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3 years ago

Please help and don't use links:)

Mathematics

1 answer:

Drupady [299]3 years ago

6 0

Transitive property

because since we AB is congruent to BC and BC is congruent to XY then AB would be congruent to XY

hope this help<33

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What is the conversion factor to convert kilometers to miles?

GREYUIT [131]

Answer:

1 kilometer = 0.621371 mile

mile = kilometer * 0.621371

Step-by-step explanation:

6 0

3 years ago

Me QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR?

maks197457 [2]

We write the equation in the form of directional.

y -1 = 6x ⇔ y = 6x + 1

y - 1 = 3x ⇔ y = 3x + 1

y - 7 = 2x - 6 ⇔ y = 2x - 6 + 7

y = 2x + 1

y - 7 = x - 2 ⇔ y = x - 2 + 7

y = x + 5

Equations cleverly arranged .

Point Q = (0,1)

b factor , not only fits the last equation

In the drawing have engraved points Q and R are tangent linear function appropriate to that point . This graphics solution . y = 3x + 1

Answer b

We check choice by the system of equations , where substitute wartoćsi points Q and R to the model equations linear function

The result of equations confirmed our choice Answer b

3 0

2 years ago

Suppose the sediment density (g/cm3 ) of a randomly selected specimen from a certain region is known to have a mean of 2.80 and

Irina18 [472]

Answer:

0.918 is the probability that the sample average sediment density is at most 3.00

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 2.80

Standard Deviation, σ = 0.85

Sample size,n = 35

We are given that the distribution of sediment density is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling:

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.85}{\sqrt{35}} = 0.1437$

P(sample average sediment density is at most 3.00)

$P( x \leq 3.00) = P( z \leq \displaystyle\frac{3.00 - 2.80}{0.1437}) = P(z \leq 1.3917)$

Calculation the value from standard normal z table, we have,

$P(x \leq 3.00) = 0.918$

0.918 is the probability that the sample average sediment density is at most 3.00

4 0

3 years ago

To wash a window that is 8 meters off the ground, Stanley leans a latter against the side of the building The base of the latter

diamong [38]

Answer:

the latter is ten meters long

Step-by-step explanation:

its just ten meters long

3 0

3 years ago

Find the distance between the two points (-4,6) and (3,-7)

Lesechka [4]

Answer:

$( - 4.6) + (3. - 7) = 0.6$

8 0

3 years ago

Please help and don't use links:)​

Please help and don't use links:)