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2 years ago

Question is in the picture

Mathematics

1 answer:

irakobra [83]2 years ago

4 0

Answer:

49.4 (rounded to the nearest tenth)

Step-by-step explanation:

You need to use the Pythagorean theorem -> $a^{2} + b^{2} = c^{2}$ -> $c^{2}$ is the hypotenuse

$a^{2} + b^{2} = c^{2}$

$(7x + 7)^{2}$ + $5x$ = $c^{2}$

(7x $7)^{2}$ + (5x7) = $c^{2}$

$49^{2}$ + 35 = $c^{2}$

2436 = $c^{2}$

$\sqrt{2436}$ = c

c = 49.355850717

c = 49.4 (round to the nearest tenth)

hope this helps, sorry if it is not right

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Answer:

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Step-by-step explanation:

Both bicycles and tricycles have 1 set of handlebars. Bicycles have 2 wheels while tricycles have 3.

Using this information, set up a system of equations, where b is the number of bicycles and t is the number of tricycles:

b + t = 37

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Solve by elimination by multiplying the top equation by -2:

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Then, plug in 21 as t into one of the equations:

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3 years ago

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3 years ago

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melisa1 [442]

Answer:

Vertex form: $f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

The vertex is $(-\frac{7}{2},-\frac{53}{4})$

Step-by-step explanation:

For a general quadratic function the form is:

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Take the value of b and divide it by 2. Then, the result obtained squares it.

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Add and subtract $\frac{49}{4}$

$f(x) = (x ^ 2 +7x +\frac{49}{4}) -\frac{49}{4}- 1$

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$f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

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..............................

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2 years ago

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Step-by-step explanation:

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Keywords: Polynomials, Multiplication

Learn more about polynomials at:

#LearnwithBrainly

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