answer.
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
Alja [10]
1 year ago
13

The diagonals of kite ABCD intersect at E. If ∡EBC=30°, what is ∡BCE?

Mathematics
1 answer:
lukranit [14]1 year ago
8 0

Answer:

∡BCE = 60

Step-by-step explanation:

Here, we want to find the angle marked BCE

From our diagram, the angle marked BCE is y

Looking at triangle BCE, we have the right angle, an angle measure of 30 and the angle marked y which we say is BCE

mathematically, the sum of all these will give 180 as the sum f the interior angles of a triangle is 180

Thus, we have that;

y + 30 + 90 = 180

y = 180-120

y = 60

You might be interested in
A graduate weighs 35.825 g. When 10 mL of water are measured in it, the weight of the graduate and water is 45.835 g. Calculate
erik [133]

Answer:

Calculated weight of water = 10.01 g

percentage error = 0.1%

Step-by-step explanation:

Given:

Weight of graduate = 35.825 g

Weight of graduate + Water = 45.835 g

Now,

The weight of water = ( Weight of graduate + Water ) - Weight of graduate

or

The weight of water = 45.835 - 35.825

or

The weight of water = 10.01 g

Now,

The percentage of error = \frac{\textup{Calculated value - Actual value}}{\textup{Actual value}}\times100

or

The percentage error = \frac{\textup{10.01 - 10}}{\textup{10}}\times100

or

The percentage error = 0.1%

3 0
2 years ago
A particular personal trainer works primarily with track and field athletes. She believes that her clients run faster after goin
masya89 [10]

Answer:

A matched-pairs hypothesis test for μD

Step-by-step explanation:

The trainer wants to compare each athlete's time before the program to the time after the program.  Since we're comparing times for the same athlete, the data is paired, so we should use a matched-pairs test.

7 0
2 years ago
Matty’s piano book includes 15 songs in the key of C, 10 in the key of G, and 5 in the key of F. The songs from all three keys a
Marta_Voda [28]

Matty's piano is going to a random key of c next.

6 0
2 years ago
Write an expression that can be used to multiply 6 times 198 mentally
lara31 [8.8K]
100×6

6×90

6×8

add them together

community property
4 0
2 years ago
Quadrilaterals WXYZ and BADC are congruent. In addition, WX ≅ DC and XY ≅ BC.
luda_lava [24]

Answer: 20 cm

If quadrilaterals WXYZ and BADC are congruent, then their corresponding sides are congruent.

Given that

WX≅DC,

XY≅BC,

you can state that

YZ≅AB,

WZ≅AD.

If AD = 4 cm and AB = 6 cm, then WZ = 4 cm and YZ = 6 cm. Opposite rectangle sides are congruent, then XY = 4 cm and WX = 6 cm.

The perimeter of WXYZ is

P = WX + XY + YZ + WZ = 6 + 4 + 6 + 4 = 20 cm.

5 0
2 years ago
Read 2 more answers
Other questions:
  • At a high school, students can choose between three art electives, four history electives, and five computer electives. Each stu
    5·2 answers
  • Help please!!! I just seriously need help I'm bad at math>
    11·1 answer
  • Given: mTRV = 60° mTRS = (4x)° Prove: x = 30 What is the missing reason in step 3? substitution property of equality angle addit
    14·2 answers
  • Brant is preparing for the upcoming track season, and he wants to reduce the time of his 1-mile run. Last year, he conducted an
    13·2 answers
  • Sameera predicted that she would sell 38 blankets, but she actually sold 28 blankets. Which expression would find the percent er
    6·2 answers
  • g A carload of steel rods has arrived at Cybermatic Construction Company. The car contains 50,000 rods. Claude Ong, manager of Q
    9·1 answer
  • Solve for x. −12 = − 3/4 x A) 6 B) 8 C) 12 D) 16
    11·2 answers
  • Dr. Miriam Johnson has been teaching accounting for over 20 years. From her experience, she knows that 60% of her students do ho
    10·1 answer
  • (i)Express 2x² – 4x + 1 in the form a(x+ b)² + c and hence state the coordinates of the minimum point, A, on the curve y= 2x² 4x
    9·1 answer
  • Don claims that the trianlges are congruent by SAS triangle congruence criterion because a sequence of rigid motions carries \tr
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!