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3 years ago

A line with a slope of -2 passes through the point (4, 7).

Mathematics

1 answer:

givi [52]3 years ago

6 0

Answer:y-7 = -2 ( x-4)

Step-by-step explanation:

We know the slope is -2. Thus, our equation is simply

y-7=-2 ( x-4)

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What is the area of a rectangle with two sides of length 1 and diagonal length 2?

gtnhenbr [62]

Other two sides = x

Then, x² + 1² = 2²

x² = 4 - 1
x = √3

Now, Area = Length * Width
A = 1 * √3
A = √3

In short, Your Answer would be: √3 or 1.73

Hope this helps!

7 0

3 years ago

8. The Listening Example is one of A. 27 I B. 24 preludes in this set, Opus 28. C. 20 D. 28

stira [4]

Answer:

Step-by-step explanation:

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3 years ago

Abby earns $7 per hour working as a cashier at a cafe.

ANTONII [103]

Answer:

1. So $7 per hour

For 24 hour =7×24= $168

28-24=4

4×7=28

168+28=$196

For 28 hour

7×28

= $196

2. 7×112

=$784

3. To find the difference subtract

784-196=$588

8 0

3 years ago

A surveying team set up some equipment 104104 ft from the base of a tree in order to sight the top of the tree. From ground leve

jarptica [38.1K]

Answer:

Relative error = 0.0254 %

Step-by-step explanation:

Given details

Height of equipment from base is 104 ft

Elevation angle is 27.5 degree

From figure we have

$tan\theta = \frac{x}{104}$ .........1

$tan(27.5) = \frac{x}{104}$

x = 54.13 ft

differentiating 1st eq wrt x

$\frac{d}{dx} tan\theta = \frac{d}{dx} [\frac{x}{104}]$

$sec^2\theta \frac{d\theta}{dx} = \frac{1}{104}$

Taken $d\theta \ as \Delta x \ and\ dx = \Delta x$ for minute change

$\Delta x = 1.5% x$

$= 0.015 \times 54.13 = 0.8119 ft$

from $sec^2 \theta \frac{d\theta}{dx} = \frac{1}{104}$

$\Delta \theta = \frac{1}{104 sec^2 \theta} \Delta x$

$\Delta \theta = \frac{1}{104 \times 1.115} 0.8119$

$\Delta \theta = 0.007$

Reltaive error $= \frac{\Delta \theta}{\theta} \times 100$

$= \frac{0.007}{27.5}\times 100$

Relative error = 0.0254 %

4 0

3 years ago

What two numbers multiplied together equal -36 but then added together equal 16

larisa86 [58]

18 and -2! 18(-2)= -36 and 18-2=16

8 0

3 years ago

Read 2 more answers