Evaluate the expression and enter your answer below. 4•3+13-3^2

Estimate the following product in scientific notation, and then select the best answer for the product's power of 10

Whitepunk [10]

Complete Question

Estimate the following product in scientific notation, and then select the best answer for the product's power of 10

(91x10²) ÷ (3.3 x10¹²)

Answer:

2.75 ×10^-9

Step-by-step explanation:

Estimate the following product in scientific notation, and then select the best answer for the product's power of 10

(91x10²) ÷ (3.3 x10¹²)

= (91 × 10²) / (3.3 × 10¹²)

= (91 × 10²) / (33 × 10¹¹)

= 91/33 × ( 10^2 - 11)

= 2.757575757 × 10^-9

Approximately

= 2.75 × 10^-9

5 0

3 years ago

A 12-in. pizza is cut into 10 slices. You eat one slice of pizza. How many square inches of pizza do you eat? Show your work. Ro

dsp73

Answer:

Well on my calculator it says 1.2 so u ate 1.2 inches. to round it it would be 1 so 1 square inch

6 0

4 years ago

The ratio of the measure of the acute angle in a right triangle is 1/2 . Find the measures of the two angles

AleksandrR [38]

30° and 60°.

<h3>Further explanation</h3>

We will solve the problem of the measures of angles in the triangle.

Recall this condition:

The acute angle ⇒ an angle of less than 90°.
The right angle ⇒ an angle of exactly 90°.
A right triangle ⇒ a triangle in which one angle is a right angle.
The interior angles ⇒ the angles inside a triangle.
All the interior angles in a triangle , i.e., $\boxed{ \ \angle A + \angle B + \angle C = 180^0 \ }$

<u>Given that:</u>

The ratio of the measure of the acute angle in a right triangle is ¹/₂.

<u>Question:</u>

Find the measures of the two angles.

<u>The Process:</u>

We call it the triangle ABC. An interior angle inside is a right angle, e.g., ∠A = 90°.

From the ratio of two other acute angles, i.e., 1: 2, we call it ∠B = x and ∠C = 2x.

Let's arrange the three angles in ABC triangle as follows:

$\boxed{ \ 90^0 + x + 2x = 180^0 \ }$

Both sides subtracted by 90°.

$\boxed{ \ x + 2x = 180^0 - 90^0 \ }$

$\boxed{ \ 3x = 90^0 \ }$

Both sides divided by 3.

We get $\boxed{ \ x = 30^0 \ }$

We substitute the value of x back into B and C.

$\boxed{\boxed{ \ \angle B = x\ } \rightarrow \boxed{ \ \angle B = 30^0 \ }} \\\boxed{\boxed{ \ \angle C = 2x\ } \rightarrow \boxed{ \ \angle C = 60^0 \ }}$