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Yakvenalex [24]
3 years ago
12

4 students is what percent of 20 students

Mathematics
2 answers:
Gala2k [10]3 years ago
3 0
The answer is 5 percent.
sertanlavr [38]3 years ago
3 0
20 / 4 = 5

The answer is 5.
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Calculate the slope of the line (-6,-3) (-2,-3)
Vika [28.1K]

Answer:

There is no slope

Step-by-step explanation:

When finding the slope both numbers have to be positive without positive numbers you will not have a positive slope there fore no slope

4 0
2 years ago
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she went up 22.1 feet. How many
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A scientist is actually stronger then u but okay
4 0
3 years ago
Read 2 more answers
Find (a) arc length and (b) Area of a sector.
barxatty [35]

Answer:

a) 29.45 cm (2 dp)

b) 220.89 cm² (2 dp)

Step-by-step explanation:

<u>Formula</u>

\textsf{Arc length}=r \theta

\textsf{Area of a sector}=\dfrac{1}{2}r^2 \theta

\quad \textsf{(where r is the radius and}\:\theta\:{\textsf{is the angle in radians)}

<u>Calculation</u>

Given:

  • \theta=\dfrac{5 \pi}{8}
  • r = 15 cm

\begin{aligned}\implies \textsf{Arc length} & =r \theta\\& = 15\left(\dfrac{5 \pi}{8}\right)\\& = \dfrac{75}{8} \pi \\& = 29.45\: \sf cm\:(2\:dp)\end{aligned}

\begin{aligned} \implies \textsf{Area of a sector}& =\dfrac{1}{2}r^2 \theta\\\\ & = \dfrac{1}{2}(15^2) \left(\dfrac{5 \pi}{8}\right)\\\\& = \dfrac{225}{2}\left(\dfrac{5 \pi}{8}\right)\\\\ & = \dfrac{1125}{16} \pi \\\\& = 220.89 \: \sf cm^2\:(2\:dp)\end{aligned}

5 0
2 years ago
|x-(-12)|; if x&gt;-12 write without the absolute value sign
Gennadij [26K]

Answer: -1=6-7/5

Step-by-step explanation:

6 0
3 years ago
Which of the following represents the graph of f(x) = one−half to the power of x?
puteri [66]

f(x) = \frac{1}{2}^x

In this exponential function , the base is \frac{1}{2}

if base is less than 1 then it a decreasing function

We can verify it using a table

We plug in some x and values and find out f(x) to get point for the graph

x -----> f(x)

-1 -----> 2

0 ------> 1

1 -------> 0.5

The table is same as the points in first graph.

So first graph represents the graph of f(x) = \frac{1}{2}^x

4 0
3 years ago
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