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quester [9]
2 years ago
7

Twice a number decreased by four is greater than ten, what numbers satisfy this condition?

Mathematics
2 answers:
miss Akunina [59]2 years ago
5 0
10 times 2 equals 20 minus 4 is a number greater than 10. (16)
This would satisfy the condition.
lara31 [8.8K]2 years ago
3 0
<span>2x > 10+4
x > 14/2
x > 7</span>
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6x^2 + 3x - 1 =0 Use the Quadratic Formula to solve for X
Citrus2011 [14]
The answer is :x=3±√3312x=3±3312x≈0.72871355,−0.22871355
Use the quadratic formula to find the solutions.<span><span><span><span>−b</span>±<span>√<span><span>b2</span><span><span>−4</span><span>(<span>ac</span>)</span></span></span></span></span><span>2a</span></span><span><span><span>-⁢b</span>±<span><span>b2</span><span><span>-4</span>⁢<span>a⁢c</span></span></span></span><span>2⁢a</span></span></span>Substitute the values <span><span>a=6</span><span>a=6</span></span>, <span><span>b=<span>−3</span></span><span>b=<span>-3</span></span></span>, and <span><span>c=<span>−1</span></span><span>c=<span>-1</span></span></span> into the quadratic formula and solve for <span>xx</span>.<span><span><span>3±<span>√<span><span><span>(<span>−3</span>)</span>2</span><span><span>−4</span>⋅<span>(<span>6⋅<span>−1</span></span>)</span></span></span></span></span><span>2⋅6</span></span><span><span>3±<span><span><span>-3</span>2</span><span><span>-4</span>⋅<span>6⋅<span>-1</span></span></span></span></span><span>2⋅6</span></span></span>Simplify.Tap for less steps...Simplify the numerator.Tap for less steps...Raise <span><span>−3</span><span>-3</span></span> to the power of <span>22</span> to get <span>99</span>.<span><span>x=<span><span>3±<span>√<span>9<span><span>−4</span>⋅<span>(<span>6⋅<span>−1</span></span>)</span></span></span></span></span><span>2⋅6</span></span></span><span>x=<span><span>3±<span>9<span><span>-4</span>⋅<span>6⋅<span>-1</span></span></span></span></span><span>2⋅6</span></span></span></span>Multiply <span>66</span> by <span><span>−1</span><span>-1</span></span> to get <span><span>−6</span><span>-6</span></span>.<span><span>x=<span><span>3±<span>√<span>9<span><span>−4</span>⋅<span>−6</span></span></span></span></span><span>2⋅6</span></span></span><span>x=<span><span>3±<span>9<span><span>-4</span>⋅<span>-6</span></span></span></span><span>2⋅6</span></span></span></span>Multiply <span><span>−4</span><span>-4</span></span> by <span><span>−6</span><span>-6</span></span> to get <span>2424</span>.<span><span>x=<span><span>3±<span>√<span>9+24</span></span></span><span>2⋅6</span></span></span><span>x=<span><span>3±<span>9+24</span></span><span>2⋅6</span></span></span></span>Add <span>99</span> and <span>2424</span> to get <span>3333</span>.<span><span>x=<span><span>3±<span>√33</span></span><span>2⋅6</span></span></span><span>x=<span><span>3±33</span><span>2⋅6</span></span></span></span>Simplify the denominator.Tap for less steps...Rewrite.<span><span>x=<span><span>3±<span>√33</span></span><span>2⋅6</span></span></span><span>x=<span><span>3±33</span><span>2⋅6</span></span></span></span>Multiply <span>22</span> by <span>66</span> to get <span>1212</span>.<span><span>x=<span><span>3±<span>√33</span></span>12</span></span><span>x=<span><span>3±33</span>12</span></span></span>The result can be shown in both exact and approximate form.<span><span>x=<span><span>3±<span>√33</span></span>12</span></span><span>x=<span><span>3±33</span>12</span></span></span><span>x≈0.72871355,<span>−0.22871355</span></span>
7 0
3 years ago
Which of the following fractions is not
oksano4ka [1.4K]

Answer:

C. 3 3/8

Step-by-step explanation:

A. 1.6666666666666666666666666

B. 5.08333333333333333333333333

C. 3.375

8 0
2 years ago
Read 2 more answers
CAN YOU PLEASE HELPPPPP!!!!!!!!! PLSSS
ASHA 777 [7]

Answer:

y= -3/8x + 1

Step-by-step explanation:

-4 = x1

5 = y1

y-y1=m(x-x1)

y-5 = -3/8(x-(-4)

y-5 = -3/8x + -3/2

+5 +5

y= -3/8x + 1

3 0
2 years ago
Read 2 more answers
how many phone numbers are possible for the form ABC-XXXX? A is restricted to numbers 3-9 B,C and x can be any digit 1-9.
lakkis [162]
I have no idea but i have a friend ill send over that is good at this stuff
7 0
3 years ago
From each of Janet's weekly paychecks, $13.50 is deducted for health insurance. If her employer is paying 80% of the cost of thi
eimsori [14]

Given:

Weekly deduction = $13.50

Employer is paying 80% of the cost of this insurance

To find:

Total annual premium of Janet's insurance

Solution:

If 80% of the 13.50 is remitted weekly  then the weekly deduction will be,

\Rightarrow\frac{80}{100}\times13.50 = \$10.80

Then the amount remitted in a year will be as follows,

\Rightarrow\$10.80\times52 = \$561.6

(One year = 52 weeks)

Therefore, a total amount of $561.6 will be the the total annual premium for Janet's health insurance.

5 0
3 years ago
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