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3 years ago

Which expression is equivalent to 5.5"?

Mathematics

1 answer:

natulia [17]3 years ago

3 0

Answer:

If you are talking about fractions, 5.5 is equivalent to 5 1/2

Step-by-step explanation:

11/2=5 1/2=5.5

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Peter measures the angles in a triangle he finds that the angles are 95˚, 10˚ and 75˚

aliina [53]

Answer:

it is correct because it adds up to 180

7 0

3 years ago

Read 2 more answers

Use the fact that the length of an arc intercepted by an angle is proportional to the radius to find the area of the sector give

Hunter-Best [27]

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta r^2}{2}~~
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad radians\\
------\\
r=3\\
\theta =\frac{\pi }{4}
\end{cases}\implies A=\cfrac{\frac{\pi }{4}\cdot 3^2}{2}\implies A=\cfrac{\frac{9\pi }{4}}{2}
\\\\\\
A=\cfrac{9\pi }{4}\cdot \cfrac{1}{2}\implies A=\cfrac{9\pi }{8}$

6 0

3 years ago

1/4,5/8,1/2 show work

Romashka [77]

Answer:

1/4+5/8+1/2=7/14 so the answer is 7/14

5 0

2 years ago

What determines the range of a function?

inna [77]

Answer:

all possible y values

Step-by-step explanation:

any y value that goes in the function is in the range , an easier way to determine that would be using graphs.

8 0

3 years ago

How much further up the wall does the ladder in figure 2 reach than

ASHA 777 [7]

The ladder in figure 2 reaches 3.2 feet further up than the ladder in figure 1.

Step-by-step explanation:

Step 1:

In both the given figures, the ladder, the wall and the floor form a right-angled triangle. The floor is the adjacent side, the wall is the opposite side and the ladder is the hypotenuse.

According to the Pythagorean theorem,

$a^{2}+b^{2}=c^{2}$ , where c is the length of the hypotenuse while a and b are the lengths of the other two sides.

Step 2:

For the ladder in figure 1, assume the distance from the floor to the ladder's top is x feet. So a = x, b = 8 and c = 10 (hypotenuse).

$a^{2}+b^{2}=c^{2}$ , $x^{2}+8^{2}=10^{2}$ , $x^{2}=100-64=36, x=\sqrt{36}=6 \text { feet }$ .

So the distance between the floor and the ladder's top is 6 feet.

Step 3:

For the ladder in figure 2, assume the distance between the floor and the ladder's top is y feet. So a = y, b = 4 and c = 10 (hypotenuse).

$a^{2}+b^{2}=c^{2}$ , $y^{2}+4^{2}=10^{2}$ , $y^{2}=100-16=48, x=\sqrt{84}=9.1651 \text { feet }$ .

So the distance between the floor and the ladder's top is 9.1651 feet.

Step 4:

The difference in heights = The wall height in figure 2 - the wall height in figure 1.

The difference in heights = 9.1651 feet - 6 feet = 3.1651 feet.

Rounding this off to the nearest tenth of a foot, we get 3.2 feet.

4 0

3 years ago