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2 years ago

Remember, You.did.not.get.this.through.hardwork

Mathematics

1 answer:

docker41 [41]2 years ago

5 0

Thanks i appreciate it

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Free points help me

geniusboy [140]

The answer is d your welcome

3 0

2 years ago

Read 2 more answers

7(3b-1)=2b-26 please help and give me step by step ☺️

Colt1911 [192]

Answer:

b = -1

Step-by-step explanation:

7(3b-1): 7 goes into the numbers by multiplying. This will give you 21b-7.

So now the equation should be like 21b-7=2b-26.

-7 and 2b swap places, making 21b-2b=7-26. It will give you 19b= -19.

Finally divide the two numbers (-19 / 19) and the solution will be b= -1.

If I didn't make a clear answer or a good explanation, please comment. I sometimes mess up my steps, and this is my first time using this.

5 0

2 years ago

Read 2 more answers

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

Write an area word problem so that the solution is 36 square units

yawa3891 [41]

Answer:

Find the area of a cardboard box with a length of 9 inches and a width of 4 inches.

Step-by-step explanation:

9 in × 4 in = 36 in²

6 0

2 years ago

{2700,-900,300…}is the sequence geometric

Zolol [24]

Answer:

Yes, the sequence is geometric.

Step-by-step explanation:

The rule is divide by -3

Multiplying or dividing is a geometric sequence

3 0

1 year ago