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2 years ago

You draw a card at random from a deck that contains 3 black cards and 7 red cards.

2 answers:

6 0

There are 10 cards in total because 3 + 7 = 10
Because there are 3 black cards, the probability of drawing a black card would be 3/10.

inna [77]2 years ago

3 0

Answer:

The answer is 3/10

Step-by-step explanation:

There are 3 black cards and the total number of cards is 10

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Lines s and L are perpendicular.If the slope of the line s is 5, what is the slope of the line f?

Ivanshal [37]

Answer:

A) -1/5

Step-by-step explanation:

Let slope of line s be m₁.

m₁ = 5

Let the slope of L be m₂

As s and L are perpendicular,

m₁ * m₂ = -1

5 * m₂ = -1

m₂ = -1 /5

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3 years ago

Lines Line A E and Line G H are parallel in the image below. The image will be used to prove that the sum of the measures of the

mr Goodwill [35]

Answer:

Angles F and C are congruent

Step-by-step explanation:

In the figure attached, the missing image is shown.

From the figure, it can be seen that Angles F and C are opposite angles. Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent .

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2 years ago

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I’m actually so dumb!!!<br> How???<br> Answer???

Pani-rosa [81]

Standard form: 2x - 16 = 0

Factorization: 2(x - 8) = 0

Solutions: x = 16/2 = 8

Hope this helps!

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2 years ago

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Commutative property of addition

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I’m having a hard time understanding substitution. Please help!

Vikentia [17]

$b_1=\frac{2A}{h}-b_2$

Step-by-step explanation:

Given expression is;

$A=\frac{h(b_1+b_2)}{2}$

Solving for $b_1$

Multiplying both sides by 2

$2*A=\frac{h(b_1+b_2)}{2}*2\\2A=h(b_1+b_2)$

Dividing both sides by h

$\frac{2A}{h}=\frac{h(b_1+b_2)}{h}\\\frac{2A}{h}=b_1+b_2$

Subtracting $b_2$ from both sides

$\frac{2A}{h}-b_2=b_1+b_2-b_2\\\frac{2A}{h}-b_2=b_1\\b_1=\frac{2A}{h}-b_2$

$b_1=\frac{2A}{h}-b_2$

Keywords: division, subtraction

Learn more about subtraction at:

#LearnwithBrainly

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2 years ago