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Kay [80]
2 years ago
15

Show how 3/4 × 4 can be solved using repeated addition.

Mathematics
2 answers:
jek_recluse [69]2 years ago
7 0

Answer:

3/4 + 3/4 + 3/4 + 3/4 = 12/4 = 3

Step-by-step explanation:

3/4 * 4= 12/4 = 3

3/4 + 3/4 + 3/4 + 3/4 = 12/4

12/4 = 3

Andru [333]2 years ago
6 0

Answer:

3/4 + 3/4 + 3/4 + 3/4 = 3

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Find the coordinates of the foot of the perpendicular from (6,8) the line through(1,5) and (9,3)​
Murrr4er [49]

Answer:

plz follow and thanks me

Step-by-step explanation:

Let (a,b) be the coordinates of the foot of the perpendicular from the point (−1,3) to the line 3x−4y−16=0

Slope of the line joining (−1,3) and (a,b), is m

1

=

a+1

b−3

Slope of the line 3x−4y−16=0 or y=

4

3

x−4,m

2

=

4

3

Since these two lines are perpendicular,m

1

m

2

=−1

∴{

a+1

b−3

}⋅{

4

3

}=−1

⇒

4a+4

3b−9

=−1

⇒3b−9=4a−4

⇒4a+3b=5...(1)

Point(a,b) lies on line 3x−4y=16

∴3a−4b=16....(2)

On solving equation (1) and (2) we obtain

a=

25

68

and b=−

25

49

Thus, the required coordinates of the foot of the perpendicular are {

25

68

,

25

49

}

4 0
2 years ago
I’m not sure on how are you suppose to graph this without knowing what the x’s are and a calculator?
Bogdan [553]

Answer:

The answer is shown in the plotted graph attached with the answer.

Step-by-step explanation:

i) Let y = f(x)

ii) According to the first equation we will consider x = -6, -5, -4, -3, -2, -1, 0, and

   1

Therefore   x   and     y = x + 4         for -6 ≤   x   <  2

  •        -6               -2
  •        -5               -1
  •        -4                0
  •        -3                1
  •        -2                2
  •        -1                3
  •         0                4
  •         1                 5        

iii) y = 6 when x = 2 is the second equation given for the graph

iv)            x                  y = -x + 2        for x > 2 is the third equation given

  •        3                 -1
  •        4                 -2
  •        5                 -3
  •        6                 -4

6 0
3 years ago
Which scatterplot shows a negative linear association between the variables?
jek_recluse [69]
The scatterplot that shows a negative linear association between the variables is B
8 0
2 years ago
Read 2 more answers
What is the Y value of the vertex of the function F of X equals X -3 X +11
Y_Kistochka [10]

Answer:

I really don't know sry

8 0
2 years ago
The probability that a child will learn to swim before age 6 is 0.312. If you take a group of 12 children, what is the probabili
vagabundo [1.1K]

Answer:

The probability of 1 or less children from that group to learn how to swim before 6 years of age is 0.072

Step-by-step explanation:

In this case we need to compute the probability of none of these 12 children learns to swim before 6 years of age. This is given by:

p(0) = (1 - 0.312)^(12) = 0.688^(12) = 0.01124

We now need to calculate the probability that one child learns to swim before 6 years of age.

p(1) = 12*0.312*(1 - 0.312)^(11) = 3.744*(0.688)^(11)

p(1) = 3.744*0.01634

p(1) = 0.0612

The probability of 1 or less children from that group to learn how to swim before 6 years of age is:

p = p(0) + p(1) = 0.01124 + 0.0612 = 0.07244

6 0
3 years ago
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