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Aleksandr [31]
3 years ago
14

If there are 8 questions and it is 5 points, if you get a 3.75 on it how many did you get wrong?

Mathematics
2 answers:
ipn [44]3 years ago
7 0
I think the answer is 21.66666667
Volgvan3 years ago
4 0

Answer:

21.66666667

thats the answer i think

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Need help with math problem if do 5 stars
Novosadov [1.4K]
Here it is I hope this is what u needed

6 0
2 years ago
Read 2 more answers
8x^2+23=823<br><br> whats going to be the answer I got 0 am I right?
Naily [24]
1) No; you are incorrect.  "0" is NOT a solution.

Plug in "0" for "x" ;

8*0² + 23 =? 823? ; 

8*0  + 23 =? 823? ;

  0 + 23 = ? 823 ? ;  No! ;  "0 + 23 = 23 " ; NOT "823" .
_________________________________________________
2)  The answers:  x = 10, -10 ; or, write as:  x = ± 10 .
_________________________________________________

To solve:

GIven:  8x² + 23 = 823 ; 

Subtract "23" from EACH SIDE of the equation:
_____________________________________________
           8x² + 23 - 23 = 823 - 23 ; 
to get:  
           8x²  = 800 ; 

Now, divide EACH SIDE of the equation by "8" ; 

          8x² / 8 = 800 / 8 ;

to get:  x² = 100 ; 

        Take the "square root" of EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x" ; 

          √(x²) = √(100) ;

             x  = <span>± 10 .

The answers:  x = 10, -10 ; or, write as:  x = </span><span>± 10 .
_____________________________________________________</span>
5 0
3 years ago
Can anybody find the measure of arc KL and arc JK?
lapo4ka [179]

Answer:

Arc KL = 30°

Arc JK = 90°

Step-by-step explanation:

Arc KL is a connected to a central angle with the measurement of 30°. Because it is a central angle, the arc's measurement will be the same as the central angle's measurement:

Arc KL = 30°

Arc JK is connected to a central angle that has a right angle measurement sign. A right angle = 90°. Because it is a central angle, the arc's measurement will be the same as the central angle's measurement:

Arc JK = 90°

~

7 0
3 years ago
Read 2 more answers
A triangular flower bed is to be created. The following figure represents the layout of the flower bed. How many feet of landsca
VladimirAG [237]

Answer:

8 feet

Step-by-step explanation:

The diagram is attached below.

Note that the values are different but the diagram is similar. In this case,

Hypotenuse =17ft

Adjacent = 15²

Required

Opposite side

To get the feet of landscape edging would be required to outline the edge of the bed, we will use the Pythagoras theorem as shown;

Hyp² = Opp²+Adj²

Opp² = Hyp²-Adj²

l² = 17²-15²

l² = 289-225

l² = 64

l = √64

l = 8feet

Hence the feet of landscape edging would be required to outline the edge of the bed is 8 feet

8 0
3 years ago
Which is the expression 4 x 4 x4 x 3 x 3 x 2 x 2 x 2 x 2 written using<br> exponents?
algol [13]
4^3 x 3^2 x 2^4 is that answer to the question
6 0
3 years ago
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