All categories

3 years ago

Find the slope of the line passing through the points (-4,8) (-8,3)

Mathematics

1 answer:

Digiron [165]3 years ago

3 0

$m=\dfrac{y_2-y_1}{x_2-x_1}\\\\
m=\dfrac{8-3}{-4-(-8)}\\
m=\dfrac{5}{4}$

You might be interested in

Which of the following developments took place during the presidency of George Bush?

zysi [14]

The cold war came to an end

3 0

4 years ago

The volume of a cone is 36, what is the volume of a sphere that has the same height and radius

Nostrana [21]

Answer:

144

Step-by-step explanation:

7 0

3 years ago

Computers from a certain manufacturer have a mean lifetime of 62 months, with a standard deviation of 12 months. The distributio

Goryan [66]

Answer:

Between 38 and 86 months.

Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

In this question:

Mean of 62, standard deviation of 12.

Between what two lifetimes does Chebyshev's Theorem guarantee that we will find at least approximately 75% of the computers?

Within 2 standard deviations of the mean, so:

62 - 2*12 = 38

62 + 2*12 = 86

Between 38 and 86 months.

6 0

3 years ago

n considering the cross YyRr x YyRr, the phenotype ratios of the F2 generation will be _____. 1:3:1 3:1 9:3:3:1 4:1

Marrrta [24]

The cross of YyRr will produce 16 distinct genotypes.

If the two alleles are far enough on the same chromosome, then the Y and R alleles will be distributed independently of one another, so that the genotypic ratio among each allele would be 1:2:1 (YY:Yy:yy, and similarly for the R allele). Then the dihybrid cross will yield a genotypic ratio of 1:2:1:2:4:2:1:2:1 (YYRR:YYRr:YYrr:YyRR:YyRr:Yyrr:yyRR:yyRr:yyrr).

Now, assuming perfect Mendelian inheritance (complete dominance), the phenotypes exhibited by YY and Yy will be considered equivalent, and similarly for RR and Rr, so the phenotypic ratio would be 9:3:3:1 (YR:Yr:yR:yr).

7 0

3 years ago

A new movie can be downloaded for $8 per movie. An older movie can be downloaded for $3 per movie. Quinn buys a total of 7 movie

Juli2301 [7.4K]

Let be x the number of new movie, and y the older,
the matrix according to the problem is AZ=B, look at the attached file

8 0

3 years ago