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4 years ago

12

What is the area of this triangle?

2 answers:

VARVARA [1.3K]4 years ago

6 0

This triangle has a base of 6 units and a height of 7 units tall. The area of a triangles’ formula is
A= h B
B
Divided by 2

OR 1/2bh

Let’s plug in the base and height which is
6•7
=42/2=21

The area of the triangle is 21 units, can you give me the brainliest?

kozerog [31]4 years ago

5 0

Answer:

21

Step-by-step explanation:

B $\frac{B*h}{2}$ = $\frac{7*6}{2}$ =21

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4 years ago

Given:An = [6 n/(-4 n + 9)]For both of the following answer blanks, decide whether the given sequence or series is convergent or

Mrrafil [7]

Answer:

The sequence is convergent and the serie is divergent.

Step-by-step explanation:

Sequence:

We calculate the limit when n tends to infinity to see if it is convergent or divergent:

$\lim_{n \to \infty} \frac{6n}{-4n+9} = \frac{6}{-4} = \frac{-3}{2} \neq 0$ then, the sequence is convergent.

Serie:

$\sum_{n=1}^{\infty} (\frac{6n}{-4n+9})$ . To know if it converges we are going to use the limit test:

$\lim_{n \to \infty} a_n$ . If this limit is non equal to 0 the serie diverges.

$\lim_{n \to \infty} \frac{6n}{-4n+9} = \frac{6}{-4} = \frac{-3}{2} \neq 0$ , then the serie diverges.

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4 years ago

-8 ≤ 2/5(k-2)<br> What is the equation

Ksivusya [100]

i believe the answer is , k ≥ −18 , i’m not sure tho

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3 years ago

Read 2 more answers

I need help with this

Ne4ueva [31]

Answer:

use calculator

Step-by-step explanation:

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3 years ago

Add an intersection the red light times normally distributed by the mean of three minutes and a standard deviation of .25 minute

Soloha48 [4]

95% of red lights last between 2.5 and 3.5 minutes.

<u>Step-by-step explanation:</u>

In this case,

The mean M is 3 and
The standard deviation SD is given as 0.25

Assume the bell shaped graph of normal distribution,

The center of the graph is mean which is 3 minutes.

We move one space to the right side of mean ⇒ M + SD

⇒ 3+0.25 = 3.25 minutes.

Again we move one more space to the right of mean ⇒ M + 2SD

⇒ 3 + (0.25×2) = 3.5 minutes.

Similarly,

Move one space to the left side of mean ⇒ M - SD

⇒ 3-0.25 = 2.75 minutes.

Again we move one more space to the left of mean ⇒ M - 2SD

⇒ 3 - (0.25×2) =2.5 minutes.

The questions asks to approximately what percent of red lights last between 2.5 and 3.5 minutes.

Notice 2.5 and 3.5 fall within 2 standard deviations, and that 95% of the data is within 2 standard deviations. (Refer to bell-shaped graph)

Therefore, the percent of red lights that last between 2.5 and 3.5 minutes is 95%

8 0

4 years ago