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
spayn [35]
4 years ago
12

Help with this question !

Mathematics
1 answer:
Genrish500 [490]4 years ago
5 0
Statements                                           Reasons
1. Write all the given as you did            1. Given
2. <DBA and <DBC are right angles     2. Def of perpendicular lines
3. m<DBA = 90                                     3. Def of right angle
    m<DBC = 90
4. m<DBA = m<DBC                             4. Substitution
5. m<DBA = m<1 + m<3                       5. Angle addition postulate
    m<DBC = m<2 + m<4
6. m<1 + m<3 = m<2 + m<4                  6. Substitution
7. m<3 = m<4                                        7. Subtraction prop of equality
You might be interested in
Draw and compare models of 3/4 of a pizza pie and 6/8 of a same-size pizza
Verizon [17]
Since I can't draw a model the answer is equal because if you reduce 6/8 the answer is 3/4
3 0
3 years ago
Read 2 more answers
K +-23 = -100<br>help me
Alex_Xolod [135]

Answer:

-77

Step-by-step explanation:

-77 + -23 = -100

4 0
3 years ago
A group of four boys (Alex, Bryan, Chris, and David) and five girls (Megan, Nancy, Olivia, Pauline, and Rebecc?
aliina [53]

Answer:

a) P = 362880 ways

b) P = 2880 ways

Step-by-step explanation:

a) We have four boys and five girls, they are going to sit together in a row of 9 theater seats, without restrictions

We have a permutation of 9 elements

P = 9!

P = 9*8*7*6*5*4*3*2*1

P = 362880 ways

b) Boys must seat together, we have two groups of people

4 boys  they can seat in 4! different ways

P₁ = 4!

P₁ = 4*3*2*1

P₁ = 24

And girls can seat in 5! dfferent ways

P₂ = 5!

P₂ = 5*4*3*2*1

P₂ = 120

To get total ways in the above mentioned condition, we have to multiply P₁*P₂

P = 24*120

P = 2880 ways

4 0
3 years ago
A teacher keeps track of how many books are read by students in each class. Which grade has read has read a higher rate hook per
12345 [234]
For the answer to the question above asking h<span>ow many more book does the other grade need to read to have the same rate?
I think the answer here is </span>the 7 grader needs to read 94 more books in order to catch up with 6 grade.
6 0
3 years ago
Read 2 more answers
What is the answer to this question
Rzqust [24]

Answer:

Letter B the second one

Step-by-step explanation:

4 0
4 years ago
Other questions:
  • What's 0+0?................
    5·2 answers
  • What is the slope of line m? PLEASE HELP !!!
    9·1 answer
  • How many quarts are there in 10 1/2 Gallons
    13·2 answers
  • The difference between a number and 12 is 20 in a fraction
    10·1 answer
  • Find the distance 1/4th from 10 to 2.
    10·1 answer
  • What is the median of the data represented by the box plot?
    13·1 answer
  • Write a proportion to solve this problem: if 12 math books weigh 40 pounds, how much would 18 math books weigh
    6·1 answer
  • A simple random sample of size nequals17 is drawn from a population that is normally distributed. The sample mean is found to be
    6·1 answer
  • Brennan made lemonade for the county fair. He has 12 Containers of the same size to fill. It takes 16 gallons of lemonade to fil
    9·1 answer
  • Solving x+ 8 = –3 gives:<br> (i) x = 11<br> (ii) x = 12<br> (iii) x = –11 <br> (iv) x = –12
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!