<h3>
Answer: 29 miles (approximate)</h3>
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Explanation:
Segment AB is already given to be 19 miles long.
I'm assuming your teacher meant to ask about side BC, which is side 'a' since it's opposite angle A.
Use the law of cosines to find the missing side
a^2 = b^2 + c^2 - 2*b*c*cos(A)
a^2 = 12^2 + 19^2 - 2*12*19*cos(138)
a^2 = 843.874040417691
a = sqrt(843.874040417691)
a = 29.0495101579647
a = 29 when rounding to the nearest whole number
Side BC is roughly 29 miles long.
<span>The compound nickel (III) chloride dihydrate has two moles of water for every one mole of ionic compound.
In each mole of ionic compound, there are two moles of water in this compound. </span>
Answer:
Square Root of 40 to the Nearest Tenth
Square Root to the nearest tenth
Square Root of 40 to the nearest tenth, means to calculate the square root of 40 where the answer should only have one number after the decimal point.
Here are step-by-step instructions for how to get the square root of 40 to the nearest tenth:
Step 1: Calculate
We calculate the square root of 40 to be:
√40 = 6.32455532033676
Step 2: Reduce
Reduce the tail of the answer above to two numbers after the decimal point:
6.32
Step 3: Round
Round 6.32 so you only have one digit after the decimal point to get the answer:
6.3
To check that the answer is correct, use your calculator to confirm that 6.32 is about 40.
Step-by-step explanation:
Pls mark brainliest tyy!!
Answer: Only the second sequence is arithmetic.
Work:
An arithmetic sequence is a sequence in which there is a common value added or subtracted between each term in the sequence.
The first option, -2, 4, -6, 8,... is not arithmetic because the terms switch back and forth between positive and negative signs meaning that there is no common value that can be added between each term.
The second option, -8, -6, -4, -2,... is arithmetic because there is a common difference between each term which is +2.
The third option, 2, 4, 8, 16,... is not arithmetic but is, in fact, geometric. There is no common value that is added or subtracted between each term.
