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3 years ago

7

Tanya is training a turtle for a turtle race. For every of an hour that the turtle is crawling, he can travel of a mile. At what

unit rate is the turtle crawling?

1 answer:

Romashka-Z-Leto [24]3 years ago

7 0

I think you meant half when you said of right... if u did the answer is <span>2/25 divided by 1/2 wich is .04</span>

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For question 25 please pick 1,2,3 or 4

Juli2301 [7.4K]

Answer:

4.

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

Step-by-step explanation:

$18x^2-24x+87=0$

Using Quadratic Formula

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-\left(-24\right)\pm \sqrt{\left(-24\right)^2-4\cdot \:18\cdot \:87}}{2\cdot \:18}$

Solving the discriminant:

$\Delta = \left(-24\right)^2-4\cdot \:18\cdot \:87\\\Delta = 576-6264\\ \Delta=-5688$

$x= \frac{24 \pm \sqrt{-5688} }{36}$

$x= \frac{24 \pm \sqrt{5688i} }{36}$

Once $\sqrt{5688} =\sqrt{2^3\cdot \:3^2\cdot \:79}=6\sqrt{158}$

$x=\frac{24\pm6\sqrt{158}i}{36}$

Dividing the denominator and numerator by 6

$x=\frac{4\pm \sqrt{158}i}{6}$

Now rewrite it:

$x=\frac{4}{6} \pm i\frac{\sqrt{158}}{6}$

$x=\frac{2}{3} \pm i \frac{\sqrt{158}}{6}$

or

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

5 0

3 years ago

Which is the graph of x Greater-than-or-equal-to 98.6? A number line going from 95 to 103. A closed circle is at 98.6. Everythin

DENIUS [597]

Answer:

A number line going from 95 to 103. A closed circle is at 98.6. Everything to the right of the circle is shaded.

Step-by-step explanation:

We want to determine the graph of $x\geq 98.6.$

Since we have the sign, $\geq$ , we use a closed circle to show that the number 98.6 is included in the domain of definition.

Then since the sign is greater than, we shade to the right of 98.6.

The correct option is A.

3 0

3 years ago

Read 2 more answers

Joe recently joined an online streaming service and pays a monthly fee of $12, plus $0.11 per TV episode streamed. if joe decide

Sliva [168]

$20-$12=$8 $8.00/$0.11= 72.72 repeatedly so he can only watch 72 episode

7 0

3 years ago

Help!<br> This is for Patterns, Functions and Algebra!

ASHA 777 [7]

Answer:

im pretty sure the Answers b, but i've never done this before so sorry if its not

Step-by-step explanation:

5 0

3 years ago

Given that 2x − 1∶ − 4 = 16x + 1 ∶ 2x − 1 find the possible values of

IRISSAK [1]

The possible values of x are 5 and -1/12

<h3>Complete question</h3>

Given that 2x − 1∶ x − 4 = 16x + 1 ∶ 2x − 1 find the possible values of x

<h3>How to determine the possible values of x?</h3>

The ratio is given as:

2x − 1∶ x − 4 = 16x + 1 ∶ 2x − 1

Express as fraction

$\frac{2x - 1}{x-4} = \frac{16x + 1}{2x -1}$

Cross multiply

4x^2 -4x + 1 = 16x^2 + x -64x - 4

Collect like terms

-16x^2 + 4x^2 + 64x - x - 4x + 1 + 4 = 0

Evaluate the like terms

-12x^2 + 59x + 5 = 0

Divide through by -1

12x^2 - 59x - 5 = 0

Expand

12x^2 + x - 60x - 5 = 0

Factorize

x(12x + 1) - 5(12x + 1) = 0

Factor out 12x + 1

(x - 5)(12x + 1) = 0

Expand

x - 5 = 0 or 12x + 1 = 0

Solve for x

x = 5 or x = -1/12

Hence, the possible values of x are 5 and -1/12

Read more about ratios at:

brainly.com/question/2328454

#SPJ1

8 0

2 years ago