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
sergeinik [125]
3 years ago
13

(Affgfbwg I’m struggling) Find the value of x in the isosceles triangle shown below

Mathematics
1 answer:
Nady [450]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The line from the vertex to the base is a perpendicular bisector and divides the isosceles triangle into 2 right triangles with hypotenuse x

Using Pythagoras' identity in either of the 2 right triangles, then

x² = 12² + 5² = 144 + 25 = 169 ( take the square root of both sides )

x = \sqrt{169} = 13 → B

You might be interested in
a big cruise ship dropped anchor off the Caribbean island of antigua. the heavy anchor dropped into the water at a rate of 2.5 m
AysviL [449]

Falling at the rate of 2.5 m/s for 45 seconds, the anchor fell

                                     (2.5 m/s) x (45 s)  =  112.5 meters .

If it wound up only 40 meters underwater, then it must have fallen

                                      (112.5 m  -  40 m)  =  72.5 meters

from its storage position on the big cruise ship, 
before it ever reached the water.

Since it was falling at the rate of  2.5 m/s, it took

                                     (72.5 m) / (2.5 m/s)  =  29 seconds

to get down to the water surface after it started dropping.

6 0
3 years ago
LuANN is playing a math game. She chooses 3 cards. The value of her cards is hownn below
Rufina [12.5K]
I believe it is -14 :)
6 0
2 years ago
Eric bought a canoe for $329.99. The sales tax was 5%. What is the total cost including tax?
Olin [163]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
(2 points) An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans have brown eyes. A
lara31 [8.8K]

Answer: a) z=1.43

b) 0.1528

Step-by-step explanation:

The given set of hypothesis :

H_0:p=0.45

H_a:p\neq0.45

Since the alternative hypothesis H_a is two-tailed , so we perform two-tailed test.

Also, it is given that : A random sample of n=76 Americans found 28 with brown eyes.

Sample proportion: \hat{p}=\dfrac{28}{76}=0.3684

a) The z-statistic would be :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

\Rightarrow\ z=\dfrac{0.3684-0.45}{\sqrt{\dfrac{0.45(1-0.45)}{76}}}=-1.4299121397\approx-1.43

b) P-value for two-tailed test = 2P(Z>|z|)= 2P(z>|-1.43|)

=2P(z>1.43)

=2(1-P(z≤1.43)

=2-2P(z≤1.43)

= 2-2(0.9236)[Using standard z-table]

= 2-1.8472=0.1528

Hence,  the P-value of the test= 0.1528

6 0
3 years ago
Change 5.5 into centimetres
jolli1 [7]
5.5 inches? If so 13.97 cm.
8 0
3 years ago
Other questions:
  • a rope that measures 3.98 meters is cut into two pieces. if one peice measures 1.425 meters, what is the length of the other pie
    8·1 answer
  • Plz.....Length: 10cm Width: 4cm Height: 15cm what is the surface area of this box
    9·2 answers
  • Julia invested $4,000.00 in a mutual fund with the simple interest rate of 3.5% per year. How much interest would she earn after
    7·2 answers
  • A teacher has 4 students and 18 cookies. How many cookies does each student gets?
    8·2 answers
  • Can someone Help me please
    15·1 answer
  • What is the value of XY/z if x=1 y=-10 and z=2<br> A.5<br> B.-5<br> C.1/5<br> D.-1/5
    15·2 answers
  • Richard &amp; Tanjeev share a lottery win of £5650 in the ratio 4 : 1. Richard then shares his part between himself, his wife &a
    6·1 answer
  • 1. A large cheese pizza at Joe’s Pizzeria costs $0.25 for each topping plus a flat fee of $10.00. The cost of a large cheese piz
    6·1 answer
  • 16 x + 4 y = − 6<br><br> 8 x + 2 y = 0
    9·1 answer
  • Evaluate 5 · (x – 3) when x = 10.<br> 
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!