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1 year ago

Help me please - look at pic

Mathematics

2 answers:

ArbitrLikvidat [17]1 year ago

6 0

Answer:

Task 1:

Change the second equation into:

x=3y-12

Then substitute 3y-12 for x in the first equation:

2(3y-12)-6y=5

6y-24-6y=5

-24≠5

no solution

Task 2

We know that the two lines in the system of equations have the same slope. The solution in task 1 means that the two lines have to be parallel, as they do not intersect.

zzz [600]1 year ago

6 0

2x - 6y = 5 x - 3y = -12

-2x____-2x___ x - 3(1/3x - 5/6) = -12

-6y = -2x +5____ x - 1x + 5/2 = -12

----__-----__---______5/2 = -12

-6___-6_-6________-----___----

__________________ 5/2___ 5/2

y = 1/3x - 5/6________-4.8

I. d. k if this helps you at all but I hope this helped-?!!

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Josh wrote 483 out of an expected 500 words from his essay. How would this ratio be

ehidna [41]

Answer:

0.966

Step-by-step explanation:

483:500 = 0.966

i hope this is right x

4 0

2 years ago

Read 2 more answers

] What percentage of the last 30 U.S. Presidents were inaugurated at the age of 60 or later? (Round to 1 decimal place.)

svetlana [45]

Answer:

20.0%

Step-by-step explanation:

The last 30 presidents of America starts from the 16th president, Abraham Lincoln and ends with the current and 45th president, Donald Trump.

The presidents that are 60 and above years during this period include

Donald Trump, Goerge H. W. Bush, Roland Regan, Gerald Ford, Dwight D. Eisenhower and Harry S. Truman.

Making 6 of them out of 30

The percentage is given by

Number of presidents aged 60 and above×100/Total number of presidents

6×30/100=20%

7 0

2 years ago

Please help me, this is PEDMAS

rusak2 [61]

Answer:

1). 183

2). 83

3). 353

4). -2652

5). 59

6). 510

7). -293

8). 79

9). 78

10). 87

Step-by-step explanation:

Considering order of operation, parenthesis must be simplified first.

The solutions to the given questions are shown below;

$1). \ \ 5+(7\times (3+2)^2) + 3=8 + (7\times (5)^2) = 8 + (7\times 25) = 8 + 175 = 183$

$2). \ 16+(8+ (6+2)^2) - 5=16-5 + (8+ (8)^2) = 11 + (8+64) = 11 + 72 = 83$

$3). \ (15+ 3)^2 + ((14+6)+3^2)= (18)^2 + ((20) + 9) = 324 + (29) = 353$

$4). \ ((11+ 2)-(24+2)^2)\times 2^2 = (13 - 676) \times 4 = (-663)\times 4 = -2652$

$5). \ ((4+3)^2+ 6) -5+3^2= (49 + 6) - 5 + 9= (49+6+9) - 5 = 64-5 = 59$

$6). \ (20+ 2)^2 +((15+7)+2^2)= (484) + (22+ 4)= 484 + 26 =510$

$7). \ ((12 + 4)- (15+3)^2+ 5^2 = (16 - 324) + 25 = -318 + 25 = -293$

$8). \ (6^2+ (24+ 3+5^2)) - 3^2= (36 + (52)) - 9 = (88) - 9 = 79$

$9). \ ((10-4)^2\times 2) + 2 + 2^2= ((6)^2 \times 2) + 2 + 4 = (36\times 2)+ 6 = 72 + 6 = 78$

$10). \ (7^2 + (16 + 8 + 2^2)) + 3^2 = (49 + 28) + 9 = 78 + 9 = 87$

3 0

2 years ago

A solid figure without any basses and only one curved surface

Angelina_Jolie [31]

Answer is a sphere (ball shape)

3 0

2 years ago

What is y= 4^x with the domain of (-2,0,3)

Elena L [17]

Step-by-step explanation:

$\text{Put}\ x=-2,\ x=0\ \text{and}\ x=3\ \text{to the equation}\ y=4^x:\\\\y=4^{-2}\qquad\text{use}\ a^{-n}=\dfrac{1}{a^n}\\\\y=\dfrac{1}{4^2}=\dfrac{1}{16}\\-----------------\\\\y=4^0=1\\-----------------\\\\y=4^3=64$

7 0

2 years ago