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2 years ago

A stick is 20cm long.A student makes 5% error in measuring the stick.find two possible values for the student's measurement

Mathematics

1 answer:

marishachu [46]2 years ago

8 0

Answer:

16cm

24cm

Step-by-step explanation:

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Lilia wants to rewrite 10/25 as a percent she decided to represent 10/25 first in a picture a.)how many sets of 25 will she need

neonofarm [45]

Answer:

4 sets of 25

Step-by-step explanation:

100/25 = 4

Not sure what you are asking in the end.

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2 years ago

11th grade geometry:

Aliun [14]

Answer:

The perimeter is 72 units and the area is 149 square units.

Step-by-step explanation:

$\triangle SBA$ has coordinates $S(15,-8),B(-2,21)$ and $A(0,0)$

Using the distance formula.........

Length of side $SB = \sqrt{(15+2)^2+(-8-21)^2}= \sqrt{17^2+(-29)^2}= \sqrt{1130}$

Length of side $BA= \sqrt{(-2)^2+(21)^2}= \sqrt{445}$

Length of side $AS =\sqrt{(15)^2+(-8)^2}=\sqrt{289}=17$

So, the perimeter of the triangle will be: $(SB+BA+AS)= \sqrt{1130}+ \sqrt{445}+17 =71.71... \approx 72$ units. (Rounded to the nearest unit)

The height of the triangle for the corresponding base $SB$ is 8.89 units.

Formula for the Area of triangle, $A= \frac{1}{2}(base\times height)$

So, the area of the $\triangle SBA$ will be: $\frac{1}{2}(\sqrt{1130}\times 8.89)= 149.42... \approx 149$ square units. (Rounded to the nearest unit)

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3 years ago

What two numbers add up to 12 but multiply to 20

marta [7]

Answer:

I think it’s 10plus2 then u multiply

Step-by-step explanation:

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3 years ago

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2,550 gallons in 30 days

exis [7]

The answer
is 85 gallons
in a day

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3 years ago

Someone help me do the first problem so that I can do the rest

Novay_Z [31]

Answer:

C = 69.1 ft

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

C = 2* 3.14 * 11

C =69.08

Round to the nearest tenth

C = 69.1 ft

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3 years ago

A stick is 20cm long.A student makes 5% error in measuring the stick.find two possible values for the student's measurement​

A stick is 20cm long.A student makes 5% error in measuring the stick.find two possible values for the student's measurement