PLEASE HELP!!!!!!!
will mark brainliest!!!!

Answer:

f×g=

[tex] = 2x \times (5x + 2) \\ = 10 {x}^{2} + 4x \\ = 10 \times {3}^{2} + 4 \times 3 \\ = 90 + 12 \\ = 102[/tex]

Answer:

25.69

Step-by-step explanation:

I think

Answer:

$4.31

Step-by-step explanation:

$30 - $25.69 = $4.31

Answer:

Step-by-step explanation:

circumference=75 ft.

2πr=75

r=75/2π=75/(2×3.14)≈11.937

radius=11.94 ft

Diameter=2r=2×11≈23.87 ft

Answer:

the answer is A

Step-by-step explanation:

I took the test

The probability that the technician arrives exactly at 4:00 pm is 1/5.

Probability is the chance of occurring a certain event out of the total no. of events that can occur in a given context. The probability of an event is always greater than equal to zero and less than equal to one.

If we distribute arrival time uniformly in terms of hours the no. of sample space N(s) = 5.     (3:00pm, 4:00pm, 5:00pm, 6:00pm, 7:00pm).

∴ The probability that he arrives exactly at 4:00 pm is,

= 1/5.

The probability of arriving at 4:00 pm is 1/5.

learn more about probability here :

https://brainly.com/question/11234923

#SPJ2

Step-by-step explanation:

the equation is

y = ax + b

a is the slope of the line. this is the ratio y/x indicating how many units y changes, when x changes a certain number of units.

so, when we go from A to B, x changes 2 units (from 3 to 5), and y changes -4 units (from 5 to 1).

so the slope is -4/2 = -2

now or equation looks like

y = -2x + b

to get b we use one of the points in the equation. e.g. B

1 = -2×5 + b = -10 + b

b = 11

so, our full equation is

y = -2x + 11

Answer:

1) true

2)true

3)false

4)true

5)true

6) false

7))true

8)true

9)false

10)false.

11)false

12)true

Answer:

1-True

2-True

3-False

4-True

5-True

6-False

7-True

8-True

9-False

10-False

11-False

12-True

Answer:

660.4 mm

Step-by-step explanation:

Since 1 inch is equal to 25.4 millimeters, we can multiply 25.4 by 26 to see how many millimeters 26 inches is. You can also think of this as a proportion:

26:x = 1:25.4

26.4 times 26 is equivalent to 660.4, so we can conclude that 26 inches are equivalent to 660.4 millimeters.

If you have any further questions or need clarification on anything, let me know!

Answer:

all but 0.5

Step-by-step explanation:

thus answer should be right

20 Quarters

If each dollar has 4 quarters and your finding the amount for 5 dollars then multiply 4 by 5 to get 20 quarters total

Answer:

as line L is parallel to m

angle pqt = 89° ( vertically opposite angle)

angle tpq = 3x° ( vertically opposite angles).

in triangle pqt

angle p + angle q + angle t = 180° (angle sum proper of a triangle)

Let the unknown angle ptq be X

3x + 89 + X = 180°

3x + x + 89 = 180

4x + 89 = 180

4x = 180 - 89

4x = 91

x = 27°

angle u = 89° ( corresponding angles)

angle ptu = 89 + 27

= 116°

Answer:

5/x3

Step-by-step explanation:

just calculated it

Answer:

1)3.87

2)6.63

3)9

Step-by-step explanation:

0 hours

1/2 hours

1/2 hours

Answer:

Step-by-step explanation:

Yes it’s balance

Answer:

[tex]5 \sqrt{2} [/tex]

Answer:

Step-by-step explanation:

2(-3/5) = -6/5. (2)*(-3) = - 6/5

- 6/5 - 1/3 = 23/15. (Common denominator = 15)

6/15 - 5/15 = - 23/15

(- 23/15) / ( -6.75 / 15) = 92/27 = 3 11/27

Answer:

x = 2

y = 1

Step-by-step explanation:

1) Re-arrange

(Solving for y)

-2x -3y = -7    -->  x3

6x - y = 11    -->  x1

-6x -9y = -21

6x -y = 11

-9y = -21

-y = 11

(-9y + -y) = (-21 + 11)

-10y = -10    

y = -10/-10

y = 1

2) Substitute

6x - 1 = 11

6x = 11 + 1

6x = 12

x = 12/6

x = 2

Answer: x = 2, y = 1

Step-by-step explanation:

Rearrange the second equation so it just works a little easier for you:

-2x - 3y = -7

rearranged to make y (with its constant) the subject:

3y = 7 - 2x

So we know what y equals. The question tells us y = 6x - 11. So substitute those values into the rearranged equation.

3y = 7 - 2x   becomes:

3(6x - 11) = 7 - 2x

because as stated in the question, y = 3x - 11.

Expand the brackets on the left-hand side:

18x - 33 = 7 - 2x

Rearrange to collect like terms:

18x = 7 + 33 - 2x

18x = 40 - 2x

18x + 2x = 40

20x = 40

x = 40/20

x = 2.

So now we know the value of x.

Let's input our new found value of x into one of the given equations, such as y = 6x - 11.

y = (6 * 2) - 11

y = 12 - 11

y = 1.

So y = 1.

You can test this by inputting these values into the other equation, for assurance.

-2x - 3y = -7 becomes:

(-2 * 2) - (3 * 1) = -7

(-4) - 3 = -7

-7 = -7

9514 1404 393

Answer:

  12 11/24 radians (combined angular motion)

Step-by-step explanation:

In one hour, the combined angular motion is ...

  (2π)(1 +1/12) = 13π/6 radians

Then in the 5 3/4 hours between 1 pm and 6:45 pm, the angular motion of the two hands will total ...

  (23/4)(13π/6) radians = 299π/24 radians = 12 11/24 radians

_____

Additional comment

Maybe you're asking for the separate motions.

  minute hand: 2π×5.75 = 11.5π radians

  hour hand: (π/6)×5.75 = 23π/24 radians

Answer:

x = 16

Step-by-step explanation:

7x + 9 = 9x - 23

9 + 23 = 9x - 7x

32 = 7x

32 / 7 = x

16 = x

Step-by-step explanation:

[tex] \frac{a}{4} - 1 \times \frac{5}{6} = \frac{ - 1}{2} \\ \\ \frac{a}{4} - \frac{5}{6} = \frac{ - 1}{2} \\ \\ \frac{a}{4} + \frac{4( \frac{ - 5}{6}) }{4} = \frac{ - 1}{2} \\ \\ \frac{a + 4( - \frac{5}{6}) }{4} = \frac{ - 1}{2} [/tex]

α = 4/3

i hope this help ^^

Answer:

The decimal form of this fraction is 3.7 repeating.

Answer:

3.777...

Step-by-step explanation: