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disa [49]
3 years ago
11

Which of the following equations cannot be solved using real numbers?

Mathematics
1 answer:
dsp733 years ago
4 0

Answer:

x²+4=0

Step-by-step explanation:

x²=-4

√x² = √-4

x = 2i

x is an imaginary number

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For what values of x is rational expression below undefined x-7/x^2-7x-8
Novay_Z [31]
The values are x = 8 and x = -1.

To find the undefined values, we need to know when the denominator is zero.
To do this, we need to factor it and find the value that would make either factor equal to zero.

If factors to: (x - 8)(x + 1)

Therefore, the undefined values would be at 8 and -1.
8 0
3 years ago
Sixteen students in a drama club want to attend a play. the tick price is $35 for each student, and the transportation and meals
otez555 [7]
<span>I rounded up the whole number as if each student sells only 3 sweatshirts, it is too little to pay for the whole trip, therefore the number must be 4. Hope that helps!</span>
4 0
3 years ago
Add 113+(−56) using the number line.
Nataliya [291]

Answer:

Step-by-step explanation:

Start at 1 1/3

Add the negative number.

1 1/3 + (-5/6)

Adding a negative number means to go left on a number line.

-5/6 is equal to -2/3 plus -1/6.

Move 2/3 to the left.

1 1/3 (Start)

1      (1/3)

2/3   (2/3)

Now, move 1/6th to the left.

2/3 is equal to 4/6

4/6 - 1/6 = 3/6

So, put the point at 3/6 or 1/2.

3 0
3 years ago
Read 2 more answers
Can someone please help me with this thanks
Nitella [24]
They are both correct! Michael's equation is just a distributed version of Laurie's equation. Laurie's equation is solved like this: First distribute to get
2x + 1.2 + 0.8 + 0.7, then add the numbers together to get 2x + 2.7. 
Michael's equation also starts with distributing to get 2x + 1.2 + 0.8 + 0.7 and adding the numbers together to get the same answer: 2x + 2.7. Hope this helps!
4 0
3 years ago
A bag contains 2 yellow balls, 3 green balls, 5 red balls and 6 black balls.
natali 33 [55]

The probability of either a yellow or a red ball being drawn if only one is drawn is 7/16.

<h3>What is probability?</h3>

The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event. The formula for probability is given by; P(E) = Number of Favourable Outcomes/Number of total outcomes.

According to the given question.

Numnber of yellow balls = 2

Number of green balls = 3

Number of red balls = 5

Number of black balls = 6

So,

The total number of balls in a bag = 2+ 3+ 5 + 6 = 16

And,

The sum of yellow and red ball = 2 + 5 = 7

Therefore,

The probability of either a yellow or a red ball being drawn if only one ball is drawn

= \frac{total\ number\ of \ red \ and \ yellow\ balls }{Total\ number\ of \ balls}

= \frac{7}{16}

Hence, the probability of either a yellow or a red ball being drawn if only one is drawn is 7/16.

Find out more inforation about probability here:

brainly.com/question/11234923

#SPJ2

3 0
2 years ago
Read 2 more answers
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