4 years ago

2(x-2)+7>-1 and 5-4x>9

Mathematics

1 answer:

larisa [96]4 years ago

3 0

Answer:

-2 < x < -1

Step-by-step explanation:

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Step-by-step explanation:

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Which expression is equivalent to (2r2+r - 1) – (3r2+48 - 5)?

BigorU [14]

Answer:

$-r^2-3r+4$

Step-by-step explanation:

The question is to simplify the expression $(2r^2+r-1)-(3r^2+4r-5)$

First, we can eliminate the 2nd parenthesis expression by changing signs of all the terms since there is a "-" sign in front. Then we add the "Like Terms". The process is shown below:

$(2r^2+r-1)-(3r^2+4r-5)\\=2r^2+r-1-3r^2-4r+5\\=-r^2-3r+4$

The first answer choices (has some typos) is correct. The correct answer is $-r^2-3r+4$

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3 years ago

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Marysya12 [62]

Answer:

8,905cm²

Step-by-step explanation:

Area= Length × Breadth

=137cm × 65cm

= 8,905cm²

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3 years ago

If Angie spins the spinner 250 times, predict the number of times it will land on green.

Nadusha1986 [10]

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Step-by-step explanation: 250 spins times the amount of greens expected equals 2500.

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3 years ago

Work out the area of this shape. ? cm2 4 cm 9 cm 6 cm 12 cm Help!!!

mars1129 [50]

Answer:

84 cm^2

Step-by-step explanation:

Area of triangle + area of rectangle

Area of triangle = 1/2*l*b

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3 years ago

2(x-2)+7>-1 and 5-4x>9​

2(x-2)+7>-1 and 5-4x>9