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2 years ago

1/2 of 30= 1/4 of [ ]

Mathematics

1 answer:

MaRussiya [10]2 years ago

7 0

Answer:

Step-by-step explanation:

half of 30 is 15

and 15 is 1 quarter of 60

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Find the possible subsets of A = {a,b}

Karolina [17]

Answer:

Step-by-step explanation:

Subset of A = { {} , {a} , {b}, {a.b} }

7 0

2 years ago

The following is a model showing the solution to an equation. x - 34 = 13 x - 34 + 34 = 13 + 34 x = 47 What property of equality

yanalaym [24]

Answer:

B.) Addition*Additive property of equality

Step-by-step explanation:

You add 34 to both sides of the equation to find what x was equal to

Hope I helped

8 0

2 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

2 years ago

Nady [450]

Answer:

$200

y=25x+50

Step-by-step explanation:

y=25(6)+50

y=150+50

y=200

5 0

3 years ago

Read 2 more answers

A/-2 - 10 =3 verbal phrase

Verizon [17]

Answer:

verbal phrase for: $\frac{a}{-2} -10=3$

3 is 10 less than the quotient of a number and -2

Step-by-step explanation:

Or ... 10 less than the quotient of a number and -2 is 3

Or ... 3 is 10 less than a number divided by -2

4 0

2 years ago

Read 2 more answers

1/2 of 30= 1/4 of [ ￼ ]

1/2 of 30= 1/4 of [ ]