3 years ago

Which the following expressions is equivalent( a + b)(a-b)?

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

8 0

Answer:

Step-by-step explanation:

(a+b)(a-b)=a^2-b^2

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What is the sum of -3 and -1

noname [10]

Answer:

-4

Step-by-step explanation:

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4 years ago

50 cm = .... m a. 50 x 106 m b. 50 x 10-3 m c. 50 x 101 m d. 50 x 10-2 m

VLD [36.1K]

9514 1404 393

Answer:

d. 50 x 10^-2 m

Step-by-step explanation:

"c" is the SI prefix for "centi-" meaning one hundredth, or 10^-2. Then ...

50 cm = 50×10^-2 m

8 0

3 years ago

8 times 4/3 times a = 8

stepladder [879]

Answer:

$\frac{3}{4}$

Step-by-step explanation:

$8 \times \frac{4}{3} \times a = 8$

$8a = 8 \div \frac{4}{3}$

$8a = 6$

$a = \frac{3}{4}$

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3 years ago

Simplify <br> (5x2 + 3x + 4) − (2x2 − 6x + 3)

dangina [55]

Answer is <span>7x^2-3x+7
hope this helps</span>

5 0

4 years ago

Read 2 more answers

Determine the final amount after 20 years with a 5% annual interest rate if:you invest $10 000 in an account that earns compound

alekssr [168]

Answer:

$27,014.85

Step-by-step explanation:

We're gonna use the compound interest formula: P = A(1 + r/n)^nt

P = final amount

A = starting amount (10,000)

r = rate (0.05)

n = times applied (4 since it's quarterly)

t = years (20)

P = 10,000(1 + 0.05/4)^4*20

P = 10,000(1.0125)^80

P = 27,014.84940753337

Round it to just 27,014.85

4 0

3 years ago