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saul85 [17]
4 years ago
7

Plzz help see the attachment you will get 15 points

Mathematics
2 answers:
stepladder [879]4 years ago
5 0

Answer:

a, b & d

Step-by-step explanation:

y - 10 = 2x

Divide by 2

½y - 5 = x

½y = x + 5

Basically both equations represent the same line, so infinite solutions

(0,10) is a solution

10 - 10 = 2(0)

0 = 0

(1,12) is a solution

12 - 10 = 2(1)

2 =

(2,-6) is not a solution

-6 - 10 = 2(2)

-16 = 4

(-5,0) is a solution

0 - 10 = 2(-5)

-10 = -10

Makovka662 [10]4 years ago
3 0

Answer:

A, B, and D

Step-by-step explanation:

Let's put all the answer choices in for x and y in both equations:

A) x = 0, y = 10

10 - 10 = 2 * 0 --> 0 = 0, which works

1/2 * 10 = 0 + 5 --> 5 = 5, which works

So, A is correct

B) x = 1, y = 12

12 - 10 = 2 * 1 --> 2 = 2 which works

1/2 * 12 = 1 + 5 --> 6 = 6, which works

So, B is correct

C) x = 2, y = -6

-6 - 10 = 2 * 2 --> -16 = 4, which doesn't work

So, C is incorrect

D) x = -5, y = 0

0 - 10 = 2 * -5 --> -10 = -10, which works

1/2 * 0 = -5 + 5 --> 0 = 0, which works

So, D is correct

Thus, the answers are A, B, and D.

Hope this helps!

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Dogs are inbred for such desirable characteristics as blue eye color, but an unfortunate by-product of such inbreeding can be th
sesenic [268]

Answer:

The probability that the dogs are blue eyed and deaf is 13.02%.

Step-by-step explanation:

We are given the following information in the question:

P(Blue eyes) = 31%

P(Deaf) = 38%

P(Deaf | Blue eyes) = 42%

Formula for conditional probability:

P( A|B) = \displaystyle\frac{P(A \cap B)}{P(B)}

Now, let A be the event where the dog is deaf and B be the the event where dog is blue eyed.

P( \text{ Deaf}|\text{Blue eyes}) = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{P(\text{Blue eyes})}\\\\0.42 = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{0.31}\\\\P( \text{Deaf} \cap \text{Blue eyes}) = 0.42\times 0.31 = 0.1302 = 13.02\%

Hence, the probability that the dogs are blue eyed and deaf is 13.02%.

6 0
3 years ago
Help please. No links
alekssr [168]

Answer:

C

Step-by-step explanation:

The question is asking which one is equal to the absolut value of 12. The absolute value of -12 equals 12, so it is the same as the absolute value of 12.

3 0
3 years ago
What is the sine ratio for ∠C?
KatRina [158]

Answer:

B & C

Step-by-step explanation:

1.

sin C = \frac{AB}{AC} = \frac{12}{13}

2.

cosC=\frac{BC}{AC} = \frac{6}{10}

3 0
3 years ago
Read 2 more answers
1. a. A cube’s volume is 512 cubic units. What is the length of its edge?
Vanyuwa [196]

Answer:

a) The length of its edge is 8 units.

b) The volume of the sphere is approximately 268.083 cubic units.

c) The fraction of the cube that is taken up by the sphere is 0.524, whose equivalent in percentage form is 52.4 %.

Step-by-step explanation:

a) The volume of a cube (V_{c}), measured in cubic units, is defined by the following expression:

V_{c} = L^{3} (1)

Where L is the side length of the cube, measured in units.

If we know that V_{c} = 512\,u^{3}, then the length of its edge is:

L = \sqrt[3]{V_{c}}

L = 8\,u

The length of its edge is 8 units.

b) The volume of a sphere (V_{s}), measured in cubic units, that fits snugly inside this cube is defined by:

V_{s} = \frac{\pi}{6}\cdot L^{3} (2)

If we know that L = 8\,u, then the volume of the sphere is:

V_{s} \approx 268.083\,u^{3}

The volume of the sphere is approximately 268.083 cubic units.

c) The fraction of the cube taken by the sphere is the ratio of the volume of the sphere to the volume of the cube. That is to say:

r = \frac{V_{s}}{V_{c}}

If we know that V_{c} = 512\,u^{3} and V_{s} \approx 268.083\,u^{3}, then the fraction of the cube that is taken up by the sphere is:

r = 0.524

The result in percentage form is calculated by multiplying the result above by 100.

\% r = 52.4\,\%

The fraction of the cube that is taken up by the sphere is 0.524, whose equivalent in percentage form is 52.4 %.

6 0
3 years ago
The volume of a fish tank is 60 cubic feet. If the density is 0.3 fish over feet cubed, how many fish are in the tank? 200 9 100
FinnZ [79.3K]

Answer:

There are 18 fish in the fish tank.

Step-by-step explanation:

The volume of a fish tank is 60 cubic feet: V = 60 ft³.

The density is 0.3 fish over feet cubed. d = 0.3 fish/ft³

We can find the number of fish using proportions. The required conversion factor is 0.3 fish/ft³. The number of fish is:

60 ft³ × (0.3 fish/ft³) = 18 fish

There are 18 fish in the fish tank.

5 0
3 years ago
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