2 years ago

Need help with these two math problems

Mathematics

1 answer:

Gnom [1K]2 years ago

8 0

Answer:

y = (x - 1)(x - 3)

y = (x + 2)^2

Step-by-step explanation:

Has roots at x = {1, 3}

y = (x - 1)(x - 3)

Has double root at x = -2

y = (x + 2)^2

You might be interested in

Ms. Jackson is driving from south bend to Indianapolis. She measures a distance of 4.3 cm between the cities on her Indiana road

nevsk [136]

Step-by-step brainly.com/question/14494293?answeringSource=feedPersonal%2FquestionPage

6 0

2 years ago

Read 2 more answers

If 2^(x+3) - 2x = k(2^x) what is the value of k

svlad2 [7]

Answer:

$\large\boxed{C)\ 7}$

Step-by-step explanation:

Use:

$a^n\cdot a^m=a^{n+m}$

$2^{x+3}-2^x=2^x\cdot2^3-2^x=8\cdot2^x-2^x=(8-1)\cdot2^x=7\cdot2^x\\\\2^{x+3}-2^x=k(2^x)\\\\7\cdot2^x=k(2^x)\Rightarrow k=7$

$8\cdot2^x-2^x=8\cdot2^x-1\cdot2^x=(8-1)(2^x)=7\cdot2^x\\\\\text{distributive property:}\ a(b-c)=ab-ac$

8 0

3 years ago

8% of 70 is what number? (please explain)

Bingel [31]

Do a proportion
8/100= x/70
Cross multiply and divide
70 x 8= 560
560 divided by 100= 5.6
Answer is 5.6

You also could have done .08 x 70 which is also 5.6

7 0

2 years ago

The sum of two numbers is 7.If one number is subtracted from the other, the result is negative 3.Find the numbers.

Natali5045456 [20]

The numbers are 5 and 2.

5 + 2 = 7

5 - 2 = -3

6 0

3 years ago

Read 2 more answers

AB and CD are parallel. EF is the translation of AB. Is EF parallel to CD? Justify. What does this prove about the effect of tra

sergij07 [2.7K]

Yes, EF is parallel to CD. Translation is the simple slide of a shape, therefore it doesn't have an effect on parallel lines.

8 0

2 years ago

Read 2 more answers