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3 years ago

There are six purple marbles and four pink marbles in a box. What is the probability of Elsa picking a pink marble out the box?

1 answer:

7 0

Purple marbles = 6
Pink marbles = 4
Total = 10

So,
$\dfrac{4}{10} = \dfrac{2}{5}$

The answer is A. 4 out of 10

Hope this helps. - M

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Help me please 7th grade math

laiz [17]

Answer:

i also dont know

Step-by-step explanation:

im also in grade7 answering math

4 0

3 years ago

Read 2 more answers

Consider the following 8 numbers, where one labelled

cupoosta [38]

Answer:

x = 73

x = -35

Step-by-step explanation:

Here are the 8 numbers:

34, 31, 15, x, 17, 4, 20, 25

Here are the 8 numbers in ascending order with x as the greatest number:

4, 15, 17, 20, 25, 31, 34, x

x - 4 = 69

x = 73

Here are the 8 numbers in ascending order with x as the smallest number:

x, 4, 15, 17, 20, 25, 31, 34

34 - x = 69

-x = 69 - 34

-x = -35

x = -35

Answer:

x = 73

x = -35

8 0

2 years ago

Find the expression that represents the length of the hypotenuse of a right triangle whose legs measure m^2-n^2 and 2mn

My name is Ann [436]

$\bf c^2=a^2+b^2\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
------\\
a=m^2-n^2\\
b=2mn
\end{cases}\\\\\\ c^2=(m^2-n^2)^2+(\underline{2mn})^2
\\\\\\
c^2=m^4-2m^2n^2+n^4+\underline{2^2m^2n^2}
\\\\\\
c^2=m^4-2m^2n^2+n^4+{4m^2n^2}
\\\\\\
c^2=m^4+2m^2n^2+n^4\impliedby \textit{perfect square trinomial}
\\\\\\
c^2=(m^2+n^2)^2\implies c=\sqrt{(m^2+n^2)^2}\implies c=m^2+n^2$

7 0

4 years ago

a line that contains point (2, –2) and perpendicular to another line whose slope is –1. What is the equation of the line and gra

dolphi86 [110]

It would x - 4 = y because tge opposite reciprocal of -1 is 1 and so using point slope form y + 2 = x - 2 and when simplified youll get x - 4 = y.

5 0

3 years ago

A(1) = -13 a(n-1) + 4 find the 2nd term in the sequence

kirill115 [55]

Solution

The sequence is an Arithmetic sequence.

Here the 1st term = -13

An = A(n-1) + 4

Therefore, the common difference (d) = 4

2nd term = first term + common difference

2nd term = -13 + 4 = -9

The answer is -9.

5 0

3 years ago