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3 years ago

Find the probability of

Mathematics

1 answer:

Viktor [21]3 years ago

6 0

Answer:

1)probability of choosing a yellow marble is 6/14 or 3/7(in lowest terms)

2)probability of showing its heads is 1/2

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The estimated sum of 857 + 234 is

Llana [10]

Answer:

1,091

hope it helps.

6 0

3 years ago

How many decibels is this? show work

slavikrds [6]

Answer:

115 dB

Explanation:

1. Given equation:

$\beta =10log(\frac{I}{I_0})\\\\ I_0=10^{-12}W/m^2$

2. Given intensity:

$I=0.315W/m^2$

3. Decibels

$\beta =10log(0.315/10^{-12})\\ \\ \beta =10log(315,000,000,000)\\ \\ \beta =10(11.498)=114.98\approx 115$

4 0

3 years ago

Jada Elena and Lin walked a total of 37 miles last week. jada walked 4 more miles that elena, and Lin walked 2 more miles than j

MA_775_DIABLO [31]

Answer:

Jada walked $13\ miles$

Elena walked $9\ miles$

Lin walked $15\ miles$

Step-by-step explanation:

Let

x----> total miles walked by Jada

y----> total miles walked by Elena

z----> total miles walked by Lin

we know that

$x+y+z=37$ -----> equation A

$x=y+4$ -----> $y=x-4$ ------> equation B

$z=x+2$ ------> equation C

Substitute equation C and equation B in equation A and solve for x

$x+(x-4)+(x+2)=37$

$3x=37+2$

$3x=39$

$x=13\ mi$

Find the value of y

$y=13-4=9\ mi$

Find the value of z

$z=13+2=15\ mi$

therefore

Jada walked $13\ miles$

Elena walked $9\ miles$

Lin walked $15\ miles$

3 0

3 years ago

If the 16 boys in the classroom is 40% what is the percent of girls

notsponge [240]

Answer:

60%

Because the reaming percent has to add up to 100. 60 plus 40 is 100

3 0

2 years ago

Read 2 more answers

In ΔABC shown below, ∠BAC is congruent to ∠BCA: Triangle ABC, where angles A and C are congruent Given: Base ∠BAC and ∠ACB are c

Morgarella [4.7K]

1. Definition of bisector
2. ASA congruence theorem or ASA Postulate

6 0

2 years ago

Read 2 more answers