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3 years ago

Which equation is correct? Someone, please help asap!

Mathematics

1 answer:

andrew11 [14]3 years ago

8 0

In right triangles we use SOH CAH TOA to help find missing angles and sides.

The first tells us secant is opposite over adjacent. That is tangent, so NO

The second is NO as well, since they give us cotangent. Second is NO.

The third is coseceant, which is again opposite over adjacent. Third is NO.

We got three NOs so the last one must be right. And it is: secant is hypotenuse divided by adjacent. Since secant is 1 divided by the cosine, that matches up to soh CAH toa, the CAH part.

Thus, D is the best choice.

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Solve the equation for x<br> 2 (2.0 – 3) = 10

PolarNik [594]

Step-by-step explanation:

this is your answer...........

7 0

3 years ago

A hemispherical tank is filled with water and has a diameter of 15 feet. If water weighs 62.4 pounds per cubic foot, what is the

KATRIN_1 [288]

Answer:

55135 lbs (rounded to the nearest pound)

Step-by-step explanation:

diameter of tank = 15 ft

Radius = 15/2 =7.5

volume of hemisphere = 2/3 ×π× 7.5³=883.5729

total weight of water = 62.4 × 883.57 = 55134.768

55134.768 rounded to the nearest pound is 55135 lb

♥ Hope this helped ♥

4 0

3 years ago

HELPPPP!!!!!!!!!!!!!!!! pls hurry , need correct answers 3

scZoUnD [109]

Answer:

"A value that is substituted in for the variable in a function in order to generate an output value" is gonna be known as an input.

"A group of two numbers written in the form (x, y) where the x value represents a horizontal position and the y value represents a vertical position" is known as an ordered pair.

"A value generated by a function when an input value is substituted into the function and evaluated" is known as an output.

I hope I have helped with this problem. Have a good day.

4 0

2 years ago

Read 2 more answers

write an equation in slope-intercept form for the line parallel to y=-7x-9 that passes through the point (4,-9)

uranmaximum [27]

Answer:

7x = y + 37

Step-by-step explanation:

y = 7x - 9

Differentiating y with respect to x, we have as follows:

dy/dx = m = 7 ( where m is the slope)

Using the formula y - y1 = m(x - x1) to obtain the equation of line passing through point (4.-9)

y + 9 = 7(x - 4)

y + 9 = 7x - 28

∴ 7x = y + 37

3 0

4 years ago

Maja manages a community garden which has rectangular garden plots that are 15 ft by 10 ft. She wants to add a uniform path arou

tiny-mole [99]

The path should be 6.38 feet wide

Let x be the width of the path.

Since the rectangular plot has an area with dimensions 15 ft by 10 ft, we add x to each dimension to give the dimensions of the rectangular plot plus uniform path.

So, the dimensions are 15 + x by 10 + x respectively.

So, the area of the rectangular plot plus uniform path is A

A = (15 + x)(10 + x)

Since the combined area of the path is 350 square feet, A = 350 ft²

So, (15 + x)(10 + x) = 350

Expanding the brackets, we have

150 + 15x + 10x + x² = 350

x² + 25x + 150 = 350

x² + 25x + 150 - 350 = 0

x² + 25x - 200 = 0

Using the quadratic formula, we find x, the width of the path

So,

$x = \frac{-25 +/-\sqrt{25^{2} - 4X1 X (-200)} }{2 X1 } \\x = \frac{-25 +/-\sqrt{625 + 800)} }{2}\\x = \frac{-25 +/-\sqrt{1425} }{2}\\x = \frac{-25 +/-37.75 }{2}\\x = \frac{-25 + 37.75 }{2} or x = \frac{-25 - 37.75 }{2}\\x = \frac{12.75 }{2} or x = \frac{-62.75 }{2}\\x = 6.375 or x = -31.375$

Since x cannot be negative, we choose the positive answer.

x = 6.375 ft

x ≅ 6.38 ft

So, the path should be 6.38 feet wide

Learn more about width of a path here:

brainly.com/question/15382035

5 0

3 years ago

Which equation is correct? Someone,​ please help asap!

Which equation is correct? Someone, please help asap!