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IgorC [24]
4 years ago
7

Check My Work?

Mathematics
2 answers:
postnew [5]4 years ago
8 0
I think you are correct
y=ab^x
1=ab^3
4=ab^5
divide the second equation by the first one, you get b^2=4, so b=2
plug b=2 either equation you get b=1/8
natita [175]4 years ago
5 0
Hi Alice!

Just in case you would like to see another explanation about this problem, see the picture below.


I told you your answer was correct in PM but I forgot to answer and I just remember :)

I hope this helps!

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I need y=x^2+6x+5 in factored form. Please help quickly !
Alex_Xolod [135]

Haven't you learned how to find it without outside help ?

     x² + 6x + 5  =  (x + 5) (x + 1)
5 0
3 years ago
In one U.S.​ city, the quadratic function f (x )equals 0.0039 x squared minus 0.42 x plus 36.79 models the​ median, or​ average,
Leviafan [203]

Answer:

The average age was minimum at 1954 and the average age is 25.5.

Step-by-step explanation:

The given quadratic function is

f(x)=0.0039x^2-0.42x+36.79

It models the​ median, or​ average, age,​ y, at which men were first married x years after 1900.

In the above equation leading coefficient is positive, so it is an upward parabola and vertex of an upward parabola, is point of minima.

We need to find the year in which the average age was at a minimum​.

If a quadratic polynomial is f(x)=ax^2+bx+c, then vertex is

Vertex=(-\dfrac{b}{2a},f(-\dfrac{b}{2a}))

-\dfrac{b}{2a}=-\dfrac{(-0.42)}{2(0.0039)}=53.846153\approx 54

54 years after 1900 is

1900+54=1954

Substitute x=54 in the given function.

f(54)=0.0039(54)^2-0.42(54)+36.79=25.4824\approx 25.5

Therefore, the average age was minimum at 1954 and the average age is 25.5.

8 0
3 years ago
A food pantry distributes 10-ounce bags of flour. A supermarket donates nine 5-pound bags to the pantry. How many 10-ounce bags
DanielleElmas [232]
Given:
nine 5 pound bags 
distributed into 10-ounce bags

1 pound = 16 ounces

9 x 5 pounds = 45 pounds

45 pounds * 16 ounces/lbs = 45 * 16 oz = 720 ounces

720 ounces / 10 ounce bags = 720/10 = 72 bags.

The workers at the food pantry will be able to make 72 bags.
3 0
4 years ago
A recipe for 1 batch of muffins included 2/3 cup of raisins. She made 2 1/2 batches of muffins. How many cups of raisins did she
choli [55]

Answer:

If she made <u>2</u> <em>1/2</em> batches of muffins and you had 2/3 of raisins per 1 batch then you'd have a total of 1 2/3 cups of raisins

Step-by-step explanation:

1 batch= 2/3 cups

<u>2 batches</u>=4/3 cups or 1 and 1/3 cups

<em>1/2 batch</em>= 1/2 of 2/3= 1/3 cups

2 batches+1/2 batches= 1 and 1/3 cups+1/3 cups

1 and 1/3 cups+1/3 cups= 1 and 2/3 cups of raisins

3 0
3 years ago
HELP ASAP!!!! There is a clip below.
Ad libitum [116K]

Answer:

3.125

Step-by-step explanation:

We just multiply the dimensions together and when we do so we get 3.125.

4 0
3 years ago
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