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vazorg [7]
3 years ago
5

What is the factored form of b2 – 4b – 32?

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

  (b – 8)(b + 4)

Step-by-step explanation:

The signs of the binomial constants must be different in order for their product to be -32.

The one with the larger magnitude must be negative in order for their sum to be -4. The only viable choice is (b -8)(b +4).

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Plz do both plz plz plz
vlada-n [284]

Answer:

3. 18 meters.

4. A= 6. 25cm^2  and P= 10 cm

5. 16 feet and 3 feet.

Step-by-step explanation:

3. base= 2 (A/h)

2 (72/8) = 18

4. A= side^2

2.5^2 = 6.25

P= 4 sides

2.5 x 4= 10

5. 16x3= 48

6 0
3 years ago
Can someone please answer this question<br> Giving brainleist!
inna [77]

Answer:

a) 9000

b) 40

c) 630

d) 125

5 0
3 years ago
3 • X = 5.25.<br> What is X?
Archy [21]
Your answer will be x=1.75
3 0
3 years ago
Read 2 more answers
The graph of f ′ (x), the derivative of f(x), is continuous for all x and consists of five line segments as shown below. Given f
Nataliya [291]

The maxima of f(x) occur at its critical points, where f '(x) is zero or undefined. We're given f '(x) is continuous, so we only care about the first case. Looking at the plot, we see that f '(x) = 0 when x = -4, x = 0, and x = 5.

Notice that f '(x) ≥ 0 for all x in the interval [0, 5]. This means f(x) is strictly increasing, and so the absolute maximum of f(x) over [0, 5] occurs at x = 5.

By the fundamental theorem of calculus,

\displaystyle f(5) = f(0) + \int_0^5 f'(x) \, dx

The definite integral corresponds to the area of a trapezoid with height 2 and "bases" of length 5 and 2, so

\displaystyle \int_0^5 f'(x) \, dx = \frac{5+2}2 \times 2 = 7

\implies \max\{f(x) \mid 0\le x \le5\} = f(5) = f(0) + 7 = \boxed{13}

8 0
3 years ago
In 2000 the number of students enrolled at Arlington County day school was 823 students in 2010 the population was approximately
RoseWind [281]

Answer:

enrollment decreases by 14.34%.

Step-by-step explanation:

Given that number of students enrolled in 2000 = 823

Given that number of students enrolled in 2010 = 705

705 is less than 823 so that means number of students enrollment is decreasing.


Decrease = 823-705 = 118

Percent decrease is given by formula:

Percent =\frac{part}{whole}\cdot100 =\frac{118}{823}\cdot100= 14.3377885784

which is approx 14.34%.

Hence final answer is that enrollment decreases by 14.34%

5 0
3 years ago
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