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bulgar [2K]
2 years ago
10

Miles has saved $40. He wants to buy a cell phone for $129 in about 4 months. To find out how much he should save each week, he

wrote 40 + 16x = 129. Is his equation accurate? Why or Why not?
Mathematics
1 answer:
Marianna [84]2 years ago
5 0

Answer: No, the equation is not accurate.

Step-by-step explanation: The proper equation is 4x + 40 = 129. This is because 16 is nowhere in the scenario, and the term before x is months, so the correct term would be 4x.

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Which mapping diagram does not represent a function? es A) 2 26 347 4 8 B) 2 37 4 18 C) B 2 6 3-47 4 8 D) 2 3 4 6 7 8​
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I think it is A

Step-by-step explanation:

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2 years ago
Which is an estimate of LaTeX: \sqrt{14}<br> 14<br> to the nearest hundredth?
Mariana [72]

Answer:

3.74

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Square root of a number is the number that multiplies by itself to result in, in this case, 14.  The number is irrational, often, though here is close to 3.74, according to the calculator.  Many, though not all, courses recommend calculators for determining square roots, as the mathematical process is quite complex and often not taught.  Try this if your course allows, and if not, wow that's a tough course.  

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Read 2 more answers
The sum of squares of two consecutive odd numbers is 514 find the numbers ​
amid [387]

Correct Question : The sum of squares of two consecutive positive odd numbers is 514. Find the numbers.

\rule{130}1

Solution :

Let the two consecutive positive odd numbers be x and (x + 2)

\rule{130}1

☯ \underline{\boldsymbol{According\: to \:the\: Question\:now :}}

:\implies\sf x^2 + (x + 2)^{2} = 514 \\\\\\:\implies\sf x^2 + x^2 + 4x + 4 = 514\\\\\\:\implies\sf 2x^2 + 4x + 4 = 514 \\\\\\:\implies\sf 2x^2 + 4x = 514 - 4\\\\\\:\implies\sf 2x^2 + 4x = 510 \\\\\\:\implies\sf 2x^2 + 4x - 510 = 0\\\\\\:\implies\sf x^2 + 2x - 255 = 0 \:\:\:\:\:\Bigg\lgroup \bf{Dividing\:by\:2}\Bigg\rgroup\\\\\\:\implies\sf x^2 + 17x - 15x - 255 = 0\\\\\\:\implies\sf x(x + 17) - 15(x + 17) = 0\\\\\\:\implies\sf (x + 17) (x - 15)\\\\\\:\implies\sf x = - 17\:or\:x = 15\\\\\\:\implies\underline{\boxed {\sf x = 15}}\:\:\:\:\:\Bigg\lgroup \bf{Positive\:odd\: number}\Bigg\rgroup

When,

\bullet\: \textsf {x = } \textbf {15}

\bullet\: \sf x + 2 = 15 + 2 =\textbf{ 17}

\therefore\:\underline{\textsf{The required positive integer is \textbf{15 and 17}}}.

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3 years ago
16) Graph g(x) = x + 3 + 2
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X=1.6 just did the math
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1 year ago
Can someone give me a hand here?
IrinaVladis [17]

Answer:

49a^8, I hope this helps :)

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