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anastassius [24]
3 years ago
9

What is the solution to the equation 9k = 40.5? k= 4 k= 4.5 k= 5

Mathematics
2 answers:
timofeeve [1]3 years ago
4 0

Answer: The answer k=4.5

Scilla [17]3 years ago
3 0

Answer:

k=4.5

Step-by-step explanation:

40.5/9

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What is an equation of the line that passes through the point (6,0) and is perpendicular to the line 3x+4y=20
My name is Ann [436]

Answer:

The equation of the line is y = 4/3x - 8

Step-by-step explanation:

In order to find this, we first have to find the slope of the original line. We do this by solving for y.

3x + 4y = 20

4y = -3x + 20

y = -3/4x + 5

Now that we have the slope of -3/4 we can find the perpendicular slope. The perpendicular slope of any time is the opposite and reciprocal slope. So we flip -3/4 to get -4/3 and then we make it positive (4/3). Now that we have our new slope, we can input it along with the point into point-slope form to find the equation.

y - y1 = m(x - x1)

y - 0 = 4/3(x - 6)

y = 4/3x - 8

7 0
3 years ago
A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 4 miles to the roa
scoray [572]
L = 4D + 54 <== ur equation

the crew worked for 31 days...so sub in 31 for D

L = 4(31) + 54
L = 124 + 54
L = 178 miles <==
5 0
3 years ago
Can a triangle have sides of lengths 9,17,15? Show why or why not.
Elden [556K]

Answer:

A triangle has 3 sides: a, b, c satisfying inequalities below:

=> a + b > c > |a - b|

=> b + c > a > |b - c|

=> c + a > b > |c - a|

9, 15, 17 satisfy the inequalities above (you can check it easily).

Hope this helps!

:)

6 0
3 years ago
I need help with this. I've tried to type out this problem, but it comes out wrong, so I uploaded a picture:
tatuchka [14]

answer: 6.4

work:

Solve the problem.

Let's start by solving the numerator,

(5 + 3)² <em>step one: add 5 + 3 </em>

(8)² <em>step two: simplify 8²</em>

64

now, let's simplify our denominator

1 + 2⁵ - 23 <em>step one: simplify 2⁵.</em>

1 + 32 - 23 <em>step two: add 1 + 32.</em>

33 - 23 <em>step three: subtract 33 - 23</em>

10.

now, put the numerator back over the denominator.

64/10

let's simplify by dividing, we get 6.4.

<em>i hope this helps, and have a great day! don't hesitate to ask if you need more help with this specific question! ♥ - eviezoom </em>


4 0
3 years ago
Math help! Is this correct? If not what’s the real answer
miv72 [106K]

Answer:

It's correct

Step-by-step explanation:

Good job! arcsin(0.9659) is indeed 75 degrees

3 0
3 years ago
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