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Misha Larkins [42]
3 years ago
12

Can someone show me how to get x for both

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
5 0

Answer:

So since the sum of both is 13 because it shows both of the lines connected as a length of lines.

So we add them (14+x)+(x+15) = 13

14+2x+15 = 19+2x = 13

-6=2x

x=

<u>-3</u>

Step-by-step explanation:

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Which ordered peir is a solution of the equation?
omeli [17]

Answer:

ur sti]upid

Step-by-step explanation:

get a bucket and a mop thats a wap

3 0
3 years ago
One operator is holding a laser pointer at a height of 9 feet whose beam is reflected on a horizontal reflecting surface at a po
lutik1710 [3]

Answer:

The height (in feet) at which the laser will impact the wall is 6.75 feet

Step-by-step explanation:

The given parameters are;

The height from which the laser beam operator is holding the laser = 9 feet

The horizontal distance away from the pointer the beam is reflected = 8 feet

Given that we have;

f(x) = \dfrac{9}{8} \times \left | x - 8\right | = y

When x = 8, the point of reflection, the height, f(x) is given as follows;

f(x) = \dfrac{9}{8} \times \left | 8 - 8\right | = 0

When x = 7, the point of reflection, the height, f(x) is given as follows;

f(x) = \dfrac{9}{8} \times \left | 7 - 8\right | = \dfrac{9}{8}

Therefore, given that the point of reflection is at an elevation of 0 relative to the 9 feet of the laser source (pointer), by tan rule, we have;

tan(\theta) = \dfrac{Opposite \ side}{Adjacent \ side} =\dfrac{9}{8} = \dfrac{h}{7}

Where;

h = The height at which the laser meets the wall

h = \dfrac{9 \times  7}{8} =7.875

Given that the wall the laser meets is at the point x with elevation 9/8, the height, y, at which the laser meets the wall is therefore;

y = \dfrac{9 \times  7}{8} - \dfrac{9}{8} = \dfrac{54}{8} = 6.75 \ feet

The height (in feet) at which the laser will impact the wall = 6.75 feet.

7 0
3 years ago
Simplify the following: x^4 - 5x⁴ + x² - 6x² ​
lys-0071 [83]

Answer:

I think − 4 ⁴   −  5 ²  

Step-by-step explanation:

I might be wrong.

3 0
3 years ago
How do you solve for x in this problem?
irina [24]

Answer: you will use the cosine rule

Step-by-step explanation:

x^2=11^2+8^2-2(11)(8)xcos(16)

x^2=185-169.18

x^2=15.8

Take square root

x=3.96 or 4

4 0
3 years ago
Read 2 more answers
1. Find the percent markup.
krek1111 [17]

\mathbb{ \ \underline{ \:  \:  ANSWER  : }}

1. Find the percent markup.

Markup ($) = percent markup (%) x original cost ($)

A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?

The percent markup is: <u> </u><u>90</u><u> </u>%

\mathbb{ \ \underline{ \:  \:  SOLUTION    : }}

FORMULA: Percent of Markup = Markup/Cost x 100

  • = $570/$635 x 100
  • = 0.90 x 100
  • = 90%

7 0
3 years ago
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