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3 years ago

WILL GIVE BRAINLIEST

Mathematics

2 answers:

Allushta [10]3 years ago

8 0

Answer:

Step-by-step explanation:

(-2)(1)(3)(-1) - (1)(3)(-1)(-2)

6 - 6 = 0

Stels [109]3 years ago

8 0

Answer:

Step-by-step explanation:

(-2)(1)(3)(-1) - (1)(3)(-1)(-2)

6 - 6 = 0

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True or False: A justification is a statement of the reason for each step in a proof.

Leokris [45]

Answer:

Step-by-step explanation:

False.

5 0

4 years ago

HELP ME PLEASE . IM BEGGING!!

Dimas [21]

1/7 is the answer lol, just count the reds and then count the total

5 0

3 years ago

Find the value of x. Round your answer to the nearest tenth.

natka813 [3]

That's a question about the Pythagorean Theorem.

We use the Pythagorean Theorem to find the value of one side in a right triangle.

This theorem says that:

$\boxed{a^2 = b^2 + c^2}$

a is the hypotenuse (It's the opposite side the right angle).
b and c are cathetus (They're the adjacent sides the right angle).

Okay, now, let's go to solve this problem! In our figure, we have two cathetus. Their values are 10 and 7 and we have to find the value of x (the hypotenuse). Let's change this information in that formula.

$a^2 = b^2 + c^2\\x^2 = 10^2 + 7^2\\x^2 = 100 + 49\\x^2 = 149\\x = \sqrt{149}$

Therefore, the value of x is $\sqrt{149}$ .

I hope I've helped. :D

Enjoy your studies! \o/

5 0

3 years ago

Which equation could be used to calculate the sum of the geometric series? one-third two-ninths startfraction 4 over 27 endfract

Andrew [12]

The equation could be used to calculate the sum of the geometric series is $S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }$

<h3>Sum of geometric sequence</h3>

Geometric sequence are sequence that increase expoentially. The formula for calculating the sum of an exponential sequence is expressed as:

$S_n=\frac{a(1-r^n)}{1-r}$

where

a is the first term
n is the number of terms
r is the common ratio

From the given sequence

a= 1/3

r = 2/9 * 3 = 2/3

Substitute into the formula

$S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }$

Hence the equation could be used to calculate the sum of the geometric series is $S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }$

Learn more on geometric series here; brainly.com/question/24643676

3 0

2 years ago

Which expression is eqivalent to square root of 80

Ymorist [56]

Answer:

4 multiplied by sq rt of 5

Step-by-step explanation:

5 0

4 years ago