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2 years ago

10

Please help people :)

1 answer:

madam [21]2 years ago

4 0

Answer:

B) {3.75}

Step-by-step explanation:

Step 1: Make the 6 and 8 the sme thing by finding a number they both multiply towards. In this case it would be 8×3=24 and 6×4=24

Step 2: Multiply 5 by 3 since you multipliEd 8 by 3 so now you have 15/24.

Step 3: Divide the 15 by 4 since you multiplied 6 by 4 to get get 3.75

The only reason you made the 8 and the 6 the same was to see what you would divide 15 by. <u>Please give brainliest if I helped :)</u>

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Determine whether the polynomial is a difference of squares and if it is, factor it.

patriot [66]

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3 years ago

Meg surveyed some students at her school about their favorite professional sports. Of the students surveyed, 2 said football was

elixir [45]

Answer:

$\frac{1}{5}$

Step-by-step explanation:

Assuming a total of ten students were asked, $\frac{2}{10}$ chose football and $\frac{8}{10}$ chose other sports. $\frac{2}{10}$ simplified is $\frac{1}{5}$ , so that's the experimental chance that the next student favors football.

4 0

2 years ago

Read 2 more answers

A culture started with 3000 bacteria. After 2 hours it grew to 3300 bacteria. Predict how many bacteria will be present after 16

bixtya [17]

Answer:

$6,430\ bacteria$

Step-by-step explanation:

we have a exponential function of the form

$y=a(1+r)^{x}$

where

y is the population of bacteria

a is the initial value

r is the rate of growth

x is the number of hours

we have

a=3,000 bacteria

$y=3,000(1+r)^{x}$

For x=2, y=3,300

substitute

$3,300=3,000(1+r)^{2}$

$(3,300/3,000)=(1+r)^{2}$

Apply square root both sides

$1+r=\sqrt{3.3/3}$

$r=\sqrt{3.3/3}-1$

$r=0.0488$

$r=4.88\%$

substitute in the equation

$y=3,000(1+0.0488)^{x}$

$y=3,000(1.0488)^{x}$

<u><em>Predict how many bacteria will be present after 16 hours</em></u>

For x=16 hours

substitute

$y=3,000(1.0488)^{16}$

$y=6,430\ bacteria$

6 0

3 years ago

hat is the speed of a wave if the wavelength is 18 m and the frequency is 35 Hz? (Quick Hurry, need answer)

Andrew [12]

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3 0

3 years ago

Read 2 more answers

Perry finished a 100-meter race in 7/8 of a minute. The winner of the race used 14/15 of Perry's time to finish the race. How mu

konstantin123 [22]

Answer:

49 seconds

Step-by-step explanation:

The time perry used is 7/8 of a minute

a minute equals to 60 seconds

so the time perry used is 7/8 x 60 = 52.5 seconds

The winner used 14/15 of 52.5 seconds (perrys time)

so 14/15 x 52.5 = 49 seconds

3 0

3 years ago