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4 years ago

The sum of three consecutive numbers is 138,what are the numbers

Mathematics

2 answers:

Alina [70]4 years ago

6 0

They could be 45, 46 and 47.

Lisa [10]4 years ago

4 0

N+(n+2)+(n+3)
138,139,140 are consecutive numbers

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Identify the coordinates of the point shown. An image of a coordinate plane with one point plotted. It is 3 units to the left of

Alex17521 [72]

Answer:

(-3, -6)

Step-by-step explanation:

always start from the origin! Hope this helps!

7 0

3 years ago

I need help finding values of x,y,z. I want to know if there is an answer apart from 0, since that is what I need to find. Thank

vichka [17]

Answer:

They all equal zero

Step-by-step explanation:

A number cannot equal itself times any number that isn't zero, unless it itself is zero.

3 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

Hence final answer is -0.47.

7 0

3 years ago

A traffic helicopter descends 153 meters to be 445 meters above the ground, as illustrated in the

sertanlavr [38]

Answer:

598 meters

Step-by-step explanation:

In the problem, the word 'decend' means to decrease in elevation.

Our equation:

$? - 153 = 445$

Add 153 to both sides of the equation:

$?= 598$

598 meters represents the original height of the helicopter.

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2 years ago

Helpppppp please please

GenaCL600 [577]

3/10=4/x
3x=10(4)
3x=40
x=13.33

8 0

3 years ago