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4 years ago

Write an equation to determine the number(t) that Raymond was on the trampoline.

Mathematics

1 answer:

nata0808 [166]4 years ago

5 0

An equation you can write is 1.25t+7=43.25. When you solve this equation you will get 29 as t. So, he was on the trampoline for 29 minutes.

Hope this helped!

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Please help me solve this question and steps.Thank you.

zhannawk [14.2K]

9514 1404 393

Answer:

Step-by-step explanation:

The first step is to understand that the question is asking about the future value of series of payments. An appropriate formula is ...

P = A(n/r)((1 +r/n)^(nt) -1)

where P is the future value, A is the periodic payment made n times per year for t years. r is the annual interest rate.

The next step is to substitute the given values and do the arithmetic. Using the given values, we have ...

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Shen will have accumulated about $8,030.32, which is not enough to meet his goal.

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3 years ago

Select the function that represents a parabola with zeros at x = –2 and x = 4, and y-intercept (0,–16). A ƒ(x) = x2 + 2x – 8 B ƒ

Ahat [919]

Answer:

D. $f(x) = 2\cdot x^{2}-4\cdot x -16$

Step-by-step explanation:

Any parabola is modelled by a second-order polynomial, whose standard form is:

$y = a\cdot x^{2}+b\cdot x + c$

Where:

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

$a$ , $b$ , $c$ - Coefficients, dimensionless.

In addition, a system of three linear equations is constructed by using all known inputs:

(-2, 0)

$4\cdot a -2\cdot b + c = 0$ (Eq. 1)

(4, 0)

$16\cdot a + 4\cdot b +c = 0$ (Eq. 2)

(0,-16)

$c = -16$ (Eq. 3)

Then,

$4\cdot a - 2\cdot b = 16$ (Eq. 4)

$16\cdot a + 4\cdot b = 16$ (Eq. 5)

(Eq. 3 in Eqs. 1 - 2)

$a - 0.5\cdot b = 4$ By Eq. 4 (Eq. 4b)

$a = 4 + 0.5\cdot b$

Then,

$16\cdot (4+0.5\cdot b) + 4\cdot b = 16$ (Eq. 4b in Eq. 5)

$64 + 12\cdot b = 16$

$12\cdot b = -48$

$b = -4$

The remaining coeffcient is:

$a = 4 + 0.5\cdot b$

$a = 4 + 0.5\cdot (-4)$

$a = 2$

The function that represents a parabola with zeroes at x = -2 and x = 4 and y-intercept (0,16) is $f(x) = 2\cdot x^{2}-4\cdot x -16$ . Thus, the right answer is D.

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4 years ago

ABCD has congruent diagonals.

Aleks04 [339]

The correct answer is, ABCD has four congruent angles.

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Which of these canadian provinces is locate furthest east <br><br> answer is Quebec

qwelly [4]

Newfoundland and Labrador, and Quebec are the provinces located further east.

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3 years ago

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Aleks [24]

Answer:

1.01 Quiz: Ratios k12 answer will would be

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Step-by-step explanation:

Took the k12 quiz :]

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2 years ago

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