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Anastasy [175]
3 years ago
6

Solve for x - 4x + 5 = -2x-1

Mathematics
2 answers:
fomenos3 years ago
5 0
X = 3
Reason:
Move -2x to the left side
Move +5 to the right side
When switching a number form one side of the equation to the other, it changes the sign. -2x would be +2x, whole +5 would be -5.
The new equation would look like this.
-4x+2x = -5-1
-2x=-6
Then you divide by -2x
x=3
Travka [436]3 years ago
4 0

Answer:

the awncer to your question is x=3

Step-by-step explanation:

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slamgirl [31]
<span>The answers to this problem are:<span>(<span>±5</span></span>√3/8,±5/8)<span>Here is the solution:
Step 1: <span><span><span>x2</span>+<span>y2</span>=<span>2516</span>[2]</span><span><span>x2</span>+<span>y2</span>=<span>2516</span>[2]</span></span>

Step 2: Substitute:<span> 
</span><span><span>8<span><span>(<span>25/16</span>)^</span>2</span>=25(<span>x^2</span>−<span>y^2</span>)
</span><span>8<span><span>(<span>25/16</span>)^</span>2</span>=25(<span>x^2</span>−<span>y^2</span>)</span></span>
</span><span>x^2</span>−<span>y^2</span>=<span>25/32</span><span>.

Add [2] and [3]:<span> 
</span><span>2<span>x^2</span>=<span>75/32
</span><span>x^2</span>=<span>75/74</span></span>
<span>x=±5</span></span>√3/8<span>
Substitute into [2]:<span> 
</span><span><span>75/64</span>+<span>y^2</span>=<span>50/32
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<span>y=±<span>5/8</span></span>

</span>
</span>
3 0
4 years ago
Read 2 more answers
ALGEBRA! NEED HELP!
grigory [225]
The base's length is 8 and it's width is 7, so it's perimeter will be 2\cdot (7+8)=30 . To find the lateral area you shoul multiply this with it's height. So, 30\cdot h=150\\ h=\frac { 150 }{ 30 } \\ h=5 (h is height).

5 0
3 years ago
"A laboratory tested 73 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with LaTeX: \sigmaσ = 17.4
Scrat [10]

Answer:

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{17.4}{\sqrt{73}} = 3.99

The lower end of the interval is the sample mean subtracted by M. So it is 230 - 3.99 = 226.01

The upper end of the interval is the sample mean added to M. So it is 230 + 3.99 = 233.99.

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

4 0
3 years ago
What is the value of x?<br> Enter your answer in the box.
Liono4ka [1.6K]

Answer:

x = 80 degree

Step-by-step explanation:

As sum of all angles in a triangle is equal to 180

so:

According to the given figure:

70  + 30 + x = 180

By simplifying

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x = 80 degree

i hope it will help you!

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Common denominator between six and 44
Scilla [17]

The Least Common Multiple of 6 and 44 is 132.

4 0
3 years ago
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