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3 years ago

Someone Help I will give Branlist for whoever answers first!!!

Mathematics

2 answers:

Assoli18 [71]3 years ago

6 0

Answer:

A its like, getting a plate before you make a sandwich, you have to get a plate first, or else you can't start making your sandwich.

Step-by-step explanation:

you don't have to give brainliest, im just helping lol

Tema [17]3 years ago

6 0

Find the b
Because yea

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Will give brainliest, please help fast

Gekata [30.6K]

Answer:

Converting the equation $x^2-20x+13=0$ into completing the square method we get: $\mathbf{(x-10)^2=87}$

Step-by-step explanation:

we are given quadratic equation: $x^2-20x+13=0$

And we need to convert it into completing the square method.

Completing the square method is of form: $a^2-2ab+b^2=(a-b)^2$

Looking at the given equation $x^2-20x+13=0$

We have a = x

then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20

So, 20x in form of 2ab can be written as: 2(x)(10)

So, we need to add and subtract (10)^2 on both sides

$x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87$

So, converting the equation $x^2-20x+13=0$ into completing the square method we get: $\mathbf{(x-10)^2=87}$

4 0

3 years ago

Given the diagram below, what is cos 45

Mamont248 [21]

Hey

Your answer is pretty simple

1/√2
Don't forget to mark Brainliest :^)

5 0

4 years ago

What is the order magnitude for the number of days in a year ?

Scrat [10]

<span> answer is 2: 1 x 10^2 –days.

I hope this helps!</span>

8 0

3 years ago

Read 2 more answers

Four friends attend a school play and pay $6.75 per ticket. Each also buys a Healthy Snack Bag sold by the Theater Club. If the

gogolik [260]

Answer:

$2.5

Step-by-step explanation:

Multiply 4 friends by $6.75 and find the product.

Subtract $27 from $37

Divide 10 by 4

6 0

3 years ago

Read 2 more answers

What is the answer to number 4

laiz [17]

Y=-2x^2+2x-4. Should be correct

3 0

4 years ago