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ANTONII [103]
2 years ago
9

Again you don’t need to answer all of them but if you can do some that would be wonderful!

Mathematics
2 answers:
Maru [420]2 years ago
8 0

Answer:

17)  x=7

18) x= -26

19) x= -8

20) x= 6

Step-by-step explanation:

17) is congruent

18) is supplementary

19) is congruent

20) is congruent

Akimi4 [234]2 years ago
4 0

Answer:

Q17. 6x+8=50 (alt angles, u//v)

6x=50-8

=42

x=42÷6

=7

Q18. 80°+x+106°=180° (int angles, u//v)

x+186°=180°

x=180°-186°

=-6

Q19. x+68=60 (vert opp angles)

x=60-68

=-8

Q20. 20x=120°

x=120÷20

=10

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I need help asap!!!!!!!!!!!!!!!!!!!!
madreJ [45]

Answer:

# 2 is correct :)

Step-by-step explanation:

8 0
2 years ago
Solve the equation and enter the value of x below 2(x+6)=-10
malfutka [58]

Answer:

\huge \boxed{x=-11}

Step-by-step explanation:

First, divide by 2 from both sides of equation.

\displaystyle \frac{2(x+6)}{2}=\frac{-10}{2}

Then, solve.

\displaystyle x+6=-5

Subtract by 6 from both sides of equation.

\displaystyle x+6-6=-5-6

Solve to find the answer.

\displaystyle x=-11, which is our answer.

6 0
3 years ago
Can you help me with my math questions
GrogVix [38]

p^2+2(7)p+7^2=(p+7)^2


Justification:

Given:  p^2+14p+49


Split the middle term;

=p^2+7p+7p+49


Factor:

=p(p+7)+7(p+7)


=(p+7)(p+7)


=(p+7)^2


QUESTION 3a

The given expression for the area of the rectangle is  36x^2-12x+1.


This is equal to the indicated area which is 289\;in^2


This implies that


36x^2-12x+1=289


\Rightarrow (6x-1)^2=289


\Rightarrow (6x-1)(6x-1)=289


\Rightarrow l=(6x-1),w=(6x-1)



This implies that, the dimensions of the rectangle are equal;


Using the square root method, we obtain

\Rightarrow (6x-1)=\pm \sqrt{289}


\Rightarrow (6x-1)=\pm 17


\Rightarrow 6x=1\pm 17


\Rightarrow 6x=18 \:or\:6x=-16


\Rightarrow x=3 \:or\:x=-\frac{2}{3}

We discard the negative value.

The side length of this rectangle is


\Rightarrow l=(6(3)-1)=17,w=6(3)-1=17


QUESTION 3b

The given expression for the area of the rectangle is  25x^2-50x+25.


This is equal to the indicated area which is 1225\;in^2


This implies that


25x^2-50x+25=1225


25(x^2-2x+1)=1225


(5(x-1))^2=35^2


5(x-1)5(x-1)=49


\Rightarrow l=5(x-1),w=5(x-1)



This implies that, the dimensions of the rectangle are equal;


Using the square root method, we obtain

\Rightarrow 5(x-1)=\pm \sqrt{1225}


\Rightarrow 5(x-1)=\pm 35


\Rightarrow x=1\pm 7


\Rightarrow x=8 \:or\:x=-6

We discard the negative value.

The side length of this rectangle is


\Rightarrow l=5(8-1)=35,w=5(8-1)=35



QUESTION 3c

The given expression for the area of the rectangle is  49x^2-56x+16.


This is equal to the indicated area which is 289\;in^2


This implies that


49x^2-56x+16=289




(7x-4)^2=289


(7x-4)(7x-4)=289



\Rightarrow l=(7x-4),w=(7x-4)


Applying the laws of indices gives;


(7x-4)^2=17^2


This implies that;

7x-4=17


7x=21


x=3in.


The side length of this rectangle is


\Rightarrow l=7(3)-4=17\:in.,w=7(3)-4=17\:in.


Dont forget that the square is also a rectangle.





5 0
3 years ago
Read 2 more answers
Write down the equation for the following expression and then solve it.
Tems11 [23]

Answer:

x = 24

Step-by-step explanation:

x - (3 · 4) = 12

x - 12   =     12

  + 12      + 12

x = 24

6 0
2 years ago
Read 2 more answers
How to find the point slope form with the slope of 3 and the point of -2/6
Levart [38]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \:y-6 = 3(x + 2)

____________________________________

\large \tt Solution  \: :

Equation of line in point - slope form :

\qquad \tt \rightarrow \:y-y_1 = m(x - x_1)

  • \tt  \:m = slope=3

  • \tt y_1 = y \:  \: coordinate \:  \: of \:  \: point = 6

  • \tt  \:x_1 = x \:  \: coordinate \:  \: of \:  \: point =  - 2

Here :

\qquad \tt \rightarrow \:y - 6 = 3(x -  ( - 2))

\qquad \tt \rightarrow \:y - 6 = 3(x +  2)

5 0
1 year ago
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