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VladimirAG [237]
3 years ago
9

1.Solve : 3(5 + 7) - 4(8 + 4) = * 2.solve:-7 x -10 ill give you an free robux account if you get them correct

Mathematics
1 answer:
Kaylis [27]3 years ago
7 0

Answer:

1) -12, 2) 70

Step-by-step explanation:

Hope this helps :)

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If product of two numbers=384HCF=8,2cm=?​
lions [1.4K]

Answer:

96 and 288

Step-by-step explanation:

So, we need to find 2 numbers such that their sum is 8 and they do not have common factor (Relatively prime). Both these numbers will be divisible by 48 but there would be no other common divisor (after dividing by 48).

Such order independent pairs are (1,7) and (3,5).

Difference between them would be (7–1)*48=6*48 and (5–3)*48=2*48 respectively.

The differences are 6*48=288 and 2*48=96.

We have found difference without finding numbers.

Ans.: 96 and 288

p.s.: The number pairs (again order neutral) would be (48, 336) and (144, 240)

Difference for 48 and 336 add up to 384, their HCF is 48. These two numbers match the conditions. Their difference is 288.

Difference of 144 and 240 add up to 384, their HFC is 48 (the numbers are 48*3 and 48*5, common factor is 48 and no other common factor for 3 and 5; 48 is HCF). The difference is 96.

6 0
3 years ago
A Cat, sitting in the top of a tree, spots a dog and a Firefighter both on the flat ground below. From the cats point of view ,
dezoksy [38]
This is the concept of application of trigonometry;
The height of the tree will be given by:
tan theta=opposite/adjacent
theta=65
opposite=h
adjacent= 10
thus;
tan 65=h/10
h=10 tan 65
h=21.45 m

The distance between the dog and the man is x;
the distance of the man to the tree is (x+10) m
this will be given by:
tan 50= 21.45/(10+x)
getting the reciprocal of the expression we get;
1/tan 50=(10+x)/21.45
cross multiplying the above expression we get;
21.45=(10+x)tan 50
21.45=(10+x)1.2
21.45=12+1.2x
1.2x=21.45-12
1.2x=9.45
x=9.45/1.2
x=7.875
We conclude that the distance of the Firefighter and the dog is x=7.875 m



4 0
4 years ago
Read 2 more answers
Please help, i will mark you brainliest :))
liraira [26]
It would be 0.2
Because
1 divided by 5 = 0.2
To check
0.2*5=1

Hope this helps

Have a great day/night
4 0
3 years ago
Read 2 more answers
Plsss help me (picture included above)
vodomira [7]
I would say c
but im sorry if im wrong because math isnt my flair
3 0
4 years ago
Read 2 more answers
Which expression shows the result of applying the distributive property of 3(2x – 6)?
jok3333 [9.3K]

Answer:

6x - 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Distributive Property

Step-by-step explanation:

<u>Step 1: Define</u>

3(2x - 6)

<u>Step 2: Expand</u>

  1. Distribute 3:                    3(2x) + 3(-6)
  2. Multiply:                          6x - 18
5 0
3 years ago
Read 2 more answers
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