3 years ago

Using the order of operations and locations of parentheses (brackets), change the value

Mathematics

1 answer:

artcher [175]3 years ago

6 0

Answer:

4 ( 4 + 4 + 4 )

Step-by-step explanation:

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Consider triangle ABC as pictured below. If B is transformed according to the rule (x,y) --> (x-4,y), then △AB'C will be a __

inessss [21]

Answer:

Right triangle

Step-by-step explanation:

7^2 + 6^2 = c^2

49 + 36 = c^2

85 = c^2

c = 9.22

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3 years ago

11. An experiment is set up to study the weights of 45 frogs after they are given a hormone treatment. The population mean is 22

sveta [45]

Answer: The standard error of the sample mean = 0.44

Step-by-step explanation:

Standard error of the sample mean = $\dfrac{\sigma}{\sqrt{n}}$ <em> , where </em> $\sigma$ = population standard deviation , n= sample size.

Given : n= 45 , $\sigma= 2.96$ grams

The e standard error of the sample mean $=\dfrac{2.96}{\sqrt{45}}$

$=\dfrac{2.96}{6.7082039325}\\\\\approx\ 0.44$

Hence, the standard error of the sample mean = 0.44

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3 years ago

You need at least 5000 points to earn a gift card from your bank. You currently have 2700 points.

steposvetlana [31]

Answer:

x + 2700 ≥ 5000 → x ≥ 2300

Step-by-step explanation:

The inequality is: x + 2700 ≥ 5000 with x being the number of points

To solve we need to subtract 2700 from both sides to get: x ≥ 2300

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3 years ago

What is a down payment of 20 percent on a purchase price of $215,000

PSYCHO15rus [73]

20% of 215,000......turn ur percent to a decimal...." of " means multiply
0.20(215,000) = 43,000

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3 years ago

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In class of 40 students, 19 play tennis, 20 play netball and 8 play both. A student is randomly chosen from the class. Determine

Lerok [7]

Answer:

4/5 or 0.8 or 80%

Step-by-step explanation:

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3 years ago

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