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Lera25 [3.4K]
3 years ago
9

Find the value of x in the triangle shown below.

Mathematics
1 answer:
Darya [45]3 years ago
6 0
X = 42 (i’m not sure your giving enough information)
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Why is -9an acceptable answer to the equation x2=81 ?
Arte-miy333 [17]

Answer:

X=9 or x=-9

Step-by-step explanation:

X^2=81

Can be written as

x^2-81=0

Factorize by the property:

a^2-b^2=(a-b)(a+b)

So the expression becomes:

(x-9)(x+9)=0

Therefore, either x-9=0or x+9=0

Then the solutions are x=9 or x=-9

8 0
4 years ago
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A paper clip is dropped from the top of a 144‐ft tower, with an initial velocity of 16 ft/sec. Its position function is s(t) = −
hoa [83]
To calculate the velocity, we use the given expression above which is <span>s(t) = −16t^2 + 144. First, we calculate the time it takes to reach the ground. Then, differentiate the expression and substitute time to the differentiated expression.

</span>s(t) = −16t^2 + 144
0 = -16t^2 + 144
t = 3

s'(t) = v = -32t
v = -32(3)
v = -96 

Note: negative sign signifies that the object is going down
5 0
3 years ago
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mafiozo [28]

Answer:

Side to side

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And streets

3 0
3 years ago
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Identify the vertex the axis of symmetry ,maximum,minimum and range
RoseWind [281]
Vertex = 1,4
range = ( infinity, 4)
maximum
5 0
3 years ago
Someone please help me !!!
djverab [1.8K]

Answer:

a.\ \ \ A=684\ m^2

b.\ \ \ A=130.2 \ km^2

Step-by-step explanation:

a. Area is calculated by summing the areas of the prism's individual surfaces.

#First, calculate the areas of the right-angled surfaces:

Area=2(\frac{1}{2}bh), b=9, h=12\\\\=2\times \frac{1}{2}\times 9\times 12\\\\=108\ m^2

#We then find the areas of the rectangular surfaces:

A=lw\\\\=15\times 16+9\times 16+16\times 12\\\\=576\ m^2

#We sum the areas to find the total surface areas:

A=\sum{Areas_i}\\\\=108+576\\\\=684\ m^2

Hence, the prism's surface area is 684\ m^2

b.Area is calculated by summing the areas of the prism's individual surfaces.

#First, calculate the areas of the right-angled surfaces:

A=2\times \frac{1}{2}bh,\ b=12, h=4.1\\\\=2\times 0.5\times 12\times 4.1\\\\=49.2 \ km^2

#We then find the areas of the rectangular surfaces:

A=lw\\\\=5\times 3+3\times 10+12\times 3\\\\=81\ km^2

#We sum the areas to find the total surface areas:

A=A_r+A_t\\\\=81+49.2\\\\=130.2 \ km^2

Hence, the prism's surface area is  130.2 \ km^2

5 0
3 years ago
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