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
Snowcat [4.5K]
2 years ago
9

What is the correct value of z? A. Z=12 B. Z=13 C. Z=10 D. Z=11

Mathematics
1 answer:
inna [77]2 years ago
3 0
<h3>Answer:  A) z = 12</h3>

==========================================

Work Shown:

RS = RT

2z-15 = 9

2z = 9+15

2z = 24

z = 24/2

z = 12

The reason why RS is equal to RT in the first equation is because we have an isosceles triangle. Recall that any isosceles triangle has exactly two sides the same length, and the opposite base angles are congruent to one another. The congruent angles are indicated with the single arcs.

In short: the base angles S and T are congruent, so the opposite sides RS and RT are the same length. This leads to RS = RT.

You might be interested in
Find the surface area of the triangular prism (above) using its net (below).
r-ruslan [8.4K]

Answer:

96 square units

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attached photo.

My answer:

  • The length of the large rectangle is: 5
  • The width of the large rectangle is: 7

=> Area of the large rectangle = length × width  = 7*5 = 35 square units

  • The length of the middle rectangle is: 7
  • The width of the middle rectangle is: 4

=> Area of the middle rectangle = length × width  = 7*4 = 28 square units

  • The length of the small rectangle is: 7
  • The width of the small rectangle is: 3            

=> Area of the small rectangle = length × width  = 7*3 = 21 square units

Area of top and the bottom triangles =2* \frac{1}{2}bh  = 4*3 =12  

Total surface area = 35 + 28 + 21 + 12 = 96 square units

3 0
3 years ago
Read 2 more answers
-2x - 10 =15 help me plzzzz
Dima020 [189]

Answer:

x = -12.5

Step-by-step explanation:

Solve :  -2x - 10 =15

-2x - 10 = 15

-2x = 15 + 10

-2x = 25

x = -25/2

x = -12.5

6 0
3 years ago
Read 2 more answers
(4,8);m=3/4 pls help me ​
Crazy boy [7]

Answer:

y=3/4x+5

Step-by-step explanation:

4 0
3 years ago
Write sin 29 degrees 32 minutes in terms of it cofunction
12345 [234]

Answer:

Sin 29° 32' = Cos 60° 28'

Step-by-step explanation:

Here in this problem, we have to write Sin 29° 32' in terms of its co-function.

We know that co-function of Sin Ф = Cos ( 90° - Ф ).

Therefore, we have to find a complementary angle of 29° 32'.

So, ( 90° - 29° 32' ) = 60° 28'

Therefore, Sin 29° 32' = Cos 60° 28' ( Answer )

5 0
3 years ago
What is the measure of angle RPS?
liq [111]

Answer:

70

Step-by-step explanation: the type of angle it is

8 0
3 years ago
Read 2 more answers
Other questions:
  • IF A SUBSCRIPTION IS $499 PLUS 8% TAX FOR 30 DAYS, BUT IS BEING PRORATED FOR 7 DAYS, PLUS THERE IS A $10 OFF COUPON, WHAT'S THE
    13·2 answers
  • Jonna is 4 years older than her brother. Which of the following expressions shows the sum of their ages if b represents Jonna's
    8·1 answer
  • For the function m(n)=4n-7, when m is 9 what is n?
    15·1 answer
  • Demont used 4 gallons of gasoline in three days driving to work .Each day he used the same amount of gasoline. How many gallons
    10·1 answer
  • Sydney is going to a carnival that has games and rides
    6·2 answers
  • How do I find the measure of an angle
    15·1 answer
  • PLS HELP PLSPLSPLS thank you!!!!
    9·2 answers
  • I need help with the sloped there hard to understand sometimes
    10·2 answers
  • What is the answer of y=2x-6
    10·1 answer
  • Evaluate the following function from this rule:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!