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3 years ago

Answer the equations: 1. 4x+16 2. 8 + 4x+8 3. x+8+x 4. 4+2x+4 5. x+1+2x+8

Mathematics

2 answers:

Aleks04 [339]3 years ago

5 0

So I checked this guys work seems pretty accurate

andrew-mc [135]3 years ago

3 0

Answer:

Answers below

Step-by-step explanation:

1) 4 (x+4)

2) 4x + 16

3) 2x+8

4) 2x+8

5) 3x+9

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Which point is a reflection of (12, −8) across the y-axis on a coordinate plane? A (8, 12) B (−8, 12) C (−12, −8) D (12, 8)

ladessa [460]

Answer:

option A

Step-by-step explanation:

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3 years ago

Determine if the following lines are parallel (never intersect), perpendicular (intersect at a 90 degree angle), intersecting (i

mihalych1998 [28]

Answer:

These lines are perpendicular.

Step-by-step explanation:

Put both equations in the slope intercept form of a line.

y = -6x - 8 This is already in the slope intercept form for a line

-x + 6y = 12 Add x to both sides of the equation

6y = x + 12 Divide through the whole equation by 6

y = 1/6x +2

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2 years ago

Twice the sum of a number and 3 is 20.

tamaranim1 [39]

Answer:

true

Step-by-step explanation:

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3 years ago

Read 2 more answers

spencer is on a mountain 11,224 feet above sea level. Heidi is on a submarine 3703 feet below sea level in a direct line below S

Alex

Since heidi is on a submarine 3703 below, we could say that she's -3703 and spencer is 11,224. 11224-(-3703)=14927

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3 years ago

It takes 4 hours and 15 minutes to fly from Orlando, Florida, to Boston, Massachusetts. The distance between the two cities is 1

3241004551 [841]

Answer:

262.12mph and 419kph

Step-by-step explanation:

Given: It takes 4 hours and 15 minutes to fly from Orlando, Florida, to Boston, Massachusetts. The distance between the two cities is 1114 miles

To Find: the average speend of the plane in miles per hour, If every mile is approximately 1.6 kilometers, the speed of the airplane in kilometers per hour

Solution:

Distance between Orlando,Florida and Boston, Massachusetts $=1114$ $\text{miles}$

Time taken to cover the distance $=4\text{hours}$ and $15\text{minutes}$

We know that,

$\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total time}}$

$=\frac{1114}{\frac{17}{4}}$

$=\frac{1114\times4}{17}$

$=262.12$ $\text{mph}$

It is given that,

$1\text{mile}=1.6\text{kilometer}$

therefore,

$1\text{mph}=1.6\text{kph}$

Speed Of plane in Kilometers per hours $=\text{speed in mph}\times1.6$

$419.4\text{kph}$

Speed of in miles per hour is $262.12$ $\text{mph}$ and Speed in kilometer per hour $419.4\text{kph}$

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4 years ago