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3 years ago

What is the unit rate for40 2.80

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

Answer: 14.285714 unit per rate

Step-by-step explanation:

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Write the number 1.665 × 10-1 in standard form.

saveliy_v [14]

0.1665 is standard form

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3 years ago

People, please answer me.

ikadub [295]

You are the correct one. If the person is not able to proof, and if you are rather sure about your answer, it is better to take your own answer instead :)

-9d = 63
<Multiply both sides by (-1)>
=> (-1) × (-9d) = (-1) × 63
=> 9d = -63
=> d = -7

7 0

4 years ago

A hobby store is having a sale on picture frames buy 3 get the 4th one at 75% off. What is an expression to represent total cost

Contact [7]

A hobby store is having a sale on picture frames buy 3 get the 4th one at 75% off. What is an expression to represent total cost of 4 frames.

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3 years ago

Read 2 more answers

You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta

vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

$m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$m = -\frac{\cos 2\theta}{\sin \theta}$

The tangent line is horizontal when $m = 0$ . Then:

$\cos 2\theta = 0$

$2\theta = \cos^{-1}0$

$\theta = \frac{1}{2}\cdot \cos^{-1} 0$

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , for all $i \in \mathbb{N}_{O}$

$\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}$ , for all $i \in \mathbb{N}_{O}$

The first four solutions are:

x: $\sqrt{2}$ $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$

y: 1 -1 1 -1

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

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3 years ago

Solve for b.

storchak [24]

Answer:

1. b=(d-c)/a

Step-by-step explanation:

make me a brainlist

8 0

2 years ago