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4 years ago

Question 5 is attached! 11 pts +6 for the best!

Mathematics

1 answer:

Irina18 [472]4 years ago

7 0

6 - 8c = -10 - 10c

and you're solving for c. what you really need to do in problems like this is combine like terms: -10 and 6 are like terms, because they are numbers without variables. -8c and -10c are like terms, because they are variables with coefficients.

6 - 8c = -10 - 10c ... add 10c to both sides
6 + 2c = -10 ... subtract 6 from both sides
2c = -16 ... divide both sides by 2
c = -8 is your result.

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Evaluate the given expression at x= -4<br> -3x + 2x^2 + 2

Mkey [24]

Answer:

$\huge{ \boxed{ \bold{ \text{46}}}}$

Step-by-step explanation:

If the value of variables of algebraic expression are given, the value of the term or expression can easily obtained by replacing the variables with numbers.

$\text{ \underline{ Given}} : \text{x = - 4}$

$\text{ \underline{ To \: find}} : \sf{value \: of \: - 3x + 2 {x}^{2} + 2}$

$\text{ Plug \: the \: value \: of \: x}$

$➝ \: \sf{ - 3 * (- 4 )+ 2 * {( - 4)}^{2} + 2}$

$\text{Remember!} : \text{Multiplying \: a \: negative \: integer \: by \: negative \: integer \: gives \: a \: positive \: integer.}$

➝ $\sf{12 + 2 * {( - 4)}^{2} + 2}$

$\text{Evaluate \: the \: power}$

➝ $\text{12 + 2 * 16 + 2}$

$\text{Multiply \: the \: numbers}$

➝ $\text{12 + 32 + 2}$

$\text{Add \: the \: numbers}$

$➝ \boxed { \text{46}}$

$\text{Hope \: I \: helped!}$

$\text{Best \: regards!}$

~ $\text{TheAnimeGirl}$

7 0

3 years ago

Read 2 more answers

What is 4.2 kilometers in meters

vovikov84 [41]

THE ANSWER IS 42,000.

TO GET THIS WE KNOW THAT 1 KILOMETERS IS 10,000.

SO YOU TAKE 4.2 AND MULTIPLY IT BY 10,000. THAT EQUALS 42,000.

4 0

3 years ago

I will mark either the best or the first answer.<br> Btw, please don't answer with nonsense.

boyakko [2]

Answer:

6.8, 26.2, -7.8, -10.2, 2.6, -12.9

Step-by-step explanation:

20. is 6.78232 Rounded answer is 6.8

21. 26.172504657 rounded to the nearest tenth is 26.2

22. is -7.8102496759 rounded to the nearest tenth is -7.8

23. -10.246950766 rounded to the nearest tenth is -10.2

24. is 2.5980762114 rounded to the nearest tenth is 2.6

25. -12.942179106 rounded to nearest tenth is -12.9

7 0

3 years ago

Read 2 more answers

If three pounds of coffee costs $22.56, what is the cost of 1

NeX [460]

Answer:

$7.52 = 7 dollars and 52 cents.

Step-by-step explanation:

Given that three pounds of coffee = $22.56

1 pound of coffee = $22.56/3

Thus, we would have:

$\frac{22.56}{3} = 7.52$ .

A pound of coffee = $7.52

$7.52 = 7 dollars and 52 cents.

8 0

3 years ago

Which graph represents the function of f(x) = the quantity of 9 x squared minus 36, all over 3 x plus 6?

love history [14]

F ( x ) = ( 3 x + 6 ) ( 3 x - 6 ) / ( 3 x + 6 ) = 3 x - 6
and for domain : 3 x + 6 ≠ 0
3 x ≠ - 6
x ≠ - 2
anwser graph of 3 x - 6, with discontinuity at - 2

6 0

3 years ago