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max2010maxim [7]
3 years ago
11

Solving quadratic equations using square roots (2/5)(x+3)^2=5

Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

x =  - 3 +  \frac{5 \sqrt{2} }{2} \\   - 3 -  \frac{5 \sqrt{2} }{2}
x = .5355339 \\  - 6.5355339

I think that's what your looking for
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What is the completely factored form of d4-8d2+16
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Solution:

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{({d}^{2})}^{2}-2({d}^{2})(4)+{4}^{2}

2) Use Square of Difference: {(a-b)}^{2}={a}^{2}-2ab+{b}^{2}
{({d}^{2}-4)}^{2}

3) Rewrite {d}^{2}-4​ in the form {a}^{2}-{b}^{2}​​ , where a=d and b=2
{({d}^{2}-{2}^{2})}^{2}
​​
4) Use Difference of Squares: {a}^{2}-{b}^{2}=(a+b)(a-b)
​{((d+2)(d-2))}^{2}

5) Use Multiplication Distributive Property: {(xy)}^{a}={x}^{a}{y}^{a}
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Done!
8 0
3 years ago
Read 2 more answers
A measuring wheel is used to calculate the length of a path. The diameter of the wheel is 8 inches. If the wheel rotates 15 time
Oksi-84 [34.3K]
To fint the length first one must find circumference to do that we use the formula D*Pi (diameter times Pi. Diameter = 8 Pi is the constant of 3.1415
so. 8*3.1415 = appox 25.1327. cow that we have  circumference we should multiply by the amount of times the wheel rotates (15)
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8 0
2 years ago
Part A: how many solutions dose the pair of equations for lines A and B have?
Ede4ka [16]

Any line can be expressed in the form y=mx+b where m is the slope and b is y intercept.

Two lines can either be parallel ,overlap or meet at one point .Let us look at different cases :

1)When two lines are parallel they do not intersect at any point and hence the system of equations have no solution.

2) When two lines overlap each other then the two lines touch each other at infinite number of points and we say the system of equations have infinite solutions.

3) When two lines intersect each other at one point we say the system of equation has one solution.

Part A:

The given lines are intersecting at one point so we have one solution.

Part B:

The point of intersection is the solution to the system of equations .In the graph the point of intersection of the lines is (4,4)

Solution is (4,4)

8 0
2 years ago
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Rectangle A measures 9 inches by 3 inches. Rectangle B is a scaled copy of rectangle A.Select all of the measurements pairs that
umka2103 [35]

Answer:

3 inches by 1 inches or 6 inches by 2 inches. Both answera are correct

Step-by-step explanation:

just an equivalent ratio

hope this helps can I get brainliest

7 0
2 years ago
When simplified, the algebraic expression (2 a - 3 b ) 2 is a binomial.<br><br><br> True or False
scoray [572]
True i think but i'm not postive
7 0
2 years ago
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