All categories

3 years ago

Which are steps in the process of completing the square used to solve the equation 3 – 4x = 5x2 – 14x? Check all that apply.

Mathematics

2 answers:

Bond [772]3 years ago

7 0

Answer:

1. 3 = 5x2 – 10x

2. 8 = 5(x2 – 2x + 1)

3. StartFraction 8 Over 5 EndFraction = (x – 1)2

Step-by-step explanation:

3-4x=5x^2-14x

3=5x^2-14x+4x

3=5x^2-10x

5x^2-10x-3=0

1. 3 = 5x2 – 10x

2. 8 = 5(x2 – 2x + 1)

8=5x^2-10x+5

8-5=5x^2-10x

3=5x^2-10x

3. StartFraction 8 Over 5 EndFraction = (x – 1)2

8/5=x^2-2x+1

Cross product

8=5(x^2-2x+1)

8=5x^2-10x+5

8-5=5x^2-10x

3=5x^2-10x

Firdavs [7]3 years ago

7 0

Answer:

3 - 4x = 5x2 - 14x

= 3 - 5x2 = - 14x + 4x

= 3 - 10 = 10x

= 7 = 10x

= x = 7/10

= x = 0.7

Step-by-step explanation:

You might be interested in

Caleb is saving money for a new skateboard. So far he has saved $18. The cost of the skateboard is 6 times as great as the amoun

Murljashka [212]

Answer:

$108

Step-by-step explanation:

18 dollars times 6 equals 108.

5 0

2 years ago

Read 2 more answers

In the figure below what is the value in degrees of y + z.

xxMikexx [17]

Answer: 5. Can’t be determined

Step-by-step explanation: they didn’t give u any measurements for the variables so u can’t rlly assume what they are

7 0

3 years ago

In February, the amount of snowfall was 2 3/8 feet. In March, the amount of snowfall was 1 1/3 feet. What was the amount of snow

Lerok [7]

Answer:3 17/24 feet

2 3/8+1 1/3=3 17/24

Step-by-step explanation:

6 0

2 years ago

Britney is buying a shirt and a hat at the mall. The shirt costs $31.67, and the hat costs $19.10. If Britney gives the sales cl

VARVARA [1.3K]

Answer:

D). 49.23

That was a really easy question...

Step-by-step explanation:

Hope this helps!! Also heart and rate if you found this answer helpful!!

5 0

3 years ago

Read 2 more answers

Question:-

8090 [49]

Step-by-step explanation:

$\large \rm \red{\widetilde{Taking\ RHS:-}}$

$\rm :\longmapsto \dfrac{1}{3 + \sqrt{7}} \ + \ \dfrac{1}{\sqrt{7} + \sqrt{5}} \ + \ \dfrac{1}{\sqrt{5} + \sqrt{3}} \ + \ \dfrac{1}{\sqrt{3} + 1}$

<u>Rationalizing, we get</u>

$\rm :\longmapsto \dfrac{1}{3+\sqrt7} \times \dfrac{3-\sqrt7}{3-\sqrt7} + \dfrac{1}{\sqrt7 + \sqrt5} \times \dfrac{\sqrt7 - \sqrt5}{\sqrt7 - \sqrt5}$

$\rm + \dfrac{1}{\sqrt5 + \sqrt3} \times \dfrac{\sqrt5 - \sqrt3}{\sqrt5-\sqrt3} + \dfrac{1}{\sqrt3 + 1} \times \dfrac{\sqrt3 - 1}{\sqrt3 -1}$

$\rm :\longmapsto \dfrac{3 - \sqrt7}{(3)^2 - (\sqrt7)^2}$

$+ \dfrac{\sqrt7 - \sqrt5}{(\sqrt7)^2 - (\sqrt5)^2}$

$+\dfrac{\sqrt5 - \sqrt3}{(\sqrt5)^2 - (\sqrt3)^2} +$

$\dfrac{\sqrt3-1}{(\sqrt3)^2 - 1^2}$

7 0

3 years ago

Read 2 more answers