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3 years ago

WORTH BRAINLIST!!! What is the value of the expression 2 + 3^2 ⋅ (3 − 1)? 20 22 23 32

Mathematics

1 answer:

Wittaler [7]3 years ago

3 0

Answer:

You have to use PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction), and solve in that order. Your question is:

2 + 32 ⋅ (3 − 1)

First, solve the Parentheses part of the question. 3-1 is 2. Your question is now:

2+32*2

Now, solve the multiplication part of the question. 32*2 is 64. Your question is now:

2+64

This is now an easy problem to solve.

The answer is 66.

Hope this helps! :)

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Plsss helppp I’m dying!! —> Complete the square to determine if the equation is a circle, quadratic equation, or other

sashaice [31]

a) The equation represents an ellipse.

b) The equation represents a circle.

c) The equation represents a parabola.

<h3>How to infer the graphical form of a general equation</h3>

In this problem we have general equations of the form A · x² + B · y² + C · x + D · y + E = 0, which have to be modified into standard form to infer its graphical form. This procedure can be done by algebra properties:

16 · x² + 4 · y² + 96 · x - 8 · y + 84 = 0

[(4 · x)² + 2 · 12 · (4 · x)] + [(2 · y)² - 2 · 2 · (2 · y)] = - 84

[(4 · x)² + 2 · 12 · (4 · x) + 144] + [(2 · y)² - 2 · 2 · (2 · y) + 4] = 64

(4 · x + 12)² + (2 · y + 2)² = 64

4² · (x + 3)² + 2² · (y + 2)² = 64

(x + 3)² / 4 + (y + 2)² / 16 = 1 : Ellipse

x² + y² + 8 · x - 6 · y - 15 = 0

(x² + 8 · x) + (y² - 6 · y) = 15

(x² + 2 · 4 · x + 16) + (y² - 2 · 3 · y + 9) = 40

(x + 4)² + (y - 3)² = 40 : Circle

x² + 6 · x + 4 · y + 5 = 0

x² + 6 · x + 5 = - 4 · y

y = - (1 / 4) · x² - (3 / 2) · x - (5 / 4) : Parabola

To learn more on ellipses: brainly.com/question/19507943

#SPJ1

4 0

1 year ago

At a supermarket potatoes cost 0.39 per pound. If a 10-pound bag costs 2.79,how much money will you save if you buy the 10-pound

GenaCL600 [577]

$1.11 .39 times ten is 3.90 minus 2.79 is $1.11

3 0

3 years ago

Read 2 more answers

Chanelle deposits $7,500 into the bank. She does not withdraw or deposit money for 6 years. She earns 6% interest during that ti

Lubov Fominskaja [6]

Answer:

2700

Step-by-step explanation:

3 0

3 years ago

Whatever it says and plz hurry i don’t wanna fail this quiz

FinnZ [79.3K]

Answer:

Read this passage from Through the Looking-Glass.

She looked at the Queen, who seemed to have suddenly wrapped herself up in wool. Alice rubbed her eyes, and looked again. She couldn't make out what had happened at all. Was she in a shop? And was that really—was it really a SHEEP that was sitting on the other side of the counter? Rub as she could, she could make nothing more of it: she was in a little dark shop, leaning with her elbows on the counter, and opposite to her was an old Sheep, sitting in an arm-chair knitting, and every now and then leaving off to look at her through a great pair of spectacles.

“What is it you want to buy?” the Sheep said at last, looking up for a moment from her knitting.

“I don't QUITE know yet,” Alice said, very gently. “I should like to look all round me first, if I might.”

“You may look in front of you, and on both sides, if you like,” said the Sheep: “but you can't look ALL round you—unless you've got eyes at the back of your head.”

The tone of this passage is best described as

serious and reflective.

scientific and factual.

light and romantic.

imaginative and humorous.Step-by-step explanation:

6 0

3 years ago

What is the value of x to the nearest tenth?

Nezavi [6.7K]

Step-by-step explanation:

Hello!!!

Let's workout with this figure.

BC is a chord, O is the centre and OA is the perpendicular bisector.

AB = 1/2 of BC (according to circle's theorem)

so, A B = 1/2 × 25.6

Therefore, the measure of AB is 12.8.

now, let's have a small work with triangle AOB.

as it is a Right angled triangle, taking angle B as refrence angle we get,

p=x

b=12.8

h= OB = 16 (it is also a radius.)

now, 

by Pythagoras relation we get, 

 $p = \sqrt{ {h}^{2} - {b}^{2} }$ 

or, x = root 16^2- 12.8 ^2

by simplification, we get;

the measure of x is 9.6.

Therefore, the value of x is 9.6.

Hope it helps...

8 0

3 years ago