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3 years ago

I) If v = u + at find u when u=5, a=3 and t=4

Mathematics

1 answer:

dusya [7]3 years ago

4 0

Step-by-step explanation:

5+ (3×4)=v

5+ (12)=v

v=17

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Answer:

$2.16 \times {10}^{ - 4}$

Step-by-step explanation:

The lab technician is dividing a cell that has a diameter of

$4 .32 \times {10}^{ - 4}$

The new cells has a diameter that is half of the diameter of the original cell.

The diameter of the new cell is given as:

$\frac{4.32 \times {10}^{ - 4} }{2}$

Rewrite the numerator in standard notation:

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We rewrite in scientific notation to obtain:

$2.16 \times {10}^{ - 4}$

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3 years ago

Solve for x : ax+v=3(x-c)

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Answer:

$x=\frac{3c+v}{a-3}$

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

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3 years ago

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Which of the following is the product of the rational expressions shown below?

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Answer:

Step-by-step explanation:

A P E X

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3 years ago

A recent broadcast of a television show had a 10 share, meaning that among 6000 monitored households with TV sets in use, 10%

Kisachek [45]

Answer:

Null and alternative hypothesis

$H_0: \pi \geq0.25\\\\H_1: \pi$

Test statistic $z=-26.82$

P-value $P=0$

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It is concluded that the proportion of households tuned into the program is less than 25%. The claim of the advertiser is rigth and got statistical support.

Step-by-step explanation:

We have to perform a hypothesis test of a proportion.

The claim is that less than 25% were tuned into the program, so we will state this null and alternative hypothesis:

$H_0: \pi \geq0.25\\\\H_1: \pi$

The signifiance level is 0.01.

The sample has a proportion p=0.1 and sample size of n=6000.

The standard deviation of the proportion, needed to calculate the test statistic, is:

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As this is a one-tailed test, the P-value is P(z<-26.82)=0. The P-value is smaller than the significance level (0.01), so the effect is significant.

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3 years ago

Segment AB has endpoints A(–4, 6) and B(1, 4). After a dilation, centered at the origin, the image of A is (–6, 9). Without meas

Ksivusya [100]

With A and its image one can get the dilation factor;
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Therefore, to get the image of B we multiply the coordinates of B by the dilation factor;
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Thus the image of B = (1.5,6)

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3 years ago

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I) If v = u + at find u when u=5, a=3 and t=4​

I) If v = u + at find u when u=5, a=3 and t=4