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2 years ago

Pleaseplease help me

Mathematics

1 answer:

Mars2501 [29]2 years ago

4 0

Answer:

1,4

Step-by-step explanation:

The anwser is 1,4

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2k - 3(4 - k) = 3k + 4<br> whats k?

neonofarm [45]

They got it wrong it is actually k=8

7 0

2 years ago

The sum of the squares of two consecutive positive even integers is 52.Find the integers

ankoles [38]

Answer:

The two consecutive positive integers are $4$ and $6$ .

Step-by-step explanation:

Let $x$ be an even integer, then the next even integer is $(x+2)$ .

The sum of the squares of these even integers is $52$ .

We can write the following equation and solve for $x$ .

$x^2+(x+2)^2=52$ .

We expand to get,

$x^2+x^2+4x+4=52$ .

We simplify to get,

$2x^2+4x+4-52=0$ .

This gives us,

$2x^2+4x-48=0$

We divide through by 2 to get,

$x^2+2x-24=0$ .

This is now a quadratic trinomial

We split the middle term to get,

$x^2+6x-4x-24=0$ .

We factor to obtain,

$x(x+6)-4(x+6)=0$

$\Rightarrow (x+6)(x-4)=0$

$\Rightarrow (x+6)=0 or (x-4)=0$

$\Rightarrow x=-6 or x=4$

We discard $x=-6$ since it is not a positive integer.

$\therefore x=4$

Hence the two consecutive positive even integers are,

$4$

and

$4+2=6$

5 0

3 years ago

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The equation of the line of best fit of a scatterplot is y = -8x + 3. What is the y-intercept?

aivan3 [116]

Answer:

8 is the answer

Step-by-step explanation:

3 0

3 years ago

7. If a 12 pack of soda cost Mr. Key $3.84, what would the unit price be for

AlekseyPX

Answer:

32 cents

Step-by-step explanation:

3.84 ÷ 12 = 0.32 so 32 cents

7 0

3 years ago

Standardized Test Practice

Ulleksa [173]

Answer:

8x+6y=48

x+y=7

multiply bottom equation by 6:

8x+6y=48

6x+6y=42

subtract equations:

2x=6

divide 6 by 2:

x=3

therefore:

y=4

6 0

3 years ago

Read 2 more answers