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3 years ago

Whats 2+2+9+7+10+67+89+572+53+4=?

Mathematics

2 answers:

Sav [38]3 years ago

7 0

Step-by-step explanation:

815..............…......…

inysia [295]3 years ago

7 0

Answer:

813

Step-by-step explanation:

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What is the formula to find the area of a triangle? choose all that apply

Nana76 [90]

Answer:

the second and thrid one :)

Step-by-step explanation:

3 0

2 years ago

A group of five people are all working on the same mathematics problem. On the night before it is due, they call each other to d

UkoKoshka [18]

Answer:

Minimum number of calls = 10

Step-by-step explanation:

Lets name the five people as A,B,C,D and E.

<u>On the night before ,each person talks to every other person atleast once that means A would talk to B,C,D and E atleast once.</u>

Lets start with A. He would talk to other 4 people which means there would be 4 phone calls made.

Now lets take B. He can talk to A,C,D and E. But A has already talked to C therefore to get minimum number of phone calls , B need not call A again. So he calls only C,D and E.

In case of C using similar logic he need to talk to only D and E.

For D , he talks to E alone.

E does not have to talk to anyone as he has already talked to everyone atleast once.

Total calls = 4 + 3 + 2 + 1

= 10

5 0

3 years ago

Dave is comparing the circumferences of several trees in his yard. The oak tree is 0.539 meters in circumference, the ash tree h

stepan [7]

Answer: c. elm

Step-by-step explanation:

Given : The circumference of the oak tree= 0.539 meters

= $0.539\times100=53.9\text{ cm}$ [∵ 1 m = 100 cm] (1)

The circumference of the ash tree= 0.509 yards

$=0.509\times3\text{ feet}$ [∵ 1 yard = 3 feet]

$=0.509\times3\times 30.48\text{ cm}$ [∵ 1 foot = 30.48 cm]

$=46.54296\approx46.54\text{ cm}$ (2)

The circumference of the elm tree = 6281.70 millimeters

$=\dfrac{6281.70}{10}=628.17\text{ cm}$ (3)

The circumference of the poplar tree = 0.000385 miles

$=0.000385 \times5280\text{ feet}$ [∵ 1 mile = 5280 feet]

$=0.000385 \times5280\times30.48\text{ feet}$ [∵ 1 foot = 30.48 cm]

$=61.959744\approx61.96\ \text{ cm}$ (4)

From (1) , (2) , (3 ) and (4) it is clear that

46.54< 53.9 < 61.96 < 628.17

Hence, the elm tree has the greatest circumference.

5 0

2 years ago

For the polynomial 17x2 – x: (3 marks)

Sladkaya [172]

Answer:

See below

Step-by-step explanation:

Given polynomial is: $17x^2 - x$

a. Terms: $17x^2, \: \&\: - x$

b. 17 and - 1

c. Binomial or quadratic polynomial

7 0

3 years ago

2)<br> Solve the quadratic equation by taking square roots.<br> 4x^2 = 24

Veronika [31]

Answer:

4x²=24

or,x²=24÷4

or,x=root 6

8 0

2 years ago