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Aneli [31]
3 years ago
5

Which expression is equivalent to the expression –6.4 – 12 + 4.6?

Mathematics
1 answer:
kow [346]3 years ago
6 0

The answer is -13.8.

Hope this helps!

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Solve 6x^2 - 42 = 0 for the exact values of x
GREYUIT [131]

Answer:

The values of x are

x=-\sqrt{7} , x=\sqrt{7}

Step-by-step explanation:

we have

6x^{2}-42=0

Solve for x

Adds 42 both sides

6x^{2}-42+42=0+42

6x^{2}=42

Divide by 6 both sides

6x^{2}/6=42/6

simplify

x^2=7

square root both sides

x=\pm\sqrt{7}

therefore

The values of x are

x=-\sqrt{7} , x=\sqrt{7}

6 0
3 years ago
John goes running every morning. He can run 3 miles in 1 hour. How many miles would he be able to run in 1 and ½ hours?
sp2606 [1]

Answer:

4.5 or 4 1/2 miles

Step-by-step explanation:

\dfrac{3\text{ miles}}{\text{hour}}\cdot 1.5 \text{ hours}= 3\cdot 1.5=4.5

Hope this helps!

5 0
3 years ago
I just need to know if these are parallel please,,,
Nataly_w [17]
These are parallel !
4 0
3 years ago
Read 2 more answers
Dominic makes and sells salsa. The function C = 2n + 200 represents his costs, in dollars, for producing n jars of salsa. His re
Elan Coil [88]

Answer:the function representing profit, P = 3n + 200

Step-by-step explanation:

The function C = 2n + 200 represents his costs, in dollars, for producing n jars of salsa.

The revenue, or the amount he receives for selling n jars, can be represented by the function R = 5n.

Profit = revenue - cost or expenses.

Therefore,

The function representing Dominic's profit, P, for selling n jars of salsa will be

P = 5n - 2n + 200 = 3n + 200

8 0
3 years ago
Read 2 more answers
Two times a number added to -4, subtracted from triple the sum of eight times the number and five
mr Goodwill [35]

Answer:

2x+(-4)-8x(3)-5

7 0
3 years ago
Read 2 more answers
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