All categories

3 years ago

(-3u^2+7u-2)+(4u^2+6u+1)

Mathematics

1 answer:

nevsk [136]3 years ago

7 0

Answer:

(-3u^2 + 7u - 2) + (4u^2 + 6u + 1)

= -3u^2 + 7u - 2 + 4u^2 + 6u + 1

= 4u^2 - 3u^2 + 7u + 6u + 1 - 2

= u^2 + 13u - 1

You might be interested in

Solve the equation by factoring. z2 − 6z − 27 = 0

Lisa [10]

Answer:

The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)

Then equal the parts of the binomial to zero

x - 9 = 0

x + 3 = 0

You must get x by its self.

When you do so, you'll have the answer as -3 and 9

Step-by-step explanation:

4 0

3 years ago

The area of rectangle A is double the area of rectangle B explain your answer

dybincka [34]

A's area is 4x3=12, B=2x3=6, so yes, A is twice the area of B

a Answer: YES

b Answer: One side doubled, the other stayed the same, so area doubled.

4 0

3 years ago

A rectangular garden has an area of 360 square feet. the length of the garden is 9 feet longer than the width. find the dimensio

rosijanka [135]

$\huge\underline{\frak{ \: \: \: \: \: \: Solution : \: \: \: \: \: \: }} \\ \\$

$\frak {\pink{Let}}\begin{cases} \sf{\red{Breadth \: be \: x}}\\ \sf{\orange{The \: Length = x + 9}}\end{cases} \\$

$\bigstar \: \underline{\textsf{According to the given Question :} }\\ \\$

$:\implies \sf Area = Length \times Breadth \\ \\ \\$

$:\implies \sf 360=(x + 9 ) x \\ \\ \\$

$:\implies \sf 360= {x}^{2} + 9x \\ \\ \\$

$:\implies \sf {x}^{2} + 9x - 360 = 0\\ \\ \\$

$:\implies \sf {x}^{2} + 24x - 15x - 360 = 0\\ \\ \\$

$:\implies \sf x(x + 24) - 15(x + 24) = 0\\ \\ \\$

$:\implies \sf (x + 24) \: (x - 15) = 0\\ \\ \\$

$:\implies \underline{ \boxed{ \sf x = - 24 \: or \: x = 15}}\\ \\ \\$

$\therefore\:\underline{\textsf{Ignoring the negative value, the Breadth of rectangular garden is \textbf{15 ft}}}. \\ \\ \\$

$\bigstar \: \underline{\textsf{Dimensions of rectangular garden :}} \\ \\$

$\bullet\:\:\textsf{The Breadth of rectangular garden = x = \textbf{15 ft.}} \\ \\$

$\bullet\:\:\textsf{The Length of rectangular garden = x + 9 = 15 + 9 = \textbf{24 ft.}} \\ \\$

6 0

3 years ago

Donna purchased 3 bags of dog food. The total cost of her purchase, including a tax of $3.96, is $53.46.What is the cost of 1 ba

Blizzard [7]

53.46-3.96=49.50
49.50/3= $16.50 each

8 0

4 years ago

Read 2 more answers

HELP IN NUMBER 12 ...!

olasank [31]

The answer is 69.45
hope this helps :)

6 0

3 years ago

Read 2 more answers