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umka21 [38]
4 years ago
11

PLEASE PLEASE PLEASE PLEASE​ HELP ME!! I'LL GIVE POINTS, BRAINLY, AND FOLLOW, PLEASE HELP IF YOU CAN :)

Mathematics
1 answer:
Varvara68 [4.7K]4 years ago
3 0

Answer:

As we see, the quadratic formula, which is a formula that is used to solve quadratic equations, can easily come up in real-life situations. ... A quadratic equation is an equation that can be put in the form ax2 + bx + c = 0, where the highest exponent is 2.Every parabola has an axis of symmetry which is the line that divides the graph into two perfect halves. Like the ellipse the parabola and its applications can be seen extensively in the world around us. The shape of car headlights, mirrors in reflecting telescopes and television and radio antennae are examples of the applications of parabolas.arabolas have different features too. If a material that reflects light is shaped like a parabola, the light rays parallel to its axis of symmetry will be reflected to its focus, irrespective of where the reflection occurs. Conversely, if the light comes from the focus, it will get reflected as a parallel beam that is parallel to the axis of symmetry. These principles work for light, sound, and other forms. This property is very useful in all the examples seen in the real world.



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At a carnival, 700 tickets were sold for a total
Diano4ka-milaya [45]

Answer:

The adult tickets are <u>400</u> and the children tickets are <u>300</u>.

Step-by-step explanation:

Given:

At a carnival, 700 tickets were sold for a total  amount of $5500. An adult ticket cost $10   and a children's ticket cost $5.

Now, to find the  number of adult tickets and the number of  children's tickets sold.

<em>Let the number of adult tickets be </em>x.<em />

<em>And let the number of children tickets be </em>y.<em />

So, the total number of tickets sold:

x+y=700\\\\y=700-x\ \ \ ....(1)

Now, the total amount of tickets:

x(10)+y(5)=5500

Substituting the value of y from equation (1):

x(10)+(700-x)(5)=5500\\\\10x+3500-5x=5500\\\\5x+3500=5500

<em>Subtracting both sides by 3500 we get:</em>

<em />5x=2000<em />

<em>Dividing boths sides by 5 we get:</em>

x=400.<u />

<u>The number of adult tickets = 400.</u>

Now, substituting the value of x in equation (1) we get:

y=700-x\\\\y=700-400\\\\y=300.

<u>The number of children tickets = 300.</u>

Therefore, the adult tickets are 400 and the children tickets are 300.

8 0
4 years ago
Please help i’ll mark brainlest!!!!!
vitfil [10]
The answer to your question should be b
7 0
3 years ago
What is 6/21 + 5/28 for my homework??????
maksim [4K]
\frac{6}{21}+\frac{5}{28}=\frac{2}{7}+\frac{5}{28}=\frac{8}{28}+\frac{5}{28}=\frac{13}{28}
=====
\frac{2}{7}=\frac{2*4}{7*4}=\frac{8}{28}
7 0
4 years ago
Of the students at Grant Middle School, 63% are girls. The school newspaper is rendomly selecting a student to be interviewed. D
Tomtit [17]

Answer:

The complement as fraction = 37/100

As decimal = 0.37

As percentage = 37%

Step-by-step explanation:

Please kindly see the attached for more

7 0
4 years ago
-10,-6,-2,... (32nd )
zepelin [54]

Answer:

114

Step-by-step explanation:

xₙ = x₁ + 4* (n-1)

x₃₂ = - 10 + 4 * 31 = 114

4 0
4 years ago
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