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neonofarm [45]
3 years ago
13

Characterstics of functions in math

Mathematics
1 answer:
8090 [49]3 years ago
6 0
A function is a relation in which each possible input value leads to exactly one output value
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Round 4.88 to the nearest tenth
Minchanka [31]
4.88 rounded to the nearest tenth is 4.9
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3 years ago
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Find the shaded sector and the length of the arc. Round to the nearest hundredth. ​
Dovator [93]

Answer:

Step-by-step explanation:

I'll show you how to do the first one; the other are exactly the same, so pay attention.

The formula for arc length is

AL=\frac{\theta}{360}*2\pi r where θ is the central angle's measure. It just so happens that the measure of the central angle is the same as the measure of the arc it intercepts. Our arc shows a measure of 40°; this measure is NOT the same as the length. Measures are in degrees while length is in inches, or cm, or meters, etc. Going off that info, our central angle measures 40°. Filling in the formula and using 3.1415 for π:

AL=\frac{40}{360}*2(3.1415)(3). I'm going to reduce that fraction a bit (and I'll use the same reduction in the Area of a sector coming up next):

AL=\frac{1}{9}*2(3.1415)(3) which makes

AL = 2.09 units. Now for Area of the Sector. The formula is almost identical, but instead uses the idea that the area of a circle is πr²:

A_s=\frac{\theta}{360}*\pi r^2 where θ is, again, the measure of the central angle (which is the same as the measure of the arc it intercepts). Filling in:

A_s=\frac{1}{9}*(3.1415)(3)^2 which simplifies a bit to

A_s=\frac{1}{9}*(3.1415)(9). As you can see, the 9's cancel each other out, leaving you with

A_s=3.14 units²

7 0
3 years ago
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Steve ran a distance of 150 meters in 1 1/2 minutes. What is his speed in meters per<br> hour?
WITCHER [35]

Answer:

600/mph

Step-by-step explanation:

4 0
3 years ago
Can y'all just please go help me on the ones I've posted:(
DIA [1.3K]

Answer:

YEah sure!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

help me too like im doing a test rn

8 0
3 years ago
On Martin's first stroke, his golf ball traveled 4/5 of the distance to the hole. On his second stroke, the ball went into the h
pentagon [3]
If his 1st stroke went 4/5 of the way to the hole, that means the 2nd stroke was 1/5 of the distance. Since we know that the 2nd stroke was 79 meters, we can use this to find the distance from where he started...

If 1/5 = 79 meters then
4/5 = 79 × 4 = 316 meters

Since 1/5 + 4/5 = 5/5 = 1 then 79 m + 316 m = 395 meters for the total distance.

But wait! There's more. The question asks how many kilometers the hole is from where he started... there are 1000 meters per kilometer so...

395 m × 1 km/1000 m =
395/1000 m = .395 km

Total distance from start to hole is .395 km

Yay!!
4 0
3 years ago
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