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Leto [7]
3 years ago
12

The expression 2x+(x-7)^2 is equivalent to x^2+bx+49 for all the values of x. what is the value of b?

Mathematics
1 answer:
a_sh-v [17]3 years ago
7 0

Answer:

Step-by-step explanation:

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The original price of a pair of shoes is $42. The sale price is 20% off the original price. What is the amount off the original
GREYUIT [131]

Answer:

a) What is the amount off the original price?

= $8.4

b) What is the new price for the pair of shoes?

= $33.6

Step-by-step explanation:

a) What is the amount off the original price?

We are told that:

The sale price is 20% off the original price.

Original price = $42

Hence:

$42 × 20%

$42 × 20/100

= $8.4

b) What is the new price for the pair of shoes?

The new price =

0riginal price - Amount off the original price

= $42 - $8.4

= $33.6

The original price = $33.6

8 0
3 years ago
A truck driver drove 300 miles in 6 3/4 hours. How many miles per hour did the driver drive?
Andru [333]
44.4 miles per hour. You just divide 300 and 6.75 (Think as the 3/4 as quarters each 1 is .25)  then you will get 44.4. To check your answer you would multiply 44.4 and 6.75 and get 299.7. This is not 300 but when you round that .7 to the nearest 10 you will get 300. Hope this helped.<span />
3 0
3 years ago
Read 2 more answers
PLZ PLZ HELP ITS URGENT!!!! 
arlik [135]
Given:
Equilateral triangle: height = 2.6 inches ; base or side length = 3 inches
Rectangle: length = 6 inches ; width = 3 inches

1 name plate has 2 equilateral triangle and 3 rectangles.
Surface area of an equilateral triangle = √3/4 * a² = √3/4 * 3² = 3.9 in²

3.9 in² x 2 = 7.8 in²

Surface area of a rectangle = 6 in * 3 in = 18 in²

18 in² x 3 = 54 in²

7.8 in² + 54 in² = 61.8 in²

61.8 in² x 30 nameplates = 1,854 in²  Choice A.
7 0
3 years ago
a cube has edge length 10 cm. starting at the vertices dots are placed along every edge at 1cm intervals. how many dots will the
Tamiku [17]

Answer:

120 dots

Step by step explanation:

3 0
3 years ago
What is the answer 5(x-4)=3x+4
ruslelena [56]

Step-by-step explanation:

Simplify the left side:

5x - 20 = 3x + 4

Move all terms containing  x  to the left side of the equation:

2x - 20 = 4

Move all terms not containing  x  to the right side of the equation:

2x = 24

Divide each term by  2  and simplify:

x = 12

4 0
3 years ago
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