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3 years ago

Which is a graph of a proportional relationship?

Mathematics

1 answer:

hoa [83]3 years ago

7 0

Answer:

bottom left graph

Step-by-step explanation:

A proportional relationship is linear, represented by a straight line graph passing through the origin.

The graph on the bottom left is straight line passing through the origin.

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19/10 rational or irrational ?

yarga [219]

Definition of a rational number:

A rational number is a number that can be written as fraction of integers.

19/10 is a fraction.

19 and 10 are integers.

19/10 follows exactly the definition of a rational number, so it is rational.

3 0

3 years ago

Hellpppp meee pleaseee:/

Harman [31]

1. convert to improper fractions

3/2 x -5/4= -15/8= -1 7/8

4 0

4 years ago

(please help!) find x.

Alina [70]

Answer:

x = 6√2

Step-by-step explanation:

It is a 45°45°90° triangle so you can use the ratio.

x : x√2

x = 6√2

6 0

3 years ago

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. If the the flagpole is 18 ft tall, how tall

xxTIMURxx [149]

Answer: 78.8 ft

<u>Step-by-step explanation:</u>

Similar triangles have proportional sides.

$\dfrac{\text{building shadow}}{\text{building height}}=\dfrac{\text{flagpole shadow}}{\text{flagpole height}}\\\\\\\dfrac{35}{\text{building height}}=\dfrac{8}{18}\\\\\\\dfrac{35\times 18}{8}=\text{building height}\\\\\\\dfrac{35\times 9}{4}=\text{building height}\\\\\\\dfrac{315}{4}=\text{building height}\\\\\\\boxed{78.75=\text{building height}}$

3 0

3 years ago

Multiple choice equation

Nat2105 [25]

★ QUADRATIC EXPRESSION ★

General standard quadratic equation -
$ax {}^{2} + bx + c = 0$
$x = \frac{ - b + - \sqrt{b {}^{2} - 4ac} }{2a}$

Comparing the coefficients -

a = 10
b = 3
c = -2

Hence the acquired quadratic is -

$10x {}^{2} + 3x - 2 = 0$
$or$
$2 = 3x + 10x {}^{2}$
Option B is correct

7 0

3 years ago

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