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3 years ago

Draw a number line that represents 7+(-4).

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

You start from negative 7 in number line and you go left 4

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The number of calories in five randomly selected 1-ounce chocolate chip cookies of various brands was measured. the recorded num

Troyanec [42]

21
125 calories
150 calories
185 calories
110 calories
140 calories
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710 / 5

142calories

3 0

4 years ago

The chance of rain is 20%, the chance of it being sunny is 60%, and the chance of it

Charra [1.4K]

Answer:

0.6 = 60% probability that it is either sunny or rainy.

Step-by-step explanation:

We solve this question treating these events as Venn probabilities.

I am going to say that:

Event A: Rain

Event B: Sun

The chance of rain is 20%

This means that $P(A) = 0.2$

The chance of it being sunny is 60%

This means that $P(B) = 0.6$

The chance of it being sunny and rainy at the same time is 10%.

This means that $P(A \cap B) = 0.1$

Calculate, the probability that it is either sunny or rainy.

This is:

$P = P(A) + P(B) - 2P(A \cap B) = 0.2 + 0.6 - 0.2 = 0.6$

0.6 = 60% probability that it is either sunny or rainy.

3 0

3 years ago

F(x) = x2 - 4x – 8,<br> Graph

Tema [17]

Answer:

-2x-8

2x= -8

x = -4

( x - 2 )(x + 2 )

x=2

x= -2

6 0

3 years ago

20 POINTS BE QUICK!!!What is the solution set for x-3>3? Please explain your answer!

Montano1993 [528]

Answer:

{x:x>6}

Step-by-step explanation:

x-3>3

Add 3 to each side

x-3+3>3+3

x>6

{x:x>6}

3 0

3 years ago

The two lines shown intersect at the point (a,b). Find ab. Each unit square in the grid represents a distance of 1.

Ket [755]

Answer:

(9/5, 8/5)

Step-by-step explanation:

First you want to find the equations of the lines. One line is y = 2x - 2 and the other line is y = 1/3x + 1. Then you want to find the x and y that both work in the two equations.

y = 2x - 2

y = 1/3x + 1

Then you do 2x - 2 = 1/3x + 1

Then you do some maths and you get 9/5, and 8/5

6 0

4 years ago