3 years ago

1 point

Mathematics

1 answer:

kolezko [41]3 years ago

7 0

Answer:

Step-by-step explanation:

I pretty sure that its 6 if nt sorry

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PLEASE HELP ASSAAAPPP (:

Likurg_2 [28]

In the equation $y=a(b)^x$ , a is the initial amount and b is the growth factor. So our initial amount is 30 and our growth factor is 8.3. Your correct choice for this is A.

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4 years ago

Which value is the best estimate for x? A=24.4 B=27.0 C=63.0 D=65.6

svp [43]

I think it’s C. 63.0

8 0

3 years ago

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number? x = –1 and x =

andrey2020 [161]

we have

$f(x)=x^{2}-2x-3$

Find the roots

Equate the function to zero

$x^{2}-2x-3=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2}-2x=3$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$x^{2}-2x+1=3+1$

$x^{2}-2x+1=4$

Rewrite as perfect squares

$(x-1)^{2}=4$

Square root both sides

$(x-1)=(+/-)2$

$x=1(+/-)2$

$x=1+2=3$

$x=1-2=-1$

therefore

the answer is

$x=3$

5 0

3 years ago

Read 2 more answers

2. Write 7x2 - 4 + 6x3 - 4x - x4 in standard form.

Hunter-Best [27]

Answer:

16-5x

Step-by-step explanation:

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3 years ago

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Your father will be going to your grandparents house for dinner.He drives 40 minutws at a constant soeed of 30 miles per houer.H

lorasvet [3.4K]

40 minutes is 2/3 of an hour.

30 miles per hour x 2/3 hour = 20 miles.

30 minutes = 1/2 hour.

60 miles per hour x 1/2 hour = 30 miles.

Total = 20 + 30 = 50 miles.

4 0

3 years ago