1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masya89 [10]
3 years ago
15

Can you help me with this question?

Mathematics
1 answer:
Rufina [12.5K]3 years ago
4 0

Answer:

  16.2

Step-by-step explanation:

The angle internal to the triangle at B is the supplement of the one shown, so is 65°. That is equal to the angle internal to the triangle at D. Since the vertical angles at C are congruent, the two triangles are similar by the AA theorem.

Corresponding sides of similar triangles are proportional, so we can write the proportion shown in the attachment:

  BC/FC = DC/AC

  BC = FC(DC/AC) = 21.6(7.2/9.6)

  BC = 16.2 . . . . matches the first choice

You might be interested in
Kirsty counts the number of peas in a sample of pea pods.
zaharov [31]

Answer:

6 because it is the only number that occurs more then once

6 0
3 years ago
What is 8/12-4/8 = reduced to its lowest terms
monitta

Answer:

2/3-1/2

Step-by-step explanation:

#/#/$^%/£'fcjcutyfyi

7 0
3 years ago
6 tons equals how many lbs?
kap26 [50]

Answer:

12000

Step-by-step explanation:

Done

5 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form using the given points (19,-16), (-7,-15)
KonstantinChe [14]

Answer:

y = 0.3x − 12.6

Step-by-step explanation:

3 0
3 years ago
(a) Find parametric equations for the line through (1, 3, 8) that is perpendicular to the plane x − y + 4z = 3. (Use the paramet
tigry1 [53]

Answer:

a)    x = 1 + t

      y = 3 -  t

      z = 8 +2t

b)  In XY plane (-3,-1,0)

    In YZ  plane (0, 4,  6)

    In XZ plane ( 4,0,14)

Step-by-step explanation:

The equation of plane is given as

x -y +2z = 5

a)

COMPARE THE ABOVE EQUATION with Ax+ By +Cz = d

A = 1, B = -1. C =  2

N = (1,3,8) {GIVEN POINT]

the parametric eqn. of line P(Xo , Yo, Zo) and prependicular plan Ax+ By+ Cz = d is given as

X = Xo+ At

Y = Yo + Bt

Z=Zo + Ct

x = 1 + t

y = 3 -  t

z = 8 +2t

b) Line intersecting XY plane if z equal to zero i.e

0 = 8 +  2t

t =-4

for t = -4

x = -3, y = -1, z = 0

In YZ plane, x = 0

t = -1

interesting point will be

(0, 4,  6)

In XZ plane, Y =  0

t = 3

interesting point will be

(4, 0,  14)

8 0
3 years ago
Other questions:
  • 11. Describe and correct the error in evaluating the expression.<br> –21-7)= -14
    10·1 answer
  • Rounding 845,001 to the nearest thousand
    11·2 answers
  • The larger leg of a right triangle is 3 cm longer than its smaller leg. The hypotenuse is 6 cm longer than the smaller leg. How
    5·1 answer
  • 44. Line A passes through points (5, 2) and (13, 6). Line B is parallel to Line A. Line C is perpendicular to Line B. What is th
    12·1 answer
  • What is the first numbers of pi?
    7·2 answers
  • Marcus hikes at a rate of 3 miles per hour. If he hikes for 7 and a half hours, how many miles will he hike?
    12·1 answer
  • Select the graph that correctly represents the
    14·1 answer
  • A company makes blocks of butter in the shape of a rectangular prism with dimensions 4 inches by 2 inch by 1 inch. They want to
    6·2 answers
  • What is 2x3y if x = -2y =4
    10·2 answers
  • 1. Explain how you would model 5 x 2/32. When you multiply 2/3 by a fraction less than one, how does the product compare to the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!