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Illusion [34]
3 years ago
13

">+11x-42
Mathematics
1 answer:
Anastasy [175]3 years ago
7 0

Answer:

 x = 3   And    x = - 14

Step-by-step explanation:

Given expression as :

x^{2}+ 11x - 42 = 0

Or, x^{2}+ 14x - 3x - 42 = 0

Or,  x (x + 14) - 3 (x + 14) = 0

Or,      (x + 14)   (x - 3 ) = 0

I.e       (x + 14 ) = 0    And  (x - 3 ) = 0

∴      x = 3   And    x = - 14       Answer

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Hakim saves money for one year to buy a computer.
elena55 [62]

Answer:

$111

Step-by-step explanation:

First we need to take a look at the bank account of Hakim. Hakim initially invested $700 in the bank with a 5% simple interest annually. Since Hakim waited for an entire year before buying the computer, he will then have the extra 5% interest from the bank.

Let's first compute for how much Hakim will have in total in the bank.

A = P(1 + rt)

P = 700 Initial Investment

r = 5% or 0.05 Interest

t = 1 Year

A = 700(1 + (0.05 x 1))

A = 700(1 + 0.05)

A = 700(1.05)

A = 735

So now we know that Hakim has a total of $735 in his bank account.

Now let's move on to calculating the total cost of the computer. We know that the sales tax is always computed after the discounted price.

So first we find the discounted price.

x = 750

d = 20% or 0.20

Discount = 750 x 0.20

Discount = 150

Now that we have the discount of the computer, we then simply subtract the discount to the initial price.

750 - 150 = 600.

The computer will then cost $600 with the discounted price.

Now we have to find the sales tax.

Sales Tax = 4% or 0.04

Total Discounted Price = 600

600 x 0.04 = $24

Now that we have the sales tax, we simply add the sales tax to the discounted price.

600 + 24 = 624.

Now that we know how much the total cost of the computer is with the discount and sales tax, we simply subtract the total cost of the computer to Hakim's current account balance.

735 - 624 = 111

Hakim will have a total of $111 in his bank account after purchasing the computer.

4 0
3 years ago
Find the measure of each angle in degrees and radians part 2​
melamori03 [73]

Left) 4×pi-2×pi/3=10×pi/3 (rad)

720-120=600⁰

Right) 2×pi (rad)

360⁰

4 0
3 years ago
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ASHA 777 [7]

Answer:

WHATS THE OTHER NUMBERS U ONLY PUT D E F G WHERE IS A B AND C

5 0
3 years ago
Is the triangle a right triangle?use the Pythagorean theorem and its converse to explain why or why not.
pantera1 [17]

Answer:

i believe it is f

Step-by-step explanation:

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3 years ago
HELPPPPPPPP What is angle “BEC” ??
murzikaleks [220]

Answer:

since BEC is an equilateral triangle, then each of its angles is equal to 60 degrees. what you get is: angle BEC = 60 degrees.

Step-by-step explanation:

5 0
3 years ago
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