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2 years ago

Which equation best represents the line? (4 points)

Mathematics

2 answers:

Bond [772]2 years ago

4 0

What line....??????????

zhuklara [117]2 years ago

4 0

We need to know what the line is

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Estimate a 20% tip on a dinner bill of $171.81 by first rounding the bill amount to the nearest ten dollars.

NARA [144]

$34 is a proper 20% tip on a $171.81 dinner. Move the decimal point twice to the left, then multiply that twice.

6 0

2 years ago

How to solve бу - 5 = 7

WARRIOR [948]

Answer:

y = 2

Step-by-step explanation:

6y-5=7

+5 +5

6y=12

/6 /6

y=2

6 0

2 years ago

This is a Differential Equations problem, I only need help on part 1 from question five. I need steps as well, thank you.

jolli1 [7]

Answer:

a) $y(t) = \sqrt{2t + 1 }$

b) 1.5 hours after thickness will be 2 inches.

Step-by-step explanation:

$\frac{dy}{dt} = \frac{1}{y} \\ \\ ydy = dt \\ \\ integrating \: both \: sides \\ \\ \int y \: dy = \int 1 \: dt \\ \\ \frac{ {y}^{2} }{2} = t + c \\ \\ {y}^{2} = 2t + 2c \\ \\ y (t)= \sqrt{2t + 2c} ...(1) \\ \\ a) \: \: \: plug \: t = 0 \: in \: (1) \\ \\ y (0)= \sqrt{2(0) +2 c} \\ \\ y (0)= \sqrt{0 +2 c} \\ \\ 1 = \sqrt{2c} \: \: ( \because \: y (0)=1) \\ \\ 2c = 1 \: \implies \: c = \frac{1}{2} \\ \\ plug \: c = \frac{1}{2} \: in \: (1) \\ \\ y(t) = \sqrt{2t + 2 \times \frac{1}{2} } \\ \\ \huge \: \red {y(t) = \sqrt{2t + 1 } } \\ \\b) \: \: plug \: y(t) = 2 \: in \: above \: equation \\ \\ 2 = \sqrt{2t + 1} \\ \\ 4 = 2t + 1 \: \\ (squaring \: both \: sides) \\ \\ 4 - 1 = 2t \\ \\ 2t = 3 \\ \\ t = \frac{3}{2} \\ \\ t = 1.5 \: hours \\$

6 0

1 year ago

The diameter of a circle is 6 cm. Find its area to the nearest tenth.

Kruka [31]

Answer:

28.27cm²

Step-by-step explanation:

formula:

A=πr²

d = 2r

Solving for A

A=1/4π d² = 1/4 · π · 6² ≈ 28.27433cm²

rounded: 28.27cm²

hope this helped!

8 0

2 years ago

Read 2 more answers

2n-n-4+7n in simplest form

MrMuchimi

<span>2n-n-4+7n in simplest form is found by combining like terms:

(2-1+7)n - 4 = 8n-4, or 4(2n-1)</span>

6 0

2 years ago