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3 years ago

What is 4 + (−6 3/4)? Write the answer as a mixed number in simplest form.

Mathematics

1 answer:

scoray [572]3 years ago

8 0

Answer:

Since 46 is a proper fraction, it cannot be written as a mixed number.

Step-by-step explanation: Mark me brain give 5 stars and a thank you

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A rectangle with an area of 12cm^2 has a length that is 4 times the width. What is the width? (Round your answer to the nearest

Katena32 [7]

12^2=144

144/4=36

$\sqrt{36}$ =6

the width is 6cm

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3 years ago

I need to know how to do question 24 part b

ANTONII [103]

Area of a circle : π * r²
4+1 = 5

π * 5² = 78.53
π * 4² = 50.27

78.53 - 50.27 = 28.26

The area of the border is 28.26 ft²

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3 years ago

Find ordered pairs: choose two of the answers below

Anarel [89]

Answer:

b -3,3 c 6,9 hope this helps

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3 years ago

In many cases the Law of Sines works perfectly well and returns the correct missing values in a non-right triangle. However, in

Agata [3.3K]

$\frac{\sin B}{b}=\frac{\sin A}{a} \\ \\ \sin B=\frac{b \sin A}{a} \\ \\ \sin B=\frac{13 \sin 29^{\circ}}{7.2} \\ \\ \boxed{m\angle B =\arcsin \left(\frac{65\sin 29^{\circ}{36} \right), 180^{\circ}-\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)}$

Considering the diagram. $\angle B$ is shown to be acute, so $\boxed{m\angle B=\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)}$ .

Angles in a triangle add to 180°, so $m\angle C= 151^{\circ}-\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)$ .

Using the law of cosines,

$AB=\sqrt{13^2 + 7.2^2-2(13)(7.2)\cos \left(\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right) \right)} \\ \\ \boxed{AB=\sqrt{220.84-187.2\cos \left(\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right) \right)}}$

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1 year ago

A cylinder of manganese (length 4.00 cm, diameter = 1.00 cm) has a mass of 22.62 g. What is the density of manganese?

Gnom [1K]

Equation for density is mass/volume

Mass=22.62 g

Volume= 22/7 x 1/2^2 x 4

3.14 x 0.5 x 0.5 x 4

=3.14 cm3

Mass/ Volume

22.62/3.14

7.2 g/cm3 is the answer

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3 years ago