All categories

2 years ago

What effect does the "a" value have on the function f(x)=log(x)

1 answer:

5 0

I would guess they're referring to some general form first<span>f(x)=alog(x−h)+k</span>Where 'h' represents horizontal shifts, 'k' vertical shifts and 'a' stretches the function. "a" will also reflect the function across the x-axis if the value is negative. But NOT across the y-axis. I hope that's the place they wanted to put the a at least

You might be interested in

Can you help me please.

Kamila [148]

9514 1404 393

Answer:

a. (-1/2, 5)

Step-by-step explanation:

The coefficients of x have opposite signs, so the x-terms can be eliminated by adding the two equations.

(2y -12x) +(3y +12x) = (16) +(9)

5y = 25 . . . . . . simplify

y = 5 . . . . . . . . .divide by 5

This matches only answer choice A.

<em>Check</em>

The other part of answer choice A is x = -1/2. We can test this to make sure it works:

2(5) -12(-1/2) = 16

10 + 6 = 16 . . . . . . true, the selected answer works OK

5 0

2 years ago

Please help, nobody is helping I need to find surface area

Reil [10]

Answer:

A) 147.6 sq m

Step-by-step explanation:

Separate the pyramided out into 4 triangles and add those

3 of them (sides) will be the same

$A=h\frac{b}{2} \\A=10\frac{4}{2} \\A=20$

This is one half of the side, multiply by 2 to get the area of the entire side, 40 square m.

The area of all 3 sides together is 40*3 = 120 sq m

For your base, your height will be 6.9 and your base is 4

A = 13.8 sq m

multiply by 2 again for the entire base

A=27.6 sq m

Now add both

120 + 27.6

3 0

2 years ago

URGENT TEST I HAVE!!!!

Lerok [7]

Answer:

I think they are asking the area of the triangle so we are going with that.

Step-by-step explanation:

Easiest way to do this is find the area of the incomplete square, and then cut that in half for the triangle.

so it is 4 cm wide

and 8 cm tall

length x width = area

8 x 4 = 32

32/2 = 16

So your answer should be 16 cm

6 0

2 years ago

Which of these expressions are equivalent? Show your work

ivanzaharov [21]

Answer:

7(2+3x)-3x and 4(3+3x)+2(1+3x)

Step-by-step explanation:

7(2+3x)-3x

= 14 + 21x - 3x

= 18x + 14

2(6x+7)+10x

= 12x + 14 + 10x

= 22x + 14

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

= 12 + 12x + 2 + 6x

= 18x + 14

7(2+3x)-3x and 4(3+3x)+2(1+3x) are equal expressions.

3 0

2 years ago

The Pine Apple Store found that 18% of their weekly customers would purchase a new R-phone before leaving the store. If this was

Ahat [919]

Answer:

350 customers

Step-by-step explanation:

Since this is a ratio question and we only have variable that we need to solve (total people that entered last week), Then we can use the Rule of Three to solve this problem. We do this by multiplying the diagonal values of the following model and dividing by the third value in order to find the variable, like so...

18% of customers <====> 63 customers

100% of customers <====> x customers

(100 * 63) / 18 = x

6,300 / 18 = x

350 = x

Finally, we can see that a total of 350 customers entered the store last week.

4 0

2 years ago