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snow_lady [41]
2 years ago
9

PLEASE HELPP !!! it’s due today

Mathematics
1 answer:
pogonyaev2 years ago
6 0

Answer:

18

Step-by-step explanation:

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the ratio of girls to boys in the six grade class is seven to six. If there are 84 girls, how many boys are in the six grade
padilas [110]
There are 72 boys. 7:6 = 84:?, divide 84 by 7, you get 12. Multiply 6 by 12 to get the answer.
4 0
3 years ago
Use the Parabola tool to graph the quadratic function. f(x)=2x^2−12x+19 Graph the parabola by first plotting its vertex and then
Debora [2.8K]
To find the vertex of our parabola, we are going to use the vertex formula: For a quadratic of the form f(x)=x^2+bx+c it vertex (h,k) is given by h= \frac{-b}{2a}, k=f(h).
We can infet from our parabola that a=2 and b=-12. So lets replace those values in our formula:
h= \frac{-b}{2a}
h= \frac{-(-12)}{2(2)}
h= \frac{12}{4}
h=3
k=f(h)=2(3)^2-12(3)+19
k=2(9)-36+19
k=18-17
k=1
The vertex (h,k) of our parabola is (3,1)

Now to find our second point, we are going to evaluate our parabola at x=0
f(0)=2(0)^2-12(0)+19
f(0)=0+0+19
f(0)=19
Our second point is (0,19)

We can conclude that we can graph the parabola f(x)=2x^2-12x+19 using its vertex (3,1) and the point (0,19) as follows: 

7 0
3 years ago
Write an equation and use it to solve this question.
HACTEHA [7]
C. five sixth meters
5 0
3 years ago
Read 2 more answers
There were 326 students at the high school dance. There were 24 more girls than boys. How many girls and boys attended?​
abruzzese [7]

Answer:

187 girls 139 boys

Step-by-step explanation:

first you divide 326 by 2 to get 163, and then you add 24 to it to find how many girls and then you subtract 24 from it to find how many boys

4 0
3 years ago
Read 2 more answers
Help please.! and thank you
Alexxx [7]

Answer:

common difference is 4

Step-by-step explanation:

12-4=8

8-4=4

8 0
2 years ago
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