Ask question

Ask question

All categories

2 years ago

10

I need help with square roots. I would really appreciate it if you help me understand them. Thank you! I'll give you 10 points a

nd a five star review for a good answer.

1 answer:

Juliette [100K]2 years ago

8 0

Answer: 9/8

Step-by-step explanation:

The square root of this is 9/8 because when you square 9/8, you get 81/64, and when you square root it, you get 9/8.

The easiest way tho is knowing that when you square a number and square root the square, you get the same number, cuz the square root cancels the square. Does that make sense?

Anyways hope this helped!

You might be interested in

Can can someone help me with this I don’t know

Zarrin [17]

Answer:

29500

Step-by-step explanation:

subtract the two numbers

7 0

3 years ago

Read 2 more answers

A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,

guajiro [1.7K]

We have been given that a huge ice glacier in the Himalayas initially covered an area of 45 square kilo-meters. The relationship between A, the area of the glacier in square kilo-meters, and t, the number of years the glacier has been melting, is modeled by the equation $A=45e^{-0.05t}$ .

To find the time it will take for the area of the glacier to decrease to 15 square kilo-meters, we will equate $A=15$ and solve for t as:

$15=45e^{-0.05t}$

$\frac{15}{45}=\frac{45e^{-0.05t}}{45}$

$\frac{1}{3}=e^{-0.05t}$

Now we will switch sides:

$e^{-0.05t}=\frac{1}{3}$

Let us take natural log on both sides of equation.

$\text{ln}(e^{-0.05t})=\text{ln}(\frac{1}{3})$

Using natural log property $\text{ln}(a^b)=b\cdot \text{ln}(a)$ , we will get:

$-0.05t\cdot \text{ln}(e)=\text{ln}(\frac{1}{3})$

$-0.05t\cdot (1)=\text{ln}(\frac{1}{3})$

$-0.05t=\text{ln}(\frac{1}{3})$

$t=\frac{\text{ln}(\frac{1}{3})}{-0.05}$

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-0.05\cdot 100}$

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-5}$

$t=-\text{ln}(\frac{1}{3})\cdot 20$

$t=-(\text{ln}(1)-\text{ln}(3))\cdot 20$

$t=-(0-\text{ln}(3))\cdot 20$

$t=20\text{ln}(3)$

Therefore, it will take $20\text{ln}(3)$ years for area of the glacier to decrease to 15 square kilo-meters.

6 0

3 years ago

What is 8 × 1 + 3 × 0.1 + 9 × 0.01 in standard form

emmasim [6.3K]

Answer:

0.216

Step-by-step explanation:

$8 \times 1 \times 3 \times 0.1 \times 9 \times 0.01\\\\=(8\times1)(3\times0.1)(9\times0.01)\\\\=8(0.3)(0.09)\\\\=(8\times0.3)(0.09)\\\\=(2.4)(0.09)\\\\=2.4\times0.09\\\\=0.216$

is this the standard form?

5 0

3 years ago

Cai is buying a fruit smoothie from the grocery store and wants the best deal, order the prices from the best to worst deal. (in

snow_tiger [21]

Answer:

Best Fruit, Smooth and Tasty, True Smooth, Healthy Smoothie

Step-by-step explanation:

#1 =0.101 -Best Fruit

#4 =0.24 -Healthy Smoothie

#2 =0.161 -Smooth and Tasty

#3 =0.164 -True Smooth

To get my answer, I divided the price by the number of ounces for each smoothie. This would give you the price of each ounce.

6 0

3 years ago

The midpoint of AB is M(-6, 1). If the coordinates of A are (-7, -3) what are the coordinates of B?

Mademuasel [1]

Answer:

Step-by-step explanation:

6 0

2 years ago