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Semmy [17]
3 years ago
5

Fill in the blank 11-15 if u don’t mind

Mathematics
1 answer:
trapecia [35]3 years ago
6 0

Answer:

Step-by-step explanation:

11). centroid

12). obtuse

13). rightangled

14). perpendicular bisectors

15). AAS

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How to solve : 16=2t + 0.25 t``squar​
Marysya12 [62]

Answer:

The solutions of the equation are t = 4(√5 + 1) or 4(√5 - 1).

Step-by-step explanation:

We have to solve the given quadratic equation of single variable t.

The equation is 16 = 2t + 0.25t²

⇒ 0.25t² + 2t - 16 = 0

⇒ 25t² + 200t - 1600 = 0 {Multiplying both sides with 100}

⇒ 25t² + 200t + 400 - 400 - 1600 = 0

⇒ (5t + 20)² - 2000 = 0

⇒ (5t + 20)² - (20√5)² = 0

⇒ (5t + 20 + 20√5)(5t + 20 - 20√5) = 0

So, (5t + 20 + 20√5) = 0 or, (5t + 20 - 20√5) = 0

⇒ (t + 4 + 4√5) = 0 or, (t + 4 - 4√5) = 0

⇒ t = - 4(1 + √5) or, t = 4(√5 - 1) (Answer)

8 0
3 years ago
Four whole numbers are each rounded to the nearest 10
kirill115 [55]

9514 1404 393

Answer:

  106

Step-by-step explanation:

Each of the whole numbers could be 4 greater than the value it is rounded down to. Then the maximum original sum is ...

  90 +4 +4 +4 +4 = 106

__

<em>Example</em>

The numbers could be 14, 24, 34, 34. Their rounded values are 10, 20, 30, 30, for a total of 90. The total of the original numbers is 106.

8 0
3 years ago
Read 2 more answers
Brainliest for first person to answer
BigorU [14]

Answer:

Constant, Rate of Change is 9.

Step-by-step explanation:

Divide each and the answer is 9.

4 0
3 years ago
Today only, a sofa is being sold at a 34% discount. The sale price is $231. What was the price yesterday?
WITCHER [35]

Answer:

$309

Step-by-step explanation:

4 0
4 years ago
Doug dives from a platform that is 10 meters above water. His dive takes him 3.8 meters below the
Lynna [10]

Answer:

13.8

Step-by-step explanation:

His dive once he hits the water and goes below the surface water line is in the same direction as his dive off the platform. That's very important when you start to consider direction. So you add. Be sure and read this paragraph again.

Dive = platform + under the surface

Dive = 10 + 3.8

Dive = 13.8

4 0
3 years ago
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