3 years ago

What is the perimeter of the triangle

Mathematics

1 answer:

erica [24]3 years ago

7 0

Answer:P=a+b+c

Step-by-step explanation:

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A2b -b2 a=4 and b= -7

cestrela7 [59]

Step-by-step explanation:

hope this helps you dear friend.

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3 years ago

Johanna carves a square block of wood that has on one side an area of 872 square inches. to the nearest integer, what is the len

BARSIC [14]

Let n be one side of the square wood block. Then:
n²=872
n=√872=approx. 30" per side
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3 years ago

Lasers can provide highly accurate measurements of small movements. To determine the accuracy of such a laser, it was used to ta

sp2606 [1]

Answer: $p-value \approx 0.01$

Step-by-step explanation:

Hypothesis testing

$\\\left\{\begin{matrix}H_0 : \mu_0 =0\\ H_1: \mu_0 \neq 0\end{matrix}\right.\\$

For this problem, we need to use the t-student distribution to make inference about the data. We calculate the t-statistics as below:

$\bar{X} = 20\:\mu m\\S.E. = 60\:\mu m\\n=82\\t_{stat} = \frac{\bar{X}-\mu_0}{S.E/\sqrt{n}}=\frac{20-0}{60/\sqrt{82}}=3.0185$

Using a t-statistics table, or using the function TDIST in Microsoft Excel with $t_{stat} = 3.0185,\: df (degree\: of\: freedom) = 14 - 1 = 13$ with two-tailed distribution, we obtain $p-value \approx 0.01$ .

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3 years ago

Rewrite using a single exponent:<br><br> (4^6)^6

SVETLANKA909090 [29]

(4)^36

Multiply the exponent 6 by 6 to get the new exponent of 36

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3 years ago

A ball is thrown from an initial height of 3 feet with an initial upward velocity of 36 ft/s. The ball's height h (in feet) afte

Anuta_ua [19.1K]

Answer:

t = 0.55 s and t = 1.14 s

Step-by-step explanation:

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3 years ago