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
Julli [10]
2 years ago
10

Please help me with number ten and twelve

Mathematics
1 answer:
jasenka [17]2 years ago
5 0

Answer: 93,\ 34^{\circ}

Step-by-step explanation:

Given

For figure (i) both triangles are congruent

\therefore 8x-27=4x+33\\\Rightarrow 8x-4x=33+27\\\Rightarrow 4x=60\\\Rightarrow x=15

\Rightarrow PQ=8x-27\\\Rightarrow PQ=93

For figure (ii)

Two triangles WXZ and WZY are congruent

\therefore 9x-28=5x-8\\\Rightarrow 4x=20\\\Rightarrow x=5^{\circ}\\\Rightarrow \angle YWX=2(9x-28)\\\Rightarrow \angle YWX=2(17)\\\Rightarrow \angle YWX=34^{\circ}

You might be interested in
Factor: 24x - 16 Use the Greatest Common Factor Question 1 options: 8(x-2) 8(3x-2) 8(3x-8) 2(12x-8)
RSB [31]

Answer:8(3x-2)

Step-by-step explanation: 8 times 3d=24X 8 times -2=-16

4 0
3 years ago
Which statements are true of the graph of h(x) = 3/4-4? Check all that apply.
Dmitriy789 [7]

Answer:

the answers are : A , B , and E. i just took the assignment.

Step-by-step explanation:

5 0
2 years ago
Which point is 10 units from (2,5)
zalisa [80]

Answer:

All the points on (x - 2)² + (y - 5)² = 100

Step-by-step explanation:

It should be the circle with its center on point (2,5) and radius is 10.

(h , k) : center of circle (2,5)    h = 2     k = 5

r: radius     r = 10

Circle: (x - h)² + (y - k)² = r²

(x - 2)² + (y - 5)² = 100

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=8%20%2B%203%20%5Ctimes%204" id="TexFormula1" title="8 + 3 \times 4" alt="8 + 3 \times 4" align
Ira Lisetskai [31]

Answer:

20 is correct answer

Step-by-step explanation:

8+3×4

=8+12

=20

<em>Reme</em><em>mber</em><em> </em><em>always</em><em> </em><em>foll</em><em>ow</em><em> </em><em>bodmas</em><em> </em><em>rule</em><em> </em>

hope it helped you:)

thanks!

8 0
2 years ago
Read 2 more answers
The number of hours spent per week on household chores by all adults has a mean of 28 hours and a standard deviation of 7 hours.
Alchen [17]

Answer:

Probability that the mean hours spent per week on household chores by a sample of 49 adults will be more than 26.75 is 0.89435.

Step-by-step explanation:

We are given that the number of hours spent per week on household chores by all adults has a mean of 28 hours and a standard deviation of 7 hours.

Also, sample of 49 adults is given.

<em>Let X = number of hours spent per week on household chores</em>

So, assuming data follows normal distribution; X ~ N(\mu=28,\sigma^{2}=7^{2})

The z score probability distribution for sample mean is given by;

               Z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = mean hours = 28

            \sigma = standard deviation = 7 hours

            n = sample of adults = 49

<em>Let </em>\bar X<em> = sample mean hours spent per week on household chores</em>

So, probability that the mean hours spent per week on household chores by a sample of 49 adults will be more than 26.75 is given by =P(\bar X > 26.75 hours)

    P(\bar X > 26.75 hours) = P( \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{26.75-28}{\frac{7}{\sqrt{49} } } ) = P(Z > -1.25) = P(Z < 1.25)

                                                                     = 0.89435  {using z table}

Therefore, probability that the mean hours spent per week on household chores is more than 26.75 is 0.89435.

4 0
2 years ago
Read 2 more answers
Other questions:
  • jane walks 6 blocks east from home. Miguel walks 8 blocks north from home. How many blocks apart would the two schools be if you
    8·1 answer
  • 22 says you can peel 2 carrots per minute. How do I put this into an equation?
    8·1 answer
  • How do you write "the difference between twenty and a number and four is six" as an algebraic expression?
    10·1 answer
  • What is the value of a?
    6·1 answer
  • You have $900 in a checking account. You pay a $60 cell phone bill each month using this account.
    14·1 answer
  • If 5+5 = 10 What does 15+5 equal?
    8·2 answers
  • The word "less than" represent what operation?
    12·1 answer
  • What is the answer to the following <br>-1+8=​
    8·2 answers
  • 1-1= what i need to know.
    9·2 answers
  • Solve for h <br><br> A=7h<br><br> thank you
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!