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evablogger [386]
2 years ago
5

If x+y=8 find the value of y when x=-1

Mathematics
2 answers:
lana [24]2 years ago
6 0
X + y = 8  

-1 + y = 8
y = 8 + 1
y = 9
victus00 [196]2 years ago
3 0
Plug -1 into the equatiop and solve for y.
-1+y=8
add +1 on both sides
y = 9
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A restaurant serves custom-made omelets, where guests select meat, cheese, and vegetables to be added to their omelet. There are
FrozenT [24]

Answer:

15 possible combinations

Step-by-step explanation:

Given

Vegetables = 6

Selection = 2

Required

Determine the possible number of combinations

The question emphasizes on "selection" which means "combination".

So; To answer this question, we apply the following combination formula:

^nC_r = \frac{n!}{(n-r)r!}

In this case:

n = 6

r = 2

The formula becomes:

^6C_2 = \frac{6!}{(6-2)!2!}

^6C_2 = \frac{6!}{4!2!}

^6C_2 = \frac{6*5*4!}{4!2*1}

^6C_2 = \frac{6*5}{2}

^6C_2 = \frac{30}{2}

^6C_2 = 15

<em>Hence, there are 15 possible combinations</em>

7 0
3 years ago
Which rule yields the dilation of the figure QRST centered at the origin?
denis-greek [22]

A) (x, y) → (3x, 3y)

<h2>Explanation:</h2>

When you dilate an object, you enlarge or reduce the size of it. To do this, we need a scale factor which allows us to make the object larger or smaller depending on the value of that factor. Let's call this factor as k, then it is true that:

  • If k > 1, the object will be larger than the original one.
  • If k < 1, the object will be smaller than the original one.

If the dilation is performed centered at the origin, then corresponding points of the original and dilated figures will be connected by straight lines, being the center of dilation the point where all the lines meet.

The only option that meets this requirement is:

A) (x, y) → (3x, 3y)

Whose scale factor is k = 3 making the dilated figure larger than the original one.

<h2>Learn more:</h2>

Dilation: brainly.com/question/10946046

#LearnWithBrainly

5 0
3 years ago
Anybody help me? please
liq [111]

Answer:

0 because we can't have Repetitious x in function.

6 0
3 years ago
According to the order of operations, which of the following operations should be completed first in the following expression?
Kamila [148]

Answer:

Step-by-step explanation:

simplify (5-3)

PEMDAS= parentheses- e -MULTIPLY- DIVIDE - ADD- SUBTRACT

2(5-3)2+62

(2*2)2+62

8+62

70

4 0
3 years ago
Find the length and width of a rectangle with maximum area that has a perimeter of 9P units.
scoundrel [369]

Answer:

l = 9p/4 , l = 9p/4

Step-by-step explanation:

Given:

Perimeter = 9p

Find:

Length and width

Computation:

Assume;

Length = l

Perimeter = 2(l+b)

9p/2 = l+w

w = 9p/2 - l

Area = lb

Area = l(9p/2 - l)

Using differentiation

l = 9p/4

w = 9p/2 - l

w = 9p/2 - 9p/4

w = 9p/4

4 0
3 years ago
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