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Vinvika [58]
3 years ago
13

I really need some help!

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
5 0
-4x = y + 3
y = -4x - 3

The second equation is solved for y.
We'll leave it like that.
Now we solve the first equation for y.

-4x = y + 3

-4x - 3 = y

y = -4x - 3

Write the new form of the first equation followed by the original second equation.

y = -4x - 3
y = -4x - 3

Before we get to the addition method, we see that both equations are the same.

The solution is every real number.
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John has $5 in his bank account when he gets a job. He begins making $109 a day. A student found that the equation that represen
ddd [48]

Answer:

the student answer is incorrect

Correct answer: y = 109x + 5

Step-by-step explanation:

He STARTS with $5, which means it says aside. Since he REPEATEDLY recieves $109 EVERY day, it is as 109x because you don't know how much days there are.  So the correct equation is y = 109x + 5.

Hope this helps!

Have a nice day!

4 0
2 years ago
Question. 7 Let abc be a three-digit number. Then, abc + bca + cab is not divisible by (a) a + b + c (b) 3 (c) 37 (d) 9
Neko [114]

Answer:

D. 9

Step-by-step explanation:

Let

abc=100a+10b+c

bca=100b+10c+a

cab=100c+10a+b

abc + bca + cab=(100a+10b+c) + (100b+10c+a) + (100c+10a+b)

=100a + 10b + c + 100b + 10c + a + 100c + 10a + b

Collect like terms

=100a + a + 10a + 10b + 100b + b + c + 10c + 100c

=111a + 111b + 111 c

Factorise

=111(a+b+c)

abc + bca + cab = 111(a+b+c)

Factors of 111(a+b+c)= 1, 3, 37, 111, and (a+b+c)

abc + bca + cab is divisible by a+b+c because it is a factor of 111(a+b+c)

abc + bca + cab is divisible by 3 because 3 is a factor of 111(a+b+c)

abc + bca + cab is divisible by 37 because 37 is a factor of 111(a+b+c)

abc + bca + cab is not divisible by 9 because 9 is not a factor of 111(a+b+c)

7 0
3 years ago
The function f(x)=x2. The graph ofg(x) is f(x) translated to the left 6 units and down 5 units. What is the functionrule for g(x
Nonamiya [84]
Add 6 to x^2  to  translate function to the left (x+6)^2, then minus 5 to move down: (x-6)^2-5
3 0
3 years ago
Find the length of the leg, please help, will give brainliest
iren2701 [21]

Answer:

7\sqrt{2}

Step-by-step explanation:

We know that the missing angle is 45 degrees and the hypotenuse is 14.

If both side angles equal to 45, according to base angle theorem, this triangle is isosceles.

Since this triangle is isosceles, the two legs must be equal. Let x be the legs.

According to the 45 45 90 triangle theorem, the hypotenuse is equal to \sqrt2*x

If 14 = \sqrt{2}*x

\frac{14}{\sqrt{2} } = x

Rationalize denominator

x = \frac{14}{\sqrt{2} } * \frac{\sqrt{2} }{\sqrt{2} }  = \frac{14\sqrt{2} }{2} = 7\sqrt{2}

The answer is 7\sqrt{2}

Hope this helps :)

6 0
2 years ago
Find the probability that a randomly chosen point in the
Yakvenalex [24]

Answer:

I'me sart

Step-by-step explanation:hi

6 0
3 years ago
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