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fiasKO [112]
3 years ago
13

Find the sum 3/4 + 5/16

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
5 0

3/4 also equals 12/16 so 12/16+5/16= 17/16 or 1 1/16

malfutka [58]3 years ago
4 0
Lock this picture
hope this help

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Here are two expressions whose product is a new expression, :
Vera_Pavlovna [14]

Answer:

1. Fill in the box with 1

2. Fill in the box with -2

Step-by-step explanation:

Expression:

(-2x^3 + [\ ]x)(x^{[\ ]}+1.5) = A

Solving (1): Fill in the box to make it a polynomial.

To make it a polynomial, we simply fill in the box with a positive integer (say 1)

Fill in the box with 1

(-2x^3 + [1]x)(x^{[1]}+1.5) = A

Remove the square brackets

(-2x^3 + x)(x^1+1.5) = A

(-2x^3 + x)(x+1.5) = A

Open bracket

-2x^4 - 3x^3 + x^2 + 1.5x = A

Reorder

A = -2x^4 - 3x^3 + x^2 + 1.5x

The above expression is a polynomial.

This will work for any positive integer filled in the box

Solving (2): Fill in the box to make it not a polynomial.

The powers of a polynomial are greater than or equal to 0.

So, when the boxes are filled with a negative integer (say -2), the expression will cease to be a polynomial

Fill in the box with -2

(-2x^3 + [-2]x)(x^{[-2]}+1.5) = A

Remove the square brackets

(-2x^3 - 2x)(x^{-2}+1.5) = A

Reorder

A = (-2x^3 - 2x)(x^{-2}+1.5)

Open brackets

A = -2x-3x^3-2x^{-1}-3x

Collect Like Terms

A = -3x^3-2x-3x-2x^{-1}

A = -3x^3-5x-2x^{-1}

Notice that the least power of x is -1.

Hence, this is not a polynomial.

3 0
3 years ago
Garrett buys lunch for himself and his friend. He buys 2 sandwiches, 2 fries, and 2 malts. How much did Garrett spend on lunch?
Yanka [14]

Answer:

How much is each sandwich, fry, and malt? I can out the answer in the comments, I just need more info.

8 0
3 years ago
I need help asap T>T
n200080 [17]

Answer:

3.4 yards cubed

Step-by-step explanation:

Volume is length x width x height

Length 2 4/5, Width 2, Height 3/5 so 2 4/5 x 2 x 3/5

It looks like they want the answer in decimal form, so you can convert the fractions into decimals.

For the length 2 4/5,  you divide the 4 by 5 to get a decimal of .8 so now it's 2.8

For the height of 3/5, you divide the 3/5 & get .6

Now it's 2.8 x 2 x .6 = 3.36 yards cubed which could get rounded up to 3.4 yards cubed

6 0
2 years ago
Please Find the solution to the following system using substitution or elimination: y = 3x + 7 y = -2x -3
Dmitrij [34]
Answer: A (-2, 1)
see image explanation attached

5 0
3 years ago
PLSSSSS SOMEONE ANSWER THIS QUESTION
liq [111]

Answer:

12πx⁴, 15x⁷, 16x⁹

Step-by-step explanation:

Volume of a cylinder: πr²h

Volume of a rectangular prism: whl

Plugging in variables for the volume of a cylinder, we get: 3x²·(2x)²·π

3x²·(2x)² = 3·2·2·x·x·x·x

= 12·x⁴

=12x⁴

Now, we just multiply that by π.

12x⁴·π = 12x⁴π

A monomial is a 1-term polynomial, so 12x⁴π is a monomial.

Plugging in variables for the volume of a rectangular prism, we get: 5x³·3x²·x²

5x³·3x² = 5·3·x·x·x·x·x

= 15·x⁵

= 15x⁵

Now, we just multiply that by x².

15x⁵·x²

= 15·x·x·x·x·x·x·x

= 15·x⁷

=15x⁷

A monomial is a 1-term polynomial, so 15x⁷ is a monomial.

Same steps for the last shape, another rectangular prism:

2x²·2x³·4x⁴

2x²·2x³

= 2·2·x·x·x·x·x

= 4·x⁵

= 4x⁵

Now, we just multiply that by 4x⁴.

4x⁵·4x⁴

= 4·4·x·x·x·x·x·x·x·x·x·

= 16·x⁹

= 16x⁹

A monomial is a 1-term polynomial, so 16x⁹ is a monomial.

6 0
2 years ago
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