Please help, will reward brainliest.

Answer:

280

Good luck on your exam tomorrow! :-)

Step-by-step explanation:

[tex]f(x) = \dfrac{1}{2x} \\~\\~\\f(-2) = \dfrac{1}{2\cdot(-2)} \\~\\~\\f(-2) = -\dfrac{1}{4} \\~\\~\\f(-2) = -0.25[/tex]

Answer:

[tex]\dfrac{4}{3}[/tex]

Step-by-step explanation:

Number of boxes of paper = 4

Number of printer = 3

We have to find the number of pages in each printer.

Let the number of pages in each box be 1.

Total number of pages in 4 boxes = 4

3 printer will have pages = 4

1 Printer will have pages = [tex]\dfrac{4}{3}[/tex]

Hence, pages each printer will have is equal to [tex]\dfrac{4}{3}[/tex].

Answer:

B

Step-by-step explanation:

quadratfunction because it comprises of both X and Y

Answer:

a

Step-by-step explanation:

Answer:

1.         x=2+3y/2

2.         x=−3/2+4y

hope this helps!!:)

Step-by-step explanation:

Answer:

ok umm the answer is 5x=92

Step-by-step explanation:

Have a great day! :)

Answer:

Hello there:] How are you! I think that both A and C are quadrilaterals.

Step-by-step explanation:

As you might know, quadrilaterals have 4 sides because of the name quad. B has 5 sides which would make it a pentagon. Im not really sure about d since there is not really any angles. I hope this helps! :]

Answer:  The probability that an event will occur is the fraction of times you expect to see that event in many trials. Probabilities always range between 0 and 1. The odds are defined as the probability that the event will occur divided by the probability that the event will not occur.

Answer:

Answer:ab23cb24ca21

Step-by-step explanation:

Answer:

4.5 miles per hour

Step-by-step explanation:

2 1/4 x 2 = 4.5 (As decimal)

30 mins + 30 mins = 1 hour

1 hour = 4.5 miles per hour

Answer:

-3v+11

Step-by-step explanation:

i think

Answer:

11 - 3 v

Step-by-step explanation:

second option

goodluck!!!!!!!!!

Answer:

306.94 cm

Step-by-step explanation:

The formula for volume of a cylinder is pi×r^2×h. Im assuming that you mean that the base is 6.5 cm in diameter so in this case you would plug in the values and do pi×3.25^2×9.25 and get 306.94 cm

Answer:

0.1d

Step-by-step explanation:

Answer:

.9b

Step-by-step explanation:

Answer:

$22.5 off

Step-by-step explanation:

Answer:

Step-by-step explanation:

V of a cone V=3.14* r^2*h/3

942=3.14*r^2*9/3

r^2=942/(3.14*3)=100

r=sqrt100=10

The radius of the cone when the volume of 942 cubic inches and a height of 9 inches should be 10.

Since there is  a volume of 942 cubic inches and a height of 9 inches

We know that

Volume of a cone V=[tex]3.14* r^2*h/3[/tex]

So,

[tex]942=3.14*r^2*9/3\\\\r^2=942/(3.14*3)=100[/tex]

r =[tex]\sqrt 100[/tex]

=10

hence, The radius of the cone when the volume of 942 cubic inches and a height of 9 inches should be 10.

Learn more about volume here: https://brainly.com/question/14010084

Answer:

vnfcjvfn dcjxfhhnvn vn

Step-by-step explanation:

Answer:

the value of 7x-y is -14.

Step-by-step explanation:

When x=2 and y=4,

To find the value of 7x - y when x =2, y = 4, this means when ever you see x, put 2 in replacement, y, put 4 respectively.

7x - y = 7(2 - 4)

14 - 28

= -14.​

Answer: 6in, 8in, 10in

6 squared + 8 squared equals to the radical of 100, which equals to 10 because 10 squared is.. 100

The measurements that can be used to build a right-angled triangle are

[tex]6 in, 8 in, 10 in[/tex]

The measurements that can be used to build a right-angled triangle must form a Pythagorean triple. A Pythagorean triple is a set of three numbers [tex]\{x,y,z\}[/tex] that satisfy the Pythagorean relationship

[tex]x^2+y^2=z^2[/tex]

The measurements [tex]\{5 in, 7 in, 12 in\}[/tex] do not form a triple since

[tex]5^2+7^2=74\ne12^2[/tex]

The measurements [tex]\{8 in, 12 in, 14 in\}[/tex] do not form a triple since

[tex]8^2+12^2=208\ne14^2[/tex]

The measurements [tex]\{5 in, 9 in, 11 in\}[/tex] do not form a triple since

[tex]5^2+9^2=106\ne11^2[/tex]

The measurements [tex]\{6 in, 8 in, 10 in\}[/tex] form a triple since

[tex]6^2+8^2=100=10^2[/tex]

So, the last set of measurements [tex]6 in, 8 in, 10 in[/tex] can be used to build a right-angled triangle

Learn more about Pythagorean triples here: https://brainly.com/question/16314667

Answer:

I think is 12x2 +48x-27 but I'm confused

Answer:

[tex]A=12x^2+48x-27[/tex]

Step-by-step explanation:

Area of a Rectangle

The image shows a rectangular vegetable garden with different crops.

The rectangle has a length of L=2x+9 yards and a width of W=6x-3 yards.

The area of a rectangle is:

A = WL

[tex]A=(2x+9)(6x-3)[/tex]

Operating:

[tex]A=2x(6x)-2x(3)+9(6x)-9(3)[/tex]

[tex]A=12x^2-6x+54x-27[/tex]

Simplifying:

[tex]\boxed{A=12x^2+48x-27}[/tex]

Answer:

18x + 12.

Distribute the properties, then calculate.

18x + 12 - 2 + 2

- 2 + 2 is contradictory and cancels each other out.

18x + 12.

Answer:

slope is 2/3

Step-by-step explanation:

y=mx + b where m is the slope

Answer:

6,9,15

It's a triple stack

Answer:

100

Step-by-step explanation:

X and 80 make a supplmentary angle which means when added, it will equal 180°. We can make an equation and solve.

180 - 80 = 100

Best of Luck!

Answer:

100 degrees

Step-by-step explanation:

a line adds up to 180

80+x=180

x=100

Correct me if I'm wrong but wouldn't even 15 be right could be a lot of things

Answer:

Any number above 14.3, example:15

Step-by-step explanation:

The question asks the sum of -14.3 and a number, (x-14.3) to be positive.

We can make it x-14.3>0

x>14.3

Answer:

This equation has one solution, if x = 0

Step-by-step explanation:

Because, you subtract 15 from both sides so: 9x + 15 - 15 = 3x + 15 - 15 which equals: 9x = 3x. if x = 0 this equation is true.

Answer:

X=0

Step-by-step explanation:

If we subtract 15 from both sides, then we can see 9x=3x. If x was 0, then the equation would be 9x0=3x0. Since 0 times anything equals 0, this equation would be true resulting in 0=0.

Answer:

[tex]\frac{5\sqrt{34}}{34}[/tex]

Step-by-step explanation:

The formula for cos θ is a/r. A is the first number (10) and b is the second number (6). R is the hypoteneuse which can be found through r = [tex]\sqrt{a^{2} + b^{2} }[/tex].

In the equation you'd write that as r = [tex]\sqrt{10^{2} + 6^{2}[/tex] which can be simplified to [tex]\sqrt{136[/tex].

You end up with [tex]\frac{10}{\sqrt{136} }[/tex] and you simplify this by doing [tex]\frac{10 }{\sqrt{136} } * \frac{\sqrt{136} }{\sqrt{136} }[/tex], ending with the result of [tex]\frac{5\sqrt{34}}{\sqrt{34} }[/tex].

(I also got this answer right on the test.)