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amm1812
1 year ago
14

Learning Task 2. Which of the following represents a quadratic function? 1. f(x) = 8x + 5 2. f(x) = x2 - 2x + 7 х -5 4 3 -2 . 3.

-1 3 y=f(x) 3 0 -1 lo X 1 2 3 4 5 4. y=f(x) 0 1 2 3 4 PIVOT 4A CALABARZON
Mathematics
1 answer:
Aloiza [94]1 year ago
7 0

A quadratic function is a function which had the largest power of the equation 2.

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Two forces with magnitudes of 150 and 100 pounds act on an object at angles of 30° and 120°, respectively. Find the direction an
lyudmila [28]
<h2>Answer:</h2>

Magnitude=180.27 \ lbf \\ \\ Direction=63.69 \ degrees

<h2>Step-by-step explanation:</h2>

We have two forces as follows:

<u>First force:</u>

Magnitude: 150 pounds

Angle: 30°


<u>First force:</u>

Magnitude: 100 pounds

Angle: 120°


So the components can be found as follows:

F_{1x}=150cos(30)=129.90 \ lbf\\F_{1y}=150sin(30) = 75 \ lbf \\ \\ F_{2x}=100cos(120)=-50 \ lbf\\F_{2y}=100sin(120) = 86.60 \ lbf


So the components of the resultant force can be found by adding each component of the individual forces as follows:

R_{x}=\Sigma F_{x} \\ R_{y}=\Sigma F_{y} \\ \\ R_{x}=129.90-50=79.90 \ lbf \\ R_{y}=75+86.60=161.6 \ lbf


Finally, the magnitude and direction of the resultant force is:

Magnitude \rightarrow R=\sqrt{R_{x}^2+R_{y}^2}=\sqrt{79.90^2+161.6^2}=180.27 \ lbf \\ \\ Direction \rightarrow \theta=tan^{-1}(\frac{R_{y}}{R_{x}})=tan^{-1}(\frac{161.6}{79.90})=63.69 \ degrees

6 0
3 years ago
Read 2 more answers
Henry can write 5 1/4 of his novel in 3 hours. how many pages can he write in eight hours
PilotLPTM [1.2K]
Henry would be able to write 14 pages of a novel in 8 hours.
5 1/4(or 5.25)/3=1 3/4 (or 1.75) 
1 3/4 x 8 =14
Hope This Helps!
~Cupcake
5 0
4 years ago
*URGENT* I NEED HELP QUICK
masha68 [24]

I would say D

Hope I helped :)

7 0
3 years ago
What does scale factor mean?
mamaluj [8]
"A scale factor is a number which scales, or multiplies, some quantity. ... In the field of measurements, the scale factor of an instrument is sometimes referred to as sensitivity. The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor." (not my wording but i hope this helps)
4 0
4 years ago
What has a value of 35 when p=7 <br><br> A. 49/p <br> B. 5p<br> C. 45-p<br> D. 25+p
coldgirl [10]
Answer is <span>B. 5p




5x 7 = 35</span>
5 0
3 years ago
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