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2 years ago

Describe the graph of the equation x = 7. Is the equation a function?

Mathematics

2 answers:

frez [133]2 years ago

8 0

I’d be answer A. Because it is a vertical line

DerKrebs [107]2 years ago

3 0

Answer:

no it is not, A

Step-by-step explanation:

functions are things which u can draw vertical lines through and it never intersects(one x value leads to exactly one y value) at more than one point so A because x=7 is infinite y values for one x value.

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SIMPLIFY USING THE DISTRIBUTIVE PROPERTY OF RATIONAL NUMBERS 1/5+ (2/5+3/5)

Lemur [1.5K]

Answer:

6/5

Step-by-step explanation:

1/5 + (2/5 + 3/5)

solve for the bracket first

1/5 +(2+3/5)

1/5 + (5/5)

1/5 + 1

1+1*5/5

6/5

another method

1/5 + (2/5 +3/5)

open brackets)

1/5 + 2/5 + 3/5

since their denominator are same u can add their numerator

1+2+3/5

6/5

4 0

2 years ago

Three tanks are capable of holding 361,841, and 901 of the greatest vessel winch can be used to fill each one of them on exact n

daser333 [38]

Answer:

Tank which is capable of holding 1 can fill each one of the tanks an exact number of time.

Step-by-step explanation:

Three tanks are capable of holding $361,841,901$

To find which tank can be used to fill each one of them an exact number of time, find $HCF(361,841,901)$

$361=19^2\\841=29^2\\901=17(53)$

Therefore,

$HCF(361,841,901)=1$

So, tank which is capable of holding 1 can fill each one of the tanks an exact number of time.

6 0

2 years ago

PLEASE HELP!! what is the surface area of a cylinder with a radius of 7 and a height of 32? Note: Answer must not be fraction or

Anton [14]

Area = 2pi*r*h + 2pi*r^2
Area = 2pi*r(h + r)

radius of 7 in and a height of 32 in

Area = 14pi*39 = 546pi in^2

8 0

3 years ago

What is the value of k such that 5x-2y=9 and 6x+ky=4 are perpendicular?

max2010maxim [7]

5x-2y=9......(1)

6x+ky=4......(2)

slope of eqn i= -5/-2

=5/2

slope of eqn ii = -6/k

since the line are perpendicular

5/2 * -6/k = -1

-30= -2k

k=15

8 0

1 year ago

Joshua finds the perimeter of the following composite figure composed of a square and right triangle so that a braid may be cut

Bumek [7]

The perimeter of a shape is the sum of its side lengths.

Joshua miscalculated the third length of the triangle

First, we calculate the third length (x) of the triangle.

Because the triangle is right-angled, we can make use of Pythagoras.

So we have:

$x^2 = 7^2 + 7^2$

$x^2 = 2(7^2)$

Take square roots of both sides

$x = \sqrt{2(7^2)$

$x = 7\sqrt{2$

The other shape in the figure is a square.

So, the perimeter (P) is

$P = 7 + x + x + x + 7$ ---- i.e. the sum of the visible lengths

So, we have:

$P = 7 + 7\sqrt2 + 7\sqrt2 + 7\sqrt2+ 7$

Evaluate like terms:

$P = 14 + 21\sqrt2$

Hence, Joshua's error is that:

He miscalculated the third length of the triangle