3 years ago

Which expression means the same as “a number minus 5”?

Mathematics

1 answer:

zzz [600]3 years ago

6 0

Answer:

It's the second option, a-5

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Please help me with this math problem.

Over [174]

The answer is 20

Hope this helps!

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2 years ago

Read 2 more answers

2. Simplify these expressions A) 2 the square root of 2 [3/the square root of 2 + the square root of 2] plzzz help anyone

Tpy6a [65]

Answer:

Step-by-step explanation:

$2\sqrt{2} (3/(\sqrt{2} +\sqrt{2} ))\\(2\sqrt{2} *3)/(2\sqrt{2} )\\3/1\\3$

for future problems use symbolab or wolframalpha

they give answers more accurately and quicker

4 0

3 years ago

If (x + 2) is a factor of x3 – 19x – p, find the value of p. Help please

Sergio039 [100]

If $x-a$ is a factor of a polynomial $P(x)$ then, $a$ is its root.

So $-2$ is a root of $x^3-19x-p$

$(-2)^3-19\cdot(-2)-p=0\\-8+38-p=0\\p=30$

3 0

3 years ago

Which represents the inverse of the function f(x)=2x+1?

Sonja [21]

f(x) = 2x + 1

To find the inverse, f^-1(x), of the function:

Put the function as an equation:

y = 2x + 1

Then move x to the left and y to the right;

x = 2y + 1

Then solve for y;

y = x/2 - 1/2

f^-1(x) = y

f^-1(x) = x/2 - 1/2

4 0

3 years ago

1].if the perimeter of a pentagon is 75 inches,find the length of one side using the given dimension=15 inches,10 inches,27 inch

balandron [24]

Answer:

Step-by-step explanation:

perimeter = sum of all sides

so 75- (15+10+27+9)

= 75- 61

= 14

3 0

3 years ago