Please help I am confued

The value of x in the given diagram is 7cm.

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.

According to the given question.

We have a diagram in which we have two right angled triangles.

Now, in the upper right angled triangle

[tex]tan50 = \frac{0pposite side}{5}[/tex]

⇒ 1.19 = 0pposite side/ 5

⇒ opposite side = 1.19 × 5

⇒ opposite side = 1.2 × 5

⇒ opposite side = 6cm

Now, the opposite side w.r.t angle 50  degrees in the upper right angle triangle is a adjacent side w.r.t to angle 38 degrees in the lower right angle triangle.

So, in the lower right angle triangle.

[tex]tan38 = \frac{x}{adjacent side}[/tex]

⇒[tex]0.78 = \frac{x}{6}[/tex]

⇒ x = 0.78 × 6

⇒ x = 4.68

⇒ x = 7cm

Hence, the value of x in the given diagram is 7cm.

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Answer:

=x

Step-by-step explanation:

x/y·y

=xy/y

=x

Hope this helps

PLS BRAINLIEST

Answer:

a) y = k/x

7 = k/9

b) y = 3

Step-by-step explanation:

From the question, we are told that:

y is inversely proportional to x.

Mathematically:

y ∝ 1/x

y = k × 1/x

y = k/x

k = Constant of Proportionality

a) work out an equation connecting y and x

To find this Equation,

y = k/x

when y=7 x=9

Hence:

7 = k/9

b) work out the value of y when x=21

We find the value of k first

7 = k/9

k = 7 × 9

k = 63

Hence, the value of y when x=21

y = k/x

k = 63, x = 21

y = 63/21

y = 3

Answer:

light, which normally travels the 240,000 miles from the Moon to Earth in less than two seconds, has been slowed to the speed of a minivan in rush-hour traffic — 38 miles an hour.

An entirely new state of matter, first observed four years ago, has made this possible. When atoms become packed super-closely together at super-low temperatures and super-high vacuum, they lose their identity as individual particles and act like a single super-

atom with characteristics similar to a laser.

Step-by-step explanation:

Answer:

4.34%

Step-by-step explanation:

Given that,

The measured length of a pen = 22 cm

Actual length of the pen = 23 cm

We need to find the percent error for Diego's measurement. It can be calculated as follows :

[tex]\%=\dfrac{23-22}{23}\times 100\\\\=4.34\%[/tex]

So, the required percentage is 4.34%.

Answer:

True

Step-by-step explanation:

Answer:

D) 2x² + x - 10

Step-by-step explanation:

First, distribute the negative sign to all terms within the second parenthesis:

- (4x - x² + 6) = -4x + x² - 6

Next, combine like terms:

5x + x² - 4 - 4x + x² - 6

(x² + x²) + (5x - 4x) + (-4 - 6)

2x² + x - 10

2x² + x - 10 , or D) is your answer.

Answer:

2x^2+x-10 (the pink/red one)

Step-by-step explanation:

(5x+x^2-4)-(4x-x^2+6)

5x+x^2-4-4x+x^2-6

2x^2+x-10

Answer:

Step-by-step explanation:

Since they are similar we can say

?/15=6/3

?=15(6)/3

?=30

Answer: 7 7/8 hours long

Step-by-step explanation:

April worked 1 1/2 times as long as Carl did. 1 1/2 can be rewritten as 3/2. Number of Hours April worked on math project 3/2 times the Number of Hours Carl worked on Math project. Which Carl worked 5 1/4 hours long, which can be rewritten as 21/4

Answer:

30 degrees

Step-by-step explanation:

sin(30 degrees) = 9/18 = 1/2

law...

Answer:

B

Step-by-step explanation:

Answer:

x represents hours of babysitting

y represents hours of music lesson

hours on babysitting: 11

hours on music lessons: 7

Step-by-step explanation:

x+y=18

5x+12y=139

-5(x+y=18)

=-5x-5y=-90

(5x+12y=139) + (-5x-5y=-90)

7y=49

y=7

x+7=18

x=11

Answer:

53

Step-by-step explanation:

[tex]8 - \frac{m}{n} + {p}^{2} \\ \\ (plug \: m = 8, \: \: n = 2, \: \: p = 7) \\ \\ = 8 - \frac{8}{2} + {7}^{2} \\ \\ = 8 - 4 + 49 \\ \\ = 4 + 49 \\ \\ = 53[/tex]

Answer:53

Step-by-step explanation:

substitute the letters for the numbers then use pemdas

Answer:

-7

Step-by-step explanation:

y = mx + b is slope-intercept form and m is the slope. In this case m = -7 so the slope is -7.

Answer:

123,456,789x123,456,789= (123,456,789)^2= 152415788*10^16

can i have brainliest please

Answer:

49w2+w+53

49 is a perfect square it'll be 7

Step-by-step explanation:

An expression has a leading coefficient that is a perfect square is 49w²+4+53.

A perfect square is a positive integer that is obtained by multiplying an integer by itself. In simple words, we can say that perfect squares are numbers that are the products of integers by themselves.

The term with the highest degree i.e., the term with the largest power of the variable is the leading term. The leading coefficient is the leading term's coefficient.

In the polynomial 49w²+4+53

The highest degree is with the term 49w² is 2, and its coefficient is 49.

49=7×7=7²

So, 49 is the perfect square.

Therefore, option A is the correct answer.

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Step-by-step explanation:

it's 9,776 the answer the problem is 9,776

Answer:

54 + 25 = $79

Step-by-step explanation:

I think??

Answer:

If you add 54 and 25 together you will get $79

Step-by-step explanation:

because 4+5= 9 and 5+2=7  so 79.

2hour because raymond is useles

Step-by-step explanation:

Answer:

72 minutes or 1 hour and 12 minutes

Step-by-step explanation:

in one hour Raymond would have done 1/3 of a job

in one hour Robert would have done 1/2 of a job

so in one hour together, they would have done 1/2+1/3 = 5/6 of a job

5/6 job = 1 hr

1/6 job = 12 mins

6/6 job = 72 minutes

Answer:

B. 6

Step-by-step explanation:

There is one possible root for every degree, so, for example, with a third-degree polynomial function, there would be 3 possible unique roots.

Answer: 6

Step-by-step explanation:

sixth-degree only has like six numbers

Answer:

Slope: 2  Y intercept: 9

Step-by-step explanation:

Answer:

fgfthvjjuuytrf46477777

Answer:

a rotation of 180° about point (0.5, -0.5) followed by a dilation of 0.5

Step-by-step explanation:

Answer:

an increase of around 30.76%

Step-by-step explanation:

24 divided by 78 = .307692307....

Answer:

225%

Step-by-step explanation:

78- 24= 54

54/24=2.25

2.25x100=225

Answer:

8 inches = 1/8 of the real height of the book shelf

Multiply 8 by 8 because the question shows 1/8 of the book shelf

8x8=64

The book shelf is 64 inches.

or 5 feet and 4 inches.

Answer:

it would b 64 in. or 5 ft. 4 inches

Step-by-step explanation:

8x8 = 64

Answer:

25

Step-by-step explanation:

Given,

Measurement of <1 = x + 10

Measurement of <2 = 4x + 5

Also, said in the question that both these angles are complementary.

Therefore, by the problem,

<1 + <2 = 90°

=> x + 10 + 4x + 5 = 90

=> x + 4x + 10 + 5 = 90

=> 5x + 15 = 90

=> 5x = 90 - 15 = 75

[tex] = > x = \frac{75}{5} [/tex]

=> x = 15

Now, we have got the value of x so,

Measurement of <1 is

<1 = x + 10 = 15 + 10 = 25 (Ans)