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3 years ago

Please answer this for me

Mathematics

1 answer:

Bumek [7]3 years ago

7 0

Answer:

422.39 sq cm

Step-by-step explanation:

Find the area of the circle and subtract the area of the rectangle from it.

Circle area: pi*12^2, 144pi sq cm

REctangle area: 10*3=30sq cm

144pi-30≈422.39

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Use point-slope form to write the equation of the line in slope-intercept form that passes through the points (0, -5) and (-3, 4

Anna007 [38]

The point slope form of this line is y+5=m(x). Now, you need to find m (the slope) of the line using the formula (y1-y2)/(x1-x2):

(-5-4)/(0--3)

-9/3

-3

The complete point slope formula is: y+5=-3x.

Now, to fin the slope intercept form, just solve for y:

y+5=-3x

<em>*Subtract 5 from both sides*</em>

y=-3x-5

Hope this helps!!

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4 years ago

Read 2 more answers

Step by step how to solve 3y + 5.2 = 2 - 5y

Crank

3y + 5.2 = 2 - 5y
3y + 5y + 5.2 = 2
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y = (-3.2) / 8
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3 years ago

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Combine like terms to simplify the expression:<br> 1.17-0.07a+(-3.92a)

Pachacha [2.7K]

After combining like terms and simplifying $1.17-0.07a+(-3.92a)$ we get $1.17-3.99a$

Step-by-step explanation:

We need to combine like terms to simplify the expression:

$1.17-0.07a+(-3.92a)$

Like terms: The terms are like when they have same variable and same exponent.

Solving:

$1.17-0.07a+(-3.92a)\\=1.17-0.07a-3.92a\\=1.17+(-0.07a-3.92a)\\=1.17+(-3.99a)\\=1.17-3.99a$

So, After combining like terms and simplifying $1.17-0.07a+(-3.92a)$ we get $1.17-3.99a$

Keywords: Solving Expressions

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4 years ago

Numbers expressed using exponents are called ?

Crazy boy [7]

They are called powers

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3 years ago

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The answer is b because all you have to do is just subtract if I am wrong so sorry

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3 years ago