

j. length ... 3 ... breadth ... 8b ... 3b²

Step-by-step explanation:

Sum means addition. 2x + 3z

Product means multiplication. 7y × x = 7xy

Divide 3ab by 2c. 3ab ÷ 2c = [tex]\frac{3ab}{2c}[/tex]

Subtract 6q from 10z.  10z-6q

(p+q)-xy : Subtract xy from the sum of p and q.

(3+y)/5: Divide the sum of 3 and y by 5.

[tex]\sqrt{b}[/tex]- 2c: Subtract 2c from the square root of b.

Let the number of boys be x. Girls are three times more so 3 × x = 3x. The total would be 3x + x = 4x.

Let Nora's age be y. Father is three times more so 3 × y = 3y. Brother is 5 more so would be y+5. The total would be y + 3y + y + 5 = 5y+5

3b is three times more than b, the breadth. Thus, the length is three times more than the breadth since it is 3b. The perimeter would be 3b + b + 3b + b = 8b. The area would be 3b × b = 3b²

Answer:

-21

Step-by-step explanation:

18-3z = 2z - 6z -3

18-3z = -4z -3

-3z+4z= -3-18

z=-21

Answer:

If you mean "z" instead of "x", the answer should be -21.

Step-by-step explanation:

18 - 3z = 2z - 6z - 3

-3z - 2z + 6z = -18 - 3

z = -21

Answer:

its most likely 40

Step-by-step explanation:

Answer:

x=4 or x=−8

Step-by-step explanation:

Let's solve your equation step-by-step.

(x+2)2=36

Step 1: Simplify both sides of the equation.

x2+4x+4=36

Step 2: Subtract 36 from both sides.

x2+4x+4−36=36−36

x2+4x−32=0

Step 3: Factor left side of equation.

(x−4)(x+8)=0

Step 4: Set factors equal to 0.

x−4=0 or x+8=0

x=4 or x=−8

Step-by-step explanation:

By using the Divergence Theorem, the flux equals

∫∫∫ div F dV

= ∫∫∫ ((-2x - 4y) + (-6z) + 12) dV

= ∫(z = 0 to c) ∫(y = 0 to b) ∫(x = 0 to a) (12 - 2x - 4y - 6z) dz dy dx

= ∫(z = 0 to c) ∫(y = 0 to b) (12a - a^2 - 4ay - 6az) dy dx

= ∫(z = 0 to c) (12ab - a^2 b - 2ab^2 - 6abz) dx

= 12abc - a^2 bc - 2ab^2 c - 3abc^2.

So, we need to find the maximum value of

f(a,b,c) = 12abc - a^2 bc - 2ab^2 c - 3abc^2, with a,b,c > 0.

First, we find the critical points of f.

f_a = 12bc - 2abc - 2b^2 c - 3bc^2 = bc(12 - 2a - 2b - 3c)

f_b = 12ac - a^2 c - 4abc - 3ac^2 = ac(12 - a - 4b - 3c)

f_c = 12ab - a^2 b - 2ab^2 - 6abc = ab (12 - a - 2b - 6c).

Setting these equal to 0 (and remembering that a, b, c > 0):

12 - 2a - 2b - 3c = 0

12 - a - 4b - 3c = 0

12 - a - 2b - 6c = 0

Solving this system yields a = 3, b = 3/2, c = 1.

By the Second Derivative Test or otherwise, this can easily be checked to yield the maximum flux.

This maximal flux equals f(3, 3/2, 1) = 27/2

In this exercise we have to use the knowledge of the divergence theorem, so we can say that the integral will be given by:

[tex]f(3, 3/2, 1) = 27/2[/tex]

By using the Divergence Theorem, the flux equals:

[tex]= \int\limits \int\limits \int\limits{ ((-2x - 4y) + (-6z) + 12) dV}\\= 12abc - a^2 bc - 2ab^2 c - 3abc^2[/tex]

So, we need to find the maximum value of:

[tex]f(a,b,c) = 12abc - a^2 bc - 2ab^2 c - 3abc^2[/tex]

First, we find the critical points:

[tex]f_a = 12bc - 2abc - 2b^2 c - 3bc^2 = bc(12 - 2a - 2b - 3c)f_b = 12ac - a^2 c - 4abc - 3ac^2 = ac(12 - a - 4b - 3c)f_c = 12ab - a^2 b - 2ab^2 - 6abc = ab (12 - a - 2b - 6c).[/tex]

Setting these equal to:

[tex]12 - 2a - 2b - 3c = 012 - a - 4b - 3c = 012 - a - 2b - 6c = 0[/tex]

See more about divergence theorem at  brainly.com/question/6960786

Answer:

$6.96

Step-by-step explanation:

0.25 pound = $1.74

for 1 pound multiply by 4, since there are four 0.25 (quarters) to 1 pound.

1.74*4 = 6.96

Answer:

I think it is 6.94

Step-by-step explanation:

0.25 is 1/4 of a dollar so we should multiply 1.74 by 4 and we get 6.94 dollars for  1 pound of tuna salad

Answer:

4 times 8 times 4 equals 128

Step-by-step explanation:

mental math

Answer:

9

Step-by-step explanation:

This means that the average of all the slopes of lines tangent to the graph of g(x) between (4 ,15) and (6 ,33) is 9.

Answer:

It is irrational because it can not be represented as a fraction of two integers

Step-by-step explanation:

Given

[tex]B_1 = 3.6[/tex]

[tex]B_2 = 12\frac{1}{3}[/tex]

[tex]H = \sqrt[3]5[/tex]

Required

Why is the area irrational?

First, we need to calculate the area

[tex]Area = \frac{1}{2}(B_1 + B_2) * H[/tex]

[tex]Area = \frac{1}{2}(3.6 + 12\frac{1}{3}) * \sqrt[3]5[/tex]

[tex]Area = \frac{1}{2}(3.6 + \frac{37}{3}) * 17100[/tex]

[tex]Area = \frac{1}{2}(\frac{10.8+37}{3}) * 1.710[/tex]

[tex]Area = \frac{1}{2}(\frac{47.8}{3}) * 1.7100[/tex]

[tex]Area = \frac{47.8}{6} * 1.7100[/tex]

[tex]Area = \frac{47.8* 1.7100}{6}[/tex]

[tex]Area = \frac{81.738}{6}[/tex]

[tex]Area = 13.623[/tex]

It is irrational because it can not be represented as a fraction of two integers

Answer:

Get a good night's sleep!!!

It is SO important to sleep even if you have work. Sleep first, but make sure that you have a bit of time to work on whatever you need to do. But sleep first.

Answer:1

Step-by-step explanation:the gap is one

Answer:

1

Step-by-step explanation:

y is equal to x minus 1. for example, in number 1, 4x is equal to 3y, which is 1 less. Hope this helps! Have a good day! :)

Answer:

38

Step-by-step explanation:

PQ = 4x - 2

MN = 10

PQ = MN

4(10) - 2

40 - 2

38

Answer:

[tex]y= -\frac{2}{3}x + 12[/tex] --- (1)

[tex]y = -2x -6[/tex] --- (2)

Step-by-step explanation:

Solving (a): Line Equation

[tex](x_1,y_1) = (3,10)[/tex]

[tex](x_2,y_2) = (6,8)[/tex]

First, calculate the slope (m)

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

[tex]m = \frac{8 - 10}{6 -3}[/tex]

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

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

The line equation is then calculated using:

[tex]y - y_1 = m(x - x_1)[/tex] --- slope intercept formula

This gives:

[tex]y - 10 = -\frac{2}{3}(x - 3)[/tex]

[tex]y - 10 = -\frac{2}{3}x + 2[/tex]

Solve for y

[tex]y= -\frac{2}{3}x + 2+10[/tex]

[tex]y= -\frac{2}{3}x + 12[/tex]

Solving (b): Line Equation

[tex](x_1,y_1) = (2,-10)[/tex]

[tex](x_2,y_2) = (-4,2)[/tex]

Calculate the slope (m)

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

[tex]m = \frac{2 -(- 10)}{-4 -2}[/tex]

[tex]m = \frac{2 + 10}{-6}[/tex]

[tex]m = \frac{12}{-6}[/tex]

[tex]m=-2[/tex]

The line equation is then calculated using:

[tex]y - y_1 = m(x - x_1)[/tex]

This gives:

[tex]y - (-10) = -2(x - 2)[/tex]

[tex]y +10 = -2(x - 2)[/tex]

[tex]y +10 = -2x +4[/tex]

Solve for y

[tex]y = -2x +4-10[/tex]

[tex]y = -2x -6[/tex]

Answer:

Angle in radian = 0.75

Step-by-step explanation:

Given:

Height  = 11 ft

Hypotenuse = 15 ft

Find:

Angle in radian

Computation:

Cosθ = Height / Hypotenuse

Cosθ =  11/ 15

Angle in radian = 0.75

Answer:

i think

C.

(3, 2)

Answer:

8 1/8 or 8.125

Step-by-step explanation:

8 goes into 64 8 times. There is a remainder of 1 left over. When you divide 1 by 8, you get .125. That is added to 8.

The solution of expression after divide is,

⇒ 8.125

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that'

The expression is,

⇒ 65 divided by 8

Now, We can divide as;

⇒ 65 divided by 8

⇒ 65 ÷ 8

⇒ 8.125

Thus, The solution of expression after divide is,

⇒ 8.125

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Answer:

I'm bad at explaining this but after this, go to sleepppp

Step-by-step explanation:

Answer:

x > -2

Step-by-step explanation:

First, you simplify both sides of the inequality by combining like terms

[tex]-8x + 2x -16 < -5x + 7x[/tex]

[tex]-6x - 16 < 2x[/tex]

Then, you add 6x to both sides in order to isolate x (bring all the Xs to one side)

[tex]-6x - 16 + 6x < 2x + 6x[/tex]

[tex]-16 < 8x[/tex]

Lastly, you divide by 8 in order to cancel out 8x solve for x. Since 8 is not a negative number, you DO NOT flip the sign.

[tex]\frac{-16}{8} < \frac{8x}{8}[/tex]

[tex]-2 < x[/tex]

Answer:

[tex] BD = 56 [/tex]

Step-by-step explanation:

BD = ??

CB = 17

CD = 73

Thus:

[tex] CB + BD = CD [/tex] (segment addition postulate)

[tex] 17 + BD = 73 [/tex] (substitution)

[tex] BD = 73 - 17 [/tex] (subtraction property of equality)

[tex] BD = 56 [/tex]

Answer: 5

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

By angle bisector property:

[tex] \frac{x}{2} = \frac{6}{3} \\ \\ x = \frac{2 \times \cancel6}{ \cancel3} \\ \\ x = 2 \times 2 \\ \\ x = 4[/tex]

Answer:

2 bags = $3.00

5 bags = ?

5 × 3.00 /2

15.00/2

7.5

7.5 $

Answer:

70 percent

Step-by-step explanation:

Answer:

4+3=7 and 2+5=7 so when you multiply you get 49

Answer:

(4+3) ×(2+5)

7×7

= 49

Step-by-step explanation:

first add the no. then multiplied it with the sum