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Roman55 [17]
3 years ago
13

Find the value of x rounded to the nearest hundredth.

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

x=6.93\ units

Step-by-step explanation:

To better understand the problem see that attached figure with letters

we know that

In the right triangle BCD

cos(C)=4/x ----> equation A

we know that

In the right triangle ABC

cos(C)=x/12 -----> equation B

equate equation A and equation B

\frac{4}{x}=\frac{x}{12}\\ \\x^{2}=48\\ \\x=6.93\ units

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There’s a picture so I don’t have to type out the question
dalvyx [7]

Answer:

The correct option is: Both -5 and 1 are true solutions

Step-by-step explanation:

The given expression is:

√c^2+2c-4=√1-2c

By squaring both sides we get:

(√c^2+2c-4)^2=(√1-2c)^2

c^2+2c-4=1-2c

Move all the values to the L.H.S

c^2+2c-4-1+2c=0

c^2+4c-5=0

Now we will perform factorization:

c^2+5c-c-5=0

c(c+5)-1 (c+5)=0

(c+5)(c-1)=0

c+5 = 0   , c-1=0

c= 0-5    , c=0+1

c= -5 , c=1

Thus the correct option is Both -5 and 1 are true solutions....

6 0
3 years ago
Given the fuction h (x) = x^2 + 2x -3, find the value of h (2) - h (-4)
Anettt [7]

Answer:-

0

Step-by-step explanation:

h(x) = x^2 + 2x -3

x = 2

h(2) = 2^2 + 2(2) - 3

h(2) = 4 + 4 - 3

h(2) = 8-3

h(2) = 5

x = - 4

h(-4) = (-4)^2 + 2(-4) - 3

h(-4) = 16 - 8 - 3

h(-4) = 16 - 11

h(-4) = 5

========

h(2) - h(-4)

5 - 5

0

5 0
3 years ago
What is the domain of this function?​
Anika [276]

Answer:

B

Step-by-step explanation:

Domain is basically x. The left side is connecting with the right side (y).

this is why the domain is B

Hope this helps!

7 0
3 years ago
Read 2 more answers
Draw a quick picture to find the sum or difference 2.46 + 0.78
katrin [286]
To now the difference you just have to subtract and will give you 1.68
5 0
3 years ago
Read 2 more answers
Which of the following expressions represents the product below?
Tresset [83]

Answer:

(4 i+ 3)(5 - 2i)

= -   {8i}^{2} +  20i + 15 - 6i

= -   {8i}^{2} +  14i + 15

6 0
4 years ago
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