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3 years ago

12

There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. Barbara selects 2 ice creams at r

andom without replacement. What is the probability that she selects 2 chocolate ice creams? Independent or dependent?

1 answer:

Aleonysh [2.5K]3 years ago

5 0

14.29 percent probability or 2 out of 14. Dependent variable.

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Please due in an hour !!!

Masja [62]

The correct answer is c.

6 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=4x%20%7B%7D%5E%7B2%7D%20%20%2B%2020x%20%2B%2025" id="TexFormula1" title="4x {}^{2} + 20x + 25

BigorU [14]

$\sf{\qquad\qquad\huge\underline{{\sf Answer}}}$

Let's Solve ~

$\qquad \sf \dashrightarrow \: 4 {x}^{2} + 20x + 25$

$\qquad \sf \dashrightarrow \: 4 {x}^{2} + 10x + 10x + 25$

$\qquad \sf \dashrightarrow \: 2x(2x + 5) + 5(2x + 5)$

$\qquad \sf \dashrightarrow \: (2x + 5) (2x + 5)$

$\qquad \sf \dashrightarrow \: (2x + 5) {}^{2}$

or

$\sf{\qquad \sf \dashrightarrow \: 4x² + 20x + 25 }$

$\sf{\qquad \sf \dashrightarrow \: (2x)² + (2 \sdot 2x \sdot 5) + (5)²}$

[ it's similar to expression - a² + 2ab + b² that is equal to (a + b)² ]

so, let's use this identity here to factorise :

$\sf{\qquad \sf \dashrightarrow \: (2x + 5)²}$

I hope it was helpful ~

3 0

2 years ago

Find the slope and y-intrcept of <br><br>y=5/3x -4

natima [27]

Answer:

Slope: 5/3

y-intercept: (0, -4)

Step-by-step explanation:

Slope-Intercept Formula: y = mx + b

<em>y</em> is your output.

<em>m</em> is your slope.

<em>b</em> is your y-intercept.

7 0

3 years ago

Q and D are vertices of a polygon. Q' and D' are vertices of the polygon's image after a translation. Determine the translation,

snow_lady [41]

Answer:

(6,—6)

Step-by-step explanation:

Draw the points on a table. The answer will be (6,—6)

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2 years ago

S is a subset within a universal set, U

nataly862011 [7]

Keys on a keyboard because it can’t be letters because there are numbers and punctuation marks, it can’t be numbers because there are letters and punctuation marks, it can’t be punctuation merks either cause there are letters and numbers. So the only option left is keys on a keyboard cause it has all letters numbers and punctuation marks

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1 year ago