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3 years ago

Express the number 9067.5 in scientific notation to 4 significant figures.

Mathematics

1 answer:

zhuklara [117]3 years ago

6 0

9.0675 x 10^3 (The exponent is positive. )

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Select the equivalent expression.

ANEK [815]

Answer:

Step-by-step explanation:

$\frac{1}{9^{2} }$ =1/81

$9^{\frac{1}{2} }$ =3

$\frac{1^{2} }{9}$ = $\frac{1}{9}$

$9^{-2}$ =1/81

5 0

2 years ago

Simplify the number using the imaginary unit i <br> √-28

gizmo_the_mogwai [7]

Choice 3 for this ☺️

4 0

3 years ago

Read 2 more answers

- Which of the following is the correct distance between the points (-5, 3) and (7,8)?

JulsSmile [24]

Answer:

13 units

Step-by-step explanation:

(x₁,y₁) = (-5 , 3) & (x₂ , y₂) = (7 ,8)

$Distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}} \\$

$= \sqrt{(7-[-5])^{2}+(8-3)^{2}} \\\\= \sqrt{(7+5)^{2}+(8-3)^{2}} \\\\= \sqrt{(12)^{2}+(5)^{2}}\\\\=\sqrt{144+25}\\\\=\sqrt{169}\\\\= 13$

7 0

2 years ago

Angles of elevation and Depression, please provide a explanation if possible,ty

puteri [66]

Answer:

4,022.5 m

Step-by-step explanation:

When an observer watches an object lying on the ground from an elevated point on the ground then the angle formed between horizontal line and the line of vision is known as ANGLE OF DEPRESSION.

When an observer watches an object from a point on the ground situated at some height from the ground from the ground then the angle formed between horizontal line and the line of vision is known as ANGLE OF ELEVATION .

Let the distance of the rock from the airplane be x meters.

$\sin \: 25 \degree = \frac{1700}{x} \\ \\ 0.4226182617 = \frac{1700}{x} \\ \\ x = \frac{1700}{0.4226182617} \\ \\ x = 4,022.54269 \\ \\ x = 4022.5 \: m$

6 0

2 years ago

Julia is making a flag for a project. The design of one of the flags, composed of three triangles, is shown in the figure.

Mila [183]

The answer is C
explanation

5 0

1 year ago