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kenny6666 [7]
3 years ago
9

Solve for x. x2 + 7x + 10 = 0

Mathematics
1 answer:
algol133 years ago
6 0
The answer is negative 80 or like this -80
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four cards numbered 1, 5, 8, and 9 are placed in a bag. A card is drawn at random and then replaced. Then a card is drawn at ran
Vadim26 [7]

Answer:

1/16

Step-by-step explanation:

Four cards numbered (1, 5, 8,9)

Given the sample space S= 4

1.The first selection with replacement

Probability of picking a 9= 1/4

2. Second selection, probability of picking a 9= 1/4

Hence the probability that both cards drawn have the number 9.

Is = (1/4)*(1/4)= 1/16

6 0
3 years ago
A rectangular pan has a length that is 4/3 the width. The total area of the pan is 432 in.2. What is the width of the cake pan?
Maru [420]
<span>the width of the cake pan can be found with the following formula
area = W x L=</span>432 in.2<span>
but L= 4/3W
so we have </span>
area = W x 4/3W=4/3W²=<span>432 in.2, and </span><span>W²=<span>(3/4)x 432 in.2, and W=18 in</span> </span>


3 0
3 years ago
There are 32 students in Joe's class. Of the 32 students, 8 students ride their bikes to school, 5 walk to school, 4 ride to sch
vampirchik [111]

Answer:

5/32 (aka option A) should be the correct answer!

Step-by-step explanation:

ok so... its 5/32 who walks to school!

since there are 5 students who walked to school, and 32 students are in the class, 5/32 should be the correct answer!

3 0
2 years ago
Read 2 more answers
2. A record store is going out of business and sold any
liubo4ka [24]

Answer:

A)  c +  CD = 20

B) 6c + 12CD = 192

Multiplying equation A by -6 we get:

A) -6c -6CD = -120

B) 6c + 12 CD = 192

Adding the equations we get

0 + 6 CD = 72

There are 12 CD's and

c + 12 = 20

There are 8 cassettes

Step-by-step explanation:

7 0
2 years ago
A swimming pool is 15 ft wide, 25 feet long and 6 feet deep. how much paint is needed to cover the interior of the pool
Brilliant_brown [7]
2 wide walls (15x6)x2=180 square feet
2 long walls (25x6)x2=300 square feet
ground 25x15=375 square feet

sum them all up and you get
375+300+180=855

you need paint for 855 square feet
4 0
3 years ago
Read 2 more answers
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