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3 years ago

Which pair not a pair of congruent sides in the diagram below ?

Mathematics

2 answers:

Ulleksa [173]3 years ago

4 0

Answer:

Step-by-step explanation:

i need a branillist

iVinArrow [24]3 years ago

3 0

Answer:

A. KJ and JH

Step-by-step explanation:

The rest of the sides are all congruent. You can see how many lines there are on each of the sides to find which ones are congruent.

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What is 6r+70=-2(35+3r)

lesya [120]

6r+70=-2(35+3r)

multiply the bracket by -2

(-2)(35)=-70

(-2)(3r)=-6r

6r+70=-70-6r

move -70 to the left side

sign changes from -70 to +70

6r+70-70=-70-70-6r

6r=-70-70-6r

move-6r to the left side

6r=-140-6r

move -6r to the other side

6r+6r=-140-6r+6r

12r=-140

divide both sides by 12

12r/12=-140/12

r=-140/12

reduce- by dividing by 4

-140/4=-35

12/4=3

Answer:

r= -35/3 and r=-11 2/3

7 0

4 years ago

What is the domain of y=4sin(x)?

stealth61 [152]

Answer:

( − ∞ , ∞ ) { x | x ∈ R }

Step-by-step explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

4 0

3 years ago

The coordinates of AB are A(-5, -1) and B(-2, -6). If AC : CB = 3 : 7, what are the coordinates of point C?

bixtya [17]

$\text{Let the coordinates of AB are }A(-5,-1), \text{ and }B(-2, -6)\\
\\
\text{let the coordinate of th point C be (x, y), such that}\\
\\
AC:CB=3:7\\
\\
\text{By the section formula, we know that if P(x,y) lies on a line segment AB}\\
\text{where, }A(x_1,y_1), \ B(x_2,y_2)\text{ and satisfy the ratio, }AP:PB=m:n, \text{ then}$

$P=\left ( \frac{mx_2+nx_1}{m+n}, \ \frac{my_2+ny_1}{m+n} \right ).\\
\\
\text{So using this formula, we get for the given problem}\\
\\
C=\left ( \frac{3(-2)+7(-5)}{3+7}, \ \frac{3(-6)+7(-1)}{3+7} \right )\\
\\
\Rightarrow C=\left ( \frac{-6-35}{10}, \ \frac{-18-7}{10} \right )\\
\\
\Rightarrow C=\left ( \frac{-41}{10}, \ \frac{-25}{10} \right )\\
\\
\Rightarrow C=\left ( -4.1, \ -2.5 \right )$

Coordinates of the point C is: (-4.1, -2.5)

6 0

3 years ago

A secretary types 160 words in 2 minutes. How many words can she type in 45 minutes?

zavuch27 [327]

Answer:

3,600

Step-by-step explanation:

1 minute=80 words

2 minutes=160 words

----------> I divided 44 by 2=22x 160 =44 minutes=3,520

add 1 more minute(1 minute=80 words)

so 3,600

3 0

2 years ago

Find the equation of Y+9=13

Maksim231197 [3]

Answer:

Y = 4

Step-by-step explanation:

7 0

3 years ago