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3 years ago

The period of y= -3cos x/8 is

Mathematics

1 answer:

Marysya12 [62]3 years ago

5 0

Y=7.8com %75 679000 then multiple them wait don't think got it right

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Write an expression equivalent to -4(x+3)-12x+5 that only has two terms

olasank [31]

Answer:

-16x-7

Step-by-step explanation:

you distribute the -4, then combine like terms, that is about it, here is a picture of everything i did

5 0

3 years ago

Please help me

Stels [109]

Answer:

Step-by-step explanation:

Rational number between 2 and 3 = $\frac{2+3}{2}=\frac{5}{2}$

$2 < \frac{5}{2} < 3$

Now, find the rational number between 2 and 5/2

Rational number between 2 and 5/2 = $\frac{1}{2}(2 + \frac{5}{2})=\frac{1}{2}*(\frac{2*2}{1*2}+\frac{5}{2})=\frac{1}{2}(\frac{4}{2}+\frac{5}{2})=\frac{1}{2}*\frac{9}{2}=\frac{9}{4}$

$2 < \frac{9}{4} < \frac{5}{2} < 3$

Rational number between 5/2 and 3 is

$= \frac{1}{2}(\frac{5}{2}+3)=\frac{1}{2}(\frac{5}{2}+\frac{3*2}{1*2})=\frac{1}{2}*(\frac{5}{2}+\frac{6}{2})=\frac{1}{2}*\frac{11}{2}=\frac{11}{4}$

Rational numbers between 2 and 3 are

9/4 , 5/2 , 11/4

4 0

3 years ago

Sound travels through substances as energy is transferred from one particle to the next. The diagrams represent the particles of

tatyana61 [14]

Answer:

Sound requires a material medium to travel , the sound through each medium through its molecules and particles present in it .Sound travels with some speed and it's speed depends upon the nature of the medium through which it travels i.e. upon density and transparently. Speed of increases with the increase in density and decreases with the increases in temperature . Speed if sound us maximum for solid then for liquid and minimum in gases because of it's large intermolecular spaces and low density.

3 0

2 years ago

Given a container that is 4.50 ft. by 7.20 ft. that is filled with water 5.00 inches deep.What is the volume of water in liters

elena55 [62]

Answer:

382.3 liters

Step-by-step explanation:

We are told in the question that:

A container that is 4.50 ft. by 7.20 ft. that is filled with water 5.00 inches deep.

This means:

Length = 4.50 ft

Width = 7.20 ft

Depth(Height) = 5.00 inches

We have to convert all of these to centimeters first. Then to liters

1 foot = 30.48 centimetres

1 inch = 2.54 centimetres

Length = 4.50 ft

1 foot = 30.48 centimetres

4.5 ft = 4.5 × 30.48

= 137.16 cm

Width = 7.20 ft

1 foot = 30.48 centimetres

7.20 ft = 7.20 × 30.48 cm

= 219.456cm

Depth(Height) = 5.00 inches

1 inch = 2.54 centimetres

5 inches = x cm

Cross Multiply

= 5 × 2.54 cm

= 12.7 cm

The volume of the water(cm³) = Length × Width × Depth

= (137.16 × 219.456 × 12.7)cm³

382277.428992 cm³

The volume of water in liters

1 cubic centimetre = 0.001 litre

382277.428992 cm³ = x

Cross Multiply

382277.428992 cm³ × 0.001 litre

= 382.2774289920001 liters

Approximately = 382.3 liters

7 0

3 years ago

Identify the congruent angles in the figure. Explain your reasoning.

cupoosta [38]

Answer:

Step-by-step explanation:

<CBD is congruent to <ABE by Vertical Angles

<ABC is congruent to <DBE by Vertical Angles

6 0

3 years ago