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3 years ago

15

Which of the following is an arithmetic sequence?

1 answer:

JulsSmile [24]3 years ago

7 0

Answer:

C

Step-by-step explanation:

an arithmetic sequence is a sequence in which you use addition/subtraction in order to achieve each term. Choice A alternates between the negative and positive therefore you can tell that it's multiplying each time, and the same goes for D, those two are incorrect. B is incorrect because you cannot add/subtract a number each time to get the next term. C, if you attempt to find the difference between in each term in choice C you will succeed and find that each time you add 3/2 each time to get the next term.

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Gemiola [76]

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2 gallon = 14 miles
3 gallon = 21 miles
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2 years ago

How do i find answers a ,b,c,d

REY [17]

Answer:

b

Step-by-step explanation:

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2 years ago

Find the exponential function that satisfies the given conditions: initial value = 70, decreasing at a rate of 0.43% per week

EleoNora [17]

B) f(t) = 70 x 1.43^t

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2 years ago

Given ABC find the values of x and y. In your final answer, include all of your calculations.

kow [346]

So with this, we will be using proportions. To solve for x, our proportion will be $\frac{x}{6} =\frac{6}{x-9}$

Firstly, cross-multiply: $x^2-9x=36$

Next, subtract 36 on both sides: $x^2-9x-36=0$

Next, replace -9x with 3x-12x $x^2+3x-12x-36=0$

Next, factor x^2+3x and -12x-36 separately: $x(x+3)-12(x+3)=0$ . After, rewrite it as $(x-12)(x+3)=0$

Next, solve for x separately in the two parentheses:

$x-12=0\\ x=12$

$x+3=0\\ x=-3$

Since we can't have a negative length, x = 12.

To solve for y, our proportion will be $\frac{y}{9} =\frac{12}{y}$

Firstly, cross-multiply: $y^2=108$

Next, just square root each side, and your answer will be (rounded to hundredths) $y=10.39$

In short, x = 12 and y = 10.39.

5 0

3 years ago

Kenya exchanges $200 for euros (€). Suppose the conversion rate is €1 = $1.321. How many euros should Kenya receive? (1 point) Q

Paul [167]

Answer:

151.4€

Step-by-step explanation:

1€ = $1.321

$200 = 200/1.321 = 151.4€

5 0

3 years ago