Which of the following square roots would not be between 7 and 8

Mathematics

2 answers:

Veseljchak [2.6K]4 years ago

5 0

Answer:

Step-by-step explanation: When you square something you multiply it by itself, and 7*7 is 49. 45 is lower than 49, so it would be impossible.

bekas [8.4K]4 years ago

4 0

Answer:

C, √45

Step-by-step explanation:

First, we can use process of elimination to get rid of A and D, since we know we're looking for a range, and only the highest or the lowest number is going to be outside of that range.

Now we simply have to run the remaining answers through our calculators. √62 is 7.87 and √45 is 6.71. Since 7.87 is between 7 and 8 and 6.71 is not, C must be our answer.

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(10-P) Help please, thanks.

Anuta_ua [19.1K]

The formula of linear equation is:
$y1 - y2 = m(x1 - x2)$
Where
x1 and x2: x coordinates(-1 and 3)
y1 and y2: y coordinates(-2 and 10)
m is the slope

We can then choose a point from the line to find the eqaution.

We need to first find the slope:
$\frac{y1 - y2}{x1 - x2}$
In this case:
$\frac{ - 2 - 10}{ - 1 - 3} \\ = \frac{ - 12}{ - 4} \\ = 3$

In this case, as the y2 is given as 1,put (-1,-2) , and the slope(3 )into the eqaution :

y-(-2) = 3(x-(-1))
y+2 = 3(x+1)

Therefore
$y + 2 = 3x + 1$
is the answer.

Hope it helps!

7 0

3 years ago

50 students live in a dormitory. The parking lot has the capacity for 30 cars. Each student has a car with probability 12 , inde

Maurinko [17]

Answer:

P(X is greater than 30) = 0.06

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.5

Sample size = 30

The Binomial can be approximated to normal with:

$\mu = np = 50 \times 0.5 \\ \\ \mu= 25$