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Gala2k [10]
2 years ago
7

Please help me with this question

Mathematics
1 answer:
ElenaW [278]2 years ago
5 0

Answer:

y = 1/2x - 2

Step-by-step explanation:

use formula y = mx + c

m = gradient

c = y intercept

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Area of square floor is 100 square centimeters,and the scale of the drawing is 1 centimeter:2ft,what is the area of the actual f
Taya2010 [7]
100 square centimeters means the dimensions are 10x10
but the actual floor will be 1cm:2ft
so 10cm=20feet
making the dimensions 20feetx20feet
the area of the actual floor is 400 feet
4 0
3 years ago
PLEASE HELP FOR A BRAINLIEST!!!! Create your own example and explain how to solve Quadratic Equation using Quadratic Formula. Wh
SVETLANKA909090 [29]

Step-by-step explanation:

1. Create your own example and explain how to solve Quadratic Equation using Quadratic Formula.

The quadratic formula is used to solve quadratic equations. It is shown as   x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

A quadratic equation is generally shown in the form of ax^{2} +bx + c = 0

For example, if you saw the equation  7x^{2} + 3x + 20 = 0

7 would be a, 3 would be b, and 20 would be c.

To solve the equation above, you would fill in the quadratic formula as such, x=\dfrac{-3\pm\sqrt{(3)^2-4(7)(20)}}{2(7)}

Then you could solve for x.

2. What part in the Quadratic Formula is the discriminant?

The discriminant is the equation under the square root on the quadratic formula, b^{2} - 4ac

It is tells us whether there are two solutions, one solutions, or no solutions.

3.  How do you know the number of solutions based on the value of the discriminant?

To know the number of solutions based off of the value of the discriminant, you need to plug in your values. Using the example quadratic equation, 7x^{2} + 3x + 20 = 0

We will plug the values into the discriminant.

3^{2} - 4(7)(20) = -551

Now, if the discriminant is positive it has two real solutions. If the discriminant is zero the equation has no real-number solutions. And finally, if the discriminant is negative, the equation has one real solution. Because our discriminant is -551, the example equation has one real solution.

Hope this helps! (Please consider Brainliest)

8 0
3 years ago
Can u help me I have 2 minutes to do this
Triss [41]

Answer:

0.2, 0.6,0.25,0.75,0.82

Step-by-step explanation:

so you u have to do it put least to greatest

3 0
3 years ago
Read 2 more answers
Can someone help my cousin? hes in 5th grade and im not sure if im right with this question. :)
agasfer [191]

Answer: 2.25 = 18.90

Step-by-step explanation: Hope This Helps

7 0
3 years ago
Find the nth term of this number sequence <br> 1
raketka [301]

Answer:

10

Step-by-step explanation:

hdgjjgggughggugfcghfxxgh

3 0
2 years ago
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