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Oxana [17]
3 years ago
13

49x^2 -_x + 16 Can someone help with the missing number

Mathematics
2 answers:
belka [17]3 years ago
8 0

Answer:

Step-by-step explanation:

4x² + 28x + 49

4x² + 14x + 14x + 49

2x(2x) + 2x(7) + 7(2x) + 7(7)

2x(2x + 7) + 7(2x + 7)

(2x + 7)(2x + 7)

(2x + 7)²

= 28

mihalych1998 [28]3 years ago
5 0

Step-by-step explanation:

I'm guessing this is competing the perfect square

so it's 56

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Which is the BEST estimate of the average rate of change for the function given in the table, over the interval 2 ≤ x ≤ 4?
ladessa [460]

Answer:

6

Step-by-step explanation:

Use the slope formula:

m = \frac{y_2-y_1}{x_2-x_1}

Picking x = 2 and x  = 4 as my two points (since the interval is 2 ≤ x ≤ 4), we get:

m = \frac{15-3}{4-2} = \frac{12}{2} = 6

So, the BEST estimate of the average rate of change for the function given in the table is 6.

3 0
3 years ago
Read 2 more answers
Please Show Work
leonid [27]

Answer:

1] B

2] C

Step-by-step explanation:


7 0
4 years ago
Simplify (8x^3-5x-1)-(7x^2+6x-10)
irakobra [83]

Answer:

8x^3-7x^2-11x+9

Step-by-step explanation:

(8x^3-5x-1)-(7x^2+6x-10)

remove unnesasary ( )

8x^3-5x-1 -(7x^2+6x-10)

the distribute

8x^3-5x-1 -7x^2-6x+10

combine like terms

8x^3-11x+9-7x^2

use the communative property to reorder the equation

8x^3-7x^2-11x+9

4 0
3 years ago
If the amount of vat paid by a customer while buyong a bag at 13℅ vat rate rs 143 ,find the cost of bag without vat​
Darya [45]

Step-by-step explanation:

vat %=13%

vat=143

vat = vat% of sp (i.e sp without vat)

143 = 13/ 100 of sp

143*100=13sp

14300/13 = sp

sp=4766.67

therefore the cost of bag without vat is rs.4766.67

6 0
3 years ago
PLEASE DIE TODAY I NEED MY GRADE UP it is not 12.5 this is my last attempt I think 15 points
Volgvan

Answer:

25%

Step-by-step explanation:

1/2 ×1/2

=1/4

=0.25

which is 25%

7 0
3 years ago
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