3 years ago

What are the vertex and x-intercepts of the graph of y= x2 - 4x - 21? Select

Mathematics

1 answer:

andreev551 [17]3 years ago

5 0

The answer is c and e.

Hope this helps!

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Write a real world problem that could be solved by using the equation <img src="https://tex.z-dn.net/?f=3x-25%3D125" id="TexForm

forsale [732]

Answer:

x=50

See below for word problem.

Step-by-step explanation:

While shopping, you spend $125 before tax. You buy 3 dresses at the same price each and receive a $25 discount. How much is the price of each dress?

3x-25=125

3x=125+25

3x=150

x=50

8 0

3 years ago

Three consecutive whole numbers are such that if they be divided by 5,3 and 4 respectively, the sum of the quotient is 40. What

Alja [10]

$\dfrac{x}{5}+\dfrac{x+1}{3}+\dfrac{x+2}{4}=40\\
12x+20(x+1)+15(x+2)=2400\\
12x+20x+20+15x+30=2400\\
47x=2350\\
x=50\\
x+1=51\\
x+2=52$

Then umbers are 50,51,52

4 0

3 years ago

Look at the attached file. <br><br> please show your work on how you got the answer

statuscvo [17]

Answer:

Step-by-step explanation:

$\frac{f(x)}{g(x)}$

= $\frac{2x+4}{2x^2+4x}$

Factor out 2 on the numerator and 2x on the denominator.

= $\frac{2(x+2)}{2x(x+2)}$

Cancel the factor (x + 2) on the numerator/ denominator

= $\frac{2}{2x}$ ← cancel the 2 on numerator/ denominator

= $\frac{1}{x}$ : x ≠ 0

8 0

3 years ago

How many solutions does 9x-18=3(3x-6) have?

spin [16.1K]

Answer: All Real Numbers Are Solutions

4 0

3 years ago

Now write as multiplying 10 to a power by 10 to a power.

natita [175]

10^10 is 10000000000

7 0

3 years ago