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3 years ago

SOMEONE PLEASE HELP ME ITS URGENT (PICTURE)

Mathematics

1 answer:

labwork [276]3 years ago

4 0

Answer:

Question #1

x and its opposing side are equal in length.
One of the sides have no fence.

Set up an equation to find x:

$x+x+10=26\\2x=26-10\\2x=16\\x=8$

The length of the side marked x is 8.0 m.

Question #2

New length = 10 + 1 = 11 cm
New width = x
New perimeter = old perimeter = 34 cm

Set up an equation to find x

$11+11+x+x=34\\2x=34-22\\2x=12\\x=6$

The new width is 6 cm.

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Will give extra points if you get it right <3

Semmy [17]

Answer:

17x² + 2x – 3

Step-by-step explanation:

(9x2 + 3x – 5) + (8x2 – x + 2) →

(9x² + 3x – 5) + (8x² – x + 2) →

[Group like terms]

(9x² + 8x²) + (3x – x) + (2 – 5) →

[Simplify]

17x² + 2x – 3

7 0

3 years ago

To write the polynomial 3x3 + x2 − 8x5 + 2x3 − 4x in standard form, which terms should be combined? A. 3x3 and 2x3 B. 3x3, 2x3,

djyliett [7]

Answer:

Option A. is correct

Step-by-step explanation:

Like terms are those terms that have same variables of same powers. Terms that are not like terms are said to be unlike terms.

For example $2x^3,7x^3$ are like terms and $5x^2,9x^5$ are unlike terms.

Given polynomial is $3x^3+x^2-8x^5+2x^3-4x$

Like terms need to be combined to write the polynomial in standard form

Here, like terms are $3x^3,2x^3$

Option A. is correct.

5 0

4 years ago

for cases of n objects taken n at a time the number of possible combinations is _____________ the number of possible permutation

slavikrds [6]

Answer:

I believe your answer is less than or equal to. I hope this helps.

8 0

3 years ago

Read 2 more answers

PLEASE HELP ILL GIVE BRAINLY IF CORRECT

zhannawk [14.2K]

Answer:

I have tried solving each one in the right order and I keep getting answers that aren't options.

I will put the answers I got but none of them match up.

-5-(32+2)

-5-(34)= -39

22-3⋅6

22-18=4

-2+4⋅32-6

-2+128-6

126-6= 120

5+42÷2(3)

5+42÷6

5+7=12

I have done the math on my own and used desmos calculator these are the answers that come up. I'm sorry.

8 0

4 years ago

Solve using the elimination method: X-3y=7 3x + 3y=9

sergij07 [2.7K]

Answer:

$x=4\\\\y=-1$

Step-by-step explanation:

Given Equation:

$x-3y=7$ Equation:1

$3x + 3y=9$ Equation:2

Dividing Equation:2 by '3' both the sides:

$x+y=3$

or $x=3-y$ Equation:3

Putting the vale of 'x' in Equation:1

$x-3y=7$

$(3-y)-3y=7\\\\3-y-3y=7\\\\3-4y=7\\\\$

Subtracting '3' both sides

$-4y=7-3\\\\-4y=4$

$y=\frac{4}{-4}$

$y=-1$

Putting value of 'y' in Equation:3

$x=3-y$

$x=3-(-1)\\\\x=3+1\\\\x=4$

The solution of the equations is :

$x=4\\\\y=-1$

7 0

4 years ago