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3 years ago

Which choice is equivalent to the expression below? -25

Mathematics

2 answers:

Pavel [41]3 years ago

5 0

Answer:

Option A.

Step-by-step explanation:

The given expression is

$-25$

According to the reflexive property of equality, all values are equal to itself.

a = a

where, a be any real number.

Using the reflexive property we can say that

$-25=-25$

It means -25 is equal or equivalent to -25.

Therefore, the correct option is A.

Note: If the given expression is $\sqrt{-25}$ , then

$\sqrt{-25}=\sqrt{25}\sqrt{-1}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt {b}]$

$\sqrt{-25}=5i$ $[\because \sqrt{-1}=i]$

Then the correct option is B.

liq [111]3 years ago

4 0

Answer:5i

Step-by-step explanation:

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The amount of money Chaz earned for walking dogs is given in the table. Can the relationship be described by a constant rate? Ex

mojhsa [17]

Answer:

Yes, the relationship can be described by a constant rate of $18.75 per dog

Step-by-step explanation:

see the attached figure to better understand the problem

Let

x ----> the number of dogs

y ---> the amount of money earned

we have the points

$(6,112,50), (8,150), (11,206.25)$

step 1

Find the slope with the first and second point

$(6,112,50), (8,150)$

$m=(150-112.50)/(8-6)=18.75$

step 2

Find the slope with the first and third point

$(6,112,50), (11,206.25)$

$m=(206.25-112.50)/(11-6)=18.75$

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3 years ago

Use the grouping method to factor the polynomial below completely. x3 + 2x2 + 3x + 6

Phoenix [80]

Hello from MrBillDoesMath!

Answer:

(x+2) ( x^2 + 3)

Discussion:

x^3 + 2x^2 + 3x + 6 =

( x^3 + 2x^2) + (3x + 6) = => factor "x^2" from the first term; factor 3

from the second term

x^2( x + 2) + 3( x+2) = => factor (x+2) from each term

(x+2) ( x^2 + 3)

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3 years ago

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6. What is the value of x?

givi [52]

Answer:

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Step-by-step explanation:

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2 years ago

Find the value of x when m<2 = x + 64

polet [3.4K]

Answer:

-9

Step-by-step explanation:

The triangle has two sides that are the same, so it is an isosceles triangle. Therefore, the base angles are the same.

Angles of a triangle add up to 180°, so:

70 + (x + 64) + (x + 64) = 180

70 + 2x + 128 = 180

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x = -9

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3 years ago

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Mandarinka [93]

<h3>Volume of the cylinder:</h3>

$v = \pi {r}^{2} h$

$v = 3.14 \times {2}^{2} \times 3$

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$v = lwh$

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2 years ago

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Which choice is equivalent to the expression below? -25 ​

Which choice is equivalent to the expression below? -25