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3 years ago

A ladder is 100 inches tall. How tall is it in feet and inches

Mathematics

1 answer:

Nataly [62]3 years ago

6 0

Answer:

Step-by-step explanation?

8 feet 4 inches....12*8= 96, 96+4=100....so your answer is 8 foot 4 inches. because there is 12 inches in a foot, and have 4 left over for the 100.

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A teacher teaches 8 students how to fold an origami model. Each of these students goes on to teach 8

valentina_108 [34]

Answer:

8x8= 64

64x6= 384

384 is the answer

Let me know if i helped!

8 0

2 years ago

a port and a radar station are 2 mi apart on a straight shore running east and west. a ship leaves the port at noon traveling no

Rom4ik [11]

Answer:

The rate of change of the tracking angle is 0.05599 rad/sec

Step-by-step explanation:

Here the ship is traveling at 15 mi/hr north east and

Port to Radar station = 2 miles

Distance traveled by the ship in 30 minutes = 0.5 * 15 = 7.5 miles

Therefore the ship, port and radar makes a triangle with sides

2, 7.5 and x

The value of x is gotten from cosine rule as follows

x² = 2² + 7.5² - 2*2*7.5*cos(45) = 39.04

x = 6.25 miles

By sine rule we have

$\frac{sin A}{a} = \frac{sin B}{b}$

Therefore,

$\frac{sin 45}{6.25} = \frac{sin \alpha }{7.5}$

α = Angle between radar and ship α

∴ α = 58.052

Where we put

$\frac{sin 45}{6.25} = \frac{sin \alpha }{x}$ to get

$\frac{x}{6.25} = \frac{sin \alpha }{sin 45}$ and differentiate to get

$\frac{\frac{dx}{dt} }{6.25} = cos\alpha\frac{\frac{d\alpha }{dt} }{sin 45}$

$\frac{15sin45 }{6.25cos\alpha } =\frac{d\alpha }{dt} }$ = 3.208 degrees/second = 0.05599 rad/sec.

6 0

3 years ago

A group of students were doing a science experiment in which they measured wind speed and temperature. The first day the wind sp

Mama L [17]

So the difference of speed will be 25-17 = 8 mph the last one choice

hope helped

8 0

3 years ago

list the pair of congruent angles and the extended proportion that relations the corresponding sides for the similar polygons KL

kherson [118]

Answer:

In Polygons KLMNP and HGFDC,

Angles K, L, M, N and P are corresponding to H, G, F, D and C,

And, Sides KL, LM, MN, NP and PK are corresponding to sides HG, GF, FD, DC and CH

If the two figures are similar then their corresponding sides and angles are congruent.

Therefore, If Polygon KLMNP is similar to HGFDC,

Then, ∠ K ≅ ∠ H, ∠ L ≅ ∠ G, ∠ M ≅ ∠ F, ∠ N ≅ ∠ D, ∠ P ≅ ∠ C

And, KL ≅ HG, LM ≅ GF, MN≅FD, NP≅DC, PK≅CH

7 0

3 years ago

Use the graph to interpret and match the approximate intervals with their descriptions.

Dmitry_Shevchenko [17]

Answer:

(-9, -3) - Interval over which the difference of the numbers of sales is negative.

(4.9, 10 ) - Interval over which the difference of the numbers of sales 15 positive

(-3, 10) - Interval over which the difference of the numbers of tale decreasing

(0, 4.9) - Interval over which the difference of the numbers of sales is increasing

Hope this helps!

3 0

4 years ago