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matrenka [14]
3 years ago
7

Solving special systems {y=1/2x+4 {-1/2x+y=-5

Mathematics
1 answer:
ryzh [129]3 years ago
7 0

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = \frac{1}{2} x + 4 → (1)

- \frac{1}{2} x + y = - 5 → (2)

Substitute y = \frac{1}{2} x + 4 into (2)

- \frac{1}{2} x + \frac{1}{2} x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

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Each interior angle of a regular polygon is 140°.Find the number of sides​
castortr0y [4]

Step-by-step explanation:

Each interior angle=140°

(n-2)180°/n=140°

180°n-360°/n=140°

180°n-360°=140°n

180°-140°=360°

40°n=360°

n=360°/40°

n=9

Hence, the number of sides of the polygon is 9.

It is nonagon .

8 0
3 years ago
25+12 1/2 + 61/4+31/8+19/16+25/32=
Len [333]
Make them all have the same denominator
32

25+12 16/32+488/32+124/32+38/32+25/32

Add all of the numerators... to get 691/32+1184/32
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4 0
3 years ago
A grocery store gives away a $10 gift card to every 25th customer and a $20 gift card to every 60th customer. a. Which customer
steposvetlana [31]
To find the answer you need to find the common factor of numbers 25 and 60

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60,120,180,240,300

The 300th customer will receive both cards, and a total of $220 and 17 gift cards were given away.
4 0
4 years ago
5
KonstantinChe [14]

Answer:

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7 0
3 years ago
Which of the above polynomials is a 5th degree trinomial?
diamong [38]
Easy

5th degree means highest power is 5 so must have x^5

trinomial means 3 terms

A. trinomial, highes power is 5, check
b. trinomial, highest power is 3, nope
c. not a trinomial, highest power is 3, nope
d. not a trinoial, highest power is 5, nope

answer is A
7 0
3 years ago
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