2 years ago

Please help asap! And no links or weird answers, please :(

Mathematics

1 answer:

Sauron [17]2 years ago

4 0

Answer:

yes, because at every x is associated one and only one y

Step-by-step explanation:

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Find the value of Z for the triangles

kolbaska11 [484]

Answer:

z = 17.5

Step-by-step explanation:

segment RX is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

$\frac{RS}{RT}$ = $\frac{SX}{TX}$ , substitute values

$\frac{15}{z}$ = $\frac{6}{7}$ ( cross- multiply )

6z = 105 ( divide both sides by 6 )

z = 17.5

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2 years ago

Select all of the following that are quadratic equations.

Nesterboy [21]

Answer:

x^2 -2x = 4x+1

2x^2 +12x = 0

9x^2 +6x -3=0

Step-by-step explanation:

A quadratic equation has the highest power of x being squared

x^2 -2x = 4x+1

2x^2 +12x = 0

9x^2 +6x -3=0

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3 years ago

Read 2 more answers

After the 4th half life how much of the sample is left if the mass is 100g.

vazorg [7]

Answer:

$\huge\boxed{\sf 6.25 \ g}$

Step-by-step explanation:

After every Half life , Half of the mass is left.

After 1st Half life = 100 g / 2 = 50 g

After 2nd Half life = 50 / 2 = 25 g

After 3rd Half life = 25 / 2 = 12.5 g

After 4th Half life = 12.5 / 2 = 6.25 g

$\rule[225]{225}{2}$

Hope this helped!

6 0

2 years ago

What is the y-intercept of the quadratic function f(x) = (x – 8)(x + 3)?

frez [133]

Answer:

y-intercept is -24

Step-by-step explanation:

The solution is in the picture

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3 years ago

after two tests carol has a total score of 170. the score on her first test was 8 points higher than the score on her second tes

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X stands for the score of her first test
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2 years ago