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user100 [1]
3 years ago
7

Solve for s please help me besties!

Mathematics
1 answer:
quester [9]3 years ago
3 0
77 and 4s+9 are supplementary angles which means they add up to 180.

So if you set up equations you get:
77+4s+9=180

Add the like terms:

86+4s=180

Subtract 86 from both sides:

4s=94

Finally, divide 4 from both sides and you get:

23.5 for your final answer.
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One of the largest pumpkin ever grown weighed about 3/4 ton how many pounds did the pumpkin weigh
Dominik [7]
1 ton is 2000 pounds, so if we have 3/4 of a ton, we multiply 2000 pounds by 3/4.  This will end up getting you 1500 pounds.  Hope this helps!
7 0
3 years ago
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What is 2x^2+9x-18 in vertex form?
atroni [7]

Complete the square:

2<em>x</em>² + 9<em>x</em> - 18

2(<em>x</em>² + 9/2 <em>x</em>) - 18

2(<em>x</em>² + 9/2 <em>x</em> + 81/16 - 81/16) - 18

2(<em>x</em>² + 2 (9/4) <em>x</em> + (9/4)²) - 81/8 - 18

2(<em>x</em> + 9/4)² - 225/8

If you're not familiar with the method, the idea is to get a quadratic from the standard form

<em>ax</em>² + <em>bx</em> + <em>c</em>

into its vertex form

<em>a</em> (<em>x</em> - <em>h</em>)² + <em>k</em>

where (<em>h</em>, <em>k</em>) is the vertex of the parabola associated with the quadratic.

Expand the vertex form to get

<em>a</em> (<em>x</em>² - 2<em>xh</em> + <em>h</em>²) + <em>k</em>

<em>ax</em>² - 2<em>ahx</em> + <em>ah</em>² + <em>k</em>

For the two forms to be equivalent, we must have

-2<em>ah</em> = <em>b</em>

<em>ah</em>² + <em>k</em> = <em>c</em>

which means

<em>h</em> = -<em>b</em>/(2<em>a</em>)

<em>k</em> = <em>c</em> - <em>ah</em>² = <em>c</em> - <em>b</em>²/(4<em>a</em>)

In this case, <em>a</em> = 2, <em>b</em> = 9, and <em>c</em> = -18, so

<em>h</em> = -9/(2 • 2) = -9/4

<em>k</em> = 18 - 9²/(4 • 2) = -225/8

7 0
3 years ago
What would be an appropriate measure to describe the depth of a lake?
SCORPION-xisa [38]

i believe its feet ( ft )

7 0
4 years ago
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Please help me, to be submitted tomorrow. Pls help​
lianna [129]

Answer:

I got the answer 13

Step-by-step explanation:

To be short, I use the tangent ratio

7 0
3 years ago
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-1/6×(-9/7)<br><br>I need help with this question​
True [87]

3/14

When you multiply two negative numbers together, the negatives cancel each other out and you get a positive answer. So, you can just forget about the negative signs. This leaves us with 1/6 * 9/7.

To multiply a fraction, multiply the numerators together and multiply the denominators together. So, multiply 1 * 9 to get 9, and multiply 6 * 7 to get 42. This means the answer is 9/42.

However, the numerator and denominator share a factor, and that is 3. So, you can divide the numerator and the denominator each by 3 to simplify the fraction to 3/14.

4 0
3 years ago
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