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3 years ago

The formula for the area of a triangle is A = 1/2bh. Solve for h.

Mathematics

1 answer:

Hitman42 [59]3 years ago

6 0

Answer:

h = 2A/b

Step-by-step explanation:

The given area triangle is denoted by:

A=1/2bh

By solving for "h", we're simply asked to make "h" the subject of the formula, that is putting "h" on one side of the equation and all other variable/values on the other side of the equation.

By doing this, we move other variables presently on the right side with "h" and the left hand side of the equation takes them all except "h", then we have:

2A/b = h.

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What should be multiplied with -25/36 to get -5/9

Ierofanga [76]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

$\frac{-\frac{5}{9}}{-\frac{25}{36}}=\\\\-\frac{5}{9}*(-\frac{36}{25})=\\\\\frac{4}{5}$

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2 years ago

20percent of what number is 74

julsineya [31]

<span> $\frac{20}{100} \times x = 74\\\\ x = 74\times \frac{100}{20}\\\\x = 74\times 5\\\\x = \boxed{370}$ </span>

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2 years ago

Read 2 more answers

Wasserman (1989) studied a process for the manufacturing of steel bolts. Historically, these bolts have a mean thickness of 10.0

zalisa [80]

Answer:

The mean of of the sample mean of these quality checks is 10 and the standard deviation is 0.7155.

Step-by-step explanation:

To solve this question, we use the central limit theorem.

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$

In this problem, we have that:

$\mu = 10, \sigma = 1.6, n = 5, s = \frac{1.6}{\sqrt{5}} = 0.7155$

The mean of of the sample mean of these quality checks is 10 and the standard deviation is 0.7155.

7 0

3 years ago

Select "equivalent" or "not equivalent" for each pair of expressions.

slega [8]

Answer:

Step-by-step explanation:

1. Not

2. Yes

3. not

5 0

2 years ago

Helen practiced the piano 5 days last week. The list below shows the number of minutes she practiced each day: 20,25,30,20,30 Wh

LekaFEV [45]

Answer:

Step-by-step explanation:

Given the data:

X : 20,25,30,20,30

Mean absolute deviation :

Σ(x - xbar) / n

n = sample size = 5

xbar = ΣX / n = (20+25+30+20+30) /5

xbar = 25

((20-25) + (25-25) + (30-25) + (20-25) + (30-25)) / 5

We take the absolute values, hence, negative signs are ignored :

(5 + 0 + 5 + 5 + 5) / 5

20 / 5

= 4

8 0

2 years ago