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3 years ago

What is the product of all values of b that satisfy (b-2)(b-8) +4= 0 ?

Mathematics

1 answer:

pentagon [3]3 years ago

6 0

Answer:

Step-by-step explanation:

(b-2)(b-8)+4=0

b^2-10b+16+4=0

b^2-10b+20=0

Product of roots is given by c/a=20. So the answer is 20

You might be interested in

What is the value of a in the equation 3a+b=54, when b=9?

insens350 [35]

3a+9=54

3a+9-9=54-9

3a= 45

a=15

Check answer:

3(15)+9=54

54=54

Answer is a=15

3 0

3 years ago

Terry is making 5 hat and scarf sets. Each scarf requires 3 yards of material and each hat requires 18 inches of material. How m

Delvig [45]

5*18 = 90
5*3= 15

90+15= 105

4 0

3 years ago

Really need help, 20 points!

babymother [125]

I'm sorry ninth grade slow learner

4 0

4 years ago

A diving board is 10 feet above the surface of the water. At time t = 0, the board propels Chris upward at a rate of 12 feet per

Art [367]

Answer:

Chris will take 0.75 seconds to return to his starting height of 10 feet.

Step-by-step explanation:

Let the height of Chris be represented by $h(t) = -16\cdot t^{2}+12\cdot t +10$ , where $h(t)$ is the height in feet and $t$ , the time in seconds. First, we equalize the formula to a height of 10 feet and simplify the resulting expression, that is:

$-16\cdot t^{2}+12\cdot t +10 = 10$

$-16\cdot t^{2}+12\cdot t = 0$

Then, we simplify the expression by algebraic means:

$-16\cdot t\cdot \left(t-\frac{3}{4} \right) = 0$

Roots of the polynomial are, respectively:

$t = 0\,s\,\lor \,t = 0.75\,s$

First root represents the initial height of Chris, whereas the second one represents the instant when Christ returns to the same height above the surface of the water. Hence, Chris will take 0.75 seconds to return to his starting height of 10 feet.

5 0

3 years ago

the seed and skin of a typical avacado is about 30%-40% of the avocados weight. for an 8-ounce avocado, how many ounces of edibl

wolverine [178]

Answer:

Edible fruit amount is 4.8 ounce to 5.6 ounce

Step-by-step explanation:

Given as

The seed and skin of avocados is about 30%-40%

And the weight of avocados is 8 ounce

So, the weight of seed and skin is about 30% of 8 to 40% of 8

i.e 2.4 ounce to 3.2 ounce

Then the edible fruit is about 60% to 70%

i.e 60% of 8 to 70% of 8

Thus edible fruit of avocados = 4.8 ounce to 5.6 ounce Answer

5 0

4 years ago