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3 years ago

Consider the derivation of the quadratic formula below. What is the missing radicand in Step 6?

Mathematics

1 answer:

notka56 [123]3 years ago

3 0

The correct answer is d

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Find the value of x. A 28 20 B 9x – 8 С

natulia [17]

Answer:

The question is incorrect. please provide a diagram.

4 0

3 years ago

3. Bob the Builder wants to earn an annual rate of 10% on his investments,

mamaluj [8]

Answer:

He should pay $2,790.7.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time, in years.

After t years, the total amount of money is:

$T = E + P$

In this question:

Rate of 10%, so I = 0.1.

9 months, so $t = \frac{9}{12} = 0.75$

How much should he pay for a note that will be worth $3,000 in 9 months?

We have to find P for which T = 3000. So

$T = E + P$

$3000 = E + P$

$E = 3000 - P$

Then

$E = P*I*t$

$3000 - P = P*0.1*0.75$

$1.075P = 3000$

$P = \frac{3000}{1.075}$

$P = 2790.7$

He should pay $2,790.7.

8 0

3 years ago

The square root of 71 can be found between which two consecutive whole numbers?

love history [14]

The square root of 71 is equal to 8.426149773176359...., which is between 8 and 9.

To check: square of 8 is 64, and of 9 is 81: 71 is between those two numbers, as it should be.

7 0

3 years ago

What is y=3x-4and y=x-2

IrinaVladis [17]

Answer:

x= 1

y= -1

Hope this helps!

Step-by-step explanation:

1 Substitute y=3x−4 into y=x-2

3x-4=x-2

2 Solve for x in 3x-4=x-2

x=1

3 Substitute x=1 into y=3x-4

y=-1

4 Therefore,

x=1

y=-1

3 0

3 years ago

A fraction bar. The top bar is labeled 1. 4 bars underneath the bar are labeled one-fourth. 5 bars underneath the 4 bars are lab

joja [24]

Answer:

Step-by-step explanation:

$3/4$ * $5/2\$ = $15/8 = 1 \frac{7}{8}$

6 0

2 years ago