All categories

3 years ago

If x = 3 and y = 5, what is 3x - 2y?

Mathematics

2 answers:

seraphim [82]3 years ago

8 0

Negative 1 because 3 x 3 is 9 and -2 x 5 is -10. Therefore 9-10= negative 1

EastWind [94]3 years ago

3 0

X = 3, y = 5
3x - 2y
3(3) - 2(5)
9 - 10
-1

You might be interested in

If a graph passes the horizontal line test, but not the vertical line test, is it still a function?

nydimaria [60]

If a graph fails the vertical line test it's not a function; you can't have a single x map to two ys.

Vice versa, if the graph passes the verticle line test, it's a function.

The horizontal line test tests for injectivity aka one-to-one-ness; it has no bearing on whether something's a function.

8 0

2 years ago

If √x / 6 = √x-1 / 3. What is x?

Pavlova-9 [17]

Option B is the answer
Hope this helps you..!!

3 0

3 years ago

Help please the question is in the picture

scoundrel [369]

Answer: I know R2 is reflexive property.

Step-by-step explanation:

5 0

2 years ago

Does the equation −2x + y = 0 represent a direct variation? If so, identify the constant of variation.

Vikentia [17]

Adding 2x to both sides we get

y = 2x

This is direct variation where the constant is 2.

3 0

3 years ago

In a survey of 1,532 former UF students, 84% said they were still in love with Tim Tebow. The survey's sampling error was 2%. Us

nalin [4]

Answer:

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

Step-by-step explanation:

step 1:-

Given sample survey former UF students n = 1532

84% said they were still in love with Tim Tebow

p = 0.84

The survey sampling error

$= \sqrt{\frac{p(1-p)}{n} }$

Given standard error of proportion = 2% =0.02

<u>Step 2</u>:-

The 99% of z- interval is 2.57

The 99% of confidence intervals are

p ± zₐ S.E (since sampling error of proportion = $\sqrt{\frac{pq}{n} }$

$(0.84 - 2.57X0.02 , 0.84 + 2.57X0.02)$

on simplification , we get

(0.84 - 0.0514 , 0.84 + 0.0514)

(0.79 , 0.89)

<u>conclusion</u>:-

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

4 0

2 years ago