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svp [43]
2 years ago
15

Haley’s work evaluating (Negative 2) Superscript 8 is shown below.

Mathematics
1 answer:
mel-nik [20]2 years ago
3 0

Step-by-step explanation:

She made a sign error when multiplying and should have had 256 as a final answer.

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The points (1,2),(1,-3),and (5,-3) form a triangle on the coordinate plane. b. What is the perimeter of the triangle?
Alexeev081 [22]
The perimeter of the triangle is 13.56 units.

The perimeter of a shape on a coordinate plane is found by finding the distance between all points, and then adding them together. It's easier to write it out than to type so I'll attach a photo of my work.

8 0
3 years ago
Find the circumference of the circle with the given radius or diameter. (Use 3.14 for π.) Diameter is 10cm
AlladinOne [14]

Answer:


Step-by-step explanationtake the diameter, 10cm and multiply by pi (3.14) and the answer is 31.4

5 0
3 years ago
Santiago is an election officer. On election day, he travels from his home to the polling place, which is 5.4 miles away. What i
inysia [295]

Answer:

9 inches

Step-by-step explanation:

5.4/0.6=9

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3 years ago
Graph the inequality<br> y &lt; -x^2 +4x -6
DochEvi [55]

Answer:

Graph the inequality by finding the boundary line, then shading the appropriate area.

Step-by-step explanation:

Hope this helps...answer in the image below !

8 0
2 years ago
A 10 foot ladder is leaning against a wall. Call x the distance from the top of the ladder to the ground, and call y the distanc
liq [111]

-5.3\:\text{ft/s}

Step-by-step explanation:

We start by applying the Pythagorean theorem to the ladder, with its length L as the hypotenuse:

L^2 = 100\:\text{ft}^2 = x^2 + y^2

where x is the vertical distance from the top of the ladder to the ground and y is the horizontal distance from the bottom of the ladder to the wall. Taking the derivative of the above expression with respect to time, we get

0 = 2x\dfrac{dx}{dt} + 2y\dfrac{dy}{dt}

Solving for dx/dt, we get

\dfrac{dx}{dt} = -\left(\dfrac{y}{x}\right)\dfrac{dy}{dt} = -\left(\dfrac{\sqrt{L^2 - x^2}}{x}\right)\dfrac{dy}{dt}

We know that

\dfrac{dy}{dt} = 4\:\text{ft/s}

when x = 6 ft. So the rate at which the top of the ladder is going down is

\dfrac{dx}{dt} = -\left(\dfrac{\sqrt{100\:\text{ft}^2 - (6\:\text{ft})^2}}{6\:\text{ft}}\right)(4\:\text{ft/s})

\:\:\:\:\:\:\:= -5.3\:\text{ft/s}

The negative sign means that the distance x is decreasing as y is increasing.

5 0
3 years ago
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