3 years ago

Which ratios form a proportion?

Mathematics

1 answer:

LekaFEV [45]3 years ago

4 0

I would say D. 10/16, 5/8
Hope This helps :)

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Help quick please with explain

Paul [167]

Answer:

20= v+9+( -16 )

20= v-( 7 )

27= v

Step-by-step explanation:

Adding a negative is the sane as subtracting. Add like terms. Add 7 to both sides. 27= v

8 0

3 years ago

Which shows the correct substitution of the values a, b, and c from the equation 0 = 4x2 + 2x – 1 into the quadratic formula bel

neonofarm [45]

Answer:

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^2+bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^2-4ac} }{2a}$

in this problem we have

$4x^2 + 2x - 1=0$

$a=4$

$b=2$

$c=-1$

substitute in the formula

$x=\frac{-2(+/-)\sqrt{2^2-4(4)(-1)} }{2(4)}$

therefore

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

8 0

2 years ago

Read 2 more answers

Patrick is designing a large stained glass window for the library. If the area of the window is 36 feet, how long is each side

vova2212 [387]

Divide 36 by 4 sides of the window. = 9 square feet.

4 0

3 years ago

(5 hundreds 5 tens) ×10 explain

dezoksy [38]

550×10 I think how do you want it to be explained

7 0

4 years ago

Can the sides of a triangle have lengths 1, 3, and 10?

Troyanec [42]

Answer:

yes the sides of a triangle can have all those sides

3 0

3 years ago