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LuckyWell [14K]
3 years ago
13

Solve the equation 7 (x-2)= 42

Mathematics
2 answers:
Flauer [41]3 years ago
7 0

Answer:

8

Step-by-step explanation:

7 is first multiplied into both sides of the parentheses

7x-14=42

then you add 14 to both sides to get rid of the 14 on the left side

7x-14=42

+14     +14

----------------

7x=56

then u divide 7x by both sides

7x/7=56/7

x=8

timofeeve [1]3 years ago
4 0

Answer:

x=8

Step-by-step explanation:

8-2=6

8x7=42

(checked)

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what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
3 years ago
What is the multiplicative rate of change for the exponential function graphed to the left?
garik1379 [7]

Hence, the function increases at a constant multiplicative rate..

<h2>What is a function?</h2>

function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

<h3>How to solve?</h3>

We know,

the answer is (B) the function increases at a constant multiplicative rate.

to learn more about functions: brainly.com/question/25638609

#SPJ2

6 0
2 years ago
2x + 5= 11 solve for x
garri49 [273]

Answer:

....................

7 0
3 years ago
Read 2 more answers
What is the product?<br> (x+3)(2x - 1)<br> 2x²-3<br> 2x²+66<br> O 2x²+5x-3<br> 2x²+6x-3
Bess [88]
It’s 2x^2 + 5x - 3.
5 0
3 years ago
If 5% of my stock is $70,000 what would 100% be?
Nataly_w [17]

Answer:

never did this with big numbers but i will try lol! okay so  the word "is" means the number after that with be of the top. And the word "of" (and the nummber after that) will always be on the bottom. so remember is/of

Step-by-step explanation:

5% so you will have 5/100

IS $70,000 (70,000 will be on the top of your fraction)

and you know what ill just give you the dang answer LOL!

is your answer 1,400,000? if so thats the answer

7 0
3 years ago
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