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3 years ago

How do I factor 2x squared -9 -5=0

Mathematics

1 answer:

Gelneren [198K]3 years ago

6 0

Factor and set each factor equal to zero and you'll get 9√2 over 9√5 or x≈0.90320107 I hope I helped

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What is negative 3 times 67

BartSMP [9]

Negative 34 means (-34)

times means to multiply, then

$-34\times1567$

To do it without a calculator we will make -34

-30 + -4, then multiply -30 by 1567 and multiply -4 by 1567 then add the two answers

$-4\times1567=-6268$ $-30\times1567=-47010$

Then add the answers

$-34\times1567=-6268+-47010=-53278$

The answer is -53278

7 0

1 year ago

Read 2 more answers

Find m∠U. Write your answer as an integer or as a decimal rounded to the nearest tenth.

NemiM [27]

This is the steps how i solved it.

the answer is 39.8

3 0

3 years ago

Can u guys PLEASE answer this question ASAP.

Andrej [43]

Answer:

1. Interest: $166.67

Principal: $6,166.67

2. Interest: $200.00

Principal: $5,200.00

Explanation:

1. $6000 for 50 days at 20% p.a

In 20% pa, pa means "per annum", i.e. "per year".

Assume simple interest:

Principal: $6,000

interest: 20% pa

time = 50 days

Interest:

Interest = Principal × number of days × annual rate / 360

Interest = $6,000 × 50 × 20% / 360 = $166.67

Principal = principal + interest = $6,000 + $166.67 = $6,166.67

2. $5000 for 5 months at 0.8% per month

Assume, again, simple interest.

Principal: $5,000

interest: 0.80% per month

time = 5 months

Interest:

Interest = Principal × number of months × montly rate

Interest = $5,000 × 5 × 0.80% = $200.00

Principal = principal + interest = $5,000 + $200.00 = $5,200

You can see that the accrued interests depend on the principal, the interest rate, and the time.

8 0

3 years ago

What is the maximum number of possible extreme values for the function, f(x) = х2 -7x – 6?

timama [110]

Answer:

Only one extreme value of f(x) is possible.

Step-by-step explanation:

We are given the quadratic function of independent variable x which is f(x) = x² - 7x - 6 ......(1)

Now. the condition for extreme values of f(x) is $\frac{df(x)}{dx} =0$

Hence, differentiating both sides of equation (1) with respect to x, we get

$\frac{df(x)}{dx} = 2x -7$ = 0

⇒ x = 3.5.

So there is only one value of x for which f(x) has extreme value which is x = 3.5.

Therefore, only one extreme value of the given function is possible. (Answer)

3 0

3 years ago

Aidan is participating in an 8 mile walk for his favorite charity. The organizers used a coordinate grid to plot the course. The

Travka [436]

Answer:

Aidan is 2 miles far from the ending point when he reaches the water station.

Step-by-step explanation:

The locations of the starting point, water station and ending point are (3, 1), (3, 7) and (3, 9), all expressed in miles. First we determine the distances between starting and ending points and between starting point and water station by the Pythagorean Theorem:

From starting point to ending point:

$D = \sqrt{(3-3)^{2}+(9-1)^{2}}$ (Eq. 1)