Mathematics College

(Pre calc) I only need to do part A i would love to have some help I will make it 120 Points

Answers

Answer 1

Answer:

The domain should be X

Step-by-step explanation:

I'm a bit unsure but I think it's correct

Related Questions

need help with this plz

Answers

Answer:

[tex]x = \frac{ - 24 \pm \sqrt{ - 288} }{4} \\ = \frac{ - 24 \pm \sqrt{ ( - 1) {(12)}^{2} (2)} }{4} \\ = \frac{ - 24 \pm \sqrt{ - 1} \sqrt{ {12}^{2} } \sqrt{2} }{4} \\ = \frac{ - 24 \pm i 12\sqrt{2} }{4} \\ =-\frac{24}{4}\pm \frac{i12\sqrt{2}}{4}\\= - 6 \pm \: i3 \sqrt{2} [/tex]

(BRAINLIEST to best answer) - Write a linear equation that goes through (1, 3) and (2, 6).

Answers

Answer:

y = 3x

Step-by-step explanation:

Using the given points find the slope and the y- intercept.

y = mx + b

The slope is:

m = (6 - 3)/(2 - 1) = 3/1 = 3

The y- intercept is:

3 = 3*1 + b3 = 3 + bb = 0

The line is:

y = 3x

(1,3)(2,6)

Slope

m=6-3/2-1m=3

Equation in point slope form

y-3=3(x-1)y-3=3x-3y=3x

A submarine dove to a level of 450 meters below the surface of the ocean. Later it
climbed 270 meters and finally dove 80 meters more. At what depth did it stop?

Answers

Answer:

260 Meters Below the Surface

Step-by-step explanation:

"Dove 450 meters" = - 450

"Climbed 270 meters" = +270

"Dove 80 meters more" = - 80

-450+270-80

-180-80

-180+(-80)

-260 or 260 Meters Below the Surface

Find the slope of the line that passes through (−1, 3) and (1, 13).

Answers

Answer:

Step-by-step explanation:

Slope = (change in y)/ (change in x)

= (13 - 3)/(1 - (-1))

= (13 - 3)/(1 + 1)

= 10/2

= 5

9.35 x 9 = 3.15 is this an overestimate or underestimate?

Answers

Answer:

7/187

Step-by-step explanation:

thats it simplified if this helps

Cross multiply to determine whether the fractions are equivalent.

?
4/8=2/4

Answers

Answer:

16 = 16

Step-by-step explanation:

Cross multiplying is when you multiply the numerator and denominator of two fractions.

So, it would be 4 × 4 = 8 × 2 or 16 = 16. This is essentially proving they are equal to one another.

Hope this helps.

Write the equation for the line that passes through ( - 8, - 4 ) and ( -6, - 1 ) in slope-intercept form.

Answers

Step-by-step explanation:

y=(3/2)x +8

that is the answer

The equation of the line is y = (3/2)x + 8 if the line that passes through ( - 8, - 4 ) and ( -6, - 1 ).

What is a straight line?

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

It is given that:

The line that passes through (-8, - 4 ) and ( -6, - 1)

The standard form of the line in slope-intercept form:

y = mx + c

Here m is the slope of the line

c is the y-intercept.

As we know, the ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).

[tex]\rm m =\dfrac{-1-(-4)}{-6-(-8)}[/tex]

m = 3/2

y = (3/2)x + c

Plug x = -8, y = -4

-4 = (3/2)(-8) + c

c = 8

y = (3/2)x + 8

Thus, the equation of the line is y = (3/2)x + 8 if the line that passes through ( - 8, - 4 ) and ( -6, - 1 ).

Learn more about the straight line here:

brainly.com/question/3493733

#SPJ2

The carpet costs $2.59 per square foot, and sales tax is 7.5%. What is the total cost of the carpet? (Round to two decimal places as usual.)

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How much square footage is being bought? The formula for solving would be 2.59X (x being how many square feet you are buying) to get the total. And then divide that by 7.5% so 2.59X / 7.5 and then times it by 100. So 2.58X / 7.5 x 100.

Help “ASAP” 50 points… What is the length of TU? Show all work proportions.

Answers

Answer:

48 units

Step-by-step explanation:

Similar triangles given:

ΔQPR ~ ΔUTV

The ratio of corresponding sides:

TU/PQ = UV/QRTU/60 = (20 + 60)/(60 + 40TU/60 = 80/100TU = 60*4/5 TU = 48

Find the coordinates of point) along the directed segment AB that partitions it so that the ratio of AP to PB is 1:2. NO LINKS OR ASSESSMENT!!!!

Answers

Answer: (1, 3)

Step-by-step explanation:

There are two ways to solve this problem, 1 without the pythagorean theorem, and 1 with it. For the sake of simplicity, I will solve it without the pythagorean theorem.

As is visually evident from the graph, the line segment spans 6 units horizontally, and 3 units vertically. Because the ratio between AP and PB is 1:2, simply divide both the domain and range by 3, to get 2 horizontally, and 1 vertically.

Then, simply go to point A and respectively add and subtract the horizontal and vertical values to get point A(-1, 4) --> P(1,3)

Hope it helps, and let me know if you want me to solve it an alternate way or go more in depth as to the way it is know.

Answer:

P(1, 3)

Step-by-step explanation:

Coordinates of A and B:

A(-1, 4), B(5, 1)

The partition ratio:

AP/PB = 1/2

Coordinates of P are:

x = -1 + 1/3(5 - (-1)) = -1 + 6/3 = 1y = 4 + 1/3(1 - 4) = 4 - 3/3 = 3

Subtract. (2/9)−(−1/3+5/9)

Answers

Answer:

Step-by-step explanation:

the answer is in the above

the answer is 0

A die is rolled twice. What is the probability of showing a 4 on both rolls?

Answers

Answer:

1/36

Step-by-step explanation:

So what you have to do is take all the numbers on the dice. Getting a 4 would be a 1 in 6 (1/6) chance, but then you take the risk of rolling again and trying to get another 4. Nothing changes with the amount of sides, so it would just be another 1/6 change to get the 4. Then, you have to multiply the two changes together. SO 1/6 x 1/6 = 1/36. It is a 1/36 chance to role a 4 on both roles.

The probability of an event is a number between [tex]0[/tex] and [tex]1[/tex]. Hence, the probability of showing a [tex]4[/tex] on both the rolls is [tex]\frac{1}{36}[/tex].

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between [tex]0[/tex] and [tex]1[/tex].

The probability of the first throw [tex]4[/tex] is [tex]\frac{1}{6}[/tex].

And on the second throw is [tex]\frac{1}{6}[/tex].

For both, the throws probability [tex]4[/tex] would be

[tex]\frac{1}{6}[/tex]×[tex]\frac{1}{6}[/tex][tex]=\frac{1}{36}[/tex]

Hence, the probability of showing a [tex]4[/tex] on both the rolls is [tex]\frac{1}{36}[/tex].

Answer:

1/2

Step-by-step explanation:

7/18 is close to 1/2

Kenji and Alec are making paper kites for a kite fight, Kenji's kite is a rectangle and Alec's kite is a

parallelogram that is not a rectangle. Each boy draws

a model of his kite on grid paper. Does Alec's kite use

more paper than Kenji's kite?

Answers

1 1/2 is the least amount of glue needed

subtract it and you get 3/4

Answer:

yes it is

Step-by-step explanation:

heeelllllllllpppppppp meeeeee

Answers

Answer:

Step-by-step explanation:

36-4

Use Pythagorean theorem

Answer:

B=4

Step-by-step explanation:

ANSWER PLEASE !!!!!!

Answers

Answer:

B= 40 degress

Step-by-step explanation:

1x+ 5xc /3xc = 40

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