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2 years ago

What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 2.5?

Mathematics

1 answer:

Elanso [62]2 years ago

7 0

Answer:

300 cm

Step-by-step explanation:

8 x 2.5 = 20

6 x 2.5 = 15

20 x 15 = 300 cm²

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A tree is 12 feet tall. A wire runs from the top of the tree to a point of 6 feet from its base. The wire is square root 180 fee

Artyom0805 [142]

13.42 is how long the wire is to the nearest hundredth of a foot

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3 years ago

A fire ranger stands atop an observation tower 70 feet above the ground and sees a fire in the distance. She measures the angle

mrs_skeptik [129]

Answer:

$103.78\:\mathrm{ft}$

Step-by-step explanation:

We can form a right triangle where the distance between the ranger's current position and fire is the hypotenuse of the triangle. In a right triangle, the tangent of an angle is equal to its opposite side divided by the hypotenuse.

Therefore, we have:

$\tan 34^{\circ}=\frac{70}{x}$ , where $x$ is the distance between the base of the tower and the fire.

Solving, we get:

$x=\frac{70}{\tan 34^{\circ}}=103.779267796\approx \boxed{103.78\:\mathrm{ft}}$

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3 years ago

Y=-1/4x +9 what is the slope and y - intercept

zvonat [6]

Well your slope is -1/4 and your y-intercept is 9

5 0

2 years ago

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What is the slope of the line x+3y=10

Minchanka [31]

Answer:

m = -1/3

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Step 1: Write equation

x + 3y = 10

Step 2: Convert to slope-intercept form

3y = 10 - x

y = 10/3 - x/3

We see that our slope would be the term -1/3x. Since m is the coefficient of x and our slope, our slope m = -1/3

3 0

2 years ago

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From a boat on the lake, the angle of elevation to the top of a cliff is 26°1'. If the base of the cliff is 205 feet from the bo

Zolol [24]

We use the tangent for this

tan 26 1 = opposite / adjacent = h / 205 where h = height of cliff

h = 205 tan 26 1 = 100 feet

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3 years ago

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