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2 years ago

I can’t answer this problem this is hard for me can I please get help

Mathematics

2 answers:

Ksivusya [100]2 years ago

8 0

Answer:

3/-2

Step-by-step explanation:

the way i learned how to find slope from a table was to calaucate 2 points.usually the first 2 pairs. so in your table you would take the points(1,8)&(3,5) then you subtract your x&ys.

1-3&8-5 then your x goes on bottem and y on top.

1-3=-2

8-5=3

slop is 3/-2

see how i wrote it out in the picture.

k0ka [10]2 years ago

7 0

M=1.5 because the slope formula is m=y2-y1/x2-x1

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12 is what percentage of 80

PIT_PIT [208]

Answer: " 15 % " .

_______________________________

→ " 12 is  15%  of 80 " .

_______________________________

Step-by-step explanation:

_______________________________

12 = (n/100) * 80 ;

12 = (80n) /100 ; Solve for "n:

Note: 80/100 = (80/10) / (100/10) = (8/10) = 0.8 ;

12 = (0.8)n ;

↔ (0.8n) = 12

Multiply each side of the equation by "10" ; to get rid of the "decimal" ;

10 * (0.8n) = 10 * 12 ;

to get:

_______________________________

8n = 120 ;

Divide each side of the equation by "8" ;

to isolate "n" on ONE SIDE of the equation; & to solve for "n" ;

8n/8 = 120/ 8 ;

_______________________________

to get:

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n = 15 .

_______________________________

Answer: " 15 % " .

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→ " 12 is  15%  of 80 " .

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Hope this helps!

Best wishes!

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4 0

3 years ago

Helppp and explain too

kozerog [31]

Answer:

the first option

Step-by-step explanation:

I have attached the explanation. hope this help

5 0

2 years ago

Factor completely. 16n^6+40n^3+25

Andru [333]

Answer:Step 1 :

Equation at the end of step 1 :

((16 • (n6)) + (23•5n3)) + 25

Step 2 :

Equation at the end of step 2 :

(24n6 + (23•5n3)) + 25

Step 3 :

Trying to factor by splitting the middle term

3.1 Factoring 16n6+40n3+25

The first term is, 16n6 its coefficient is 16 .

The middle term is, +40n3 its coefficient is 40 .

The last term, "the constant", is +25

Step-1 : Multiply the coefficient of the first term by the constant 16 • 25 = 400

Step-2 : Find two factors of 400 whose sum equals the coefficient of the middle term, which is 40 .

-400 + -1 = -401

-200 + -2 = -202

-100 + -4 = -104

-80 + -5 = -85

-50 + -8 = -58

-40 + -10 = -50

-25 + -16 = -41

-20 + -20 = -40

-16 + -25 = -41

-10 + -40 = -50

-8 + -50 = -58

-5 + -80 = -85

-4 + -100 = -104

-2 + -200 = -202

-1 + -400 = -401

1 + 400 = 401

2 + 200 = 202

4 + 100 = 104

5 + 80 = 85

8 + 50 = 58

10 + 40 = 50

16 + 25 = 41

20 + 20 = 40 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 20 and 20

16n6 + 20n3 + 20n3 + 25

Step-4 : Add up the first 2 terms, pulling out like factors :

4n3 • (4n3+5)

Add up the last 2 terms, pulling out common factors :

5 • (4n3+5)

Step-5 : Add up the four terms of step 4 :

(4n3+5) • (4n3+5)

Which is the desired factorization

Trying to factor as a Sum of Cubes :

3.2 Factoring: 4n3+5

Theory : A sum of two perfect cubes, a3 + b3 can be factored into :

(a+b) • (a2-ab+b2)

Proof : (a+b) • (a2-ab+b2) =

a3-a2b+ab2+ba2-b2a+b3 =

a3+(a2b-ba2)+(ab2-b2a)+b3=

a3+0+0+b3=

a3+b3

Check : 4 is not a cube !!

Step-by-step explanation: I believe that is the answer because i got it right.

6 0

3 years ago

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Which of the following is a prime number? Select one: A. 19 B. 20 C. 21 D. 22

nexus9112 [7]

Answer: a. 19

Step-by-step explanation:

it only has 1 and itself

6 0

2 years ago

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What is the value of h when the function is converted to vertex form?

Dmitrij [34]

Answer: The value of 'h' is 3.

Step-by-step explanation: Given that the vertex form of a function is given by

$g(x)=a(x-h)^2+k~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We are to find the value of 'h' when the following function is converted to the vertex form.

$g(x)=x^2-6x+14~~~~~~~~~~~~~~~~~~~~~~(ii)$

From equation (ii), we have

$g(x)=x^2-6x+14\\\\\Rightarrow g(x)=x^2-2\times x\times 3+3^2-3^2+14\\\\\Rightarrow g(x)=(x-3)^2-9+14\\\\\Rightarrow G(x)=(x-3)^2+5.$

Comparing it with the vertex form (i), we get

$h=3.$

Thus, the value of 'h' is 3.

4 0

3 years ago