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3 years ago

Solve the following system of equations. Express your answer as an ordered

Mathematics

1 answer:

exis [7]3 years ago

8 0

Answer:

I'm not going to give you an exact answer because there could be many different ones

Step-by-step explanation:

The equations can be rewritten as:

2x - 7 = 7y

-4x + 19 = 3y

then you just insert a value for x and get the answer.

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What is the value of this number in decimal form?<br> Five and three hundred eight thousandths.

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5.308 would be the correct answer

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Sherri’s trellis is shown.

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Step-by-step explanation:

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What is the answer to this problem

Umnica [9.8K]

Answer:

Step-by-step explanation:

ABC + CBD = ABD

3x+33 + 5x+13 = 70

Combine like terms

8x +46 = 70

Subtract 46 from each side

8x+46-46 = 70-46

8x = 24

Divide each side by 8

8x/8 = 24/8

x=3

We want to find ABC

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3 years ago

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Which equation represents an exponential function that passes through the point (2, 36)?

zimovet [89]

Y= aˣ . This is the exponential function:

If x = 2, then y = 36

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Then the equation becomes: y = 6ˣ

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3 years ago

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Two sides of a triangle have lengths 9 m and 13 m. The angle between them is increasing at a rate of 0.02radians /min. How fast

Olin [163]

Answer:0.175 m/s

Step-by-step explanation:

Given

Two sides of length 9 and 13 m

angle between them is increasing at an angle of 0.02 rad/min

rate of increasing of third at $\theta =\frac{\pi }{3}$

let a=9

b=13

c=unknown side

Now using cos rule of triangle

$cos\theta =\frac{a^2+b^2-c^2}{2ab}$

$cos\theta =\frac{a^2+b^2}{2ab}-\frac{c^2}{2ab}$

Differentiating both sides we get

$-\sin \theta \times \frac{\mathrm{d} \theta }{\mathrm{d} t}=0-2\frac{c}{2ab}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

at $\theta =\frac{\pi }{3}$

c=11.53 m

substituting values we get

$\frac{\sqrt{3}}{2}\times 0.02=\frac{11.53}{9\times 13}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

$\frac{\mathrm{d} c}{\mathrm{d} t}=0.175 m/s$

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3 years ago