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zubka84 [21]
3 years ago
11

What is the answer to (7k+8)(7k-6)

Mathematics
2 answers:
marishachu [46]3 years ago
5 0
(7k+8)(7k-6)
=49k²+56k-42k-48
=49k²-12k-48 This is the answer if you want it expanded

K=(-8/7) , (6/7) answer if the equation is equal to 0
Gennadij [26K]3 years ago
4 0
7k•7k-7•6k+7•8k-8•6=
49k^2 -42k+56k-48=
49k^2 -14k-48
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Evaluate f(x)=2x-5 for x=3
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F(x)=2(3)-5
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3 years ago
Mr Teo wants to buy an oven. Which shop sells the oven at a lower price? Show your working clearly.​
Oliga [24]

Answer:

Shop B

Step-by-step explanation:

Hi there!

To solve this question, we can find the new prices of each oven and identify which one is cheaper.

<u>Shop A</u>

Usual price: $190

Discount: 15%

First, we must subtract the discount percent from 100:

100 - 15 = 85

Therefore, the new price of the product will be 85% of the original price. Find 85% of $190:

190 × 0.85

Therefore, the new price is $161.50.

<u>Shop B</u>

Usual price: $200

Discount: 20%

Again, subtract 20 from 100:

100 - 20 = 80

This means that the new price of the oven is 80% of the original price:

200 × 0.8 = 160

Therefore, the new price is $160.

Because a $160 oven is cheaper than a $161.50 oven, Shop B sells the oven at a lower price.

I hope this helps!

6 0
2 years ago
Read 2 more answers
63x^12-35x^6 help pls
zmey [24]

Answer:

7x^6×(9×^6-5)

Step-by-step explanation:

63x^12-35x^6

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7 0
3 years ago
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weqwewe [10]
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8 0
2 years ago
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What is the solution to the equation 6y –2(y + 1) = 3(y – 2) + 6?
tensa zangetsu [6.8K]

Answer:

y = 2

Step-by-step explanation:

6y - 2(y + 1) = 3(y - 2) + 6

6y - 2y - 2 = 3y - 6 + 6

6y - 2y - 2 = 3y

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y = 2

6 0
2 years ago
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