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barxatty [35]
3 years ago
9

Evaluate 3/2y-3+5/3z when y=4 and z=3

Mathematics
1 answer:
Schach [20]3 years ago
6 0

Answer:

-2 5/72

Step-by-step explanation:

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Suppose the average number of rainy days in albuquerque in september is about 7. what is the probability that in september 2017,
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1/62 chance of 10 rainy days
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mihalych1998 [28]
-12/-9=y/-4
cross multiply

-9y=48
divide by 9 on each side 

y= -5.33
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3 years ago
What is the slope of the line, y=5−4x?
hoa [83]

Answer:

(m) =  

ΔY

ΔX

= 0

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
PLZ HELP, AND PLZ EXPLAIN
shutvik [7]

Answer:

C

Step-by-step explanation:

To make it easy let's start by organizing our information :

  • AC=12 AND BD=8
  • ABCD is a rhombus
  • K and L are the midpoints of sides AD and CD
  • we notice that the rhombus ABCD is divided into four right triangles

What do you think of when you hear a right triangle ?

  • The pythagorian theorem !

AC and BD  are khown so let's focus on them .

If we concentrated we can notice that AB and BD are cossing each other in the midpoints . why ?

Simply because they are the diagonals of a rhombus .

ow let's apply the pythagorian theorem :

  • (AC/2)² + (BD/2)² = BC²
  • 6²+4²=52
  • BC²= 52⇒\sqrt{52}=BC

Now we khow that : AB=BC=CD=AD=\sqrt{52}

This isn't enough . Let's try to figure out a way to calculate the length of KL  wich is the base of the triangle

  • KL is parallel to AC
  • k is the midpoint of AD and L of DC

I smell something . yes! Thales theorem

  • KL/AC=DL/DC=DK/AD WE4LL TAKE OLY ONE
  • KL/12=\sqrt{52}/2*\sqrt{52}  
  • KL/12=1/2⇒ KL=6

Now we have the length of the base kl

Now the big boss the height :

  • notice that you khow the length of KL
  • BD crosses kl from its midpoint and DL = \sqrt{52} /2

What I want to do is to apply the pythgorian thaorem to khow the lenght of that small part that is not a part of the height of the triangle . I will call it D

  • DL²=(KL/2)²+D²
  • 52/4= 9+ D²
  • D² = 52/4-9 +4 SO D=2

now the height of the trigle is H= BD-D= 8-2=6

NOw the area of the triangle is :

  • A=(KL*H)/2 ⇒ A= (6*6)/2=18

THE ANSWER IS 18 SQ.UN

5 0
3 years ago
Can anyone help I do t know how to find all seven angles
Svetllana [295]

Answer:

1. 110

2. 70

3. 70

4. 110

5. 110

6. 70

7. 70

Step-by-step explanation:

when to lines cross, opposite angles are equal so like 1 and 4 are equal

1, 4, and 5 are equal to 110

to find 2, 3, 6, and 7, subtract 110 from 180

7 0
3 years ago
Read 2 more answers
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