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olganol [36]
3 years ago
9

What is the solution set for the equation (x+3)(x-8)=0

Mathematics
1 answer:
STALIN [3.7K]3 years ago
3 0

Answer:

x = -3        x=8

Step-by-step explanation:

(x+3)(x-8)=0

Using the zero product property

x+3 =0   x -8 = 0

x = -3        x=8

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Simplify -15.4/-4…………………….<br> −3.9<br><br> 3.9<br><br> −4.9<br><br> 4.9
Dafna1 [17]
It is 3.9 I hope this will help you
8 0
3 years ago
|a − b + c| , if a=−8; b=−5; c=1<br> please help thx brosuf
Arisa [49]

Answer:

2

Step-by-step explanation:

|a - b + c|  =  | - 8 + 5 + 1|  =  | -  2|  = 2

8 0
3 years ago
Read 2 more answers
Write additive and multiplicative inverse of19/-6 and-2/3<br>​
Sedbober [7]
<h2>Answer:</h2>

Additive inverse of 19/-6 is 19/6

Additive inverse of -2/3 is 2/3

Multiplicative inverse of 19/-6 is -6/19

Multiplicative inverse of  -2/3 is  3/-2 (also written as -3/2)

<h2>Step-by-step explanation:</h2>

(a) The additive inverse of a number is that number that when added to it gives 0.

For example, the additive inverse of x is -x.

This is because adding -x to x gives 0. i.e

x + (-x) = 0

In other words, the additive inverse of a number is the negative of that number.

Given:

(i) 19/-6

The additive inverse of 19/-6 is the <em>negative</em> of 19/-6 which is -(19/-6).

-(19/-6) then gives 19/6

Therefore, the additive inverse of 19/-6 is 19/6

(ii) -2/3

The additive inverse of -2/3 is the <em><u>negative</u></em> of -2/3 which is -(-2/3).

-(-2/3) then gives 2/3

Therefore, the additive inverse of -2/3 is 2/3

(b) The multiplicative inverse of a number is that number that when multiplied by it gives 1.

For example, the multiplicative inverse of y is 1/y.

This is because multiplying y by 1/y gives 1. i.e

y x (1/y) = 1

In other words, the multiplicative inverse of a number is the reciprocal of that number.

Given:

(i) 19/-6

The multiplicative inverse of 19/-6 is the <em>reciprocal</em> of 19/-6 which is 1/(19/-6).

1 / (19/-6) then gives -6/19

This is found by just swapping the numerator(19) and the denominator(-6)

Therefore, the multiplicative inverse of 19/-6 is -6/19

(ii) -2/3

The multiplicative inverse of -2/3 is the <em>reciprocal</em> of -2/3 which is 1/(-2/3).

1 / ( -2/3) then gives  3/-2

This is found by just swapping the numerator(-2) and the denominator(3)

Therefore, the multiplicative inverse of  -2/3 is  3/-2 (also written as -3/2).

4 0
3 years ago
A right angle always has a measurement of less than 90 degrees. True or false?
Darya [45]
A right angle always has 90 degrees. So this is false.
4 0
2 years ago
Read 2 more answers
The diameter of a bacteria colony that doubles every hour is represented by the graph below. What is the diameter of the bacteri
vlada-n [284]

Option B: 256 is the diameter of the bacteria after 8 hours.

Explanation:

From the given, it is obvious that the graph is an exponential function.

The general formula is given by,

y=a(b)^x

Where a is the initial population,

b is the growth rate and

x is the number of hours.

It is given that the diameter of the bacteria doubles every hour.

Then, we have,

b=2

Let us substitute the coordinate (0,1) and b=2, we get,

1=a(2)^0

1=a

Thus, substituting a=1 and b=2 in the general formula y=a(b)^x, we have,

y=1(2)^x

We need to determine the diameter of the bacteria after 8 hours.

Let us substitute x = 8 in the equation y=1(2)^x, we get,

y=1(2)^8

y=1(256)

y=256

Thus, the diameter of the bacteria after 8 hours is 256

Hence, Option B is the correct answer.

7 0
3 years ago
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