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3 years ago

when three different numbers are chosen from the set {-3,-2,-1,4,5) and multiplies the greatest possible product is

1 answer:

5 0

1. We cannot pick both of the positive numbers 4 and 5 because the third one would be negative, and the overall product negative.

2. So we pick 5, the largest of (4, 5) and 2 negative numbers

3. Since the multiplication of the 2 negative numbers is positive, we pick the ones with larger absolute value, so -3 and -2

Answer: 5*(-3)*(-2)=5*6=30

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In the diagram below, what is the value of x? A. 3 B. 13 C. 177 D. 90

Elena-2011 [213]

The answer is A. 3° 87+90= 177+ 3= 180°

5 0

2 years ago

Enter the equation of the circle described below. Center (5, 2), radius = 3

riadik2000 [5.3K]

For a circle with center (h,k) and radius, r
the equaiton is
$(x-h)^2+(y-k)^2=r^2$

so

center=(5,2), radius=3

$(x-5)^2+(y-2)^2=3^2$
$(x-5)^2+(y-2)^2=9$

6 0

2 years ago

Read 2 more answers

Plz help me I can't figure it out

lys-0071 [83]

Answer:

$\sqrt{500}$

Step-by-step explanation:

when a value is outside of the root, then you can square it and put it back in. After you put it back in, you need to multiply it by the number that is remaining

In this case, you would square 10 which equals 100, and put it back into the root and multiply 100 by 5.

100x5=500

Therefore, the answer is A, root 500

7 0

2 years ago

Ramon kept track of the number of hours that he spent playing the tuba each week for several weeks. He spent 1, 3,5, 4, and 7 ho

goldfiish [28.3K]

Answer:b

Step-by-step explanation:

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8 0

2 years ago

Read 2 more answers

Mr. Robinson traveled to a city 210 miles from his home to attend a meeting. Due to car trouble, his average speed returning was

Mnenie [13.5K]

Answer: the average speed at which he traveled to the city is 74.8 mph

Step-by-step explanation:

Let x represent the rate or speed at which he traveled to the city. Due to car trouble, his average speed returning was 9 mph less than his speed going. It means that the speed at which he returned is (x - 9) mph.

Time = distance/speed

Assuming the distance travelled to and from the city is the same ie 210 miles, then

Time spent in travelling to the city is

210/x

Time spent in travelling back from the city is

210/(x - 9)

If the total time for the round trip was 6 hours, it means that

210/x + 210/(x - 9) = 6

Multiplying both sides of the equation by x(x - 9), it becomes

210(x - 9) + 210x = 6x(x - 9)

210x - 1890 + 210x = 6x² - 54x

6x² - 54x - 210x - 210x + 1890 = 0

6x² - 474x + 1890 = 0

We would apply the general formula for solving quadratic equations which is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 6

b = - 474

c = 1890

Therefore,

x = [- - 474 ± √(- 474² - 4 × 6 × 1890)]/2 × 6

x = [474 ± √(224676 - 45360)]/12

x = [474 ± √179316]/12

x = (474 + 423.5)/14 or x = (474 - 423.5)/12

x = 74.8 or x = 4.2

Checking,

For x = 74.8

210/74.8 + 210/(74.8 - 9) = 6

= 2.8 + 3.2 = 6

Therefore, x = 74.8 mph

4 0

2 years ago