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Vinil7 [7]
3 years ago
11

What is the value of x

Mathematics
2 answers:
Tasya [4]3 years ago
6 0
It's an <span>isosceles right triangle, x is the ipotenuse so

</span>√(7² + 7²) =
√(49 + 49) =
√98 = 9.89 (rounded 9.9)

<span>
</span>
sergey [27]3 years ago
4 0
X = 7 / sin(45)

x = 7 / sqrt(2)/2

x = 7 sqrt(2)
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A. Find a power function that models the data below.
zalisa [80]

Using Visual inspection, the model which fits the data in the distribution better is the power function.

The power and linear functions can of the data can both be modeled using technology,

<u>Using Technology</u> :

The power function in the form y = Ax^{B} which models the data is 1.926x^{1.662}

The linear function in the form y = Bx + A which models the data is y = 7.429x - 8.333

  • Where A = intercept and B = slope

  • From the model, correlation coefficient given by the power and linear models are 0.999 and 0.986 respectively.

  • Hence, the power model is a better fit for the data than the linear model.

Therefore, Inspecting the models visually, the power function fits the data better as the points on the curve are closer to the regression line than on the linear model.

Learn more :brainly.com/question/18405415

6 0
2 years ago
5. If position of object x = 3 sinΘ – 7 cosΘ then motion of object is bounded between position.​
lesya692 [45]

9514 1404 393

Answer:

  ±√58 ≈ ±7.616

Step-by-step explanation:

The linear combination of sine and cosine functions will have an amplitude that is the root of the sum of the squares of the individual amplitudes.

  |x| = √(3² +7²) = √58

The motion is bounded between positions ±√58.

_____

Here's a way to get to the relation used above.

The sine of the sum of angles is given by ...

  sin(θ+c) = sin(θ)cos(c) +cos(θ)sin(c)

If this is multiplied by some amplitude A, then we have ...

  A·sin(θ+c) = A·sin(θ)cos(c) +A·cos(θ)sin(c)

Comparing this to the given expression, we find ...

  A·cos(c) = 3   and   A·sin(c) = -7

We know that sin²+cos² = 1, so the sum of the squares of these values is ...

  (A·cos(c))² +(A·sin(c))² = A²(cos(c)² +sin(c)²) = A²(1) = A²

That is, A² = (3)² +(-7)² = 9+49 = 58. This tells us the position function can be written as ...

  x = A·sin(θ +c) . . . . for some angle c

  x = (√58)sin(θ +c)

This has the bounds ±√58.

3 0
2 years ago
Please help me im very depressed and im struggling a lot on my math and i really need some answers
expeople1 [14]

pls dont cheat on quiz: ask for extra practice from teacher and ask questions if you don't get material

4 0
2 years ago
Read 2 more answers
Help read the instructions ffirst
Nezavi [6.7K]

Answer:

Step-by-step explanation:

Find attached  the first sum.

x  denotes horizontal and y denotes vertical

When the value of x  is  positive, it moves to right side and when x is negative, it moves left sides 'x unit'

When the value of y  is  positive, it moves to up side and when y is negative, it moves down sides 'y unit'

7 0
2 years ago
Answer please I am begging !!!!
Jobisdone [24]

7,134 + d = 10,000

Subtract 7,134 from each side:

d = 10,000 - 7,134

d = 2,866

7 0
3 years ago
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