2 years ago

Simplify 2x – 9y + 4x + 11y by combining like terms and then evaluate at x = -2 and y = 4.

Mathematics

1 answer:

Mashcka [7]2 years ago

7 0

Step-by-step explanation:

= 2x - 9y + 4x + 11y

First of all combining like terms

= 2x + 4x - 9y + 11y

= 6x + 2y

Now putting values

= 6 (-2) + 2(4)

= - 12 + 8

= - 4

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A square with sides of length 5 is positioned inside a square with sides of length 7. What is

kow [346]

Answer: 24cm²

Step-by-step explanation:

Let square with length 5cm be represented with A, and square with 7cm be represented with B.

Area of a square is L²

Square A will have an area of 5² = 25cm²

Square B will have an area of 7² = 49cm²

Total area between the two squares will be = Area of Square (B - A)

i.e.

Total Area = 49cm² - 25cm² = 24cm²

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

What is the answer of 11 6/9 - 4 4/9

IrinaK [193]

Answer:

$7 \frac{2}{9}$

Step-by-step explanation:

here is your answer

Calculation steps:

$11 \frac{6}{9} - 4 \frac{4}{9}$

$= (14 - 4) + ( \frac{6}{9} - \frac{4}{9} )$

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1 year ago

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Your turn!<br> Problem 1<br> Determine the translation that maps point B(2, 1) to point B'(-4,5).

Charra [1.4K]

Answer:

Shift 4 units up, and 4 units to the left.

Step-by-step explanation:

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3 years ago

Pls ANSWERRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

natta225 [31]

Hi there!

$\large\boxed{ 9.4m}$

Find the perimeter using the formula:

P = 2l + 2w

It is given that the dimensions are 2.8 × 1.9 so plug these number into the equation:

P = 2(2.8) + 2(1.9)

P = 5.6 + 3.8

P = 9.4m

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2 years ago