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4 years ago

Which is a solution of x2 - x - 3 = 0?

Mathematics

2 answers:

Novay_Z [31]4 years ago

7 0

Answer:

x=3

Step-by-step explanation:

yan [13]4 years ago

4 0

The answer to x2-x-3=0 is x=3

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Use a trigonometric ratio to find the distance EF.

leonid [27]

Answer:

The height of the building is approximately <u>73 m</u>.

Step-by-step explanation:

The triangle EFG is shown below.

Given:

Length of shadow of building is, $FG=34\ m$

Angle of inclination of Sun with the vertical is 25°.

Therefore, the angle of inclination of Sun with the horizontal is given as:

$\angle G=90-25=65\°$

Now, in triangle EFG as shown below, we use the tangent ratio to determine the height of building EF. Therefore,

$\tan (\angle G)=\frac{EF}{FG}\\\tan 65\°=\frac{EF}{34}\\EF=34\times \tan 65\°=72.9\ m\approx 73\ m$

Therefore, the height of the building is approximately 73 m.

4 0

3 years ago

I really need help anybody

Brut [27]

- 4(8x-3)/4 =76/4

-8x+3=76/4

-8x+3=19

-8x=16

X=2

I hope this helps.

7 0

4 years ago

Classify each please please

icang [17]

Answer: The polynomial 3x^2 is a monomial with a degree of 2.

The polynomial x^2y + 3xy^2 + 1 is a trinomial with a degree of 3.

6 0

4 years ago

A law states that a freight truck cannot travel under a low overpass. There must be at least 3 feet of clearance. The sign on an

Feliz [49]

Answer:

D. 16.8

Step-by-step explanation:

It is right trust me!!!

5 0

3 years ago

Read 2 more answers

What should you do when solving consecutive integer problems

Lemur [1.5K]

Step 1. Identify the variable.
Step 2. Write an algebraic equation.
Step 3. Solve the equation.
Step 4. Answer the equation.
Step 5. Check answer.
Hope this helps...?

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4 years ago