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3 years ago

HELP!!!! Solve for y in the following equation: -4y + 9 = -28

Mathematics

2 answers:

Flura [38]3 years ago

7 0

Answer:

y = 37/4

Step-by-step explanation:

egoroff_w [7]3 years ago

3 0

Answer:

Your answer is y = 37/4 or 9.25 or 9/1/4

Step-by-step explanation:

Right away we can just solve for y, so we minus 9 to both sides of the equation:

-4y = -37

Then we divide -4 from both sides:

y = 37/4 or 9.25 or 9/1/4

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What is the area of this polygon

iragen [17]

Answer:

The area of any regular polygon is given by the formula: Area = (a x p)/2, where a is the length of the apothem and p is the perimeter of the polygon. Plug the values of a and p in the formula and get the area.

Step-by-step explanation:

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3 years ago

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Y= |x−3| + |x+2| − |x−5|, if x>5<br> I need to know what y equals.

olganol [36]

Answer:

$y \ge9$

Step-by-step explanation:

The given function is

$y = |x - 3| + |x + 2| - |x - 5|$

By the triangle inequality property,

$|x + y| \leqslant |x| + |y|$

and the alternate triangle inequality property;

$|x - y| \geqslant |x| - |y|$

We apply this property to get:

$y \geqslant |x | - |3| + |x | + |2| -( |x | - |5| )$

Expand parenthesis to get:

$y \geqslant |x | - |3| + |x | + |2| - |x | + |5|$

Simplify to get:

$y \geqslant |x | - 3+ |x | + 2- |x | + 5$

Group similar terms to get:

$y \geqslant |x | + |x | - |x | - 3 + 2+ 5$

$y \geqslant |x | + 4$

When x>5,

$y \geqslant |5 | + 4$

That's;

$y \geqslant 5 + 4 \\ y \geqslant 9$

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3 years ago

Evaluate 6(b - 3) + c; for b = 5 and c = 8

bulgar [2K]

Answer:

Step-by-step explanation:

given:

b=5

c=8

6(b-3)+ c

6(5-3)+8

6(2)+8

12+8

other method

6(b-3)+c

6b-18+8

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12+8

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Gennadij [26K]

$7 \frac{1}{5}$
equivalent to

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loris [4]

Answer:

B yes

Step-by-step explanation:

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2 years ago