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3 years ago

If a figure is a square, then it is a regular quadrilateral. is this true or false explain.

Mathematics

1 answer:

blsea [12.9K]3 years ago

6 0

This is true because a quadrilateral has only four items and a square has four items so it is quadrilateral.

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Simplfy the expression: (x - 9)^2

deff fn [24]

The answer would be x^2-18x+81. This can be found be writing "(x-9)^2" twice, and distributing. Combine like terms, and you should get this answer.

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3 years ago

Please help ASAP! i will mark brainliest

Kitty [74]

Use two pints on the graph to find the slope:

(0,0) and (5,1)

Slope = Change in Y over the change in x.

Slope = (1-0) / (5-0) = 1/5 = 0.20

The slope of the given equation is 0.25 which is greater than 0.20.

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3 years ago

Simplify the expression: –3(3 + 2n)

noname [10]

Answer:

-9 - 6n is the answer

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3 years ago

Read 2 more answers

12What mistake did the student make when solvingtheir two-step equation?(a)b) If correctly solved what should the value of be?

mixas84 [53]

Given the equation:

$\frac{x}{6}+3=-18$

(a) You can identify that the student applied the Subtraction Property of Equality by subtraction 3 from both sides of the equation:

$\frac{x}{6}+3-(3)=-18-(3)$

However, the student made a mistake when adding the numbers on the right side.

Since you have two numbers with the same sign on the right side of the equation, you must add them, not subtract them and use the same sign in the result. Then, the steps to add them are:

- Add their Absolute values (their values without the negative sign).

- Write the sum with the negative sign.

Then:

$\frac{x}{6}=-21$

(b) The correct procedure is:

1. Apply the Subtraction Property of Equality by subtracting 3 from both sides (as you did in the previous part):

$\begin{gathered} \frac{x}{6}+3-(3)=-18-(3) \\ \\ \frac{x}{6}=-21 \end{gathered}$

2. Apply the Multiplication Property of Equality by multiplying both sides of the equation by 6:

$\begin{gathered} (6)(\frac{x}{6})=(-21)(6) \\ \\ x=-126 \end{gathered}$

Hence, the answers are:

(a) The student made a mistake by adding the numbers -18 and -3:

$-18-3=-15\text{ (False)}$

(b) The value of "x" should be:

$x=-126$

4 0

1 year ago

Caroline has $25 to spend on the school field trip after paying $13.00 for the cost pf the field trip and $6.25 for lunch how mu

Alex787 [66]

Answer:

Caroline has $5.75 left

Step-by-step explanation:

$25 - Caroline's money

$13 - field trip

$6.25 - lunch

$25 - ($13 + $6.25)

$25 - $19.25

= $5.75

4 0

3 years ago