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Tamiku [17]
2 years ago
13

Use suitable identity and find the product of: (2a-7)(2a-7)

Mathematics
2 answers:
NeTakaya2 years ago
5 0

\\ \sf\longmapsto (2a-7)(2a-7)

\\ \sf\longmapsto (2a-7)^2

  • (a-b)^2=a^2+b^2-2ab

\\ \sf\longmapsto 2a^2-2(2a)(7)+49

\\ \sf\longmapsto 4a^2-28a+29

Georgia [21]2 years ago
3 0

Answer:

=4a2−28a+49

Step-by-step explanation:

(2a−7)(2a−7)

=(2a+−7)(2a+−7)

=(2a)(2a)+(2a)(−7)+(−7)(2a)+(−7)(−7)

=4a2−14a−14a+49

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Quinton bought x number of shares for p dollars and paid a 0.5% commission. He sold the stock for y dollars and paid a flat fee
Ksju [112]

Answer:

y-(0.05xp+7)

Step-by-step explanation:-

As per the statement:

Quinton bought x number of shares for p dollars and paid a 0.5% commission

⇒0.05xp

It is also given that: He sold the stock for y dollars and paid a flat fee of $7.

⇒y-7

then;

Net proceeds is given as:

y-7-0.05xp = y-(0.05xp+7)

Therefore, Quinton's net proceeds algebraically is y-(0.05xp+7)

4 0
3 years ago
Miranda made 6.88 pounds of trail mix. She used 4.96 pounds of granola for the mix. Miranda wrote the equation w + 4.96 = 6.88 t
joja [24]

Step 1: to solve this equation first subtract 4.9 from both sides.

w + 4.9 - 4.9 = 6.88 - 4.9

When you reduce that your answer should be w = 1.92

Therefore the weight of ingredients other than granola in Miranda's trail mix is 1.92

5 0
3 years ago
This maximization linear programming problem is not in "standard" form. It has mixed constraints, some involving ≤ inequalities
stellarik [79]

Answer: See Annex

z (max)  = 190

x = 10

y = 20

Step-by-step explanation:

z = 5*x  +  7*y     to maximize

Subject to:

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5 0
3 years ago
What does 9n-2<7+20 equal?​
ikadub [295]

Answer:

n

n ≈ 3

Step-by-step explanation:

9n-2<7+20

9n-2

4 0
3 years ago
Trigonometry need help on this one
morpeh [17]

Answer:

Step-by-step explanation:

you have a right triangle, more precisely is a isosceles right triangle, as you have one angle= 45⁰, the other angle is also= 45⁰

In this triangle the hypotenuse, c, is

c=9\sqrt{2}= 12.72

7 0
3 years ago
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