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jek_recluse [69]
3 years ago
7

2+2 can u plz help me

Mathematics
2 answers:
3241004551 [841]3 years ago
5 0

Answer:

the answer is 4

Step-by-step explanation:

Elza [17]3 years ago
4 0

Answer: 4

Step-by-step explanation:

(1 + 1) + (1 + 1)

2 + 2 = 4

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What is the image of the point (4,7) after a reflection about the line y = 4.?
lord [1]

Answer:

(4, 1)

Step-by-step explanation:

See attachment courtesy of Desmos.

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3 years ago
Solve this problem please :)
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The Answer is B 8/3 :)
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3 years ago
If a 24-kg mass stretches a spring 15 cm, what mass will stretch the spring 10 cm
natulia [17]

Answer:

<h2>16kg</h2>

Step-by-step explanation:

 This problem is borers on elasticity of materials.

according to Hooke's law,<em> "provided the elastic limit of an elastic material is not exceeded the the extension e is directly proportional to the applied force."</em>

F= ke

where F is the applied force in N

          k is the spring constant N/m

          e is the extension in meters

Given data

mass m= 24kg

extensnion=15cm in meters= \frac{15}{100}= 0.15m

we can solve for the spring constant k

we also know that the force F = mg

assuming g=9.81m/s^{2}

therefore

24*9.81=k*0.15\\235.44=k*0.15\\k=\frac{235.44}{0.15} \\k=1569.6N/m\\

We can use this value of k to solve for the mass that will cause an extension of  10cm= 0.1m

x*9.81=1569.6*0.1\\\\x= \frac{156.96}{9.81} \\\x= 16kg

5 0
3 years ago
You are standing at point C, 45 feet from the Point State Park fountain in Pittsburgh, PA. The distance from you to a point of t
bearhunter [10]

The tangent line DC is perpendicular to the radius of the park

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<h3>How to determine the distance AC?</h3>

To calculate the distance AC, we start by calculating the length of AB using:

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So, we have:

105^2 = (45 + AB) * 45

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11025 = (45 + AB) * 45

Divide both sides by 45

245 = 45 + AB

Rewrite as:

AB + 45 = 245

From the figure, we have:

AC = AB + 45

Substitute AB + 45 = 245

AC = 245

Hence, the length of AC is 245 feet

Read more about line of tangents at:

brainly.com/question/6617153

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xxMikexx [17]
The answer to the question

4 0
3 years ago
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