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3 years ago

9

Please help I am not soo good at math

2 answers:

Reika [66]3 years ago

8 0

Answer: X = 300

So it would be "D"

hram777 [196]3 years ago

7 0

Answer:

D

Step-by-step explanation:

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Darina [25.2K]

Is it a triangle??? Or a square??

8 0

4 years ago

Please help quicky!!!!!!!!!!

olga55 [171]

Answer:

≈ 2,826 cm^3

Step-by-step explanation:

V = πr^2h

V = 3.14 · 10^2 · 9

V = 3.14 · 100 · 9

V = 314 · 9

V = 2,826

6 0

3 years ago

Thurman put $90 into a CD that pays 4.4% interest. According to the rule of

zavuch27 [327]

Answer:

B-16.4 years

Step-by-step explanation:

5 0

3 years ago

NGC is a hot air balloon in the sky from her spot on the ground. The angle of elevation from Angie to the balloon is 40°. If she

Goshia [24]

Answer:

The distance from hot air balloon to the ground $AC=50.1457 ft$ .

Step-by-step explanation:

Labelled diagram of given scenario is shown below.

Given that,

An angle of elevation of Hot air balloon by Angie is $40$ °.

When she stepped back $200 ft$ then angle of elevation was $10$ °.

Height of Angie is $5.5 ft$ .

To find: How far off the ground is a hot air balloon.

So, from figure

Height of Angie $(BC) = 5.5ft$

In triangle Δ $ABD$ ,

⇒ $tan {40\si {\degree}} = \frac{AB}{BD}$

⇒ $AB = tan (40) \times BD$ ....................(1)

Now, In triangle Δ $ABE$

⇒ $tan (10)= \frac{AB}{200+BD}$

⇒ $AB = tan(10)\times (200+BD)$

Here, substituting the value $AB$ from Equation (1) we get,

$tan(10)\times (200+BD)= tan(40)\times BD$

$tan(10)\times 200+tan(10)\times BD= tan(40)\times BD$

⇒ $BD\times (tan(40)-tan(10))=tan(10)\times 20$

⇒ $BD\times 0.6628 = 35.2654$

⇒ $BD = \frac{35.2654}{0.6628} =53.2067 ft$

Now, finding the value of $AB$ from equation (1)

$AB= tan(40)\times 53.2067=0.8391\times 53.2067$

$AB=44.6457 ft$

Therefore Length of $AC= AB+BC$ = $(44.6457 + 5.5) ft$

$AC=50.1457 ft$ .

Hence,

The distance from hot air balloon to the ground $AC=50.1457 ft$ .

6 0

3 years ago

On what interval is the function h(x) = |x − 5| + 2 increasing?

lilavasa [31]

Answer:

Step-by-step explanation:

This is an absolute value function, and since it is positive, it will decrease to its point as it comes in from the left and then increase from its point as it goes on to the right. The vertex of this function sits at (5, 2). This means that the function is increasing from an x value of 5 all the way up to infinity.

4 0

4 years ago