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SVEN [57.7K]
3 years ago
14

Abc = dfe find the value of x.

Mathematics
2 answers:
LiRa [457]3 years ago
8 0
BC <span>≅ EF (CPCTC)

Set the two side lengths equal to each other.

38.4 = 5x - 10.6

Isolate the x. Add 10.6 to both sides

38.4 (+10.6) = 5x - 10.6 (+10.6)

5x = 49

Isolate the x, divide 5 from both sides

5x/5 = 49/5

x = 49/5

x = 9.8

9.8 should be your answer

hope this helps</span>
Anarel [89]3 years ago
5 0
I think you're telling us that the two triangles are congruent ...
all the sides and angles of one triangle are equal to the sides
and angles of the other one.

OK.  That means that (5x - 10.6) = 38.4

Add 10.6 to each side:  5x = 49

Divide each side by 5 :  x = 49/5 or 9.8
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5 baseballs to 25 softballs in simplest form
sashaice [31]

Answer:

1/5

Step-by-step explanation:

5 baseballs to 25 softballs

=

1 baseballs to 5 softballs in simplest form

5 0
4 years ago
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Hi could someone just help me with this I'm not sure if i'm doing it correctly.
salantis [7]
Two angles are supplementary when they <span>add up to 180 degrees </span>⇒
m∠1 + m∠2 = 180°
4y + 7 + 9y + 4 = 180
13y + 11 = 180
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13y = 169
y = 169/13
y = 13

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4 0
4 years ago
Find the slope of the line passing through the points (-3,4) and (2,1)
maksim [4K]
Answer is d. -5/3 because y2-y1 =x2-x1
8 0
3 years ago
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Can anyone help me solve 23, 24?
zimovet [89]

Answer:

Problem 23) y=3x+6

Problem 24) y=-\frac{1}{3}x-5

Step-by-step explanation:

step 1

Find the slope of the given line

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

A(0,2)\ B(3,1)

Substitute the values

m=\frac{1-2}{3-0}

m=-\frac{1}{3}

step 2

Problem 23

we know that

If two lines are perpendicular then the product of its slopes is equal to minus 1

so

m1*m2=-1

Find the slope of the line

we have

m1=-\frac{1}{3}

substitute in the equation and solve for m2

(-\frac{1}{3})*m2=-1

m2=3

with the slope m2 and the point (0,6) find the equation of the line

Remember that

The equation of the line in slope intercept form is equal to

y=mx+b

we have

m=3

b=6 -----> the given point is the y-intercept

substitute

y=3x+6

step 3

Problem 24

we know that

If two lines are parallel, then its slopes are the same

so

with the slope m1 and the point (0,-5) find the equation of the line

The equation of the line in slope intercept form is equal to

y=mx+b

we have

m=-\frac{1}{3}

b=-5 -----> the given point is the y-intercept

substitute

y=-\frac{1}{3}x-5

8 0
4 years ago
Which of these is a correct step I construing an angle bisector?
olasank [31]

Answer:

1) Place the compass point at the vertex of the angle and open it to any width. Draw an arc that intersects of the sides of the angle.

2) Place the compass point at the one of the intersection points. Place the pencil at the other intersection point. This sets the compass with.

3) Draw an arc inside the angle.

4) Move the compass point to the intersection point on the other side of the angle being sure to keep the compass width the same. Draw a second arc inside the angle.

5) Make a point where the 2 arcs intersect the angle. Use a straight edge to draw a ray from the vertex of the angle through the point.

8 0
4 years ago
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