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3 years ago

What is 7/2 divided by 49/4?

Mathematics

1 answer:

ruslelena [56]3 years ago

4 0

Answer:

$\frac{2}{7}$

Step-by-step explanation:

$\frac{7}{2}$ ÷ $\frac{49}{4}$ needs to be flipped and multiplied.

It will become $\frac{7}{2}$ · $\frac{4}{49}$ .

Simplify the fractions by replacing 7 with 1 and 49 with 7, since 7 is 1/7 of 49. Then, turn the 2 into a 1 and the 4 into a 2, since 2 is half of 4.

You will be left with 1 · $\frac{2}{7}$ , which equals $\frac{2}{7}$

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Complementary angles mean all 3 angles equal how many degrees?

Montano1993 [528]

Answer:

Two Angles are Complementary when they add up to 90 degrees (a Right Angle)

Step-by-step explanation:

Please mark Brainliest :)

3 0

3 years ago

a 120 degree sector of a circle has an area of 67 square centimeters. to the nearest centimeter, what is the diameter of the cir

Vitek1552 [10]

Answer:

16 cm

Step-by-step explanation:

We have to first find the radius of the circle.

The area of a sector is given as:

$A = \frac{\alpha }{360} * \pi r^2$

where α = central angle of the sector = 120°

r = radius of the circle

Therefore:

$67 = \frac{120}{360} * \pi r^2\\\\\pi r^2 = \frac{360 * 67}{120}\\ \\r^2 = \frac{360 * 67}{120 * \pi}\\\\r^2 = 63.98\\\\r = \sqrt{63.98} = 8.0 cm$

The diameter of a circle is twice its radius, therefore:

D = 2 * 8 = 16 cm

The diameter of the circle is 16 cm

8 0

3 years ago

Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function?

seraphim [82]

Let f(x) be the real value function. Remember that:
→ Even: f(x) = f(-x) → Odd: -f(x) = f(-x)
If -f(x), then -f(x) = -x³ + 5x If x = -x, then f(-x) = -x³ + 5x
Since -f(x) = f(x), the function is therefore odd.

7 0

3 years ago

Read 2 more answers

What is the aswer ??????

avanturin [10]

Answer:

5 is correct answer

Step-by-step explanation:

I hope it helps you

6 0

3 years ago

Read 2 more answers

Please Help IMMEDIATELY

zmey [24]

Answer:

Let x equal the recurring decimal:

$\sf Equation\:1: \quad x=0.216216216...$

Create another number with recurring 216s by multiplying the above expression by 1000:

$\sf Equation\:2: \quad 1000x=216.216216...$

Subtract Equation 1 from Equation 2 to eliminate the recurring digits after the decimal:

$\sf \implies 1000x-x=216.216216...-0.216216...$

$\sf \implies 999x=216$

Divide both sides by 999:

$\sf \implies \dfrac{999x}{999}=\dfrac{216}{999}$

$\sf \implies x=\dfrac{216}{999}$

Simplify:

$\sf \implies x=\dfrac{216 \div 27}{999 \div 27}=\dfrac{8}{37}$

3 0

2 years ago

Read 2 more answers