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3 years ago

PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!

Mathematics

1 answer:

Alex777 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

Triangle VWX is a right angle triangle.

From the given right angle triangle,

VX represents the hypotenuse of the right angle triangle.

With m∠X as the reference angle,

WX represents the adjacent side of the right angle triangle.

VW represents the opposite side of the right angle triangle.

To determine m∠X, we would apply

the tangent trigonometric ratio. It is expressed as

Tan θ = opposite side/adjacent side. Therefore,

Tan X = 2/1 = 1

m∠X = Tan^-1(1)

m∠X = 45°

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3 years ago

Read 2 more answers

Solve for x Write both solutions, seperated by a comma 4x^2+5x+1=0

stiv31 [10]

Answer:

-1/4 , -1

Step-by-step explanation:

I solved it using Factorization method and Quadratic Equation .

Factorization Method

$4x^2+5x+1=0\\Write +5x- as- a -difference(write+5x-using- two- numbers -in-which-their-sum-is ; 5-and-their-product-is ; 4)\\4x^{2} +4x+1x+1=0\\Factorize-out-common-terms\\4x(x+1)+1(x+1)=0\\Factor-out-(x+1)\\(4x+1)(x+1)=0\\4x+1 =0 \\x+1=0\\4x=0-1\\x =0-1\\4x =-1\\x =-1\\4x=-\frac{1}{4} \\\\Answer = -1/4 , -1$

Quadratic Equation

$4x^2+5x+1=0\\a = 4\\b =5\\c = 1\\\\x =\frac{-b\±\sqrt{b^2 -4ac} }{2a} \\\\x = \frac{-(5)\±\sqrt{(5)^2-4(4)(1)} }{2(4)} \\\\x = \frac{-5\±\sqrt{25-16} }{8} \\\\x = \frac{-5\±\sqrt{9} }{8} \\\\x = \frac{-5\±3}{8} \\\\x =\frac{-5+3}{8} \\\\x = \frac{-5-3}{8} \\\\x = \frac{-2}{8} \\\\x = \frac{-8}{8} \\\\x = -\frac{1}{4} \\x=-1$

5 0

3 years ago

Can someone help me with this?

KATRIN_1 [288]

To find the equation of the line in slope-intercept form, y = mx + b, we can start by solving for the slope. The slope compares the vertical change (the rise) to the horizontal change (the run) when moving from one fixed point to another along the line.

The slope formula is:

m = (y2 - y1)/(x2 - x1)

We need to select 2 pairs of points from your given table.

Let (x1, y1) = (1, 8)

(x2, y2) = (2, 10)

Plug these values into the formula:

m = (y2 - y1)/(x2 - x1)

m = (10 — 8)/(2 — 1)

m = 2/1 or 2.

Therefore, the slope of the line is 2.

Next, we need to figure out what the y-intercept of the line is. The y-intercept is the point where the line crosses the y-axis. The y-intercept is also the value of y when x = 0.

Looking at your given table, you have an ordered pair, (0, 6) — this is the y-intercept. The y-coordinate (6) is the value of “b” in the slope-intercept form, y = mx + b.

Now that we have our slope (m) = 2, and y-intercept (b) = 6, we can write our equation as follows:

y = 2x + 6

Please mark my answers as the Brainilest if you find my explanations helpful :)

5 0

3 years ago

Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence. 2, 4, 8, 16

Finger [1]

NOT geometric sequence. The NEGATIVE 32 breaks any initial ratio which occurs between the first four terms.

7 0

4 years ago

An item costs $390 before tax, and the sales tax is $35.10. Find the sales tax rate. Write your answer as a percentage.

DanielleElmas [232]

Answer:

Use this pencentage change formula:

New - Old

---------------- x 100

Old

Step-by-step explanation:

390 + 35.10 = 425.1 (New value)

So apply this to the formula:

425.1 - 390

--------------- x 100

390

Which is = 9%

Hope it helps. Cheers! :)

7 0

3 years ago