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3 years ago

PLS HELP ME WITH THIS

Mathematics

2 answers:

Luden [163]3 years ago

8 0

Answer:

Step-by-step explanation:

5 x 6 = 30

6 divided by 2 equals 3

30 - 3 = 27

Brrunno [24]3 years ago

7 0

Answer:

5(6)-3 the answer is 27 finisjed

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A square card has an area of

asambeis [7]

Answer:la verdada no se la rta

Step-by-step explanation:

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3 years ago

Keela can read 2/7 of a book in 3/4 of an hour. How long will it take her to read one full book

GuDViN [60]

Answer:

2 hours and 37.5 mins

I think

Step-by-step explanation:

2/7 : 3/4

divide both sides by 2

1/7 : 3/8

multiply both sides by 7

1 : 21/8

simplify

1 : 2 5/8

change 2 5/8 to hours and mins

2 hours and 37.5 mins

5 0

3 years ago

Find the product of the following expression. 4(3x2 - 4x + 5)

Papessa [141]

Answer:

-16x + 44

Solution:

4(3×2 - 4x + 5)

= 4( 6 - 4x + 5)

=4( -4x + 11)

= -16x + 44

4 0

3 years ago

The distance, d, in kilometres, travelled by a plane after t hours can be represented by d(t)=-4t³=40t²+500t, where t is greater

Ede4ka [16]

D(t) = -4t^3 + 40t^2 + 500t = 4088
4t^3 - 40t^2 - 500t + 4088 = 0
t = 7

Therefore, the plane has flown 4088 km 7 hours after it took off.

8 0

3 years ago

Please please help me please help please please help me please help please

AVprozaik [17]

Answer:

Perimeter is 17.07

Step-by-step explanation:

We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.

We need to use the Pythagorean theorem to get the length of DE.

$DE = \sqrt{5^{2} +5^{2}}=\sqrt{50} = 7.07\\$

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07

5 0

3 years ago