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4 years ago

Easy 6th grade math! Please help!

Mathematics

1 answer:

Pie4 years ago

3 0

Answer:

Step-by-step explanation 10 + 2.50d = 850

David starts with $10 and each day he earns $2.50. The d represents a variable and can be any number.

To find d you must solve the equation.

10 + 2.50d = 850

2.50d = 840 (subtract 10 from 850)

d = 336 (divide 840 by 2.50)

It will take David 336 days to save $850.

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A sinusoidal function whose frequency is 1/6pi

Lyrx [107]

Answer:

B. $f(x)=9\sin (\frac{x}{3})+3$

Step-by-step explanation:

We are given that,

The frequency of the function is $\frac{1}{6\pi}$

The maximum and minimum value is 12 and -6.

Also, the y-intercept is 3.

From the options, we have,

Options C and D have minimum value 6. So, they does not represent the given function.

We know, 'If a function has a period P, then the function $a+f(bx+c)$ will have the period $\frac{P}{|b|}$ .

Also, 'The frequency is the reciprocal of the period'.

So, function $a+f(bx+c)$ will have the frequency $\frac{|b|}{P}$ .

From the options, we see,

Option B have the frequency, $\frac{\frac{1}{3}}{2\pi}$ i.e. $\frac{1}{6\pi}$ .

Option A have the frequency, $\frac{6\pi}{2\pi}$ i.e. 3

Thus, option A is not correct.

Hence, option B is the required sinusoidal function.

8 0

4 years ago

Read 2 more answers

I don't understand plz help

Rasek [7]

Answer:

The equation that represent x, the height of the sign is;

$2a = 3x$

Step-by-step explanation:

Given that the area of the triangular yield is A square feet

and it has a base length of 3 feet.

also the height is represented by x;

$b = 3ft \\ h = x$

Recall that the area of a triangle can be written as;

$a = \frac{1}{2} bh$

substituting the given;

$a = \frac{1}{2} \times 3 \times x \\ a = \frac{3}{2} x \\ 2a = 3x$

Therefore, the equation that represent x, the height of the sign is;

$2a = 3x$

8 0

3 years ago

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Find the unknown sizes of angles in the following <br>a°<br>2a°<br>(a+10)°

Ivenika [448]

Answer:

Step-by-step explanation:

a+2a+a+10=180

4a=180-10

4a=170

a=42.4°

2a=42.5*2=85°

a+10=42.5+10=52.5°

5 0

3 years ago

A computer is 40% off if the original price. After the discount the tax is $44.64. What was the original price

amm1812

The original price was $62.50

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3 years ago

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Determine the range of the function graphed below.<br> Answer choices are below as well

Softa [21]

Answer:

The range of the function will be (- ∞, 4].

Step-by-step explanation:

See the graph attached.

Here we have to get the range of the graphed function.

The value of y in the graphed function varies in the range of less than or equal to 4.

Because the graph of the function does not move beyond 4 towards +∞.

Therefore, the range of the function will be (- ∞, 4]. (Answer)

5 0

3 years ago