3 years ago

Im having trouble with this one HELP PLZ i want to go to sleep ;-; PLZLZZZZZZZZZ

Mathematics

1 answer:

Yanka [14]3 years ago

7 0

1. (x-7)(x-4)
2. (x-12)(x+7)
use foil to check your work

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What value or values of x satisfy 2x + 5.31 = 4.2?

Softa [21]

Answer: x can equal -3.2 or -7.4.

Step-by-step explanation:

The correct expression is:

2|x+5.3|=4.2

So, we have an absolute value equation, where it can be positive or negative:

Positive

2 (x+5.3)=4.2

2x+10.6 =4.2

2x=4.2-10.6

2x = -6.4

x= -6.4/2

x = -3.2

Negative

2[-(x+5.3)]=4.2

-2x-10.6 =4.2

-2x= 4.2+10.6

-2x= 14.8

x= 14.8/-2

x= -7.4

x can equal -3.2 or -7.4.

Feel free to ask for more if needed or if you did not understand something.

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3 years ago

In the figure, PQ is parallel to RS. The legth of RP is 4 cm; the length of PT is 16 cm; the length of QT is 20 cm. What is the

Studentka2010 [4]

4/16 = SQ/20

SQ = (4*20) / 16 = 5 cm

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3 years ago

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Which expressions show a way to solve this problem? marsha had 54 beads. she kept 14 of the beads and shared the rest equally am

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54 - 14 = 40
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3 years ago

Plot (25/3) and (42/3) on the number line.

ss7ja [257]

Answer:

Refer to the Attachment

Step-by-step explanation:

Rewriting the fractions in decimal and whole number, we have the following:

$\frac{25}{3} = 8\frac{1}{3} = 8.3$

$\frac{42}{3} = 14$

Thus, 42/3 is on 14 and 25/3 is on 8 and then add 1/3 from 8 going to 9.

Therefore, the points must be plotted as follows:

The blue point indicates the 42/3 while the red point indicates the 25/3.

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The figure below is divided into 100 small squares of equal size.

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60/100 / 60 are shaded out of the hundred. Simplified would be 3/5. The decimal would be 0.6.

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2 years ago

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