2 years ago

The first 5 terms of a sequence are shown below:

Mathematics

1 answer:

slamgirl [31]2 years ago

7 0

Answer:

c: -7

Step-by-step explanation:

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Notebooks are originally on sale for $2.00. This school year they were marked up by 15%. What's

Aleks04 [339]

Answer:

the new notebook price is

Step-by-step explanation:

10% of $2.00 is 20 cents. 5% is 10 cents. 20+10= 30. 30 cents. $2.00+30 = $2.30

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3 years ago

(01.04 LC)Multiply (-1/3)(1/4)

pashok25 [27]

Answer:

D: -1/12

Step-by-step explanation:

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3 years ago

Analysis of an accident scene indicates a car was traveling at a velocity of 69.5 mph (31.1 m/s) along the positive x-axis at th

STatiana [176]

We can find the acceleration via

${v_f}^2-{v_i}^2=2a\Delta x$

We have

$\left(5.20\dfrac{\rm m}{\rm s}\right)^2-\left(31.1\dfrac{\rm m}{\rm s}\right)^2=2a(115\,\mathrm m)$

$\implies\boxed{a=-4.09\dfrac{\rm m}{\mathrm s^2}}$

Then by definition of average acceleration,

$a_{\rm ave}=\dfrac{v_f-v_i}t$

so that

$-4.09\dfrac{\rm m}{\mathrm s^2}=\dfrac{5.20\frac{\rm m}{\rm s}-31.1\frac{\rm m}{\rm s}}t$

$\implies\boxed{t=6.33\,\mathrm s}$

We alternatively could have found the time without knowing the acceleration. Since acceleration is constant, the average velocity is

$v_{\rm ave}=\dfrac{x_f-x_i}t=\dfrac{v_f+v_i}2$

Then

$\dfrac{115\,\rm m}t=\dfrac{5.20\frac{\rm m}{\rm s}+31.1\frac{\rm m}{\rm s}}2$

$\implies\boxed{t=6.33\,\mathrm s}$

7 0

3 years ago

A culture of 100,000 bacteria triples every hour. How many bacteria were there 3 hours ago? (easy steps please)

Crank

Answer:

If it multiplies by 3 each hour, you would divide by three if you are looking for the first term. It is Geometric Sequence.

Step-by-step explanation:

100,000/3=33333.3333333 (1/3)

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3 years ago

7/8=?/48<br> a.6<br> b.13<br> c.1<br> d.42

ryzh [129]

D) you just multiply the numerator and denominator by 6 to get an equivalent fraction

7 0

3 years ago

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