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Mnenie [13.5K]
3 years ago
12

Which is the best estimate of x based on rounding the constants and coefficients in the equation to the nearest integer 6.15 (x

- 8,86) = 21.83
Mathematics
1 answer:
artcher [175]3 years ago
7 0
Your answer would be x = 12.41 

6.15 (x - 8.86) = 21.83
      *6.15 * 6.15

6.15x - 54.49 = 21.83
         + 54.49  + 54.49

6.15x = 76.32
/6.15    /6.15

x = 12.41
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Nothing else is given, so for the two triangles to be congruent, the only possible proof is the ASA theorem.
first pairs of angles: 2x+7=x+21 => x=14
second pairs of angles: 8y-4=4y+28 =>y=8
The two triangles share the same side PR
Based on the Angle-Side-Angle Triangle Congruence theorem, these two triangles are congruent with x=14, y=8
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4 0
3 years ago
I don’t quite understand this problem could someone help me please
ale4655 [162]

Answer:

\frac{7\sqrt{65}}{65}

Step-by-step explanation:

Cosine is the ratio of the side adjacent to the angle and the right triangle hypotenuse.

cos B = \frac{7}{\sqrt{65}} = \frac{7\sqrt{65}}{65}

3 0
2 years ago
Tara wants to attend a four-year college to become a math teacher. Which statements explain the possible differences in total ye
Naddika [18.5K]
Answer:

- A public in-state college charges less for in-state tuition than for out-of-state tuition.
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Explanation:
If Tara wants to study out of state she could face higher tuition costs; public universities generally favor their residents with lower tuition costs, contrary to the charge for students who comes from other states.
Also, if she wants to study outside the state, Tara would have to analyze the costs of a residence and food that she will have to cover if she studies outside the state. On the contrary, if she studies in the state she could live with her family and only cover the transportation costs.

hope this helps!

7 0
3 years ago
Read 2 more answers
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torisob [31]
AD = BC ----> Parallel lines
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6 0
3 years ago
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Suppose y = 2x + 1 , where x and y are functions of t. (a) if dx/dt = 6, find dy/dt when x = 4. dy dt = (b) if dy/dt = 2, find d
evablogger [386]

y=2x+1\\\\\dfrac{dy}{dt}=2\dfrac{dx}{dt}

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(b) For dy/dt=2, 2 = 2·dx/dt ⇒ dx/dt = 1

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The value of x is irrelevant for this question.

=====

If your function is 2^x +1 or 2^(x +1), it needs to be written as such. The answer above applies to the function given.

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3 years ago
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