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3 years ago

Erin and Ethan add fractions 2 1/3 and 1 1/2

Mathematics

1 answer:

stiks02 [169]3 years ago

8 0

Answer:

32/5

Step-by-step explanation:

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The number 42 is composite or prime.

iren [92.7K]

Answer:

Composite

Step-by-step explanation:

Composite means having more than 2 factors

1, 42, 2, 21, 6, 7 are the factors therefore, it is composite

8 0

3 years ago

Read 2 more answers

Whats the sum of the interior angles of a 37 gon

Zinaida [17]

Since we have a 37-gon here, the sum of the interior angles will be:
<span>(37 - 2) * 180 </span>
<span>= 6300 degrees</span>

7 0

3 years ago

An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression. To the nearest foot, how far is the boa

Yuri [45]

Answer:

407.22 foot is the boat from the base of the lighthouse

Step-by-step explanation:

Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.

Let x foot be the distance of the object(boat) from the base of the lighthouse

Angle of depression = $7^{\circ}$

$\angle CAB = \angle DCA = 7^{\circ}$ [Alternate angle]

In triangle CAB:

To find AB = x foot.

Using tangent ratio:

$\tan (\theta) = \frac{Opposite side}{Adjacent Base}$

$\tan (\angle CAB) = \frac{BC}{AB}$

Here, BC = 50 foot and $\angle CAB =7^{\circ}$

then;

$\tan (7^{\circ}) = \frac{50}{x}$

$x = \frac{50}{\tan 7^{\circ}}$

$x = \frac{50}{0.1227845609}$

Simplify:

AB = x = 407.217321 foot

Therefore, the boat from the base of the light house is, 407.22'

5 0

3 years ago

Round 3.255 to the nearest hundredth.

Oduvanchick [21]

Answer:

3.26

Step-by-step explanation:

if there is a five you round it up too 3.26

3 0

3 years ago

A woman borrows $6,000 at 9% compounded monthly, which is to be amortized over 3 years in equal monthly payments. for tax purpos

katrin [286]

434.37 per year. 1,303.11 total interest

8 0

3 years ago