I need help on 5-7. Its a little confusing for me

Answer:

B, 7/20

Step-by-step explanation:

If two events are mutually exclusive that means that there is no intersection

so in the union formula: AUB=A+B-A∩B

A∩B=0

we can write P(a)=x

7/10=7/20+x+0

7/10-7/20=x

x=7/20

Answer:

1320m

hope this helps

have a good day :)

have a good day :)

Step-by-step explanation:

Answer:

[tex](a)\ Sum = x^3+8x^2-4x+9[/tex]

[tex](b)\ Sum =3x^3-7x^2+6x +16[/tex]

[tex](c)\ Sum = x^3-x^2+10x+6[/tex]

[tex](d)\ Sum = 3x^4 -3x^3+ 6x^2-x+2[/tex]

Step-by-step explanation:

Required

Sum of the polynomials

[tex](a)\ x^3+5x^2+2, 3x^2-4x+7[/tex]

[tex]Sum = x^3+5x^2+2+3x^2-4x+7[/tex]

Collect like terms

[tex]Sum = x^3+5x^2+3x^2-4x+2+7[/tex]

[tex]Sum = x^3+8x^2-4x+9[/tex]

[tex](b)\ 2x + 5x^3-2x^2+7, 9+4x-5x^2-2x^3[/tex]

[tex]Sum =2x + 5x^3-2x^2+7+ 9+4x-5x^2-2x^3[/tex]

Collect like terms

[tex]Sum =5x^3-2x^3-2x^2-5x^2+4x+2x +7+ 9[/tex]

[tex]Sum =3x^3-7x^2+6x +16[/tex]

[tex](c)\ 5x^3+2x^2+4, 2x^2+7x-5, 7-5x^2 +3x-4x^3[/tex]

[tex]Sum = 5x^3+2x^2+4+ 2x^2+7x-5+ 7-5x^2 +3x-4x^3[/tex]

Collect like terms

[tex]Sum = 5x^3-4x^3+2x^2+ 2x^2-5x^2+7x+3x-5+ 7 +4[/tex]

[tex]Sum = x^3-x^2+10x+6[/tex]

[tex](d)\ 2x^4-3x^2+4x^3-5, 9x^2-7x^3-2x^4, 7-x+3x^4[/tex]

[tex]Sum = 2x^4-3x^2+4x^3-5+ 9x^2-7x^3-2x^4+ 7-x+3x^4[/tex]

Collect like terms

[tex]Sum = 2x^4-2x^4+3x^4 +4x^3 -7x^3-3x^2+ 9x^2-x-5+ 7[/tex]

[tex]Sum = 3x^4 -3x^3+ 6x^2-x+2[/tex]

Answer:

Jack=9, John= 19

Step-by-step explanation:

28/3=9 1/3, counting as nine, as thats what got the right answer in my homework.

9 *2) +1= 19, no idea why the plus one, thats just what showed up

J1=19

J2=9

Answer: ℎ  +  4

Step-by-step explanation:

h − 1 (−4)

ℎ + 4

Answer:

The answer is  h^-1(-4)= -2

Step-by-step explanation:

This answer was pulled from Khan Academy.

Answer:

the Answer is 2^5

Step-by-step explanation:

Answer:

2^5

Step-by-step explanation:

5^2 = 25

2^5 = 32

3^3 = 27

1^10 = 1

Hope that this helps!

Menjawab:

1.1 cm

Penjelasan langkah demi langkah:

Volume kubus, V = a³

Dimana a = panjang sisi kubus

Untuk V = 1.331 cm³

Panjang sisi 'a' adalah:

V = a³

1,331 = a³

Ambil akar pangkat tiga dari kedua sisi

(1,331) ⅓ = a

a = 1,1 cm

Answer:

x = -2 ± 452i

Step-by-step explanation:

x² + 4x = 117

x² + 4x - 117 = 0

if you solve this quadratic by using the quadratic formula you get:

x = -2 ± 452i

452i is an imaginary number that equals [tex]\sqrt{-452}[/tex]

Answer:

27/8

Step-by-step explanation:

1.) 4-5/8

Convert element to fraction

2.) 4 x 8/8-5/8

3.) 4 x 8-5/8

4.) 27/8

Answer:

true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

6 is the diameter, so the radius would be 3.

3 x 3 = 9

Answer: 7.5 gallons

Step-by-step explanation:

1. You divide 15 by two

9514 1404 393

Answer:

  (x, y) = (4, 5)

Step-by-step explanation:

We notice that the coefficients of y are opposites, so we can eliminate y by adding the two equations together.

  (4x -3y) +(x +3y) = (1) +(19)

  5x = 20 . . . . . . simplify

  x = 4 . . . . . . . . .divide by 5

Substituting into the second equation gives ...

  4 +3y = 19

  3y = 15 . . . . . . . subtract 4

  y = 5 . . . . . . . . . divide by 3

The solution is (x, y) = (4, 5).

Answer:

Part a:

"The unit has 7 or more rooms" in terms of X is given by the unit which has 7, 8, 9 or 10 rooms.

P{ X≥7}= 0.424

Part b:

The event {X > 7} in words is that the unit has more  than 7 rooms. .

Part C:

A continuous random variable  is given by intervals of numbers

A discrete random variable is the variable that is obtained by counting.

Step-by-step explanation:

Part a:

"The unit has 7 or more rooms" in terms of X is given by

{ X≥7} = {x=7} + {x=8} + {x=9} + {x=10}

the unit which has 7, 8, 9 or 10 rooms.

The probability of this event is given by

P{ X≥7} =P {x=7} + P {x=8} + P {x=9} + P {x=10}

P{ X≥7} = 0.198 + 0.149+ 0.053 + 0.024

P{ X≥7}= 0.424

Part b:

The event {X > 7} in words is that the unit has more  than 7 rooms. This does not include the unit having 7 rooms.

Part C:

A continuous random variable takes all the values in the given interval as in part a.The random variable X takes the values between 7 and 10 inclusive of 7.

A discrete random variable is the variable that is obtained by counting as in part b. The variable X takes the values of the units with 8 , 9 or 10 rooms.

Answer: x > 20

Step-by-step explanation:

9 - x < - 11

In this scenario, we've to collect like terms in order to.wolve for x. This will be:

9 - x < - 11

- x < - 11 - 9

- x < - 20

Divide both side by -1

-x/-1 < -20/-1

When we divide by a coefficient with minus sign, the sign changes too from less than to greater than

-x/-1 < -20/-1

x > 20

Answer:

10,369.04

Step-by-step explanation:

Sorry if i'm wrong i got a little confused with this

Answer:

[tex] = (3209) - (1893) \\ = 1.32 \times {10}^{3} \\ = 1320[/tex]

[tex] \small{ \star{ \underline{ \blue{becker}}}}[/tex]

Answer:

1320

Step-by-step explanation:

round off

3209 ≈ 3210

1893 ≈ 1890

estimated difference = 3210 - 1890 = 1320

Answer:

m - mn

Step-by-step explanation:

The two numbers are denoted by m and n respectively.

From the question, we can deduce the following points;

- the difference between m and another variable (mn).

- product or multiplication of m and n.

Translating the word problem into an algebraic expression, we have;

m - (m*n)

m - mn

Answer:

In mathematics, a linear equation is an equation that may be put in the form are the coefficients, which are often real numbers.

Step-by-step explanation:

Hope this helped Mark BRAINLIEST!!!!

Answer:

[tex]x(3x - 1) \\ = {3x}^{2} - x[/tex]

Answer:

[tex]x(3x-1) = {3x}^{2} - x[/tex]

Answer:

x = 12

Step-by-step explanation:

4x - 5 = 2x + 19

First subtract the 2x from 4x.

2x - 5 = + 19

Then add the 5 to the 19.

2x = 24

Divide 24 by 2 in order to get x by itself.

x = 12

Answer: circle

Step-by-step explanation:

The shape of the cross-section is formed when a cylinder intersects the plane is a circle option (A) is correct.

In geometry, it is defined as the three-dimensional shape having two circular shapes at a distance called the height of the cylinder.

We know the volume of the cylinder is given by:

[tex]\rm V = \pi r^2 h[/tex]

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

As we know, the circle is a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

As we can see in the picture the cylinder is cut by a plane that is parallel to the base of the cylinder.

The base of the cylinder is a circle.

the shape of the cross-section is formed when a cylinder intersects a

the plane is a circle.

Thus, the shape of the cross-section is formed when a cylinder intersects the plane is a circle option (A) is correct.

Learn more about the cylinder here:

brainly.com/question/3216899

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Answer:

Volume = surface area

[tex]\frac{4}{3}\pi r^3 = 4\pi r^2\\\\\frac{r}{3} = 1\\r = 3[/tex]

option B

Answer:

135.48

Step-by-step explanation:

g00gl3

Answer:

135.5

Step-by-step explanation:

0.62 = 62% and 135.5 times 0.62 is 84.01

Answer:

f(X)=2x is the correct answer

Ans - A, C, E

Hope it helps You

Please mark as the brainliest

Thank You

The correct points to the equation. are (0,6)  , C. (2,3) , E. (4,0) a

An equation, statement of equality between two expressions consisting of variables and/or numbers.

3x + 2y = 12

To determine the points that are solutions to this equation

we have to apply substitution method

1. 3 * (0) + 2*6 = 12  Correct

2. 3 + 12 = 12  Incorrect

3. 6 + 6 = 12 Correct

4. 9+4 = 12 Incorrect

5. 12 + 0 = 12 Correct

6. 12 + 2 = 12 Incorrect

7. 12 + 12 = 12 Incorrect

Therefore A. (0,6)  , C. (2,3) , E. (4,0) are the correct points to the equation.

To know more about equation

https://brainly.com/question/10413253

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Answer:

y +x and the answer will be xy

Answer: t>3

Step-by-step explanation:

PLATO

Answer:

t > 5

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

I had brainliest but some kid reported me soooooo

Answer:

[tex]Area = 13[/tex]

Step-by-step explanation:

Given

[tex]A = (4,0)[/tex] -- [tex]x1,y1[/tex]

[tex]B =(5,5)[/tex] -- [tex]x2,y2[/tex]

[tex]C =(0,6)[/tex] -- [tex]x3,y3[/tex]

Required

Area of ABC

This is calculated as:

[tex]Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|[/tex]

This gives:

[tex]Area = \frac{1}{2}|4 * 5 - 5 *0 +5*6 - 0*5 + 0*0 - 4*6|[/tex]

Using a calculator, we have:

[tex]Area = \frac{1}{2}|26|[/tex]

Remove absolute bracket

[tex]Area = \frac{1}{2}*26[/tex]

[tex]Area = 13[/tex]