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aliina [53]
3 years ago
14

4x^2+5y^2=41 3x^2-4y^2=23

Mathematics
1 answer:
dybincka [34]3 years ago
5 0

Answer:

i dont know the answer sry

Step-by-step explanation:

srryyy

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Evaluate 2x^2+5x^2-5x^3 when x = 2
Margaret [11]

Answer:


question is 2x^2+5x^2-5X^3   if the value of x=2 then we put the value of x in equation= 2(2)^2+5(2)^2-5(2)^3   =2*4+5*4-5*8    = 8+20-40   =28-40   =-12 ans


5 0
3 years ago
Which line is parallel to y = 1/2x + 3?
Cloud [144]

Answer

y=1/2x-5

Step-by-step explanation:

any line with a 1/2 must be parallel also it cannot be the same line or they wont be parallel

3 0
3 years ago
Work out 2.9 cos 17° rounded to 2 d.p.
kirill115 [55]

Answer:

2.77

Step-by-step explanation:

2.9 cos (17) = 2.77

6 0
3 years ago
Read 2 more answers
(with solution)
Lunna [17]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and c the y- intercept )

(1)

Here m = 6 and b = - 2, then

y = 6x - 2

(2)

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Here m = - 2 and b = 5, then

y = - 2x + 5 ← equation in slope- intercept form

Add 2x to both sides

2x + y = 5 ← equation in standard form

(3)

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (6, - 13) and (x₂, y₂ ) = (- 4, - 3)

m = \frac{-3+13}{-4-6} = \frac{10}{-10} = - 1 , then

y = - x + b ← is the partial equation

To find b substitute either of the 2 points into the partial equation

Using (- 4, - 3 ) , then

- 3 = 4 + b ⇒ b = - 3 - 4 = - 7

y = - x - 7 ← equation in slope- intercept form

Add x to both sides

x + y = - 7 ← equation in standard form

8 0
3 years ago
15 − WHAT = 16 Please answer quickly! thank you!
vladimir2022 [97]

Answer: The answer to your question is -1 because 16 is -1 to 15.


5 0
3 years ago
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