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3 years ago

Is this relation a function? Justify your answer.

Mathematics

1 answer:

Maslowich3 years ago

8 0

Answer:

Step-by-step explanation:

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2p-7 make p the subject

n200080 [17]

Answer:

making letters subject is only possible

with equations but not expression.

So the question has no solution.

4 0

3 years ago

the home teams score exceeded 2 times the visiting teams score by 5 if the visiting teams score is x which expression represents

yaroslaw [1]

Answer:

X x 2= 5

Step-by-step explanation:

6 0

3 years ago

If a right triangle has a hypotenuse equal to 17 and a leg equal to 15, find the third side.

Yanka [14]

Use the pythagorean theorem a.k.a ${a}^{2} + {b}^{2} = {c}^{2}$
c is the hypotenuse while a & b are the legs
${15}^{2} + {b}^{2} = {17}^{2}$
$225 + {b}^{2} = 289$
subtract 225 from 289
${b}^{2} = 64$
square root both b and 64
the other leg is equal to 8

8 0

2 years ago

Find a vector equation and parametric equations for the line through the point (1,0,6) and perpendicular to the plane x+3y+z=5.

tester [92]

The normal vector to the plane x + 3y + z = 5 is n = (1, 3, 1). The line we want is parallel to this normal vector.

Scale this normal vector by any real number t to get the equation of the line through the point (1, 3, 1) and the origin, then translate it by the vector (1, 0, 6) to get the equation of the line we want:

(1, 0, 6) + (1, 3, 1)t = (1 + t, 3t, 6 + t)

This is the vector equation; getting the parametric form is just a matter of delineating

x(t) = 1 + t

y(t) = 3t

z(t) = 6 + t

5 0

2 years ago

So confused some one help

SOVA2 [1]

Answer:

-2 (filled in circle) to 7 (open circle)

Step-by-step explanation:

for the first equation x must be the equal to or smaller than 6. so -3(-2) equals 6 but anything less than -2, let's say -3(-3), will be BIGGER than six, so -2 including -2 which is a filled in circle.

solving it:

-3(x) $\leq$ 6

$\frac{-3x}{-3} \leq \frac{6}{-3}$

$x\leq -2$

for the second equation x must be smaller than 17. so first you take out + 3 by subtracting it, leaving the equation as 2x<14. 2(7)<14 is NOT true so anything bigger than 7 leaves it as true because 6.98934747483 can still make it true, so anything smaller than 7 which is 7 with a not filled in, or open, circle

solving it:

$2x + 3 (- 3) < 17 (- 3)$

2x < 14

$\frac{2x}{2}$

x < 7

my explanation is all over the place, but hope this helps!!!

4 0

2 years ago