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2 years ago

I need help please !!!!!!

Mathematics

1 answer:

Len [333]2 years ago

8 0

4) 975
5) 53/7650
…… ,… … … …

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Select the number line that shows that two opposite numbers have a sum of<br> 0.

dimulka [17.4K]

Answer:

Step-by-step explanation:

When you have two opposite numbers on a numberline, that is, a digit that has a negative value and the same digit having a positive value, when you add them together, we would have 0.

i.e. -a + b = 0

In the above options given, the numberline that shows this particular case is the numberline in option D.

In option D numberline, the sum of -1 and +1 equals zero.

5 0

2 years ago

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Which is the best way to answer a 10 question multiple choice test in which each question has 6 choices for answers

Firdavs [7]

Answer:

Rolling a die.

Step-by-step explanation:

A die has 6 sides for every answer and the only choice regarding the number 6 and you can roll (questions) times.

6 0

2 years ago

Can someone help me

algol13

Answer:

Step-by-step explanation:

A would be your answer.

3 0

3 years ago

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1. Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations

sasho [114]

Answer:

The equation is $y=2x^2+4x-7$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

The point (-4,9) must satisfy this function,

$\Rightarrow a(-4)^2+b(-4)+c=9$

$\Rightarrow 16a-4b+c=9...(1)$

The point (0,-7) must also satisfy this function,

$\Rightarrow a(0)^2+b(0)+c=-7$

$\Rightarrow c=-7...(2)$

The point (1,-1) must also satisfy this function,

$\Rightarrow a(1)^2+b(1)+c=-1$

$\Rightarrow a+b+c=-1...(3)$

We put equation 2 into equation 1 to get;

$\Rightarrow 16a-4b-7=9$

$\Rightarrow 16a-4b=16$

$\Rightarrow 4a-b=4...(5)$

We again put equation 2 into equation 3 to get;

$\Rightarrow a+b-7=-1$

$\Rightarrow a+b=6...(6)$

We add equation 5 and 6 to get;

$5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation 6 to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The equation is therefore $y=2x^2+4x-7$

5 0

2 years ago

Find an equation of the line parallel to y = -2x + 1 and that passes through the<br> point (-3,-4)

jek_recluse [69]

Answer:

y = - 2x -10

Step-by-step explanation:

y = -2x + 1 Slope , m = -2 parallel slope is the same

point slope form of new line

(y - -4)= -2 ( x - -3)

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2 years ago