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3 years ago

Evaluate the expression, if x=12, y=8, and z=3...... X+y2 + z2

Mathematics

2 answers:

Keith_Richards [23]3 years ago

7 0

85 is the answer because when u plug in the numbers u get 12+8^2+3^2 3*3=9 8*8=64 9+64+12=85

elena-14-01-66 [18.8K]3 years ago

6 0

34= 12+(8)2+(3)2
youre basically just plugging in the numbers to the letter they correspond

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A plane is approaching an aircraft carrier at 25° angle of elevation from 3.2 miles away how far above sea level is the plane

s2008m [1.1K]

Answer:

$Height\approx 1.35\ miles$

Step-by-step explanation:

The angle of elevation $=25\textdegree$

It is $3.2\ miles$ away from the point.

If we imagine a right triangle having an angle $25\textdegree$ .

Hypotenuse $=3.2$ , Opposite=Height from sea level $(h)$

$\sin 25=\frac{opposite}{hypotenuse}\\\\\sin 25=\frac{h}{3.2}\\\\h=3.2\times \sin 25\\\\h=3.2\times 0.4226\\\\h=1.3524\approx 1.35\ miles$

8 0

3 years ago

Read 2 more answers

12 is what percent of 19

VikaD [51]

Answer:

63%

Step-by-step explanation:

12/19=0.63157895

0.63157895*100=63.1578947

7 0

3 years ago

A birthday cake was cut into equal pieces, and four pieces were eaten. The fraction is 3/7 how many are left

GaryK [48]

3 are left.
3/7 means there were 7 slices, but it's missing 4 slices. (Eaten)

i hope this helps :)

7 0

3 years ago

I need help please?!!!

yanalaym [24]

Answer is: C

√11 ≈ 3.3661
Which the closest to your answers is 3.3

5 0

3 years ago

NEED ANSWER ASAP PLEASE WILL GIVE BRAINLIEST An integer n is divided by 2 and the quotient is an even integer. What does this te

Nesterboy [21]

Answer:

$n$ is a multiple of 4

Step-by-step explanation:

Let's think about this.

Even numbers are basically numbers that, when divided by 2, get us an integer.

This means that $n$ must be an even integer.

<em>However,</em>

Every other even number, when divided by 2, gets you an odd integer.

This means that every second even number, $n \div 2$ gets us an even number.

This also means that every time $n \div 2$ is an even number, n will be a multiple of 4 (as $2\cdot 2 = 4$ ).

Test this out with any even number that's a multiple of 4 (all multiples of 4 are even numbers)

Hope this helped!

4 0

3 years ago