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LuckyWell [14K]

3 years ago

12

The pet store started the day with 24 puppies and finished the day with 10 puppies. What was the percent change in the puppies a

t the store?
The answer choices are
1. 58%
2. 12%
3. 42%

2 answers:

Aleksandr [31]3 years ago

6 0

Answer:

58%

Step-by-step explanation:

11111nata11111 [884]3 years ago

3 0

A

14/24*100

Mark brainliest

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What is the length of the altitude of the equilateral triangle below?

Mazyrski [523]

ANSWER

The length of the altitude is $3\sqrt{3}$ units

<u>EXPLANATION</u>

The altitude of a triangle is the vertical height of the triangle.

From the diagram the altitude is $a$

Method 1: We can use Pythagoras theorem to find $a$

$6^2=a^2+3^2$

$6^2-3^2=a^2$

$36-9=a^2$

$27=a^2$

We take the square root of both sides,

$\sqrt{27}=a$

$\sqrt{9\times3}=a$

$\sqrt{9} \times \sqrt{3}=a$

$3\sqrt{3}=a$

Method 2 Using Trigonometry

$sin(60\degree)=\frac{a}{6}$

$6sin(60\degree)=a$

$a=6\times \frac{\sqrt{3}} {2}$

$a=3\sqrt{3}$

6 0

3 years ago

Read 2 more answers

Which of the following is a factor of 7x2 - 12x - 4? (6 points)

grin007 [14]

Answer:

We conclude that 'None of the above' is the correct answer.

Step-by-step explanation:

Given the expression

$7x^2\:-\:12x\:-\:4$

Breaking the expression into groups

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

Factor out $x$ from $7x^2\:+\:2x$

$=x\left(7x+2\right)$

Factor out -2 from $\left(-14x-4\right)$

$=-2\left(7x+2\right)$

so the expression becomes

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

$=x\left(7x+2\right)-2\left(7x+2\right)$

Factor out the common term $7x+2$

$=\left(7x+2\right)\left(x-2\right)$

Therefore, from the given options, we conclude that 'None of the above' is the correct answer.

4 0

3 years ago

kobusy [5.1K]

Is it 729 lol why would you put it as mixed number

8 0

3 years ago

Read 2 more answers

Brent's neighbor paid him for fixing her roof. Brent shares the money equally with his brother who helped him on the job. If Bre

anygoal [31]

X/2 because he divided the money into two equal parts and gave one part to his brother, so he only has one part of the x divided into two.
hope this helps.........

4 0

3 years ago

Find the value of k if it is known that the line y=kx+2 goes through point:

MrRissso [65]

Answer:

k = -10/7 and k = -3

Step-by-step explanation:

Given: <em>y</em> = <em>kx</em> + 2

where k is the slope of line and 2 is y-intercept.

∵ line <em>y</em> = <em>kx </em>+ 2 is passing through point <em>P</em> (-7, 12), ∴ <em>x</em> = -7 and <em>y </em>= 12

Now substituting the value of x and y in above equation,

<em>y </em>= <em>kx</em> + 2

12 =<em> k</em>(-7) + 2

-7<em>k</em> = 12 - 2

- 7<em>k</em> = 10

$k = \frac{-10}{7}$

In the same way, ∵ line <em>y</em> = <em>kx </em>+ 2 is passing through point <em>P</em> (3, -7), ∴ <em>x</em> = 3 and <em>y </em>= -7

<em>y </em>= <em>kx</em> + 2

Now substituting the value of x and y in above equation,

-7 =<em> k</em>(3) + 2

<em>3k</em> = -7 - 2

<em>3k</em> = - 9

<em>k</em> = -3

3 0

4 years ago