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3 years ago

For 8x2 - 2x-3=0, a = 8, b=_

Mathematics

1 answer:

lianna [129]3 years ago

6 0

Answer:

A = 8 B = -2 C = -3

Step-by-step explanation:

The standard form for a quadratic equations is

Ax^2 + Bx +C =0

8x2 - 2x-3=0

A = 8 B = -2 C = -3

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What is the most efficient first step to isolate the variable term on one side of this equation?

Nat2105 [25]

Answer:subtract by 4x on each side first

Step-by-step explanation:

When you do so you'll get 5x on the left side of the equal sign and -5 on the right side. Next you would divide by 5 on both sides and this gives you x on the left side and -1 as your answer on the right side.

7 0

3 years ago

Read 2 more answers

Xavier and Ava are employees for a company. Xavier is making a salary of $42,700.

MrMuchimi

$62,342 is the salary earned by Ava.

Step-by-step explanation:

step 1 :

Xavier's salary = $42,700

step 2 :

Ava's salary = 46% higher than Xavier salary.

= 100% of Xavier salary + 46% of Xavier salary

= 146% of Xavier salary

step 3 :

Ava is earning a salary = (146/100) $\times$ 42,700

= 146 $\times$ 427

= 62,342

∴ Ava is earning a salary of $62,342.

7 0

3 years ago

Evaluate cube root of 5 multiplied by square root of 5 over cube root of 5 to the power of 5.

Andre45 [30]

Answer:

Option d) 5 to the power of negative 5 over 6 is correct.

$\dfrac{\sqrt[3]{\bf 5} \times \sqrt{\bf 5}}{\sqrt[3]{\bf 5^{\bf 5}}}= 5^{\frac{\bf -5}{\bf 6}}$

Above equation can be written as 5 to the power of negative 5 over 6.

ie, $5^\frac{\bf -5}{\bf 6}$

Step-by-step explanation:

Given that cube root of 5 multiplied by square root of 5 over cube root of 5 to the power of 5.

It can be written as below

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}= \dfrac{5^{\frac{1}{3}} \times 5^{\frac{1}{2}}}{5^{\frac{5}{3}}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}= \dfrac{5^{\frac{1}{3}+\frac{1}{2}}}{5^{\frac{5}{3}}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}= \dfrac{5^{\frac{2+3}{6}}}{5^{\frac{5}{3}}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}= 5^{\frac{5}{6}} \times 5^{\frac{-5}{3}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{\sqrt[3]{5^5}}= 5^{\frac{5-10}{6}}$

$\dfrac{\sqrt[3]{5} \times \sqrt{5}}{5^5}= 5^{\frac{-5}{6}}$

Above equation can be written as 5 to the power of negative 5 over 6.

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4 years ago

What is 2E + 40 - 16

Sauron [17]

Answer:

2e+24

Step-by-step explanation:

you cant ad variables so subtract what you can

6 0

3 years ago

A jar contains 93 marbles, of which 32 are blue, 20 are red, and the rest are green. What is the ratio of green marbles to all m

tangare [24]

Answer: 52:41

Step-by-step explanation:

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3 years ago