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mestny [16]
2 years ago
14

Solve (x-3)^2=5give your solutions correct to 3 significant numbers​

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
4 0

Answer:

(x-3)^2=5=>

(x-3)=±square root of 5

x=+sqr.root5+3 or x=-sqr.root5+3

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Find the integral, using techniques from this or the previous chapter.<br> ∫x/25-9x^2 dx.
kipiarov [429]

Answer:

\frac{x^{2} }{50} - 3x^{3} +C

Step-by-step explanation:

we are to find the integral of  \frac{x}{25} -9x^{2} dx.

we will integrate by using the principle of integration of a sum or difference of two functions by integrating them separately.

∫x/25-9x^2 dx = \frac{x^{2} }{2*25}- 9\frac{x^{3} }{3} +C

                       = \frac{x^{2} }{50}- 3x^{3} +C

8 0
3 years ago
A regression equation for this line is y = -0.42x + 19.26 a. What do the slope and y-intercept indicate? The slope indicates tha
qaws [65]

Answer:

B.The slope indicates that the percent is falling at about 0.4% each year. The y-intercept indicates the percent in 1985 should have been about 19%.

Step-by-step explanation:

A regression equation is it this form:

Y' = b0 + b1X

I am going to identify the slope and intercept in this equation to help us go further in our solution.

b1X is the slope. The slope usually has an x value multiplied to it

b0 is the intercept.

Back to our question, the equation in this question is

Y = -0.42X + 19.26

The slope is -0.42X.

The y intercept is 19.26

<em><u>The slope has a negative sign, this shows us that the percentage is falling by about 0.4% every year while an intercept of 19.26 tells us that percentage in 1985 should have been about 19%.</u></em>

I hope you found my solution useful?

8 0
4 years ago
Pls helppp me with this
Annette [7]

Answer:

15

Step-by-step explanation:

Applying,

The angle bisector theorem of triangle

From the diagram,

Since ΔAMT is an issoceless triangle,

Then,

Line OA divides Line MT into two equal parts.

Therefore,

Line MO = Line OT.............. Equation 1

From the diagram,

Line MO = 4x-1, Line OT = 3x+3

Substitute into equation 1

4x-1 = 3x+3

Collect like terms

4x-3x = 3+1

x = 4.

Therefore,

OT = 3(4)+3

OT = 12+3

OT = 15

7 0
3 years ago
A department store sells yellow and purple shirts. Each yellow shirt is the same price. Each purple shirt is the same price. How
Aleksandr [31]

Answer:

The Cost of  yellow shirts is $15 and the cost of purple shirt is $ 60

Step-by-step explanation:

Let cost of one yellow shirt be x

and the cost of one purple shirt be y

On Monday

5x + 7y = 165--------------------(1)

On Tuesday

4x + 11y = 213----------------------(2)

To solve (1) and (2)

multiplying eq(1) with 4

20x + 28y = 660--------------------(3)

multiplying eq(2) with 5

20x + 55y = 1056-------------------(4)

Subtracting (3) from (4)

20x + 55y = 1056

20x + 28y = 660

(-)

-----------------------------------

0x  +27y = 405

-----------------------------------

y = \frac{405}{27}

y = 15

Substituting y value in eq(1)

5x + 7(15) = 165

5x + 105 =405

5x =405 -105

5x =300

x = \frac{300}{5}

x =60

7 0
3 years ago
Read 2 more answers
What is the additive inverse of 999
s2008m [1.1K]

Answer:

−999

Step-by-step explanation:

So as we know the opposite of a number is its additive inverse. Meaning the opposite of 999 would be -999.

8 0
2 years ago
Read 2 more answers
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