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gtnhenbr [62]
3 years ago
10

Solve for X Your answer must be simplified. -7x > 10

Mathematics
2 answers:
Bezzdna [24]3 years ago
7 0

Answer:

There are many solution for this problem

The solutions are -2, -3, -4..... And even fractions like -11/7, -12/7, etc.

Hope this helps!

fiasKO [112]3 years ago
6 0

For this case we indicate the solution of the following e-inequality:

-7x> 10

We divide between "-7" on both sides of the inequality, keeping in mind that when doing this operation the sign will change, since we operate with a negative sign.

So:

\frac {-7x} {- 7}> \frac {10} {- 7}\\x

Thus, the domain of the variable "x" is given by all the numbers smaller than --\frac {10} {7}

ANswer:

x

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8. If 4x = 12 - 7x, then x = ?
tino4ka555 [31]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x=1211x=1211

Decimal Form:

x=1.¯¯¯¯09x=1.09‾

Mixed Number Form:

x=1111

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

7 0
3 years ago
Read 2 more answers
Suppose a researcher is estimating the proportion of trees showing signs of disease in a local forest. They randomly sample 150
Serhud [2]

Answer:

0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107

0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227

And the 95% confidence interval would be given (0.107;0.227).

Step-by-step explanation:

Information given

X= 25 number of trees with signs of disease

n= 150 the sample selected

\hat p=\frac{25}{150}= 0.167 the proportion of trees with signs of disease

The confidence interval for the true proportion would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the significance is \alpha=1-0.95=0.05 and \alpha/2=0.025, and the critical value would be

z_{\alpha/2}=1.96

And replacing we got:

0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107

0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227

And the 95% confidence interval would be given (0.107;0.227).

6 0
3 years ago
Amy pays $1.71 in postage to mail a CD to a friend. She uses 41-cent stamps and 6-cent stamps. How many of each stamp did Amy us
Greeley [361]

Answer:

3 41-cent stamps and 8 6-cent stamps

Step-by-step explanation:

I believe she used 3 41-cent stamps (which is $1.23) with $0.48 leftover which we can use $0.06 to get rid of. We need to use 8 of the $0.06 stamps.

8 0
3 years ago
What is the value of tan A? <br><br> A) 8/10<br> B)6/10<br> C)8/6<br> D)6/8
salantis [7]

Answer:

tan is opposite over adjacent

tan A = 6/8

3 0
3 years ago
What is the solution to the gaming systems of linear equations 2X plus 3Y equals 13 for a 6+ 6Y equals 14
Artist 52 [7]

Answer:

(9/2, 4/3) or just x = 9/2, y = 4/3. (it's the same thing)

Step-by-step explanation:

First, multiply the first equation 2x + 3y = 13 by 2, so that you get 4x + 6y = 26. Now you have the same coefficient for y. Now, subtract the second equation 6y = 8 (i simplified it first) from the first one that is doubled. After that, you would have just one equation, 4x = 18. So x = 18/4 = 9/2. Substitute x to solve for y, and you'd get 4/3.

4 0
3 years ago
Read 2 more answers
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