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3 years ago

NEED ASAP1.Factor the expression completely.

Mathematics

1 answer:

ella [17]3 years ago

5 0

Answer:

1. -5x(x+7)

2. the answer is A and D

3.(2x+1)(2x-3)

4. D

5. 3(x+4)(2x-3)

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A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what

butalik [34]

Answer:

1/2.

Step-by-step explanation:

Let O = an odd number and E an even number.

The possible outcomes for an odd sum are:

OOO

OEE

EOE

EEO

The probability of an odd on each pick = 50/100 = 1/2 and for an even it is also 1/2.

Prob( O O O) = 1/2*1/2*1/2 = 1/8.

The probability for the other 3 possible outcomes is also 1/8 , therefore the probability for odd number totals = 4 * 1/8

= 1/2.

5 0

4 years ago

Pls help being timed

dybincka [34]

14-6+5
13
13 is the required answer

3 0

3 years ago

Read 2 more answers

Please help mark brainliest

defon

Answer:

x.x.x.x.x.x=4

Step-by-step explanation:

the x means how many times to multiply 4 in this case your multiplying 4, 6 times to get 24

7 0

3 years ago

Read 2 more answers

Solve the equation by using trial and error method 6 - x =2

den301095 [7]

Answer:

x = 4

Step-by-step explanation:

The given equation is :

6 - x =2

Put x = 1 and see LHS is equal to RHS or not.

So,

6-1 ≠ 2

Put x = 2 and see LHS is equal to RHS or not.

So,

6-2 ≠ 2

Put x = 3 and see LHS is equal to RHS or not.

So,

6-3 ≠ 2

Put x = 4 and see LHS is equal to RHS or not.

So,

6-4=2

2 = 2

So, the solution of the given equation is x = 4.

5 0

3 years ago

The director of the town's sports programs is studying trends in enrollment over time. She finds that the number of participants

ziro4ka [17]

Answer:

The function is : $y=120(1.10)^x+120+10x$

Step-by-step explanation:

Suppose, after $x$ years, the number of participants in the town's soccer program is $y_{1}$ and in the town's street hockey program is $y_{2}$

This year, there are 120 children participating in each program.

The number of participants in the town's soccer program increases by 10% each year.

Using the exponential growth formula, the number of participants in the town's soccer program after $x$ years will be.....

$y_{1}=120(1+0.10)^x\\ \\ y_{1}=120(1.10)^x$

The number of participants in the town's street hockey program increases by 10 children each year.

So, the number of increased participants in $x$ years $=10x$

Thus, the number of participants in the town's street hockey program after $x$ years will be.....

$y_{2}=120+10x$

If the total number of children participating in the two programs is represented as $y$ , then.....

$y= y_{1}+y_{2}\\ \\ y=120(1.10)^x+120+10x$

So, the function that can be used to predict the total number of children participating in the town's soccer and street hockey programs in x years will be: $y=120(1.10)^x+120+10x$

3 0

3 years ago