All Questions ⁺⁰238125 Questions

+4

614

1

+367

PLEASE HELP ASAP

Find all y which does NOT satisfy
Express your answer in interval notation.

imdumb Jul 5, 2020

0

537

1

help with counting

Coach Martin needs to pick a team for the annual Mathletes competition for this year. There are 36 tryouts for the team, 22 boys and 14 girls. Coach says that he needs a team of 4, consisting of 2 boys and 2 girls.
How many different teams can be read more ..

Guest Jul 5, 2020

0

510

1

please help

In a class of 60, where there are twice as many girls as boys, Kamal is ranked 17th from the top. There are 9 girls ahead of him in the ranking. How many boys are after him?

Guest Jul 5, 2020

0

590

2

help

Guest Jul 5, 2020

0

589

1

help

N is an integer whose representation in base b is 777. Find the smallest positive integer b for which N is the fourth power of an integer.

Guest Jul 5, 2020

0

611

1

help!

The value of the numerator of a particular fraction is one-half the value of its denominator. If the numerator is increased by and the denominator is decreased by , the value of the resulting fraction is . What is the denominator read more ..

Guest Jul 5, 2020

0

722

1

+174

Helpppp

Find the units digit of the following within the indicated number base:

Forumofweb2.0cal Jul 5, 2020

0

559

1

help

Calculate

Note: denotes the floor function

Guest Jul 5, 2020

0

486

1

54+65-12=?

Guest Jul 5, 2020

0

765

1

+6

Need the answer asap and the show the work too ASAP!

A boat is 130 m from the base of a cliff. The cliff is 80 m high. Determine, to the nearest degree, the angle of depression of the boat from the top of the cliff.

SONOFJUPI Jul 5, 2020

0

611

2

help with geometry

There are two circles, one with center A and radius 1, the other with center B and radius 2. The distance AB is 6. A third circle of unknown radius is tangent to both of these circles and there exists a straight line which read more ..

Guest Jul 5, 2020

0

591

1

help

A spherical orange is cut about the vertical axis into 8 equal slices as shown above.
What is the ratio of the total surface area of the 8 slices to that of the original orange?

read more ..

Guest Jul 5, 2020

0

769

1

i need the answer and shown work because i dont know anything about this

Two office towers are directly across the street from each other. The smaller tower is 40 m tall. The angle of elevation from the top of the smaller tower to the top of the larger tower is 21o. The angle of depression from the top of the smaller tower to read more ..

Guest Jul 5, 2020

0

674

1

help

A doctor's age 8 years ago is two-thirds his age 13 years hence. How old is he now?

Guest Jul 5, 2020

0

617

2

help

A lattice point is a point whose coordinates are integers. How many lattice points are strictly inside the triangle formed by the points (0,0), (0,7), and (8,0)?

Guest Jul 5, 2020

0

763

1

i need the answer and the show your work please

Two buildings are 200m apart. From a point midway between them, the angles of elevation to the top of each building are 12o and 9o respectively. To the nearest tenth, how much taller is one building compared to the other?

Guest Jul 5, 2020

0

471

1

please help

If you write all the whole numbers upto 100000, the number of times you write the digit '1' is A and the number of times you write the digit '2' is B. what is the value of A-B ?

Guest Jul 5, 2020

0

466

1

help

How many 3-digit numbers contain the digit 9?

Guest Jul 5, 2020

0

801

1

Need help

A boat is 130 m from the base of a cliff. The cliff is 80 m high. Determine, to the nearest degree, the angle of depression of the boat from the top of the cliff.

Guest Jul 5, 2020

0

516

1

help

Given that in a room there is an amoeba (only one) and it duplicates itself every second and will fill the entire room in 1 hour. When (in seconds) will the amoebas fill up half the room?

Guest Jul 5, 2020

0

552

3

Some help plz?

M is the midpoint of PQ and N is the midpoint of PR, and O is the intersection of QN and RM, as shown. If QN is perpendicular to PR, QN = 12, and PR = 14, then find OR.

read more ..

Guest Jul 5, 2020

0

654

2

complex numbers

Find all complex numbers z such that

I can't write sqrt(i), so I don't know what the answer is.

Guest Jul 5, 2020

0

569

2

help

Given a, b, c, d are four distinct natural numbers that satisfy the system of equations above.
Determine the value of a+b+c+d.

Guest Jul 5, 2020

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