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
Ipatiy [6.2K]
3 years ago
6

Please help with geomtry

Mathematics
1 answer:
notsponge [240]3 years ago
5 0
Angle ADB is a right angle, which is given.

The measure of ADB is 90 degrees by definition of right angle.

The two angles are a linear pair (aka they're supplementary) by definition of linear pair (they're formed by two intersecting lines).

The measure of BDC is 90 because BDC + ADB = 180 (definition of linear pair), and ADB = 90 (given).

BDC = ADB because 90 = 90


Overall, the two triangles are congruent by SAS.
You might be interested in
I’m posting too many<br><br><br> Solve each equation 51/2=d +1/4 what is d?
Svetllana [295]
D = 101/4
if you need it in decimal form it is 25.25
if you need it in mixed number form it is 25 1/4
7 0
2 years ago
Please someone do this for me
nlexa [21]

Answer:

A = -12

B = -8

C = -4

Step-by-step explanation:

y=2x-8

x = -2

y=2(-2)-8=-4-8=-12

A = -12

x = 0

y = 2 (0)-8=-8

B = -8

x = 2

y = 2 (2) -8 = 4-8 = -4

C = -4

Hope this helps

8 0
2 years ago
The number of pizzas ordered on friday evenings between 5:30 and 6:30 at a pizza delivery location for the last 10 weeks is show
Ainat [17]
For a smoothing constant of 0.2

Time period – 1 2 3 4 5 6 7 8 9 10

Actual value – 46 55 39 42 63 54 55 61 52

Forecast – 58 55.6 55.48 52.18 50.15 52.72 52.97 53.38 54.90

Forecast error - -12 -.6 -16.48 – 10.12 12.85 1.28 2.03 7.62 -2.9
The mean square error is 84.12

The mean forecast for period 11 is 54.38
For a smoothing constant of 0.8

Time period – 1 2 3 4 5 6 7 8 9 10

Actual value – 46 55 39 42 63 54 55 61 52

Forecast – 58 48.40 53.68 41.94 41.99 58.80 54.96 54.99 59.80

Forecast error - -12 6.60 -14.68 0.06 21.01 -4.80 0.04 6.01 -7.80The mean square error is 107.17

The mean forecast for period 11 is 53.56


Based on the MSE, smoothing constant of .2 offers a better model since the mean forecast is much better compared to the 53.56 of the smoothing constant of 0.8.
7 0
3 years ago
Write an iequality for -5(×+7)&lt;-10 representing the solution for x​
vovikov84 [41]

Answer:

X<-5

Step-by-step explanation:

1) open the brackets

2) take -35 to the other side with -10

where it turns to be -5X<-10+35

3) work out to find -5X<25

4) divide both sides by -5

to find X<-5

3 0
2 years ago
If the area of a triangle is 48 cm2 and the base of the
makvit [3.9K]

Answer:

8

Step-by-step explanation:

Formula for height of triangle

A÷BX2

In this case, 48÷12=4×2=8

Hope you understand ☺️

4 0
3 years ago
Other questions:
  • If nondisjunction occurs in meiosis ii during gametogenesis, what will be the result at the completion of meiosis? a all the gam
    10·1 answer
  • The sidewalks on both sides of Peach St, are parallel. One sidewalk can be modeled by the equation 2x - y=-1. Which equation cou
    8·1 answer
  • At the start of the week, you could run for 88 minutes. By the end of the week, you could run for 1515 minutes. Which proportion
    10·1 answer
  • Hey can anybody help me out with this please
    11·2 answers
  • Use the figure to the right to find the value of PT. T is the midpoint of PQ.
    13·2 answers
  • Solve for X. 67 = 18 + X
    6·1 answer
  • A number cube has the numbers 1
    9·1 answer
  • If 4(r + 2) – 13 = 11, what is the value of r?
    13·1 answer
  • Which system of equations has no solution?
    5·1 answer
  • James works at a clothing store where he earns a 4% commission on his total sales How much does James earn from commission on a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!