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Julli [10]
3 years ago
13

I need help please and urgent!

Mathematics
1 answer:
Veronika [31]3 years ago
8 0

Answer:

the answer is blurry for me take a picture again

Step-by-step explanation:

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A 15.6 inch laptop is featured in a sale ad for $799. This distance is the diagonal distance across the screen. If the screen me
AfilCa [17]

4 and 15 and 4 ,2

hope I helped!


3 0
3 years ago
Read 2 more answers
A2-b2 ÷5a-5b factorise​
katrin2010 [14]

Answer:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP

1

:

           5a + 5b

Simplify   ———————

           a2 - b2

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  5a + 5b  =   5 • (a + b)  

Trying to factor as a Difference of Squares:

2.2      Factoring:  a2 - b2  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  a2  is the square of  a1  

Check :  b2  is the square of  b1  

Factorization is :       (a + b)  •  (a - b)  

Canceling Out :

2.3    Cancel out  (a + b)  which appears on both sides of the fraction line.

Final result :

   5 / a -b  

 

 

Step-by-step explanation:

3 0
3 years ago
What is the measure of the missing angle? The answer is NOT even. Completely lost.
-Dominant- [34]

The little square in the top left corner means it is a right angle which equals 90 degrees.

The bottom angle is given as 56.7 degrees.


The three inside angles of a triangle need to equal 180 degrees.


The missing angle = 180 - 90 - 56.7 = 33.3 degrees




6 0
3 years ago
Find the missing side
mr_godi [17]

Answer:

Step-by-step explanation:

c^2 = a^2 - b^2

13^2 - 5^2 = -12

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!! PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!! I NEED TO FINISH THESE QUESTIONS BEFORE MIDNIGHT TONIGH
Nadusha1986 [10]

Answer:

CD = 7.8

Step-by-step explanation:

Given:

Δ DBC is a right angled triangle.

\angle B = 90\°\\\\\angle C = 59\°

BC = 4

We need to find the value of CD

Solution:

Now we know that:

cos\  \theta = \frac{adjacent \ side}{hypotenuse}

So we can say that;

Cos \angle C =\frac{BC}{CD}

Substituting the given values we get;

Cos\ 59 = \frac{4}{CD}\\\\\\CD = \frac{4}{Cos\ 59} = 7.766

Rounding to nearest tenth we get;

CD = 7.8

Hence the Value of CD is 7.8.

8 0
3 years ago
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