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3 years ago

Guys can you please help me I really dont understand algebra?

Mathematics

2 answers:

KonstantinChe [14]3 years ago

6 0

Yes it is linear since it's in the standard form Ax+By = C

A = 2

B = -8

C = 16

klio [65]3 years ago

6 0

Answer:

yes it's linear.

Step-by-step explanation:

you can determine if it's linear by check if you can make the equation be :

y=mx+b

so first, you can change the equation 2x-8y=16 to 8y=2x-16

and then, you can take out the common fact 2, which would be 4y=x-8

at this stage, you can even devide the whole by 4, wich the equation would be y=1/4x-2 or

y=1/4x+(-2) which is follow the equation y=mx+c, therefore, it is linear.

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A film starts at 15:35 and lasts 132 minutes. What time will it finish

Triss [41]

132min=2h 12min
15:35 + 2h 12min=17:47

4 0

3 years ago

Increasing and decreasing Functions (anyone help):

Alekssandra [29.7K]

Step-by-step explanation:

the function of increasing for -2.5 < x < 2.5

or written as :

x > -2.5

x < 2.5

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3 years ago

Ariel left her home at 9 a.m., driving at 45 mph. At 11 a.m. her brother left the home and started after her at 60 mph. At what

Vlada [557]

Answer:

5:00 pm

Step-by-step explanation:

Let

x -----> the umber of hours

y ----> the total distance in miles

we know that

The distance is equal to the speed multiplied by the time

Find out the distance traveled by Ariel at 11:00 am

11:00 am-09:00 am=2 hours

45(2)=90 miles

Ariel's linear equation is

$y=45x+90$ ----> equation A

Ariel's brother linear equation is

$y=60x$ ----> equation B

Equate equation A and equation B

$60x=45x+90$

Solve for x

$60x-45x=90$

$15x=90$

$x=6\ hours$

Adds 11:00 am + 6 hours=17:00 =5:00 pm

6 0

4 years ago

The altitude of a triangle forms a perpendicular line. False True

Ksivusya [100]

True is the answer for this question

4 0

3 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

$(AC)^{2}=369+99.22944809412$

$(AC)^{2}=468.22944809412$

Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

$AC=21.6386101238993629\approx 21.64$

Therefore, the length of b is 21.64 and option B is the correct choice.

6 0

3 years ago