3 years ago

Solve for y 1.02 = -3.6 + 3.9

Mathematics

1 answer:

Crazy boy [7]3 years ago

6 0

Answer:

1344

Step-by-step explanation:

dont listen to me this is wrong

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What is four divided by negative six

____ [38]

-0.666666 (it’s recurring)

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3 years ago

Solve by the method of your choice 6x-2y= 16, 5x+y=24

Soloha48 [4]

6x-2y=16
(5x+y=24)*2
__________

6x-2y=16
10+2y=48 Add the equations”+”
—-
16x=64
X=4
So y=1

6 0

3 years ago

00:00

Nady [450]

Answer:

no,yes,no,yes

Step-by-step explanation:

if you wanna check if a relation is function or not , you can simply check if you have more than one x with same y.for example : for the first relation, you have (2,5) and (2,7) . so this isnt a function

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3 years ago

The sum of three consecutive terms in an arithmetic sequence is 27, and their product is 585. find the three terms.

sammy [17]

$\text{the three consecutive terms in an arithmetic sequence}\\a;\ a+d;\ a+2d\\\\\text{system of equals}\\\\ \left\{\begin{array}{ccc}a+a+d+a+2d=27\\a(a+d)(a+2d)=585\end{array}\right\\ \left\{\begin{array}{ccc}3a+3d=27&|:3\\a(a+d)(a+2d)=585\end{array}\right\\ \left\{\begin{array}{ccc}a+d=9&\to d=9-a\\a(a+d)(a+2d)=585\end{array}\right\\$
$\text{substitute to the second equation}\\\\a(a+9-a)(a+2(9-a))=585\\\\a(9)(a+18-2a)=585\\9a(18-a)=585\ \ \ |:9\\a(18-a)=65\\18a-a^2=65\ \ \ |\text{change the signs}\\a^2-18a=-65\\a^2-2a\cdot9=-65\ \ \ |+9^2\\\underbrace{a^2-2a\cdot9+9^2}_{(a-b)^2=a^2-2ab+b^2}=-65+9^2\\(a-9)^2=16\to a-9\pm\sqrt{16}\\a-9=-4\ \vee\ a-9=4\ \ \ |+9\\a=5\ \vee\ a=13\\\\d=9-5=4\ \vee\ d=9-13=-4$
$Answer:\ a=5;\ a+d=9; a+2d=13\ vee\ a=13;\ a+d=9;\ a+2d=5$

5 0

4 years ago

What is 5 to the second power plus 4

earnstyle [38]

Answer:

Step-by-step explanation:

5^2 = 25

25 + 4 = 29

7 0

3 years ago

Read 2 more answers