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3 years ago

Can someone work this out

Mathematics

1 answer:

Musya8 [376]3 years ago

5 0

Answer: Not a function

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What are the numbers of symmetries for this figure?

mrs_skeptik [129]

Answer:

rotational symmetry: 2

reflectional symmetry: 0

Step-by-step explanation:

I took the test

8 0

3 years ago

A stack of 150 pieces of paper is 2.5 cm thick how many pieces of paper are in a pile 6.5 CM thick

umka21 [38]

Find the scale factor of the height:

6.5cm / 2.5cm = 2.6

Multiply the known pages by the scale factor:

150 x 2.6 = 390 pieces of paper.

5 0

3 years ago

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

A carton contains 20 shirts , of which q are made of pure cotton. After 4 more pure cotton shirts are added to the carton, the p

MaRussiya [10]

Answer:

listen when in doubt go with choice 3.

Step-by-step explanation:

7 0

4 years ago

How to solve 5-(49/1-5)x2+9-3

prisoha [69]

Final result : -77

Step by step solution :

Step 1 :

Simplify ——

Equation at the end of step 1 :

((5 - ((49 - 5) • 2)) + 9) - 3

Step 2 :

Final result :

-77

Hope this helps!

5 0

3 years ago

Read 2 more answers

Can someone work this out​

Can someone work this out