All categories

3 years ago

Is y= 9 - 3.5x a linear equation?

Mathematics

2 answers:

mr_godi [17]3 years ago

8 0

Answer: yes

Step-by-step explanation:

seropon [69]3 years ago

3 0

Answer:

indeed!

Step-by-step explanation:

You might be interested in

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airpo

Cerrena [4.2K]

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Problem \: ✟} :$

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airport is 7 kilometers. What is the angle of depression from the airplane to the airport? (Write the answer to the nearest degree.)

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Solution \: ✟} :$

✞ Step 1 ✞: Identify what is asked in the problem.

❒ The angle of depression from the airplane to the airport.

✞ Step 2 ✞: Use appropriate trigonometric ratio to solve the problem.

❒ Since the two legs of the right triangle are part of the problem, hence we use tangent ratio:

$\qquad \qquad \bigstar \: \: \boxed{\tt{ \quad \tan A \degree = \frac{5}{7} \quad}}$

✞ Step 3 ✞: Solution and interpretation.

$: \qquad \large \implies \tt{ \tan A = \frac{5}{7} }$

$: \qquad \large \implies \tt{A = \tan^{ - 1}(\frac{5}{7} )}$

$: \qquad \large \implies \tt{A = 35.54 \approx \pmb{36 \degree}}$

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Answer \: ✟} :$

Hence, the angle of depression from the airplane to the airport is approximately 36°.

$\rule{70mm}{2.9pt}$

$\large \bold{✰ \: MrHarold \: ࿐}$

8 0

2 years ago

A 16 foot ladder is leaning up against the wall. If the bottom of the latter is 6 feet from the base of the wall, how far up the

PSYCHO15rus [73]

For this question, you must use the Pythagorean theorem.
a^2 + b^2 = c^2

In this situation c=16 and a=6
First do 16^2. This equals 256
Second do 6^2. This equals 36

Now, subtract 36 from 256 and fond the square root.

Your answer should be 14.8

6 0

3 years ago

Sarah backstrokes at an average speed of 8 m/s. how long will it take her to complete the race of 200 meters length?

SCORPION-xisa [38]

200 m divided by 8m/s = 0.025

4 0

3 years ago

A shark weighs 405 kg and 68 grams a second shark weighs 324 kg and 75 g how much more does the first shark weigh in grams than

mariarad [96]

For this case we have to by definition:

1 kg equals 1000 grams

Shark 1: