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Drupady [299]
3 years ago
13

What is the product? (2x-1)(x+4)

Mathematics
1 answer:
MissTica3 years ago
4 0

Answer:

2x² + 7x - 4

Step-by-step explanation:

(2x-1)(x+4)

= (2x)(x) + (2x)(4) + (-1)(x) + (-1)(4)

=2x² + 8x - x -4

=2x² + 7x - 4

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What is the value of a in a/5 + 3= 8
OLga [1]

Answer:

Step-by-step explanation:

what is the value of a in a/5 + 3= 8

a/5 + 3= 8

a/5 = 8 - 3

a/5 = 5

a = 5 * 5

a = 25

3 0
2 years ago
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Mr. Chen filled a wading pool with 20 gallons of water. How many pints of water did he put in a pool
eduard

Answer:

160 pints

Step-by-step explanation:

Every 1 gallon = 8 pints.

20x8=160

8 0
3 years ago
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{1,2,3,...,75,76,78} how many numbers in the set above have 2 as a factor but not have 10 as a factor
Alinara [238K]

Answer:

<h2>A) 32</h2>

Step-by-step explanation:

From 1 to 10 we have 4 numbers which are {2,4,6,8}

From 10 to 20 we have 4 numbers which are {12,14,16,18}

.

.

.

From 70 to 78 we have 4 numbers which are {72,747,6,78}

<em><u>conclusion:</u></em> we 4×8 number = 32

5 0
3 years ago
There are 4,000 undergraduates registered at a certain college. Of them, 364 are taking one course, 496 are taking two courses,
kykrilka [37]

Answer:

X=1, P = 0.091

X=2, P = 0.124

X=3, P = 0.115

X=4, P = 0.378

X=5, P = 0.264

X=6, P = 0.028

Step-by-step explanation:

To calculate the probability distribution of X, first we have to define the sample space.

In this case X=1,2,3,4,5,6. This are the values that X can take.

The probability is calculated as equal to the relative frequency of each of the values.

For X=1, P = 364/4000 = 0.091

For X=2, P = 496/4000 = 0.124

For X=3, P = 460/4000 = 0.115

For X=4, P = 1512/4000 = 0.378

For X=5, P = 1056/4000 = 0.264

For X=6, P = 112/4000 = 0.028

4 0
3 years ago
Help me pleaseee! <br><br> Solve for BC:
Marrrta [24]

Answer:

21

Step-by-step explanation:

Since this is an equilateral triangle, all sides are equal.

3x-6 = 2x+3

Move like terms to one side

x = 9

Now we plug 9 back in for x

2(9) + 3

=18 + 3

=21

8 0
3 years ago
Read 2 more answers
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