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2 years ago

AREA UNDER A CURVE will mark brainiest

Mathematics

1 answer:

Andrej [43]2 years ago

7 0

Answer: 3 units²

Step-by-step explanation: The area of a triangle is 1/2 (Bh); 1*1= 1 (1/2)= 1/2 units². For the other shape, I cut it into a square and another triangle. The square area is length times width; 1*1= 1 units². The final triangle is 3*1= 3*1/2= 1.5 units². Lastly you add all the areas together: 1.5+0.5+1= 3 units²

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Please help me thank you

Reptile [31]

Answer:

$y \geqslant \frac{1}{4} x - 1$

$4 \times y \geqslant \frac{1}{4} \times 4x - 4 \times 1$

$4y \geqslant x - 4$

$4y + x \geqslant - 4$

$5yx \geqslant - 4$

$yx \geqslant - 4 - 5$

$yx \geqslant - 9$

you're welcome I think I don't really know whether I'm finding x or y or yx

7 0

3 years ago

Alexandra is two years older than brad. cecilia is three years younger than alexandra. all three ages added together gives a tot

MatroZZZ [7]

Let us say that:

x = age of brad

x + 2 = age of Alexandra

(x + 2) – 3 = age of Cecilia = x – 1

We are also given that:

x + x + 2 + x – 1 = 37

solving for x:

3x + 1 = 37

3x = 36

x = 12 = age of brad

x + 2 = 14 = age of Alexandra

x – 1 = 11 = age of cecilia

4 0

3 years ago

Is √6/8. rational or irrational?

Ipatiy [6.2K]

<h2>Answer:</h2>

The number is irrational.

<h2>Step-by-step explanation:</h2>

<h3>1. Convert to decimal.</h3>

$\sqrt{\frac{6}{8} } =\sqrt{0.75} =0.8660254038...$

<h3>2. Conclude.</h3>

Since this number shows to have infinite decimal figures, it cannot be represented as the ratio of 2 integers. Hence, the number is irrational.

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Note. In case the number expressed in the question was $\frac{\sqrt{6} }{8}$ , the answer would still be irrational, for the same reasons explained above.

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Learn more about the classification of numbers here:

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4 0

2 years ago

The sum of two numbers 10 and the difference of those two numbers is 18 (use f to represent the first number and s to represent

PtichkaEL [24]

F + s = 10

| f - s | = 18

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This means that:

f = 10 - s

And also that:

| f - s | = 18

(f-s)²=18²

f²- 2sf + s² = 324

But f=10-s

So...

(10-s)² - 2s(10-s) + s² = 324

(10-s)(10-s) - 20s + 2s² + s² = 324

100 - 20s + s² - 20s + 2s² + s² = 324

4s² - 40s + 100 = 324

4s² - 40s + 100 - 324 = 0

4s² - 40s - 224 = 0

1/4 * (4s² - 40s - 224) = 1/4 * 0

s² - 10s - 56 = 0

(s-14)(s+4)=0

So s can be either 14 or -4.

When s = 14, f = -4.

When s = -4, f = 14.

5 0

3 years ago

1/2^-2 2^-3 -4^5 What is the value of for x = 2 and y=-4?

Vinil7 [7]

value of x=2 is-8 and y=-4 is -1024

6 0

3 years ago