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3 years ago

Identify m∠EOF. HELP PLEASE!! I don't understand!

Mathematics

1 answer:

dedylja [7]3 years ago

6 0

Answer: 119°

Step-by-step explanation:

A circle equals 360° degress. If you subtract the two angles shown in the picture you'll get 238°.

Now vertical angles are congurent thus if we divide 238 into 2 we get 119°.

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A bag contains 10 marbles: 4are green, 2are red, and 4 are blue. Carmen chooses a marble at random, and without putting it back,

kupik [55]

Answer:

2/15

Step-by-step explanation:

There is a 4/10 probability that she chooses blue the first time, but the second time it is a 3/9 chance because she didn't put the marble back so there are 9 marbles in total, 3 blue ones.

4/10 x 3/9 = 2/5 x 1/3 = 2/15

I hope this helps :)

Edit: Messed up the multiplication, whoops!

4 0

3 years ago

Read 2 more answers

4. There are 11 shelves that contain 5,676 rolls of tape. How many rolls are on each shelf?

Phoenix [80]

Answer: The answer is 516 on each shelf

Brainliest would be nice

Step-by-step explanation:

7 0

3 years ago

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Which of the following is not a rate

kifflom [539]

B is a ratio but there are no units so it’s not a rate.

8 0

3 years ago

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A nursery builds protective cylindrical covers, as shown, to protect seedlings from frost. The cover has a top, but no bottom. H

photoshop1234 [79]

<h3>Answer:</h3>

414.48 square feet is needed to make 3 dozen of the covers.

<h3>Step-by-step explanation:</h3><h3>Step 1: Find the circumference, perimeter, of the circle.</h3>

To find the circumference, you multiply the 4 by π, and π is 3.14, and you get 12.56.

<h3>Step 2: Find the area of the side, not including the circle.</h3>

The 12.56 is literally the length of the side. The width is the height of the cover which is 10 inches. 12.56 multiplied by 10 is 125.6 square inches.

Step 3: Add them up.

125.6 + 12.56 is 138.16

<h3>Step 4: Multiply 138.16 by three dozen (36 [a dozen is 12]).</h3>

138.16 multiplied by 36 is 4973.76 square inches.

<h3>Step 5: Convert 4973.76 square <u>inches</u> to square <u>feet</u>.</h3>

12 inches is 1 foot so we divide 4973.76 by 12. You get 414.48 square feet.

7 0

3 years ago

for In the given expression, calculate as indicated. Express your answer as a single polynomial in standard form. 4x^(3)-2x^(2)

matrenka [14]

Answer:

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

Step-by-step explanation:

A polynomial in standard fulfills the following condition:

$y = \Sigma_{i=0}^{m}\,c_{i}\cdot x^{i}$ , $\forall\,i\in \mathbb{N}$ , $0 \leq i \leq m$

Let be $y = (4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ , which is now handled algebraically:

1) $(4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ Given

2) $(4\cdot x^{3}-2\cdot x^{2}+9) +(-1)\cdot (6\cdot x^{2}-6\cdot x + 5)$ $(-1)\cdot a = -a$

3) $(4\cdot x^{3}-2\cdot x^{2}+9) +[(-1)\cdot (6\cdot x^{2})+(-6\cdot x)\cdot (-1)+5]$ Definition of substraction/Distributive property

4) $(4\cdot x^{3}-2\cdot x^{2}+9)+(-6\cdot x^{2}+6\cdot x + 5)$ $(-1)\cdot a = -a$ / $(-a)\cdot (-b) = a\cdot b$

5) $4\cdot x^{3}+ (-2\cdot x^{2}-6\cdot x^{2})+6\cdot x + (9+5)$ Associative and commutative properties

6) $4\cdot x^{3}-8\cdot x^{2}+6\cdot x + 14$ Distributive property/Definition of addition

7) $14 + 6\cdot x -8\cdot x^{2}+4\cdot x^{3}$ Commutative property/Result

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

7 0

3 years ago