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Irina18 [472]
3 years ago
12

Help !!! Pleaseeeeeeeeee

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0
Answer is 49
Formula is b^2-4(ac)
3^2-4(2*-5) while a=2, b=3, c=-5
9-4(2*-5)
9-4(-10)
9+40
49

Hope this helps!
You might be interested in
The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States was 423 eight-ounce s
Gekata [30.6K]

Answer:

The test results support the claim

Step-by-step explanation:

The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States was 423 eight ounce servings (Coca-Cola Company website, February 3, 2009).

Suppose you are curious whether the consumption of Coca-Cola beverages is higher in Atlanta, Georgia, the location of Coca-Cola’s corporate headquarters.

A sample of 36 individuals from the Atlanta area showed a sample mean annual consumption of 460.4 eight ounce servings with a standard deviation of s = 101.9 ounces. Using α = .05, do the sample results support the conclusion that mean annual consumption of Coca-Cola beverage products is higher in Atlanta?

Hx: u <= 423 oz

Ha: u > 423 oz (claim)

z(460.4) = (460.4-423)/[101.9/sqrt(36)] = 2.2022

p-value = P(z > 2.2022) = 0.0138

Conclusion: Since the p-value is less than 5%

reject Hx at the 5% significance level.

The test results support the claim.

7 0
3 years ago
Given that x and y vary inversely and that y is 8 when x is 2, what is the value of x when y is 18?
Savatey [412]

Answer:

8/9

Step-by-step explanation:

the equation is x = k / y

when x = 2 & y = 8 then k is 16

when you is 18 then x = 8/9

7 0
3 years ago
the westside bakery uses 440 pounds of sugar to make 1,000 cakes each cake contain the same amount of sugar how many pounds of s
rosijanka [135]
First of all, I like the name "westside" for a bakery. :)

OK, so, you can make a proportion for this problem.

440 lbs.= 1000 cakes.
? unknown =  1 cake.
 440 divided by 1000 = 0.44 pounds

3 0
4 years ago
Please help me its a propotional question and answer of Z Y X
tino4ka555 [31]
Since the only two corresponding side you have are 10 units and 4 units, you can divide these two numbers to get the scale factor.

10÷4=2.5

next you find the sides corresponding to X Y and Z and if it is on the bigger figure you divide, if it is on the smaller side you multiply

X corresponds with 5 (so ×2.5)
Y corresponds with 8 (÷2.5)
Z corresponds with 10 (÷2.5)

final answer is X=12.5 Y=3.2 Z=4

I try to explain the question and give the answer, I hope this helps!
5 0
3 years ago
Is y=1/4x^0.5 a power function? Explain your reasoning.
ki77a [65]
Yes because the general form of a power function is f(x)=cx^p, where c and p are real numbers. Since the function satisfies this form, the function is a power function. 
5 0
3 years ago
Read 2 more answers
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