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mart [117]
3 years ago
5

-K2 – (4k - 6n) + 9n; k = - 1 and n= - 4

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
7 0

Answer:

The simplified answer of the given equation is -57.

Step-by-step explanation:

For this problem, we are given values for our variables.

<em>k = -1</em>

<em>n = -4</em>

So, let's plug these numbers into our expression so we can easily solve it.

-(-1)² - (4(-1) - 6(-4)) + 9(-4)

Simplify your parentheses.

-(-1)² - (-4 + 24) - 36

-(-1)² - 20 - 36

Now, simplify your exponents.

-1 - 20 - 36

Combine -1 and -20.

-21 - 36

Now, subtract -21 from 36.

-57

MakcuM [25]3 years ago
7 0

Answer:

-18

)())()()()()()()( ;)

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A veterinarian knows that the supplement glucosamine is beneficial for dogs’ joints. He wants to determine if a supplement with
Alborosie

Answer:

Colour of coat

Step-by-step explanation:

We are told that the veterinarian wants to determine if a supplement with both glucosamine and chondroitin would be more beneficial than glucosamine alone for dogs’ joint health.

In randomized block design, blocking is the arrangement of experimental units in groups known as blocks which are similar to one another.

Looking at the options given, by blocking on size, age or dog breed, the source of variability which led to the inconclusiveness initially would be controlled which then leads to a greater accuracy in result. Since there can be big, medium and small size of dog: there can be older or younger dogs: there can be different type of dog breeds as well. All these can likely affect the results of the experiment.

Whereas, blocking on colour of coat is not an appropriate variable because it has no effect on the experiment.

4 0
3 years ago
A kite is flying 79 ft off the ground, and its string is pulled taut. The angle of elevation of the kite is 50°. Find the length
Art [367]

Answer:

If the kite has an 11 ft line attached to it and it casts an 8 feet shadow, we will have a rectangle triangle (see picture below).

To find the height x of the kite, we can apply the Pythagorean theorem.

x² = 11² - 8²

x² = 121 - 64

x² = 57

x =√57

Step-by-step explanation:

4 0
2 years ago
URGENT
Lynna [10]
The answer would be A. 3 1/2.
Explanation
First find a common denominator, which would be 6. You times the top number the same amount of times you times the bottom number to get the common denominator, so now it's 1 4/6 + 1 5/6 now you add, 1+1=2, now you need to add 4 and 5 together, bc they are the top numbers of the fraction. That would be 9 so now the problem is 2 9/6, now we simplify the fraction so that it is 3 3/6 now that simplifies into 1/2 so the answer is 3 1/2
4 0
3 years ago
PLEASE HELP D:
garik1379 [7]

Answer:

  • C. 40 ft²

Step-by-step explanation:

<u>Triangle area formula:</u>

  • A = bh/2, where b- base, h- height

<u>We have:</u>

  • b = 8 ft, h = 10 ft

<u>The area is:</u>

  • A = 8*10/2 = 40 ft²

Correct choice is C

4 0
3 years ago
-2 divided by 15/2 in fraction form
BigorU [14]

Answer: -4/15

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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