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3 years ago

THIS IS A TIMED TEST. PLEASE SEND HELP!!! is my shading correct on my inequality?

Mathematics

1 answer:

gladu [14]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

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Which of the following sets is not finite?

dmitriy555 [2]

The Second one

Because if you do that by there you can do that

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2 years ago

What is the solution of 3 sqrt x+8=-4?

ryzh [129]

Answer:

$x=-72$

Step-by-step explanation:

The given equation is $\sqrt[3]{x+8}=-4$ .

We cube both sides of this equation to obtain;

$(\sqrt[3]{x+8})^3=(-4)^3$ .

This implies that;

$(x+8)=-64$

We group similar terms to obtain;

$x=-64-8$

We simplify the right hand side of the equation to obtain;

$x=-72$

Therefore x=-72 is the solution of the given equation.

4 0

3 years ago

Are these calculations correct? If so, please put in descending order:

Mkey [24]

No because the last one is not correct and if you want to text me back if you won't me to do it for you for the first three you can

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3 years ago

A side of the triangle below has been extended to form an exterior angle of 62°. Find the value of xx.

umka21 [38]

Answer:

Photo?

Step-by-step explanation:

If there is a photo linked I dont see it

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3 0

3 years ago

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