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Katen [24]
3 years ago
14

-3x2( 7x2 - x + 4) What is the answer

Mathematics
1 answer:
Lerok [7]3 years ago
6 0

Answer:

6x-108

Step-by-step explanation:

-3 · 2(7 · 2 - x + 4)

= ((−3)(2))((7)(2) +− x + 4)

= −84 + 6x − 24

= 6x − 108

The answer is 6x - 108

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Can someone please help!
agasfer [191]
“Y” is equal to 9 because you substitute the x which is 2 and then solve from there
7 0
3 years ago
According to a certain​ country's department of​ education, 39.4​% of​ 3-year-olds are enrolled in day care. What is the probabi
SCORPION-xisa [38]

Answer:

0.394

Step-by-step explanation:

Given:

Percent of 3 year-olds enrolled in daycare = 39.4%

The above statement means that if the total number of 3 year-olds is 100, then out of the 100 persons aged 3 years, the number of persons enrolled in a daycare is 39.4.

Now, probability of an event is the ratio of the favourable outcomes for that event to the total number of outcomes.

Here, the favourable number of outcomes is the number of persons aged 3 years enrolled in a daycare which is equal to 39.4.

The total number of outcomes is the total number of 3 year-olds which is 100.

Therefore, the probability that a randomly selected​ 3-year-old is enrolled in day​care is given as:

P(enrolled)=\frac{39.4}{100}=0.394

7 0
3 years ago
What are the partial products for 28 times 15
guapka [62]
Here is the partial product
28×15=140 is the partial product
Good luck in the test!
5 0
3 years ago
Read 2 more answers
Wire of length 20m is divided into two pieces and the pieces are bent into a square and a circle. How should this be done in ord
blondinia [14]

Answer:

The radius of the circle ,r= 1.43 m

The length of the side of square ,a= 2.77 m

Step-by-step explanation:

Given that

L= 20  m

Lets take radius of the circle =r m

The total parameter of the circle = 2π r

Area of circle ,A=π r²

The side of the square = a m

The total parameter of the square = 4 a

Area of square ,A'=a²

The total length ,L= 2π r+ 4 a

20  = 2π r+ 4 a

r=3.18 - 0.63 a

The total area = A+ A'

                   A"   =π r² +a²

A"= 3.14(3.18 - 0.63 a)² + a²

For minimize the area

\dfrac{dA"}{da}=0

3.14 x 2(3.18 - 0.63 a) (-0.63) + 2 a = 0

3.14 x (3.18 - 0.63 a) (-0.63) + a = 0

-6.21 + 1.24 a + a=0

2.24 a = 6.21

a=2.77 m

r= 3.18 - 0.63 a

r= 3.18 - 0.63 x 2.77

r=1.43 m

Therefore the radius of the circle ,r= 1.43 m

The length of the side of square ,a= 2.77 m

4 0
3 years ago
Read 2 more answers
Given the following coordinates complete the reflection transformation.​
Minchanka [31]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ) , then

A (- 1, - 5 ) → A' (- 1, 5 )

B (2, - 3 ) → B' (2, 3 )

C (3, - 5 ) → C' (3, 5 )

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

A' (- 1, 5 ) → A'' (1, 5 )

B' (2, 3 ) → B'' (- 2, 3 )

C' (3, 5 ) → C'' ( - 3, 5 )

4 0
3 years ago
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