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3 years ago

5.

Mathematics

1 answer:

Oliga [24]3 years ago

3 0

Answer:

B. f(2) = 63

Step-by-step explanation:

f (x) = -3x2 + 180x - 285

For this case, the first thing to do is replace the value of x = 2 in the given function to know the result.

We have to replace:

f (2) = -3 * (2) ^ 2 + 180 * (2) - 285

f (2) = 63

Answer:

the value of pa for x = 2 is:

f (2) = 63

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In total, how many students are there that play football?

ExtremeBDS [4]

Answer:

total of 25 students playing football

Step-by-step explanation:

only Football = 2

Football/Baseball = 14

Football/Tennis = 3

All = 6

Add them all: 2 + 14 + 3 + 6

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2 years ago

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Isabel put $4,000 into a saving account that pays interest monthly at a simple-interest rate of 2.5% per year. If she takes the

never [62]

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Answer:

$49.98

Step-by-step explanation:

The interest credited to Isabel's account each month is ...

I = Prt

I = $4000·(0.025)(1/12) = $8.33

If she withdraws that amount each month, the original balance is restored, and she will earn the same amount the next month.

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3 years ago

(x²-x+

Brums [2.3K]

Sorry to disappoint, but none of these answers are correct. All three limits are equal to 7.

Compute the one-sided limits:

$\displaystyle\lim_{x\to2^-}h(x)=\lim_{x\to2}(x^2-x+5)=2^2-2+5=7$

$\displaystyle\lim_{x\to2^+}h(x)=\lim_{x\to2}(x^3-1)=2^3-1=7$

Both the one-sided limits agree, so the two-sided limit has the same value,

$\displaystyle\lim_{x\to2}h(x)=7$

3 0

3 years ago

Please please help me out!!!!!!!!!

anyanavicka [17]

Answer:

y = $\frac{3}{4}$ x + $\frac{1}{4}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, - 2) and (x₂, y₂ ) = (5, 4) ← 2 points on the line

m = $\frac{4+2}{5+3}$ = $\frac{6}{8}$ = $\frac{3}{4}$ , thus

y = $\frac{3}{4}$ x + c ← is the partial equation of the line

To find c substitute either of the 2 points into the partial equation

Using (5, 4), then

4 = $\frac{15}{4}$ + c ⇒ c = 4 - $\frac{15}{4}$ = $\frac{1}{4}$

y = $\frac{3}{4}$ x + $\frac{1}{4}$ ← equation of line

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3 years ago

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(5 - 2i) + (-4 + 81) O A. 5i B. 7i O c. 1-6 D. 1 + 6

Masja [62]

Answer:

82 - 2i

Step-by-step explanation:

(5 - 2i) + (-4 + 81)

5 - 2i + 77

= 82 - 2i

5 0

3 years ago

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