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2 years ago

The roots of a quadratic equation are 4 and -5. Which quadratic equation has these roots?

Mathematics

1 answer:

Y_Kistochka [10]2 years ago

8 0

Answer:

(x-4)(x+5) or x^2+x-20

Step-by-step explanation:

If a root of the function is 4, (meaning that when y=0, x=4) it can be rewritten as x-4.

The same goes for if a root is -5. it will simplify to x+5.

These are called factors of a quadratic equation.

Put together, they look like (x-4)(x+5). Using the FOIL method, that can be simplified to x^2+x-20

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Function for g whose graph is similar to f(x)=3x^2 shifted right 6 units and upward 5 units

vladimir2022 [97]

$f(x) = 3 {x}^{2}$

function g has to be the transformation of function f. Therefore,

$g(x) = 3 {(x - 6)}^{2} + 5$

is the answer.

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2 years ago

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adoni [48]

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2 years ago

Solve - y = 34. Then graph the solution.

inysia [295]

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2 years ago

Big Big School has 25,000 students. Each student takes 2 classes a day and each teacher teaches 4 classes. Each class has 10 stu

mojhsa [17]

Answer: 1,250

Step-by-step explanation:

Given: The total number of students in the school= 25,000

Since each class has 10 students , therefore, the number of classes in the school= $\frac{25000}{10}=2500$

Also, Each student takes 2 classes a day, thus the number of classes taken by total teachers in a day = $2\times2500=5000$

Also, each teacher teaches 4 classes.

Then the number of teachers in the school = $\frac{5000}{4}=1250$

Hence, the number of teachers are at Big Big School = 1,250

4 0

3 years ago

Can someone help me on this?

vlada-n [284]

Answer:

the triangle PQR is similar to RTS

Step-by-step explanation:

QR : RT

2 : 6

this 1:3 ratio is also seen in PR (4) with RS (12)

8 0

3 years ago