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3 years ago

Answer as much as possible

Mathematics

1 answer:

VLD [36.1K]3 years ago

5 0

20. 3n + 2
21. 0.5n - 9
22. n - 9^2
23. |-16| + n
24. |-8 - 2n|
25. n(9 + 3)
26. n(22 - 5)
27. n(4 - 3)
28. 7(n + 3)
29. (-19 + n)/10
30. (2 + n)/4

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A new machine makes three times as many toys in one hour as the old machine did it both machines make a total of 248 toys in one

ioda

Answer:

I am assuming you meant that the old machine made 248 toys in one hour instead of both if that is the case then the answer would be 744.

Steph-by-step explanation:

The new machine makes three times as many as the old machine so 248 times 3 = 744 toys in one hour

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3 years ago

What is the excluded value of a/b-2

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The correct excluded value is 2.

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3 years ago

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Answer:

3.25

Step-by-step explanation:

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3 years ago

PLEASE HELP

Elodia [21]

Answer:

The area of the resulting cross section is $78.5\ m^{2}$

Step-by-step explanation:

we know that

The resulting cross section is a circle congruent with the circle of the base of cylinder

therefore

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$A=\pi r^{2}$

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3 years ago

Which of the following is a solution of x2 + 2x + 4?

RideAnS [48]

Answer:

option-D

Step-by-step explanation:

we are given

$x^2+2x+4$

Let's assume it is equal to 0

$x^2+2x+4=0$

We can use quadratic formula

Suppose, we are given quadratic equations as

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

we can compare and find a,b and c

a=1 , b=2 , c=4

now, we can plug values

and we get

$x=\frac{-2\pm \sqrt{2^2-4\cdot \:1\cdot \:4}}{2\cdot \:1}$

now, we can simplify it

and we get

$x=-1+\sqrt{3}i,\:x=-1-\sqrt{3}i$

6 0

3 years ago

Read 2 more answers