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1 year ago

Plz help! Solve the equation for x.

Mathematics

1 answer:

kondaur [170]1 year ago

6 0

Answer:

X can be any number

Step-by-step explanation:

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40=3x+x^2<br><br> How do I find the answer to this

tamaranim1 [39]

Answer:

x = -8, x = 5

Step-by-step explanation:

This can be solved using Factorization method:

$40 = 3x + {x}^{2} \\ \\ \implies \: {x}^{2} + 3x - 40 = 0 \\ \\ \implies \: {x}^{2} + 8x - 5x- 40 = 0 \\ \\ \implies \: x({x} + 8) - 5(x + 8) = 0 \\ \\ \implies \: ({x} + 8) (x - 5) = 0 \\ \\ \implies \: ({x} + 8) = 0 \: \: or \: \: (x - 5) = 0 \\ \\ \implies \: x = - 8 \: \: or \: \: x = 5 \\ \\ x = - 8, \: \: 5$

8 0

2 years ago

What is the best way to answer this mixed number 7 3/4 + 1 5/6

olga_2 [115]

9514 1404 393

Answer:

9 7/12

Step-by-step explanation:

12 is a suitable common denominator.

(7 3/4) + (1 5/6) = (7 9/12) + (1 10/12) = (7+1) +(9/12 +10/12)

= 8 + 19/12 = 9 + 7/12 . . . . . . change 19/12 to 1 7/12

= 9 7/12

_____

My calculator works with mixed numbers very nicely, as many graphing calculators do.

8 0

3 years ago

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A hardware store owner has 1,152 screws. If she wants to put them in packages of 32, how many packages can she make?

melomori [17]

Answer:

i think 36

Step-by-step explanation:

1152 / 32= 36

5 0

2 years ago

Complete the table thanks in advance

inna [77]

Y = 1/2 x

for x = 0 → y = 1/2 · 0 = 0
for x = 2 → y = 1/2 · 2 = 1

x | 0 | 2 |
y=1/2x| 0 | 1 |

y = x + 3

for x = 0 → y = 0 + 3 = 3
for x = -3 → y = -3 + 3 = 0

x | 0 | 3 |
y=x+3|-3 | 0 |

6 0

3 years ago

Mustafa contributes 11% of his $67,200 annual salary to his 401(k) plan. What is his pretax income?

Juli2301 [7.4K]

11% of $67,200.
We need to keep in mind that some words and numbers here aren't important, like 401(k) plan.
So what is 11% of $67,200?

$\frac{11}{100} * $67,200
$

$11*$672$

$7392

Hope this helps!

5 0

3 years ago

Read 2 more answers