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kumpel [21]
3 years ago
9

How many solutions does this equation have?

Mathematics
2 answers:
user100 [1]3 years ago
6 0
One solution

Hgyugyhvd
Pavel [41]3 years ago
4 0

Answer:

one solution..........

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Please help me with this problem and explain how to solve these
Viefleur [7K]

Option A:

The simplest radical form of x is 3\sqrt{15}.

Solution:

Hypotenuse = 16 in

Two sides are 11 in and x.

To find the value of x:

Pythagoras theorem:

In a right angle triangle, the hypotenuse is equal to the sum of the other two sides.

11^2+x^2=16^2

121+x^2=256

Subtract 121 from both sides of the equation.

121+x^2-121=256-121

x^2=135

Taking square root on both sides of the equation.

\sqrt {x^2}=\sqrt {135}

x=3\sqrt {15}

Hence option A is the correct answer.

Hence the simplest radical form of x is 3\sqrt{15}.

4 0
3 years ago
Kayson is looking at two buildings, building A and building B, at an angle of elevation of 40' Building Als 120 feet away, and b
-BARSIC- [3]

Answer:

A. Building A, it is around 100.69 feet taller than building B.

Step-by-step explanation:

Since building A is 120 feet away at and elevation of 40^{0}, then:

Tan 40^{0} = \frac{x}{120}

Where x is the height of the building at the horizontal plane.

x = Tan  40^{0} × 120

   = 100.692 feet

For building B at the same elevation,

Tan  40^{0} = \frac{x}{60}

 x = Tan  40^{0} × 60

    = 50.346 feet

Since the angle of elevation are the same, building A is around 100.69 feet taller than building B.

5 0
3 years ago
Read 2 more answers
How can you get equation b from equation A. 3(x+2)=18 B. X+2=18
Rzqust [24]

Answer:

We start with the equation:

A: 3*(x + 2) = 18

And we want to construct equation B:

B: X + 2 = 18

where I suppose that X is different than x.

Because in both equations the right side is the same thing, then the left side also should be the same thing, this means that:

3*(x + 2) = X + 2

Now we can isolate the variable x.

(x + 2) = (X + 2)/3

x = (X + 2)/3 - 2

Then we need to replace x by  (X + 2)/3 - 2 in equation A, and we will get equation B.

Let's do it:

A: 3*(x + 2) = 18

Now we can replace x by =  (X + 2)/3 - 2

3*( (X + 2)/3 - 2 + 2) = 18

3*(  (X + 2)/3 ) = 18

3*(X + 2)/3 = 18

(X + 2) = 18

Which is equation B.

3 0
3 years ago
A landscaper is planting a row of 10 shrubs along the walkway shown below. There must be one shrub at the very beginning and one
rewona [7]

Answer:

9d = 36

Step-by-step explanation:

See attachment for complete question

Length = 36ft

n = 10

From the question, we understand that one shrub must be at both ends.

Taking the first as a point of reference, we're left with:

(n - 1) * distance = 36

Substitute 10 for n and d for distance

(10 - 1) * d = 36

9 * d = 36

9d = 36

Hence:

9d = 36 answers the question

4 0
4 years ago
5. Compare 1/7 and 13/90
Olin [163]

Answer:

13/90 > 1/7 or 1/7 < 7/90

Step-by-step explanation:

to compare two rational expression you should make the denominator equal

1/7 ➡ ×90 = 90/630

13/90 ➡ ×7 = 91/630

7 0
3 years ago
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