Which of the following is a quadratic equation whose roots are 3 and -1?

Mathematics

1 answer:

Natali5045456 [20]3 years ago

4 0

Answer:

B: x²-2x-3=0

x1= -1 x2= 3

You might be interested in

A recipe calls for (1 3/8) cups of sugar to make 2 dozens cupcakes. How much sugar is needed to make 60 cupcakes?

trapecia [35]

Answer:

55/16 cups or 3.4375 cups

Step-by-step explanation:

there are 5 dozens (12) in 60, so there are 2.5 2 dozens in 60, so you would multiply 1 3/8 by 2.5 to find how many cups are needed in 60 cupcakes because 1 3/8 cups is for 2 dozen cupcakes

7 0

2 years ago

I need help plzzzzzzzzzz

ozzi

Ma th wa y is the answer

8 0

3 years ago

Read 2 more answers

Which of these triangle pairs can be mapped to each other using both a translation and a rotation about C

Bad White [126]

Answer:

D. On Ed

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

a chef uses 4 3/4 cups of broth for 10 servings of soup.how much broth is is one serving . let x represent amount. 4 3/4/10 =x/1

enyata [817]

Let's firstly convert the mixed fraction to "improper" and then proceed,

$\bf \begin{array}{ccll}
\stackrel{broth}{cups}&servings\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
4\frac{3}{4}&10\\\\
x&1
\end{array}\implies \cfrac{\quad \stackrel{mixed}{4\frac{3}{4}}\quad }{x}=\cfrac{10}{1}\implies \cfrac{\quad \frac{4\cdot 4+3}{4}\quad }{x}=\cfrac{10}{1}$

$\bf \cfrac{\quad \stackrel{improper}{\frac{19}{4}}\quad }{x}=\cfrac{10}{1}\implies \cfrac{\quad \frac{19}{4}\quad }{\frac{x}{1}}=\cfrac{10}{1}\implies \cfrac{19}{4}\cdot \cfrac{1}{x}=\cfrac{10}{1}\implies \cfrac{19}{4x}=\cfrac{10}{1}
\\\\\\
19=40x\implies \cfrac{19}{40}=x$

6 0

3 years ago

0.2(x + 15) = 0.5(3x - 7)

Dafna1 [17]

Are you asking if this is greater than, less than, or equal to?

8 0

3 years ago