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3 years ago

Find the slope of the line through each pair of points (-2,-1) and (8,-3)

Mathematics

2 answers:

erastova [34]3 years ago

6 0

Slope = y2 - y1/x2 - x1
= -3 - (-1)/8 - (-2)
= -3 + 1/ 8 + 2
= -2/ 6
= - 1/3

hope this helps :)

frez [133]3 years ago

5 0

Slope is rise/run so you need the difference between each x and y
-2 and 8 have 10 units between them
-1 and -3 have 2 units
y is the rise, and x is the run
so your slope is 2/10 or 1/5
it is negative because the line is going downward
final answer is -1/5

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I don't really understand the question so can someone help me answer the question please?

Ksivusya [100]

Answer:

1/ 3

Step-by-step explanation:

If each of the cards is turned over, the probability of picking up a card of one type P(E) becomes equal to:

=> P(E) = number of cards of the required type/ total number of cards

● Total number of spades( ♤ ) = 3

{the queen, one ace and the nine are all spades}

● Total number of cards = 6

Probability of drawing a spade= 3/ 6

= 1/ 2

● Total number of "7" = 1

● Total number of cards = 6

Probability of drawing a 7

= 1/ 6

Now, what's asked is the difference in the probabilities of drawing a spade and a seven.

= 1/ 2 - 1/ 6

= 3/ 6 - 1/ 6

= 2/ 6

= 1/ 3

Hence, 1/ 3 of a greater chance of drawing a spade over a 7.

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3 years ago

The scatterplot models the relationship between the length of a Louisiana alligator and the width of the alligators belly.Which

erastovalidia [21]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

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Nataly [62]

We are taking one quarter of the 2/5 of the students who play sports.
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3 years ago

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Andru [333]

The height of the cone is 4 cm (approx).

Step-by-step explanation:

Given,

The radius (r) of the cone = 4.96 cm

Volume (V) = 102 cm³

To find the height (h) of the cone.

Formula

The volume of a cone V = $\frac{1}{3}$ πr²h

Now,

According to the problem,

$\frac{1}{3}$ πr²h = 102

or, $\frac{1}{3}$ × $\frac{22}{7}$ ×(4.96)²h= 102

or, h = $\frac{102X7X3}{4.96^{2}X22 }$

or, h = 3.95 = 4 (approx)

so,

Height = 4 cm (approx)

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3 years ago

State what additional information is required in order to know what the triangles are congruent by SSS.

soldi70 [24.7K]

Answer:

see below

Step-by-step explanation:

In order to show congruence by SSS (Side-Side-Side), you need to have 3 pairs of sides congruent. The diagram shows two pairs congruent (those of choice B), so you need information that the third pair of sides is congruent, choice D.

Any answer choices involving angles are irrelevant for SSS congruence.

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4 years ago