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inna [77]
3 years ago
15

Using the box and whisker plot, what percent of the class scored between an

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
8 0
I Think The answer is c I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
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What is the value of X
maw [93]

Answer:

x = 30

Step-by-step explanation:

The two angles add to a right angle which is 90 degrees

30 +2x = 90

Subtract 30 from each side

30 +2x - 30 =90-30

2x= 60

Divide each side by 2

2x/2 = 60/2

x = 30

3 0
3 years ago
Read 2 more answers
Use Euler’s method to estimate the value of y(20). Use a step size of ∆x = 5. Please fill out the remainder of the chart complet
crimeas [40]

Answer:

y(20)=14,322

Step-by-step explanation:

We need to solve the equation:

dy/dx=0.4xy

with initial point

y(0) = 2

with incerments

\Delta x=h=5

By Euler's method, we have:

y(x+h)=y(x)+h*f'(x,y)

We start with the initial point

y(5)=y(0)+5*f'(0,2)=2+5*(0.4*0*2)=2

And we continue until we reach the value for y(20)

y(10)=y(5)+5*f'(5,2)=2+5*(0.4*5*2)=2+20=22\\\\\\y(15)=y(10)+5*f'(10,22)=22+5*(0.4*10*22)=22+440=462\\\\\\y(20)=y(15)+5*f'(15,462)=462+5*(0.4*15*462)=462+13,860\\\\y(20)=14,322

4 0
3 years ago
Assume that y varies inversely as x. If, y, is 2.4 when x = 5, which is an equation that relates x and y?
Firlakuza [10]
K=y•x
Inverse means 1/variable
y=k•1/x
y=k/x
k=y•x

x=5
y=2.4
k=2.4 • 5
k=12

Answer is:

y=12/x

Good luck.
4 0
3 years ago
If 12 counters are three-fourths of a set of counters, draw a full set of these counters.
lapo4ka [179]
We are given:

12 counters which are three-fourths of a set of counters, meaning the total number of counters in a set is determined by:

total number of counters in a set = 12/(3/4) = 16 counters

Therefore, we need to draw 16 counters and shade 12 of them to represent the three-fourths of the set. 

5 0
3 years ago
Describe the geometrical transformation and write the approximate value with working ​
lianna [129]

Answer:

\boxed{\text{a) Translation 5 units up; b)}\approx 110}\\

Step-by-step explanation:

a) Mapping the graphs

Mapping one graph (A) onto another (B) means that each vertical line through a point in A intersects the graph of the B at only one point.

In the diagram, the graph of ƒ(x) = √(x² + 9) is the blue line and the graph of g(x) = 5 + √(x² + 9) is in green.

Each vertical line through ƒ(x) intersects g(x) in only one point.

For example, a vertical line from (4, 0) intersects ƒ(x) at (4, 5) and g(x)

at (4, 10).

Every point in g(x) is five units higher than the corresponding point in ƒ(x).

Thus, mapping ƒ(x) onto g(x) is a translation of five units upward.

b) Integration

\int_{2}^{11}{(\sqrt{x^{2}+9}})dx\approx 65\\

\int_{2}^{11}{(5 + \sqrt{x^{2}+9})}dx \approx [5x]_2^{11}+65\\

\approx (55 - 10) + 65 \approx 45 + 65\\

\boxed{\approx 110}\\

5 0
3 years ago
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