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3 years ago

13

Help me on this math question

2 answers:

Maksim231197 [3]3 years ago

8 0

The answer is evaluate

Korolek [52]3 years ago

3 0

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

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Which of these could be the length of sides of right triangle ABC?

Anna007 [38]

Answer:

C

Step-by-step explanation:

5*5+12*12=13*13

25+144=169

169=169

Hope this helps you!

4 0

3 years ago

Is -55.505 a rational number?

earnstyle [38]

Answer:

yes

Step-by-step explanation:

Any number that can be written in p/q from is a rational number

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2 years ago

What is the sum of the first seven terms of the geometric series 2 - 10 +50 -...?

Umnica [9.8K]

Answer:

26042.

Step-by-step explanation:

What's the first term of this geometric series?

2.

What's the common ratio of this geometric series?

Divide one of the terms with the previous term. For example, divide the second term -10 with the first term 2.

$\displaystyle r = \frac{-10}{2} = -5$ .

What's the sum of this series to the seventh term?

The sum of the first n terms of a geometric series is:

$\displaystyle a_1 \cdot \frac{1-r^{n}}{1-r}$ ,

where

$a_1$ is the first term of the series,
$r$ is the common ratio of the series, and
$n$ is the number of terms in this series.

$\displaystyle 2 \times\frac{1- (-5)^{7}}{1- (-5)}=26,042$ .

3 0

3 years ago

Figure ABCD is a square. Prove BD ≅ AC. Statements Reasons 1. ABCD is a square 1. given 2. ∠DAB, ∠ABC, ∠BCD, and ∠CDA are right

FromTheMoon [43]

A. all sides are congruent. :)

4 0

2 years ago

Read 2 more answers

A triangle with three acute angles and no congruent sides

Sauron [17]

The answer should be an acute scalene triangle.

Hope this helped! ♡

8 0

3 years ago