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Elodia [21]
4 years ago
11

Will some one help me please will friend

Mathematics
1 answer:
aliina [53]4 years ago
7 0
Add the equations,just the way they appear there.

-- Add the top 'x' to the bottom 'x'.  Write the sum under the 'x's.
-- Add the '+y' and the '-y'.  Write the sum under the 'y's.
-- Add the '2' and the '4'. Write the sum under them, with n " = " sign
before it.

You should now have an equation with only 'x' in it and no 'y'.
You can easily solve that one and find out the value of 'x'.

Once you know the value of 'x', go back to either one of the original
equations, and plug the number-value of 'x' in place of 'x'.

You'll then have an equation with only 'y' in it and no 'x'.
You can easily solve that one and find out the value of 'y'. 


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Using the quadratic formula, which of the following are the zeros of the
Naddika [18.5K]

Answer:

The answer is the option A.

x=(5±)/4

Step-by-step explanation:

The quadratic formula has the following form for a quadratic equation ax²+bx+c:

x=(-b±))/(2a)

We apply the quadratic formula and we obtain:

x=(-(-5)±))/(2(2))

x=(-(-5)±))/(4)

x=(-(-5)±))/(4)

brainliest pls

3 0
2 years ago
The​ _____ _____, denoted ModifyingAbove p with caretp​, is given by the formula ModifyingAbove p with caretpequals=​_____, wher
Vlada [557]

Answer:

The​ <u>sample proportion</u>, denoted by  ^p​, is given by the formula ^p=​ \frac{x}{n}, where x is the number of individuals with a specified characteristic in a sample of n individuals.

Step-by-step explanation:

Sample proportion is used to determine sample mean, sample standard error and test the hypotheses about the population.

<em>sample mean</em> can be stated as p and <em>sample standard error</em> can be found using the equation\sqrt{\frac{p*(1-p)}{n} } where

  • n is the sample size
  • p is the sample proportion

And if n×p×(1-p)≥10, then sample is assumed large enough to assume normal distribution and apply statistical test.

3 0
3 years ago
Surface area of cuboid
mars1129 [50]
2 * (7.5 * 5) + 2 * (2.3 * 5) + 2 * (2.3 * 7.5) =
75 + 23 + 17.25 =
115.25 cm²


5 0
4 years ago
A quadratic function has a line of symmetry at x=-3.5 and zero at -9 what is the distance from the given zero to line of symmetr
g100num [7]

If a quadratic function has zero at x=-9, then point (-9,0) lies on the graph of quadratic function.

A line of symmetry has equation x=-3.5 that is x+3.5=0.

Use formula for the distance from point (x_0,y_0) to the line AX+By+C=0:

d=\dfrac{|Ax_0+By_0+C|}{\sqrt{A^2+B^2}}.

Thus,

d=\dfrac{|-9+3.5|}{\sqrt{1^2+0^2}}=5.5.

Answer: the distance is 5.5 units.

4 0
3 years ago
The population mean annual salary for flight attendants is $56,275. A random sample of 48 flight attendants is selected from thi
Anon25 [30]

Answer:

938383

Step-by-step explanation:

I am making this fake explanation for the points.. Got them, thanks!

7 0
3 years ago
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