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3 years ago

Add these polynomials and simplify. Enter your response in standard form.

Mathematics

2 answers:

lyudmila [28]3 years ago

7 0

Answer:

5x^7+4x^4-2x^2-4x-10

Step-by-step explanation:

hope this helps

Travka [436]3 years ago

6 0

Answer:

Step-by-step explanation: Your not the boss of me!!!!

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What is the product?<br> 3 x [1 -4 5 -7]

Roman55 [17]

This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.

Doing so leads to the answer [3 -12 15 -21]

Side note: I'm assuming the matrix given to you has 1 row and 4 columns.

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2 years ago

What number must you add to complete the square?

Travka [436]

B=9 (x+3)^2= x^2+6x+9

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2 years ago

Don’t need an explanation just the answer. Community takes too long lol

Nimfa-mama [501]

SOLUTION

Step 1: Find the area of the wall.

$\begin{gathered} A=l\times b \\ A=42\times25.5 \\ A=1071ft^2 \end{gathered}$

Step 2: Find the cost of wallpaper per square foot

$=\frac{total\text{ cost of wallpaper}}{Area\text{ of the wall}}$ $\begin{gathered} =\frac{771.12}{1071} \\ =0.72\text{ dollars} \end{gathered}$

The correct answer is B: $0.72

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6 months ago

Can someone help me with this question please

Shtirlitz [24]

Answer:

Step-by-step explanation:

all angles that are in a triangle add up to 180

x+80+39=180

x+119=180

x=61

Hope that helps :)

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2 years ago

CAN SOMEONE PLEASE HELP ME????

lakkis [162]

Answer and Step-by-step explanation:

$Greetings!$

$I'm~Isabelle~Williams~and~I~will~be~answering~your~question!$

$The~answer~to~your~question~is~option~``C".$

$\boxed{~y=0.026-0.05~}$

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2 years ago