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Alex17521 [72]
3 years ago
5

PLS HELP PLS PLS PLS I NEED HELP I GIVE BRAINEST

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0

Answer:

D

Step-by-step explanation:

x-4 > 15

x> 19

hope this helps

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Three numbers add up to 210. The second number is 10 more than the first and the third number is 3 times the first. Find the num
svp [43]

Answer:

I. First number, a = 40.

II. Second number, b = 50.

III. Third number, c = 120.

Step-by-step explanation:

Let the three numbers be a, b and c respectively.

Given the following data;

Translating the word problem into an algebraic equation, we have;

a + b + c = 210

b = a + 10

c = 3a

Substituting the value of b and c into the equation, we have;

a + a + 10 + 3a = 210

5a + 10 = 210

5a = 210 - 10

5a = 200

a = 200/5

<em>a = 40</em>

To find the value of b;

b = a + 10

b = 40 + 10

<em>b = 50</em>

To find c

c = 3a

c = 3*40

<em>c = 120</em>

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3 years ago
1. Use a protractor to try to draw each triangle. Which of these three triangles is impossible to
Rus_ich [418]

answer:

C a triangle with one measures 90° and another angle measures 100°

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2 years ago
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gogolik [260]
35
“Negative times a negative is a positive”
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2 years ago
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35,000 as a percent
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Move the deciaml 2 places to left

35000.
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2 years ago
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The solution for x2 + 2x + 8 ≤ 0 is
Marina CMI [18]

Answer:

Please use " ^ " for exponentiation: x^2 + 2x + 8 ≤ 0.

Let's solve this by completing the square:

x^2 + 2x + 8 ≤ 0 => x^2 + 2x + 1^2 - 1^2 + 8 ≤ 0. Continuing this rewrite:

(x + 1)^2 + 7 ≤ 0

Taking the sqrt of both sides: (x + 1)^2 = i*sqrt(7)

Then the solutions are x = -1 + i√7 and x = -1 - i√7

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5 0
2 years ago
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