3 years ago

What is the value of A and B (5x + b)(5x - b) = ax^2 - 49

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

6 0

Answer:

a=25

b=7

Step-by-step explanation:

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brilliants [131]

Answer:

Step-by-step explanation:

Its D because A is all 90 degrees

Not C because all 90

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3 years ago

Neal opened a savings account 11 years ago with a deposit of $2,335.69. The account has an interest rate of 4.3% compounded dail

Vinvika [58]

Answer: $1,412.52

Step-by-step explanation:

Formula to calculate the accumulated amount if P principal invested for t years at a rate of interest r that compounded daily is given by:-

$A=P(1+\dfrac{r}{365})^{365t}$

Given: P= $2,335.69

r= 4.3%= 0.043

t= 11 years

Then,

$A=2335.69(1+\dfrac{0.043}{365})^{365\times11}\\\\=2335.69(1+0.000117808219178)^{4015}\\\\=2335.69(1.000117808219178)^{4015}\\\\= 2335.69(1.6047566747)\\\\=3748.09044309\approx3748.21\\\\\Rightarrow\ A=\$3748.21$

Interest earned = A-P

= $3748.21- 2335.69.

= $1412.52

Hence, Neal earned $1,412.52 as interest.

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3 years ago

When pay rate is $14/hr and an employee has a 15 minutes added to an hour, how much?

hram777 [196]

Answer:

$3.50

Step-by-step explanation:

15 min is 1/4 hr.

Working an add'l 1/4 hr brings the employee additional pay:

($14/hr)(1/4 hr) = $7/2, or $3.50

6 0

3 years ago

On Kathleen's credit card statement get last balance was $89.70. She made a payment of $20, had new charges totaling $32.11, and

Leona [35]

Hi there

Amount financed
89.70−20=69.7

Finance charge
69.7×(0.0123)=0.86

New balance
Previous balance-payment+finance charge+New charge (new transaction)
89.7−20+0.86+32.11
=102.67

Hope it helps

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3 years ago

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aivan3 [116]

Answer:

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Step-by-step explanation:

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3 years ago