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natta225 [31]
2 years ago
14

Please write an expression if u do all correct I give brainliest

Mathematics
2 answers:
koban [17]2 years ago
8 0
1.2 + 2.3, hope this helps!
Snezhnost [94]2 years ago
7 0

Answer:

1.2 + 2.3

Step-by-step explanation:

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A pyramid has a square base with sides 8" and a slant height of 5". total area =
Vinil7 [7]
The answer is 224 sq units
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3 years ago
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HELP WITH THESE QUESTIONS PART 2.
polet [3.4K]

Answer: (a) IV (b) positive (c) \frac{\pi}{4} (d) C (e) \sqrt{2}

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

a) \frac{15\pi}{4} - \frac{8\pi}{4} = \frac{7\pi}{4}, which is located in Quadrant IV <em>per the Unit Circle.  </em>

b) sec is \frac{1}{cos}. Cos is the x-coordinate.  The x-coordinate inQuadrant IV is positive.

c) the reference angle is the angle from \frac{7\pi}{4} to 2π = \frac{\pi}{4}

d) since the angle is below the x-axis and the reference angle is\frac{\pi}{4}, then the angle is equal to -sec(\frac{\pi}{4})

e) sec = \frac{1}{cos}   ⇒   sec \frac{7\pi}{4} = \frac{2}{\sqrt{2} } = \frac{2}{\sqrt{2} }(\frac{\sqrt{2}} {\sqrt{2}}) = \frac{2\sqrt{2} }{2} = \sqrt{2}

**********************************************************

Answer: (a) \frac{3\pi}{2} (b) (0, -1) (c) A (d) -1

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

a) \frac{11\pi}{2} - \frac{4\pi}{2} = \frac{7\pi}{2} - \frac{11\pi}{2} = \frac{3\pi}{2}

b) \frac{3\pi}{2} is on the Unit Circle at (0, -1)

c) sin = \frac{opposite}{hypotenuse} which equals \frac{y}{r} on the Unit Circle.

d) sin is the y-coordinate. sin (\frac{3\pi}{2}) = -1

6 0
3 years ago
NEED HELP ASAP!<br> Subtract.<br> (4x^2+8x−2)−(2x^2−4x+3)<br>Answer in standard form
AlekseyPX
(4x^2+8x-2)-(2x^2-4x+3)\\\\=4x^2+8x-2-2x^2+4x-3\\\\=(4x^2-2x^2)+(8x+4x)+(-2-3)\\\\=\boxed{2x^2+12x-5}
4 0
3 years ago
4. Liam can work at most 20 hours a week but he needs to earn at least $125. His dog-walking job pays
Oxana [17]

Two possible solutions are: (4.5, 8.5) and (8, 6.3)

<h3>How to graph the inequality?</h3>

Let x represents hours dog walking and y represents hours washing cars.

So, we have:

Earnings = Rate of dog walk * x + Rate of car wash * y

This gives

Earnings = 7x + 11y

He wants to earn at least $125.

This means that:

7x + 11y ≥ 125

See attachment for the graph of the inequality

From the attached graph, two possible solutions are: (4.5, 8.5) and (8, 6.3)

Read more about inequalities at:

brainly.com/question/25275758

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8 0
2 years ago
What is the value of this expression? (-2)^5
s344n2d4d5 [400]

(-2)⁵................ => (-2)(-2)(-2)(-2)(-2)...........=> -32.


recall, minus times minus is plus, and minus times plus is minus.

8 0
3 years ago
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