All categories

3 years ago

Answer the photo please

Mathematics

1 answer:

alexandr402 [8]3 years ago

7 0

Answer:

66.666666666667% error

Step-by-step explanation:

Percent Error = Vobserved - Vtrue / Vtrue

= 9 - 27 / 27

= -18/27

= -66.666666666667%

= 66.666666666667% error

I hope this helps!

You might be interested in

Emily is entering a bicycle race for charity. her mother pledges $0.80 for every 0.5 mile she bikes. if emily bikes 14 miles, ho

wariber [46]

I believe the answer is $11.20

4 0

3 years ago

Read 2 more answers

Proving triangle similarity given QR PT and QPR STR prove PQR TSR

Vikki [24]

Answer:

1. QR- PT given

2. <QPR=<STR given

3. <QRP and <SRT (are right angles) def. of perpendicular

4. <QRP = <SRT all right angles are =

5. PQR~ TSR AA similarity theorem

Step-by-step explanation:

edge 2021

3 0

3 years ago

Read 2 more answers

Emergency 911 calls to a small municipality in Idaho come in at the rate of one every two minutes. Assume that the number of 911

nordsb [41]

Answer: a) 30, b) 0.2138, c) 0.0820

Step-by-step explanation:

Since we have given that

X be the number of calls in 1 hour = 60 minutes

Rate of one call every two minutes.

$\lambda=\dfrac{1}{2}$

(a) What is the expected number of 911 calls in one hour?

$\lambda=\dfrac{1}{2}\times 60=30$

(b) What is the probability of three 911 calls in five minutes? If required, round your answer to four decimal places.

$\lambda=\dfrac{1}{2}\times 5=2.5$

Number of calls = 3

So, P(X=3) is given by

$P(X=3)=\dfrac{e^{-\lambda}\lambda^x}{x!}\\\\P(X=3)=\dfrac{e^{-2.5}\times (2.5)^3}{3!}\\\\P(X=3)=0.2138$

(c) What is the probability of no 911 calls during a five-minute period? If required, round your answer to four decimal places.

$P(X=0)=\dfrac{e^{-2.5}(2.5)^0}{0!}=0.0820$

Hence, a) 30, b) 0.2138, c) 0.0820

4 0

3 years ago

Solve 4sin^2 x-3=0 find two values of sinx that satisfy this equation

Leviafan [203]

$4 sin^{2} x-3=0 \\ 4 sin^{2} x=3 \\ sin^{2} x= \frac{3}{4} \\ sinx= \pm \sqrt{ \frac{3}{4} } \\ sinx= \frac{ \sqrt{3} }{2} \ or \ sinx=- \frac{ \sqrt{3} }{2} \\ x= \frac{ \pi }{3} , \ \frac{2 \pi }{3} , \ \frac{4 \pi }{3} , \ \frac{5 \pi }{3}$

5 0

3 years ago

If an = 2n - 8, then which one is not a term of the sequence? ( an means nth term)

Phantasy [73]

Answer:

13 is answer

Step-by-step explanation:

hope it helps

3 0

2 years ago