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dlinn [17]
3 years ago
8

Explain how you can find the sign of the product of two or more rational numbers.

Mathematics
1 answer:
makkiz [27]3 years ago
6 0
Rational and product
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Find the Value of k that will make the function f(x) continuous everywhere.​
cricket20 [7]

well, if that function f(x) were to be continuos on all subfunctions, that means that whatever value 7x + k has when x = 2, meets or matches the value that kx² - 6 has when x = 2 as well, so then 7x + k = kx² - 6 when f(2)

f(x)= \begin{cases} 7x+k,&x\leqslant 2\\ kx^2-6&x > 2 \end{cases}\qquad \qquad f(2)= \begin{cases} 7(2)+k,&x\leqslant 2\\ k(2)^2-6&x > 2 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ 7(2)+k~~ = ~~k(2)^2-6\implies 14+k~~ = ~~4k-6 \\\\\\ 14~~ = ~~3k-6\implies 20~~ = ~~3k\implies \cfrac{20}{3}=k

6 0
2 years ago
(I need these answered asap and with work and explanation included)
erik [133]

Answer:

blue marbles - 2/9. red marbles - 3/9 = 1/3 clear marbles - 4/9. Davis got a 2/9 chance and Tessa got a 2/8 or 1/4 chance. I don't know about the last question. it might be 5/9 but I don't know sorry.

4 0
2 years ago
8x + 34. What does X equal
rosijanka [135]

Answer: x=-4.25

Step-by-step explanation:

First you put it in to y= mx+b form.

0=8x+34

Then you subtract 34 from both sides

-34=8x

Then you divide 8 from both sides

Leaving you with

x=-4.25

4 0
3 years ago
There are more cups in 5 gallons than in 22 quarts
ololo11 [35]

Answer:

The answer is false

Step-by-step explanation:

22 quarts is 5.5 gallons

5 0
3 years ago
Read 2 more answers
Write the sentence as an equation. The product of r and 338 plus 97 is the same as r.
Vitek1552 [10]

Answer:

Step-by-step explanation:

To write this sentence as equation

We get

r×338+97=r

338r+97=r

To solve further

r-338r=97

-337r=97

r=-0.2878

8 0
3 years ago
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