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Hunter-Best [27]
2 years ago
15

What number should be added to this expression to change it into a perfect square trinomial?

Mathematics
2 answers:
Reptile [31]2 years ago
4 0
C. 4 makes this equation a perfect trinomial
Licemer1 [7]2 years ago
3 0
C. 4 because 4 is a perfect square, as well as x^2 and 4x


I hope that helps!
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Explain how to find the surface area of a can of fruit with a height of 80 mm and a diameter of 60 mm. Give the area in your exp
sdas [7]

Answer:

S=6600\pi \text{ mm}^2

S\approx 20724 \text{ mm}^2

Step-by-step explanation:

A can of fruit is geometrically a cylinder.

We are talking about the <u>surface area of a cylinder</u>:

S=2\pi rh+2\pi r^2

\pi \approx 3.14

r: \text{radius}

h: \text{height}

Factoring, we have:

S=2\pi r (h+r)

Calculating the surface area of the can of fruit:

S=2\pi (30) (80+30)

S=2\pi (30) (110)

S=6600\pi

S\approx 20724 \text{ mm}^2

4 0
3 years ago
Read 2 more answers
Last year, the school library had a total of x books. Over the summer, the library acquired another 42 books and now has a total
natta225 [31]
B.x + 42 = 2,402 letter b
4 0
3 years ago
Suppose the radius of a circle is 2. What is its circumference?
Scilla [17]

Answer:

12.57

Step-by-step explanation:

The formula to solve the circumference of a circle is:

2 x PI x R (radius)

=> 2 x PI x 2

=> 4 PI or 12.57

4 0
3 years ago
According to scientific research, the probability that a person between the ages of 20 and 25 having high blood pressure, is onl
boyakko [2]

Answer:

<h2>The probability is {\frac{83}{100} }^9 \times \frac{17}{100} + {\frac{83}{100} }^8 \times {\frac{17}{100} }^2 + {\frac{83}{100} }^{10}.</h2>

Step-by-step explanation:

The probability of having high blood pressure is 17%.

We need to find the probability of 2 or fewer have high blood pressure.

Possibility 1: No one have high blood pressure.

The probability is {\frac{100 -17}{100} }^{10} = {\frac{83}{100} }^{10}.

Possibility 2: Only one have high blood pressure.

The probability is {\frac{83}{100} }^9 \times \frac{17}{100}.

Possibility 3: 2 among the 10 have the high blood pressure.

{\frac{83}{100} }^8 \times {\frac{17}{100} }^2.

Any of the possibilities can happen.

Hence, the required probability is {\frac{83}{100} }^9 \times \frac{17}{100} + {\frac{83}{100} }^8 \times {\frac{17}{100} }^2 + {\frac{83}{100} }^{10}.

4 0
3 years ago
Plz, Help!!!!!!!!! Thank You
quester [9]
The second choice my dude
5 0
2 years ago
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