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3 years ago

For the y= 2/3x , if the y coordinate is 14 what is the x coordinate? help asap

Mathematics

2 answers:

Anastaziya [24]3 years ago

5 0

Answer:

Step-by-step explanation:

$14=\frac{2}{3}x\\x=\frac{14*3}{2}\\x=7*3\\x=21$

You multiply both sides by $\frac{3}{2}$ to get x alone. Then you solve it out for x.

nignag [31]3 years ago

4 0

Answer:

Step-by-step explanation:

y= 2/3 x

so, x= 3/2y

when y= 14

x= 3/2×14 = 21

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Find the x- and y-intercepts of the graph of -x + 3y = 37. State your answers as

kifflom [539]

Answer:

Hello!

The answer to this question is:

X = -37

y = -37/3

Step-by-step explanation:

6 0

3 years ago

Any help? I'm struggling.

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

a=-7

r=21/-7=-3

$a_{15}=a r^{n-1}=-7(-3)^{15-1}=-7(-3)^{14}=-33480783$

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3 years ago

Please help differentiate this!!!!!!!!!

vlada-n [284]

$\bf h=20ln(3t+2)+30\\\\
-------------------------------\\\\
\boxed{a}\\\\
\stackrel{0~years}{t=0}\qquad h=20ln[3(0)+2]+30\implies h=20ln(2)+30
\\\\\\
h\approx 43.86
\\\\\\
\boxed{b}\\\\
\stackrel{1~meter}{h=100}\qquad 100=20ln(3t+2)+30\implies 70=20ln(3t+2)
\\\\\\
\cfrac{70}{20}=ln(3t+2)\implies \stackrel{\textit{log cancellation rule}}{e^{\frac{7}{2}}=e^{ln(3t+2)}}\implies e^{\frac{7}{2}}=3t+2
\\\\\\
e^{\frac{7}{2}}-2=3t\implies \cfrac{e^{\frac{7}{2}}-2}{3}=t\implies 10.371817\approx t$

$\bf \boxed{c}\\\\
\cfrac{dh}{dt}=20\left(\cfrac{1}{3t+2}\cdot 3 \right)+0\implies \cfrac{dh}{dt}=20\left(\cfrac{3}{3t+2} \right)\\\\\\ \cfrac{dh}{dt}=\cfrac{60}{3t+2}
\\\\\\
\left. \cfrac{dh}{dt} \right|_{3}\implies \cfrac{60}{3(3)+2}\implies \cfrac{60}{11}
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3 years ago

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Anna would like to purchase a new bike that costs $205. She already has $31 saved. If she saves a maximum of $12 a week, the fol

Dmitrij [34]

Answer:

It will take at least 15 weeks

Step-by-step explanation:

12w+31 ≥ 205

Subtract 31 from each side

12w+31-31 ≥ 205-31

12w ≥ 174

Divide each side by 12

12w/12 ≥ 174/12

w ≥ 14.5

Rounding up to the nearest integer

w ≥ 15

It will take at least 15 weeks

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3 years ago

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5a²b² ×(3a²-4ab+6b²)

slega [8]

Answer:

15a⁴b²-20a³b³+30a²b⁴

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3a²-4ab+6b²

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(5a²b²)(3a²-4ab+6b²)

=15a⁴b²-20a³b³+30a²b⁴

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3 years ago