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andreev551 [17]
3 years ago
7

Please help me with these 2 questions will give brainly!

Mathematics
2 answers:
vivado [14]3 years ago
8 0

Answer:

28, -65

Step-by-step explanation:

mote1985 [20]3 years ago
3 0

Answer:

1. 28

2. -65

Step-by-step explanation:

The rule I learned, was that if there is an even number of negative signs, the outcome is positive. If there is an odd number of negative signs, the outcome is negative.

In the first question, we have 2 negative signs. So the outcome is positive. 28 is positive.

In the second, we have 3 negative signs, so the outcome is negative. -65 is negative.

I hope this helps!

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Please Help! Need this to pass :/
Serhud [2]

Answer:

63°

Step-by-step explanation:

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6 0
3 years ago
Melitta open an account using her life savings of 250,000 the account pays 5.2% compounded semi-annually how much will maleta ha
Veronika [31]
Answer: 41,504.71


Explanation:
It’s compound interest so you get the formula for that which is
A=p(1+r)^t
Fill in the values and change the % into a fraction
A=25,000(1+0.052)^10
Then solve
A=41,504.71

Hope this helped❤️
8 0
3 years ago
In a bag are eight red marbles and 2 blue marbles what chance does garcia have drawing a blue marble
Ierofanga [76]
Total number of balls = 8+2 = 10.

Chance of drawing a blue marble = total number of blue ball in bag
                                                        -------------------------------------------------
                                                          total number of balls in bag
 
                                                      =           2
                                                                -------
                                                                  10
 
                                                      =           1
                                                              ---------
                                                                   5

Hope this helps!
6 0
3 years ago
Determine if the two lines are perpendicular. Explain how you know by calculating the slopes and comparing the slopes in 2-3 sen
statuscvo [17]

Answer:

The two lines are not perpendicular because the product of their slopes is not equal to -1

Step-by-step explanation:

The product of the slopes of the perpendicular line is -1

  • That means one of them is and additive and multiplicative inverse of the other
  • If the slope of one of them is m, then reciprocal m and change its sign, then the slope of the perpendicular is -\frac{1}{m}
  • The formula of the slope is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Let us find from the graph two points lie on each line and calculate the slopes of them and then find its product if the product is -1, then the two lines are perpendicular

From the graph

∵ The red line passes through points (4 , 0) and (0 , 8)

∴ x_{1} = 4 and x_{2} = 0

∴ y_{1} = 0 and y_{2} = 8

∵ m=\frac{8-0}{0-4}=\frac{8}{-4}=-2

∴ The slope of the red line is -2

∵ The blue line passes through points (5 , 5) and (0 , -5)

∴ x_{1} = 5 and x_{2} = 0

∴ y_{1} = 5 and y_{2} = -5

∵ m=\frac{-5-5}{0-5}=\frac{-10}{-5}=2

∴ The slope of the blue line is 2

∵ The products of the slopes of the two lines = -2 × 2 = -4

∴ The product of the slopes of the lines not equal -1

∴ The two lines are not perpendicular

6 0
3 years ago
The sample space, S, of a coin being tossed three times is shown below, where Hand T denote the coin
Vilka [71]

Answer:

x : 1 | 2 | 3. | 4. | 5. | 6. | 7 | 8 |

p(x) : 1 | 2/3 | 2/3 | 1/3 | 2/3 | 1/3 | 1/3 | 0 |

8 0
4 years ago
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