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3 years ago

10

2% of the students at Hamilton Middle School have red hair. There are 700 students at Hamilton Middle School.

1 answer:

frez [133]3 years ago

5 0

Exactly 14 students at Hamilton Middle have red hair

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The vertex of a parabola is (3,2). A second point on the parabola is (1,5).which of the following points is also on the graph?

vekshin1

+ <span>The vertex of a parabola is (3,2),
that means the parabola's equation is y=a(x-3)</span>²+2
+ <span>A second point on the parabola is (1,5) and we replace x=1 and y=5. We have:
5</span>=a(1-3)<span>²+2 , so we have 4a=5-2 or a=3/4
So the equation is y=3/4 (x-3)</span>²+2

And by checking we have the point (5;5) is on the parabola
Have fun

8 0

2 years ago

Please I need the answer for this question

nika2105 [10]

Answer:

I think this is the answer.

Step-by-step explanation:

I think it is C. but I am unsure, because I think it might also be able to be B.. Uh! I am so confused, but C. is my best guess.

3 0

2 years ago

What is the equation of the line that passes through the point (4.11) and is perpendicular to the line with the following equati

Klio2033 [76]

Answer:

$y = x +7$

Step-by-step explanation:

Given

$Point\ (x_1,y_1) = (4,11)$

Perpendicular to $y = -x + 14$

Required

Determine the line equation

An equation has the form

$y = mx + b$

Where

$m = slope$

By comparison with $y = -x + 14$

$m = -1$

Because the line is perpendicular to $y = -x + 14$ , the following relationship exists

$m_1 = \frac{-1}{m}$ i.e. the condition for perpendicularity

Where m1 is the slope of the equation that passes through $Point\ (x_1,y_1) = (4,11)$

So, we have:

$m_1 = \frac{-1}{-1}$

$m_1 = 1$

The line equation is then calculated using:

$y - y_1 = m_1(x - x_1)$

Where

$m_1 = 1$

$Point\ (x_1,y_1) = (4,11)$

So, we have:

$y - 11 = 1(x - 4)$

$y - 11 = x - 4$

Add 11 to both sides

$y - 11+11 = x - 4+11$

$y = x - 4+11$

$y = x +7$

<em>The B, C and D parts of your question are not clear.</em>

<em>Apply the same steps used in (a) above and you'll get your answers</em>

7 0

2 years ago

How do you write 1.25 as a fraction or mixed number in simplest form

amm1812

$1.25=1+0.25=1+\dfrac{25}{100}=1+\dfrac{25:25}{100:25}=1+\dfrac{1}{4}=\boxed{1\frac{1}{4}}$

5 0

2 years ago

76.3 nearest whole number

Scrat [10]

76.3 to the nearest whole number is....

76 (it remains the same because the number behind is a 3 (it isn't 5 or higher)

:) Hope it helps

8 0

2 years ago

Read 2 more answers