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2 years ago

Help please I don’t know

Mathematics

1 answer:

RideAnS [48]2 years ago

8 0

Im pretty sure that means what is y when x is -5. the answer is 5

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What is 20+20909909090909090909090909090909090

Katena32 [7]

20,909,909,090,000,000,000,000,000,000,000,000

6 0

2 years ago

To two decimal places, find the value of k that will make the function f(x) continuous everywhere. f of x equals the quantity 3x

Fiesta28 [93]

Given function is

$f(x)=\left\{\begin{matrix}3x+k & x\leq -4 \\ kx^2-5 & x> -4\end{matrix}\right.$

now we need to find the value of k such that function f(x) continuous everywhere.

We know that any function f(x) is continuous at point x=a if left hand limit and right hand limits at the point x=a are equal.

So we just need to find both left and right hand limits then set equal to each other to find the value of k

To find the left hand limit (LHD) we plug x=-4 into 3x+k

so LHD= 3(-4)+k

To find the Right hand limit (RHD) we plug x=-4 into

$kx^2-5$

so RHD= $k(-4)^2-5$

Now set both equal

$k(-4)^2-5=3(-4)+k$

$16k-5=-12+k$

$16k-k=-12+5$

$15k=-7$

$k=-\frac{7}{15}$

k=-0.47

<u>Hence final answer is -0.47.</u>

7 0

3 years ago

Need help with this right now

jenyasd209 [6]

Answer:

A = (2x+1)(3x+4)

Step-by-step explanation:

Area is length × height

4 0

2 years ago

Daniel works at a nearby electronic store he makes a commission of 15% on everything he sells if you saw the laptop for $293 how

weqwewe [10]

He makes commission of 15% on everything he sells.....so if he sells 293 worth of stuff, then he would make 15% of 293

15% of 293.....turn ur percent to a decimal..." of " means multiply
0.15 * 293 = 43.95 <==

8 0

3 years ago

Angle rqs and tqs are linear pair where angle rqs equal 2x+4 and angle tqs equal 6x+20 solve for x

Ulleksa [173]

The answer is x = -2 you move the all x to one side and all numbers to the other side. then divide to find x

8 0

3 years ago