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3 years ago

The triangles are similar. Write a similarity statement for the triangles.

Mathematics

1 answer:

Alecsey [184]3 years ago

3 0

Answer:

we know that

If two figures are similar, then its corresponding sides are proportional and its corresponding angles are congruent

In this problem

Triangles XZY and VZW are similar

therefore

corresponding angles are congruent

∠XZY≅∠VZW

∠ZXY≅∠ZVW

∠XYZ≅∠VWZ

corresponding sides are proportional

Step-by-step explanation:

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Most staircases in use today have 9−inch treads and 8 12 −inch risers. What is the slope of a staircase with these measurements?

Sati [7]

Answer:

The value is $m = 0.9022$

Step-by-step explanation:

From the question we are told that

The length of the treads is $a = 9 \ inch$

The length of the risers is $b = 8.12 \ inch$

Generally the slope of the staircase is

$m = \frac{b}{a}$

=> $m = \frac{8.12}{9}$

=> $m = 0.9022$

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3 years ago

Simplify the expression:<br> x+2/ x^2 -4 - (x - 2)

bonufazy [111]

Answer:

2 ( 1 + x ) ( 1 − x ) over x ^2

Step-by-step explanation:

if you didn't get that its 2 ( 1 + x ) ( 1 − x ) as the numerator and x ^2 as the denominator

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3 years ago

Read 2 more answers

a fish tank contains 18 goldfish and 22 guppies . if you randomly select 2 fish what is the probabilty that they are both goldfi

svlad2 [7]

2/40 I thinks asdfsdf

4 0

4 years ago

what is the value of y in the solution to the following system of equations? (5 points) 2x y = −4 5x 3y = −6

TiliK225 [7]

2x+y=-4
5x+3y=-6

multiply first equaton by -5 and second by 2 then add them

-10x-5y=20
<u>10x+6y=-12 +</u>
0x+1y=8

y=8

the y value is 8

7 0

4 years ago

The newsstand at the corner of Manilla Avenue and GreenTree Rd. in GreenTree sells the daily edition of The Pittsburgh Press. Th

Pavlova-9 [17]

Answer:

1 - NORM.DIST(625, 600, 15 ,TRUE)

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In Excel:

We use the norm.dist command.

NORM.DIST(x, mean, standard_dev ,cumulative)

x is the tested value, mean and standard_dev are the mean and the standard deviation, while cumulative we use true to find a probability of a value lower than x, so for a value higher than x, we use:

1 - NORM.DIST(x, mean, standard_dev ,TRUE)

Mean of 600 copies and a standard deviation of 15 copies.

mean = 600, standard_dev = 15

You want to find the probability of selling more than 625 newspapers on any given day.

x = 625

What is the Excel Command

1 - NORM.DIST(625, 600, 15 ,TRUE)

6 0

3 years ago