All categories

2 years ago

a stadium with 80 rows has 20 seats in the first rows,30 in the second,and so on.how many total seats are in the stadium

Mathematics

1 answer:

joja [24]2 years ago

5 0

Answer: there are 2,000 seats in total

You might be interested in

Help plssss plssss !!1

Alecsey [184]

Answer:

were u looking for some like this, its for the first question

Step-by-step explanation:

8 0

1 year ago

Read 2 more answers

What is the value of x

pochemuha

This is the isosceles triangle. Therefore, the angles at the base are congruent.

We know that the sum of the measures of the angles in a triangle is 180°.

Therefore we have the equation:

$38^o+x^o+x^o=180^o$

$38^o+2x^o=180^o$ <em>subtract 38 from both sides</em>

$2x^o=142^o$ <em>divide both sides by 2</em>

$x^2=71^o$

<h3>Answer: x = 71.</h3>

5 0

2 years ago

Is 0.9727 a positive correlation, negative correlation, or no correlation?

lapo4ka [179]

I think it’s positive correlation

4 0

2 years ago

Law of radicals

andrey2020 [161]

Answer:

1) $\sqrt{x^7}=x^{\frac{7}{2}$

2) $\sqrt[3]{y^5}=y^{\frac{5}{3}$

3) $\sqrt[5]{a^{12}}=a^{\frac{12}{5} }$

4) $\sqrt[4]{z^{9}}=z^\frac{9}{4}$

Step-by-step explanation:

1) $\sqrt{x^7}$

We know that $\sqrt{x}=x^{\frac{1}{2}$

So, $\sqrt{x^7}=x^{\frac{7}{2}$

2) $\sqrt[3]{y^5}$

We know that $\sqrt[3]{x}=x^{\frac{1}{3}$

So, $\sqrt[3]{y^5}=y^{\frac{5}{3}$

3) $\sqrt[5]{a^{12}}$

We know that $\sqrt[5]{x}=x^{\frac{1}{5}$

So, $\sqrt[5]{a^{12}}=a^{\frac{12}{5} }$

4) $\sqrt[4]{z^{9}}$

We know that $\sqrt[4]{x}=x^{\frac{1}{4}$

So, $\sqrt[4]{z^{9}}=z^\frac{9}{4}$

6 0

3 years ago

Question: The stem-and-leaf plot shows the test scores of a science class. Use the plot to answer the question.

Nikitich [7]

The mode of the data is 8

7 0

2 years ago

Read 2 more answers

a stadium with 80 rows has 20 seats in the first rows,30 in the second,and so on.how many total seats are in the stadium​

a stadium with 80 rows has 20 seats in the first rows,30 in the second,and so on.how many total seats are in the stadium