3 years ago

Which expression correctly represents “twice the sum of four and a number”?

Mathematics

2 answers:

iVinArrow [24]3 years ago

5 0

Answer:

It is A

Step-by-step explanation:

labwork [276]3 years ago

4 0

2(4+n) because the sum of 4 and a number is 4+n so twice that is 2(4+n)

You might be interested in

What will the horizontal cross of a cone be

erma4kov [3.2K]

Answer:

Step-by-step explanation:

A horizontal cross section of a cone will be circle

5 0

2 years ago

9.1% of 140 is what number

igomit [66]

12.74 is the answer to the question

6 0

3 years ago

Read 2 more answers

2x + 11 + 6x<br> Combing like terms

Nataly [62]

Answer:8x+11

Step-by-step explanation:2 x+ 6x=8x +11

add 2x to 6x and add 11 to it .

8 0

3 years ago

Read 2 more answers

In one week, the 9th grade class recycled 9 2/3 pounds of glass and 12 3/4 pounds of newspaper. How many more pounds of newspape

mariarad [96]

15 4/5 because we are adding

7 0

3 years ago

What are the ratios of sine, cosine, and tangent for angle Y? sin(Y) = StartFraction X Z Over X Y EndFraction; cos(Y) = StartFra

Sholpan [36]

Answer:

$\sin Y= \frac{XZ}{XY}$

$\cos Y= \frac{YZ}{XY}$

$\tan Y= \frac{XZ}{YZ}$

Step-by-step explanation:

Given

See attachment for triangle

Required

Find $\sin, \cos$ and $\tan$ of angle Y

For angle Y:

$Opposite = XZ$

$Adjacent = YZ$

$Hypotenuse = XY$

The $\sin$ of an angle is calculated as:

$\sin\theta = \frac{Opposite}{Hypotenuse}$

So:

$\sin Y= \frac{XZ}{XY}$

The $\cos$ of an angle is calculated as:

$\cos\theta = \frac{Adjacent}{Hypotenuse}$

So:

$\cos Y= \frac{YZ}{XY}$

The $\tan$ of an angle is calculated as:

$\tan\theta = \frac{Opposite}{Adjacent}$

So:

$\tan Y= \frac{XZ}{YZ}$

7 0

2 years ago

Read 2 more answers