1 + 1 + 1 in standard form

icang [17]

If you are graphing quadratic equations of the type
ax^2 + bx + c = 0

The equation will look like a "U" if "a" is positive or it will look like an upside-down "U" if "a" is negative

6 0

3 years ago

Does anyone know the answer for the question below.

8090 [49]

Answer: option C

Step-by-step explanation:

The diagram of the triangle is shown in the attached photo. The triangle is a right angle triangle ABC

Assuming the given angle is #,

Recalling the trigonometric ratio,

tan # = opposite / adjacent

If tan # = 4, it means

opposite / adjacent = 4/1

Therefore, opposite = 4 and adjacent = 1

Applying Pythagoras theorem,

Hypotenuse^2 = opposite ^2 + adjacent ^2

Hypotenuse = AC

Opposite = 4

Adjacent = 1

AC^2 = 4^2 + 1^2 = 17

AC = ± √17

To determine cos #, we would apply another trigonometric ratio,

Cos# = adjacent /hypotenuse

Cos# = 1/±√17

Cos # =-1 /√17 or 1/√17

8 0

2 years ago

A rectangle has sides of length 7 in and 13 in. To the nearest degree, what angle does the diagonal make with the longer side?

Gala2k [10]

I think it’s D or maybe just maybe it’s will have to be B

7 0

3 years ago

Solve In standard form y+1=2/3(×+4)

kondor19780726 [428]

Standard form is another way of saying slope-intercept form. The equation you have there is in point-slope form, so we must convert this to slope-intercept form to get our final answer.

In point-slope form (y - k = m(x - h)) k is the y-value, h is the x-value, and m is the slope. All we must do is change your equation's form into standard form, or slope-intercept form which looks like this: (y = mx + b), where m is the slope and b is the y-intercept.

Convert this equation y + 1 = 2/3(x + 4) into standard/slope-intercept form.
y + 1 = 2/3(x + 4)
y + 1 = 2/3x + 2.666 Here we multiplied 2/3 by x and 4 since x + 4 is in parenthesis next to 2/3.
y + 1 - 1 = 2/3x + 2 2/3 - 1 Now we want to get y by itself so the form will look like y = mx + b, so we subtract the 1 from both sides of the equation. (2 2/3 is a mixed fraction that is equal to 2/3*4.)
y = 2/3x + 1 2/3

This is our final answer since it is in the standard, or slope-intercept form. Hope this made sense! If you have any questions please ask.

8 0

2 years ago

A chemist is using 357 milliliters of a solution of acid and water. If 13.2 % of the solution is acid, how many milliliters of a

Vilka [71]

Answer:

The quantity of acid in the solution is 47.1 ml

Step-by-step explanation:

Given as :

The quantity of solution of acid and water = 357 millimeters

The percentage of acid in the solution = 13.2 %

Let the quantity of acid in the solution = x ml

So, According to question

13.2 % of the total quantity of acid in the solution = x

I.e x = 13.2 % × 357

Or, x = $\frac{13.2}{100}$ × 357

Or, x = 0.132 × 357

∴ x = 47.124 millimeters

So , The quantity of acid = 47.1 ml

Hence The quantity of acid in the solution is 47.124 ml Answer

8 0

3 years ago