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katen-ka-za [31]
2 years ago
10

Evaluate the expression when x = 9.2 and y = 3.4. 5xy

Mathematics
1 answer:
Elden [556K]2 years ago
7 0
The answer is 156.4

5(9.2)(3.4)
156.4
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H e l p p l e a s e ; - ;
irina1246 [14]

Answer:

9/4

Step-by-step explanation:

if you use cross multiplication you can see that it would cross eachother out and becom one plz vote brainliest

5 0
2 years ago
Hey principal evenly distribute six copies of paper to eat fifth grade teachers. How many copies of paper does the fifth graders
Ipatiy [6.2K]
Okay if there are 8 teachers and 6 reams of paper you would have to divide 6 by 8 and you would get 0.75

6/8= 0.75

each teacher would get 0.75 (3/4) of a ream of paper
6 0
3 years ago
F(x) = 2x^2 − 3x − 5 Part
riadik2000 [5.3K]

Answer:  Answer  is in the steps..

Step-by-step explanation:

f(x)= 2x^{2} - 3x -5        

A) To find the x intercepts of a parabola we have to set the whole equation equal zero because the x intercept is when y equal zero in other words where f(x) equal zero.

 2x^{2}  - 3x - 5 = 0     Now solve using quadratic formula.

  x = -b±\frac{\sqrt{b^2 -4ac } }{2a}    

  x = 3 ± \sqrt{9+40} /2a  

   x = 3 ± \sqrt{49}  / 2a

   x= 3 ± 7 /4

   x= -1   or x = 5/2  

The x intercepts are  (5/2,0)  and (-1,0)

   

B)  The graph vertex of the graph of f(x)  is going to be at a minimum because the leading coefficient of the function has a positive integer which means the parabola will open up and its vertex will be at the minimum point.

 Using the  x coordinates  we could find their average and find the x coordinate of the   vertex.

\frac{5}{2} + -\frac{1}{1}  =  \frac{3}{2} / \frac{2}{1} = 3/4  

The x coordinate of the vertex  is 3/4 so we will input that into the equation and solve for the y coordinate  

2(\frac{3}{4})^2 - 3 (\frac{3}{4}) - 5   = 18/16 - 9/4 -5  =  -49/8

The y coordinate of the vertex  is  -49/8

So the vertex is (3/4, -49/8)  

C)   First  I will graph the vertex and then graph he two x intercepts and connect then like a U shape.

5 0
3 years ago
Which table shows the reflection of f(x) across the y-axis?<br> answer 4 brainliest
larisa [96]

The Correct graph is fourth one !

7 0
2 years ago
Read 2 more answers
Can i have some help pls
user100 [1]

Answer:

the first recipe

Step-by-step explanation:

We can answer by finding the ratio of nuts to cereal. The one that has the higher ratio of nuts to cereal is the nuttier one.

Recipe 1: 2 1/2 cups of nut per 5 cups of cereal.

nuts to cereal ratio = 2 1/2 : 5 = 1 : 2

Recipe 2: 1 cups of nuts per 3 cups of cereal.

nuts to cereal ratio = 1 : 3

1 : 2 is a higher ratio than 1 : 3

Answer: the first recipe

3 0
2 years ago
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