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Rudik [331]
2 years ago
13

Add. 5x2 - 5x+1 + 2x2 +9x-6

Mathematics
1 answer:
kramer2 years ago
3 0

Answer:

4x+9

Step-by-step explanation:

10-5x+1+4+9x-6

9x-5x+10+1+4-6

4x+9

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The diameter of a circle is 14 in. Find its area in terms of <br> π<br> π.
maksim [4K]

Answer:

49π in²

Step-by-step explanation:

Step 1: Find the radius.

  • To find radius given diameter, just divide the diameter by 2: \frac{14}{2}
  • 14/2 = 7, so the radius is 7.

Step 2: Apply area of circle formula.

  • The formula to find the area of a circle is πr², where r = radius.
  • Now, plug in the value of r: π(11)².

Step 3: Simplify.

  • π(11)²
  • π(121)
  • 121π

Since we're finding the area in terms of pi, we don't have to multiply 121 by pi, so the answer is 49π in².

4 0
2 years ago
HELP PLEASE I NEED HELP
Vesna [10]

C. \: 8 \sqrt{3}✅

Step-by-step explanation:

\sqrt{192}  \\  =  \sqrt{2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 3}  \\  =   \sqrt{ {2}^{2} \times  {2}^{2} \times  {2}^{2}    \times 3}  \\ =  \sqrt{ {8}^{2} \times 3 }    \\ =  8\sqrt{3}

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

4 0
3 years ago
A friend gives you two baseball cards for your birthday. Afterward, you
lora16 [44]

Answer:

The slope is 4x while the y-intercept os 2.This equation represents starting with 2 and adding 4x cards each week.

4 0
2 years ago
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What the solution for CED
ElenaW [278]
Answer: 58 degrees
Explanation: 180-122=58
7 0
2 years ago
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Andros has an oil fired heating system. In 30 days period he used a full tank of oil at a constant rate per day . At a different
Alexandra [31]

Answer:

90 days

Step-by-step explanation:

Let the rate per day for the 30 days period be x

Given that the rate drops to 1/3 of the rate used in 30 days period, it means that the new rate

= 1/3 x

If at a rate of x, the full tank runs for 30 days

at a rate of 1/3 x, the full tank would run for

= x/ (1/3 x) * 30 days

= 3 * 30 days

= 90 days

At the new rate, the full tank of oil will last for 90 days

8 0
2 years ago
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