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3 years ago

Which line segment is a reflection of AB in the x-axis

Mathematics

1 answer:

Ugo [173]3 years ago

8 0

Answer:

its IJ

Step-by-step explanation:

well, its obvious buddy, its asking which line is REFLECTED on the X-AXIS, which is the horizontal line across the screen. (think of the sun setting on the horizon).

so like a mirror, it should be the opposite side and not reflected across the Y-AXIS. hope this helps 6th/5th grader...

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The number of E.coli bacteria cells in a pond of stagnant water can be represented by the function below, where A represents the

liq [111]

Answer:

Option B. 59%

Explanation:

The function that represents the number of E.coli bacteria cells per 100 mL of water as the time t years elapses is:

$A(t)=136(1.123)^{4t}$

The base, 1.123, represents the multiplicative constant rate of change of the function, so you just must substitute 1 for t in the power part of the function:

$rate=(1.123)^{4t}=(1.123)^4=1.590$

Then, the multiplicative rate of change is 1.590, which means that every year the number of E.coli bacteria cells per 100 mL of water increases by a factor of 1.590, and that is 1.59 - 1 = 0.590 or 59% increase.

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3 years ago

Jacob is planning on buying a recliner that Cost $2150 The installment plan offered at the furniture storeRequires 9.5% Down pay

Tanzania [10]

Answer:

Step-by-step explanation:

7 0

2 years ago

Enter the correct value so that each expression is a perfect square trinomial

myrzilka [38]

Answer:

Step-by-step explanation:

1). x² - 10x + a²

By using the formula of (a - b)² = a² - 2ab + b²

x² - 2(5)x + a²

Therefore, for a perfect square of the expression a should be equal to 5.

Therefore, (x² - 10x + 25) will be the answer.

2). x² + 2ax + 36

= x² + 2(a)x + 6²

For a perfect square of the given expression value of a should be 6.

x² + 2(a)x + 6² = x² + 2(6)x + 6²

= (x + 6)²

Therefore, x² + 12x + 36 will be the answer.

3). $x^{2}+\frac{1}{2}x+a^2$

$x^{2}+2(\frac{1}{4})x+a^2$

To make this expression a perfect square,

a² = $(\frac{1}{4})^2$

$x^{2}+2(\frac{1}{4})x+(\frac{1}{4})^2$ = $(x+\frac{1}{4})^2$

Therefore, the missing number will be $\frac{1}{16}$ .

5 0

3 years ago

Inequality Show your step by step solution to this. 5-2x>17

bonufazy [111]

Answer: x<-6 *The answer should be the negative sign.*

Step-by-step explanation:

subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.

subtract 5 both sides of an equation.

5-2x-5>17-5

simplify.

-2x>12

multiply by -1 both sides of an equation.

(-2x)(-1)<12(-1)

simplify.

2x<-12

divide by 2 both sides of an equation.

2x/2<-12/2

-12/2=-6

12/2=6

6*2=12

12/6=2

x<-6

Hope this helps!

Thanks!

Have a great day!

3 0

3 years ago

if 5 billion pennies are minted each year, how long would it take to mint the pennies needed to stack to the sun? pls show all w

kvasek [131]

Answer:

98 years

Step-by-step explanation:

because the sun is 432,690 miles

3 0

2 years ago