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wel
3 years ago
11

This is due in an hour so i’d appreciate any help. :))

Mathematics
2 answers:
Korolek [52]3 years ago
8 0

Answer: m < 1

x² - 2x + m = 0 (*)

a = 1   b = -2    c = m

Δ = b² - 4ac = 4 - 4m

(*) has 2 district real solutions => Δ > 0

⇔ 4 - 4m > 0

⇔ 4m < 4

⇔ m < 1

Step-by-step explanation:

Bingel [31]3 years ago
3 0
Positive one would be a solution, so when you factor it it would be (x-1)(x-1)
—> both solutions being 1, and this works because on a graph it can hit the same spot twice

Or negative three, and when you factor it would be (x-3)(x+1)
—> one solution being 3, and another being -1

So m could be -3 or 1

That’s all I can think of hope that helped!
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11. The formula for finding a number that's the square root of the sum of another number n and 6 is
Dafna1 [17]

Answer:

x = \sqrt{x+6}

Step-by-step explanation:

The question states that it is the square root of the sum of both n and 6. That means n and 6 are added first before square rooted. Between B and C, choose the answer that has the parenthesis around x and 6, like (x + 6).

6 0
3 years ago
Given the following two points find the slope. p1(-2,3)and p2(1,0)
Aloiza [94]

Answer

Slope(m) = -1


Step by step explanation

Slope (m) = (y2 - y1)/(x2 - x1)

Here p1 = (-2, 3) and p2 (1, 0)

x1 = -2, y1 = 3, x2 = 1, y2 = 0

Now plug in the values in the slope formula, we get

m = (0 - 3) / (1 - (-2))

m = -3/(1 + 2)

m = -3/3

m = -1

Therefore, slope = -1

Thank you.

8 0
4 years ago
Kate has two lengths of ribbon. the pink ribbon is 4 6/12 feet long, and the purple ribbon is 2 4/12 feet long. how much ribbon
Vlad1618 [11]
Data:
<span>Kate has two lengths of ribbon
pink ribbon = </span>4 \frac{6}{12} \;feet
purple ribbon = 2 \frac{4}{12} \;feet

<span>How much ribbon does kate have in all?
pink ribbon + purple ribbon

Solving:
</span>4\frac{6}{12} + 2\frac{4}{12} =  \frac{12*4+6}{12} + \frac{12*2+4}{12} =  \frac{48+6}{12} + \frac{24+4}{12} =  \frac{54}{12} + \frac{28}{12} =  \frac{82}{12} =
\frac{82}{12} \:simplify\: \frac{\div2}{\div2} =  \boxed{\boxed{\frac{41}{6} \:or\:6 \frac{5}{6} }}\end{array}}\qquad\quad\checkmark
<span>
Answer:
</span><span>Kate has it all </span>6 \frac{5}{6} of ribbons
4 0
4 years ago
A negative value of r means that:
tatuchka [14]

Answer:

(d.) Those who score high on one variable tend to score low on the other.

Step-by-step explanation:

A negative value of correlation coefficient (r) shows a relationship between two variables such that as one variable increases, the other decreases. It shows the inverse relationship between two variables with the dependence determined by the value of the correlation coefficient (r).

It can be observed that for graphs with negative slope, the correlation coefficient (r) is similarly negative. This speaks about its relationship too.

The correlation coefficient being negative doesn't mean the relationship between the two variables in question is bad, it just means that the correlation relationship is inverse (still dependent). A perfectly negative correlation is -1.  

6 0
3 years ago
A ferris wheel has 15 seat buckets . What is the angle measurement between each bucket?​
valkas [14]

Answer:

24 degrees

Step-by-step explanation:

A Ferris wheel is in the shape of a circle. Having 15 seat buckets means that the circle will be divided into 15 sections. Keep in mind that we are assuming that the seat buckets are equally spaced.

We know that:

Degrees in one circle: 360 degree

Dividing in 15 sections:

=\frac{360}{15}\\=24\ degrees

So the angle of measurement between the seat buckets is 24 degrees ..

4 0
4 years ago
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