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2 years ago

Hi! Hope You're Having A More Than Amazing Day!

Mathematics

2 answers:

SCORPION-xisa [38]2 years ago

3 0

890 is the answer hope I got it

rosijanka [135]2 years ago

3 0

I think 890!!!!!!!!!!!!!!!

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What is the volume of a cube with length 7 cm? V = lwh cm3

bonufazy [111]

343 Due to the fact that it is all the same length it will just multiply to 343 7*7*7=<span>343</span>

5 0

2 years ago

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Which equation has the solutions X=1 +-SQRT 5?

Vesna [10]

Answer:

D is correct. $x^2-2x-4=0$

Step-by-step explanation:

We are given the root of the equation

$x=1+\pm \sqrt{5}$

If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, $a=1+\sqrt{5} , b=1-\sqrt{5}$

Equation form would be $(x-1-\sqrt{5})(x-1+\sqrt{5})=0$

Now we simplify the above equation to get correct option.

$x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0$

$x^2-2x-4=0$

So, D is correct. $x^2-2x-4=0$

8 0

3 years ago

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Help me pls it is geometry

Gekata [30.6K]

Answer:

m < b = 76

Step-by-step explanation:

Because b is directly across from the 76 degree angle, that makes them vertical angles, which means they are the same degree I believe.

5 0

1 year ago

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a skydiver jumps out from the plane at 10,000 feet above the ground. the skydiver decends at a rate of 175 feet per seconds. how

nikitadnepr [17]

Answer:

5625 feet

I hope it's helps you

5 0

2 years ago

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A plane at an altitude of 7000 ft is flying in the direction of an island . If an angle of depression is 21 ° from the plane to

Nonamiya [84]

The horizontal distance until the plan flies over the island is 2687.05 feet approximately.

<u>Solution:</u>

Given that, A plane at an altitude of 7000 ft is flying in the direction of an island

An angle of depression is 21 degree from the plane to the island

We have to find what is the horizontal distance until the plan flies over the island

The diagram is attached below

Assume as shown in the diagram , now we can use the right angle triangle property

$\tan (21)=\frac{\text {distance between plane and point above island}}{\text {height of plane}}$

$\tan (21)=\frac{\text {distance between plane and point above island}}{7000}$

$\text { Distance between plane and point above island }=7000 \times \tan (21)$

$=7000 \times 0.38386=2687.0482$

Hence, the distance between plane and point above island is 2687.05 feet approximately.

3 0

2 years ago