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3 years ago

Hey, pls help, i'll mark brainliest if ur answer is correct

Mathematics

1 answer:

stealth61 [152]3 years ago

5 0

Answer:

the answer is A

Step-by-step explanation:

20% + 20% = 40% = 20 Red roses

40% + 40% = 80% = 40 Red roses

80% + 20% = 100% = 50 Red Roses

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Plot J(-2,8), K(0,8), L(1,0), and M(1,-2) in a coordinate plane. Then determine whether JK and LM are congruent. A. Cannot be de

mr_godi [17]

Answer:

C. JK and LM are congruent

Step-by-step explanation:

Given the coordinates J(-2,8), K(0,8), L(1,0), and M(1,-2), in other to determine whether JK is congruent to LM, we need to determine if the length of side JK and LM are equal i.e JK = LM

To get JK:

We will find the distance between the coordinates J(-2,8), K(0,8) to get the length JK using the formula:

JK =√(x2-x1)²+(y2-y1)²

JK = √(0-(-2))²+(8-8)²

JK = √2²+0²

JK = √4

JK = 2

For the length of LM with coordinate L(1,0), and M(1,-2)

LM = √(1-1)²+(-2-0)²

LM = √0²+(-2)²

LM = √0²+2²

LM = √0+4

LM =√4

LM = 2

Since JK = LM = 2 units, this means that JK and LM are congruent.

7 0

3 years ago

Plz help me plz <br> Also phone reval XD

pychu [463]

Answer:

5.50

Step-by-step explanation:

5 = whole number

5 = Tenths

0 = Hundreths

5.50

<h3>Hope this Helps!</h3>

6 0

3 years ago

Read 2 more answers

2(x-8) + 4x = 6(x - 2) - 4

mrs_skeptik [129]

0=0, all numbers are solutions

5 0

3 years ago

Read 2 more answers

Use simpson's rule with n = 10 to approximate the area of the surface obtained by rotating the curve about the x-axis. compare y

Lubov Fominskaja [6]

y = ln x , 1 <= x <= 3, about x axis and n = 10, dy/dx = 1/ x

S = (b a) ∫ 2π y √( 1 + (dy/dx) ^2) dx

so our f(x) is 2π y √( 1 + (dy/dx) ^2)

(b - a) / n = / 3 = (3-1) / 30 = 1/15

x0 = 1 , x1 = 1.2, x2 = 1.4, x3 = 1.6 ....... x(10) = 3

So we have , using Simpsons rule:-

S10 = (1/15) ( f(x0) + 4 f(x1) + 2 f)x2) +.... + f(x10) )

= (1/15) f(1) + f(3) + 4(f(1.2) + f(1.6) + f(2) + f(2.4) + f(2.8)) + 2(f(1.4) + f(1.8) + f(2.2) + f(2.6) )

( Note f(1) = 2 * π * ln 1 * √(1 + (1/1)^2) = 0 and f(3) = 2π ln3√(1+(1/3^2) = 7,276)

so we have S(10)

= 1/15 ( 0 + 7.2761738 + 4(1.4911851 +

5 0

4 years ago

F(x) = x + 6 , find the ordered pair when x = -2.

ss7ja [257]

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

Answer: $\textsf{Option A, (-2, 4)}$

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

Given: $\textsf{f(x) = x + 6}$

Find: $\textsf{f(-2)}$

Solution: We need to plug in the value -2 into every variable x that we have in the expression and simplify to get the solution.

<u>Plug in the values</u>

$\textsf{f(x) = x + 6}$

$\textsf{f(-2) = -2 + 6}$

<u>Simplify</u>

<u /> $\textsf{f(-2) = -2 + 6}$

$\textsf{f(-2) = 4}$

Therefore, the ordered pair that would match would have a x-coordinate of -2 and a y-coordinate of 4 producing (-2, 4) which matches option A.

7 0

2 years ago