Answer:
k=3
Step-by-step explanation:
2(4k+3)−13=2(18−k)−13
2(4k+3)−13=2(18−k)−13
(2)(4k)+(2)(3)+−13=(2)(18)+(2)(−k)+−13
8k+6+−13=36+−2k+−13
(8k)+(6+−13)=(−2k)+(36+−13)
8k+−7=−2k+23
8k−7=−2k+23
8k−7+2k=−2k+23+2k
10k−7=23
10k−7+7=23+7
10k=30
10k/10=30/10
k=3
<span>(14x^2+21x) = 7x(2x + 3)
A= L * W
but L = 7x so W = </span>2x + 3
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answer: </span><span>width is (2x +3) feet</span><span>
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Answer:
yes because any input of time results in only one output of altitude
yes because the airplane increases and decreases in altitude at the same rate
pick either one :>
The goal of writing a number in scientific notation is to have a decimal number, with one digit to the left of the decimal point, followed by a <span>×⨯</span><span>1010</span> to some power. To format the number this way, multiply the <span>0.00000910.0000091</span> by <span>1010</span> <span><span>−6</span><span>-6</span></span> times, making it <span>9.19.1</span>. Each multiplication by <span>1010</span> moves the decimal point one digit to the left, but in order to keep the same number, multiply <span>9.19.1</span> by <span><span>10<span>−6</span></span><span>10<span>-6</span></span></span>.<span>9.1×<span>10<span>−<span>6</span></span></span></span>
