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3 years ago

15

Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 per

cent of the 50 students planned to attend. Kendra’s work is shown below.

1 answer:

asambeis [7]3 years ago

3 0

Answer:

Kendra should of divided by 2

Step-by-step explanation:

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Evaluate the expression.

Alekssandra [29.7K]

Step-by-step explanation:

9.(12/3)²

9.(144/9)

[The 9 in numerator and the 9 in denominator can be cancelled]

144

the answer is 144

Please mark me as brainliest

4 0

2 years ago

A line passes through the point (6,-1) and is perpendicular to the line with equation -2x + 3y = -6.

DENIUS [597]

Hi I don’t see what you want

4 0

3 years ago

Read 2 more answers

Solve the system by graphing. Write the solution as an ordered pair. y = 1/3x + 2 y = –x – 2

Dima020 [189]

ANSWER

The solution is where the two graphs intersect, which is
$(-3,1).$

EXPLANATION

The given system of equations are
$y = \frac{1}{3} x + 2$
and

$y = - x - 2$

We need to graph the two equations.

Let us graph

$y = \frac{1}{3} x + 2$
first.

We need at least two points.

You can choose any appropriate value for x and solve for y. Choosing zero makes our working easier. So let us plot the intercepts.

When
$x = 0$

$\Rightarrow \: y = \frac{1}{3} (0) + 2$

$\Rightarrow y = 0 + 2$

$\Rightarrow y = 2$

So this gives us the ordered pair,

$(0,2)$

When
$y = 0$
we get,

$0= \frac{1}{3} x + 2$

$\Rightarrow \: - 2 = \frac{1}{3} x$

$\Rightarrow \: - 2 \times 3= x$

$\Rightarrow \: -6= x$
This also gives the ordered pair

$(-6,0).$

We plot these two points and draw a straight line through them to obtain the blue graph in the attachment.

For the second line

$y = - x - 2$

We again find the intercepts and plot them.

When
$x = 0$

$y = - 0 - 2$

$\Rightarrow \: y = - 2$

This gives the ordered pair

$(0,-2)$

Also, when
$y = 0$

then we have,

$0 = - x - 2$

$2 = - x$

$x = - 2$

Then we again have the ordered pair,

$(-2,0)$

We plot these two points on the same graph sheet to obtain the red graph above.

The intersection of the two lines is
$(-3,1)$

You will get good grades so don't worry much.

4 0

3 years ago

Pre for Question 4 of 10 points)

Diano4ka-milaya [45]

Answer:

25 almost full boxes

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

natulia [17]

Answer:

m^2+5m+25/4

perfect square trinomial^^

3 0

2 years ago