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MAVERICK [17]
3 years ago
14

Determine between which consecutive integers the real zeros of f(x)=2x^2-5x-1 are located A. between zero and one, one and two B

. between negative one and zero, two and three C. between 0 and one, two and three D. between one and two, two and three

Mathematics
1 answer:
STatiana [176]3 years ago
7 0

Answer:

so i guess the answer should be B

Step-by-step explanation:

-0.186 is located between -1 and 0

2.686 is located between 2 and 3

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1 3/4 + 1 3/4 hasilnya adalah
vekshin1
1 \frac{3}{4} + 1 \frac{3}{4} =  \frac{3}{4} + 1 * \frac{3}{4} =  \frac{3}{4} +  \frac{3}{4} =  \frac{3+3}{4}
=  \frac{6}{4} =  \frac{3}{2}

Decimal form: 1.5
8 0
3 years ago
Simplify: (x-3) (x-3)
Pachacha [2.7K]

Answer:

x^2 -6x +6

Step-by-step explanation:

<em>Square of a difference (can be found in IM2)</em>

Formula: a^2 -2ab +b^2

x= a; 3= b

(x -3)(x -3)

<em>Plug in to formula.</em>

x^2 -2(x)(3) +3^2

<em>Simplify.</em>

x^2 -6x +6

8 0
3 years ago
Read 2 more answers
Jason wants to know the percentage of M &amp; M's that are green. He chooses a sample of 30 M &amp; M's from a bag, and 3 of the
KATRIN_1 [288]

Answer:

The margin of error of his experiment is of 0.1074.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

30 M & M's from a bag, and 3 of them are green.

This means that n = 30, \pi = \frac{3}{30} = 0.1

Standard 95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Margin of error:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.96\sqrt{\frac{0.1*0.9}{30}}

M = 0.1074

The margin of error of his experiment is of 0.1074.

5 0
3 years ago
What is (3+21)-4 divides by 2
katen-ka-za [31]
1. -4 times 3 and 21
2.add -12 and -84
3.-96 dived by 2
4 equals -48
3 0
4 years ago
Read 2 more answers
I need HELP ASAP! It’s due today
Vikki [24]

Answer:

28 cubs

Step-by-step explanation:

Since one and a half bear produces one and a half cub, then 6 bears will produce 6 cubs in one and a half days.

We need to find 7 days, though but we have the rate for six bears for 1.5 days which 6 bears one a half day.

What is the rate for a day?

6/1.5 =

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Now just do 4 x 7

4 x 7 = 28

Therefore, 6 bears produce 28 cubs in 7 days.

8 0
3 years ago
Read 2 more answers
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