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3 years ago

I need help on this look at picture above. Intercepts. I need help ASAP.

Mathematics

2 answers:

Marrrta [24]3 years ago

4 0

Answer:

y-intercept: (-3,0)

x-intercept (0,-1.2)

Step-by-step explanation:

Deffense [45]3 years ago

3 0

Answer:

(0, -6/5)

(-3, 0)

Step-by-step explanation:

y-intercept is when x is 0.

x-intercept is when y is 0.

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It cost you $12 to start up your

brilliants [131]

Step-by-step explanation:

let no. of hours be x.

45x - 12 ≥ 117

45x ≥ 129

x ≥ 2.8667 (5sf)

therefore, 3 hours (round up to next whole number).

Topic: inequalities

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

6 0

3 years ago

Professor wonders whether a student's homework average (X) could be used to predict their final grade in the course (Y) . She ca

Anna11 [10]

Answer:

The dependent variable is the final grade in the course and is the vriable of interest on this case.

H0: $\beta_1 = 0$

H1: $\beta_1 \neq 0$

And if we reject the null hypothesis we can conclude that we have a significant relationship between the two variables analyzed.

Step-by-step explanation:

On this case w ehave the following linear model:

$Y= 21.839 +0.724 X$

Where Y represent the final grade in the course and X the student's homework average. For this linear model the slope is given by $\beta_1 = 0.724$ and the intercept is $\beta_0 = 21.839$

Which is the dependent variable, and why?

The dependent variable is the final grade in the course and is the vriable of interest on this case.

Based on the material taught in this course, which of the following is the most appropriate alternative hypothesis to use for resolving this question?

Since we conduct a regression the hypothesis of interest are:

H0: $\beta_1 = 0$

H1: $\beta_1 \neq 0$

And if we reject the null hypothesis we can conclude that we have a significant relationship between the two variables analyzed.

3 0

3 years ago

If sin x = 1/4<br> and pi < x < 3pi/2 , find tan x exactly

arlik [135]

Answer:

$\sin(x) = \frac{1}{4} \\ { \sin }^{2} x = \frac{1}{16} \\ { \cos } x = \sqrt{1 - { \sin }^{2}x } \\ \cos(x) = \sqrt{1 - \frac{1}{16} } \\ \cos(x) = \sqrt{ \frac{15}{16} } \\ \tan(x) = \frac{ \sin(x) }{ \cos(x) } \\ \tan(x) = \frac{ \frac{1}{4} }{ \sqrt{ \frac{15}{16} } } \\ \tan(x) = 0.258$

5 0

3 years ago

WILL GIVE BRAINLEST<br>this table represents a quadratic function.....

KatRina [158]

Everything on the y-axis side is being added by odd numbers. Ex:(1,3,5,7,9, etc).

5 0

3 years ago

Perform the operation and state the domain.

irakobra [83]

I tried but I’m sorry I couldn’t get it

4 0

2 years ago