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3 years ago

What is the area of the triangle?

Mathematics

1 answer:

Delvig [45]3 years ago

6 0

Answer: 10 units squared

Step-by-step explanation: you would multiply 4 by 5 and then you divide by two/ multiply by 1/2 and then you get an area of 10 units squared please mark me as brainliest

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A granola recipe calls for 2 1/3 cups of almonds. A bag of almonds contains 1/4 cups. How many bags will be needed for the recip

Sholpan [36]

9 I think because 1/4 needs to have 4 of those to be a whole so yeah 9.

8 0

3 years ago

Simplify the expression (2h+1)(8)

Elza [17]

Answer:

$16h+8$

Step-by-step explanation:

$(2h+1)(8)$

Multiply 8 with 2h and 1

$16h+8$

8 0

3 years ago

Stanley has $18 to spend on packs of trading cards that cost $1.50 each. The inequality 18≥1.5p represents the number of packs p

V125BC [204]

Answer:

Numbers of packs p is 12

Step-by-step explanation:

Data :

Money = $18

Price of a card = $1.5

Equation : 18 ≥ 1.5p

Solve the equation for p

18/1.5 ≥ p

12 ≥ p

7 0

2 years ago

Please Graph (-2, 0.75)

kozerog [31]

Answer:

It won't allow me to put in a link for the graph but on a graph it would of course be at -2 on the x-axis, but you would go only 3/4 the way to one so it'll be right under 1 on the y-axis

Step-by-step explanation:

3 0

3 years ago

The results of a common standardized test used in psychology research is designed so that the population mean is 155 and the sta

galina1969 [7]

Answer:

The value 155 is zero standard deviations from the [population] mean, because $\\ x = \mu$ , and therefore $\\ z = 0$ .

Step-by-step explanation:

The key concept we need to manage here is the z-scores (or standardized values), and we can obtain a z-score using the next formula:

$\\ z = \frac{x - \mu}{\sigma}$ [1]

Where

z is the z-score.
x is the raw score: an observation from the normally distributed data that we want standardize using [1].
$\\ \mu$ is the population mean.
$\\ \sigma$ is the population standard deviation.

Carefully looking at [1], we can interpret it as the distance from the mean of a raw value in standard deviations units. When the z-score is negative indicates that the raw score, x, is below the population mean, $\\ \mu$ . Conversely, a positive z-score is telling us that x is above the population mean. A z-score is also fundamental when determining probabilities using the standard normal distribution.

For example, think about a z-score = 1. In this case, the raw score is, after being standardized using [1], one standard deviation above from the population mean. A z-score = -1 is also one standard deviation from the mean but below it.

These standardized values have always the same probability in the standard normal distribution, and this is the advantage of using it for calculating probabilities for normally distributed data.

A subject earns a score of 155. How many standard deviations from the mean is the value 155?

From the question, we know that:

x = 155.
$\\ \mu = 155$ .
$\\ \sigma = 50$ .

Having into account all the previous information, we can say that the raw score, x = 155, is zero standard deviations units from the mean. The subject earned a score that equals the population mean. Then, using [1]:

$\\ z = \frac{x - \mu}{\sigma}$

$\\ z = \frac{155 - 155}{50}$

$\\ z = \frac{0}{50}$

$\\ z = 0$

As we say before, the z-score "tells us" the distance from the population mean, and in this case this value equals zero:

$\\ x = \mu$

Therefore

$\\ z = 0$

So, the value 155 is zero standard deviations from the [population] mean.

5 0

4 years ago

What is the area of the triangle?​

What is the area of the triangle?