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ki77a [65]
3 years ago
10

CAN ANYONE HELP WITH THESE PLEASE...? (EASY 21 POINTS)

Mathematics
1 answer:
nadezda [96]3 years ago
7 0
1) 2x * 2x = 4x^2
2) 2(-1)+6 = 4
3) (4x)(6x+6) = 24x^2 + 4x
4) ((6)+4)(5(6)) = 300
5) 4x(x+1)= 4x^2+4x
6) (-x-3)(-5x+10) = 5x^2+5x-30
7) (2(4)+3)(5(4)-2) = 198
8) ((5)^2+2)(2(5)-1)=243
9) 
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Exercises Solve each inequality. Graph the solution set on a number line. 3x – 4 < 17
Nonamiya [84]

Answer:

x <7

Step-by-step explanation:

3x – 4 < 17

Add 4 to each side

3x – 4+4 < 17+4

3x < 21

Divide each side by 3

3x/3 < 21/3

x <7

8 0
3 years ago
Read 2 more answers
Given LMNP ∼ QRST, find RS.
creativ13 [48]
I can’t solve right now but if you know cross multiplication i can set up the equation for you

27/45=x/25
now cross multiply and get your answer :)
6 0
2 years ago
Read 2 more answers
An equation of a line through (-1, 4) which is perpendicular to the line y = 4x + 1 has slope and y-intercept
Assoli18 [71]

Answer:

The answer to your question is   y = -1/4x + 15/4

Step-by-step explanation:

Data

P (-1, 4)

⊥ y = 4x + 1

Process

1.- Find the slope of the line given

       y = 4x + 1

slope = 4

2.- Find the slope of the new line

     slope 2 = -1/4

3.- Find the equation of the line

       y - y1 = m(x - x1)

Substitution

       y - 4 = -1/4(x + 1)

Simplification

       y - 4 = -1/4x - 1/4

       y = -1/4x - 1/4 + 4

       y = -1/4x - 1/4 + 16/4

Result

       y = -1/4x + 15/4

7 0
3 years ago
PLEASE HELP ASAP!!!!
Veseljchak [2.6K]

Answer:

Step-by-step explanation:

R(0,0)

A=((0+2a)/2,(0+2b)/2)=(a,b)

S(2a,2b)

B=((2a+2c)/2,(2b+2d)/2)=(a+c,b+d)

T(2c,2d)

C=((2c+2c)/2,(2d+0)/2)=(2c,d)

V(2c,0)

D=((2c+0)/2,(0+0)/2)=(c,0)

R(0,0)

slope of AB=(b+d-b)/(a+c-a)=d/c

slope of DC=(d-0)/(2c-c)=d/c

slope of AD=(0-b)/(c-a)=-b/(c-a)

slope of BC=(d-b-d)/(2c-a-c)=-b/(c-a)

7 0
3 years ago
What digits makes 3,71? Divisible by 3 (connections academy unit test)
wlad13 [49]

Since we know that a number is divisible by 3 if the sum of all digits is divisible by 3.

Let us check which digits will make 371? divisible by 3.

3+7+1+0=11

11 is not divisible by 3.

Now let us check other digits as well.

3+7+1+1=12

12 is divisible by 3.

3+7+1+4=15

15 is also divisible by 3.

3+7+1+7=18

18 is divisible by 3 as well.

Therefore, 1, 4 and 7 in tenth place will make our number divisible by 3 and our numbers will be 3711, 3714 and 3717.

6 0
3 years ago
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