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TEA [102]
4 years ago
13

Hi what is the anwer for this

Mathematics
1 answer:
IRISSAK [1]4 years ago
4 0

Answer:

2.5cm^2

Step-by-step explanation:

so diameter is basically radius*2...to find radius(since area of circle is pi*r^2 we need to divide diameter by 2)

so 1.8/2=0.9

now,

pi*0.9^2

pi*0.81

2.5 cm^2

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Solve for x, and JUSTIFY your answer.
arsen [322]

Answer:

84

Step-by-step explanation:

I don't really know how to explain it but I'll try my best

Visualize line AB extending past point A (like it does at point B)

You'll see that 180 ( line AB ) minus 129 is 51

Angle 51 is vertical to  the other angle inside the triangle that is unnamed.

Now you have 2 angles.

180-45-51=84

5 0
3 years ago
Evaluate without a calculator:<br> CSC -120°
natali 33 [55]
I didn’t use a calculator and I got 1.154
7 0
3 years ago
Read 2 more answers
The sum of three consecutive odd integers is 18 less than five times the middle number. Find the three integers.
Vesnalui [34]
Let us assume the first odd integer to be = x
Then
The consecutive middle odd integer = x + 2
The third consecutive odd integer = x + 4
So we can now write the equation as
x + x + 2 + x + 4 = 5(x + 2) - 18
3x + 6 = 5x + 10 - 18
3x + 6 = 5x - 8
3x - 5x = - 8 - 6
- 2x = - 14
2x = 14
x = 14/2
   = 7
So the first odd integer is 7
The second consecutive odd integer = (x + 2)
                                                            = (7 + 2)
                                                            = 9
The third consecutive odd integer = (x + 4)
                                                       = 7 + 4)
                                                        = 11
So the three consecutive odd integers are 7, 9, 11.
6 0
3 years ago
In the equation , 2(4x + 3) - 5x = 1, what is the first step that should be taken to solve for x?
Tems11 [23]
Distribute the 2 among the terms inside the parentheses. in other words just multiply the 2 with the numbers inside the parentheses.
5 0
3 years ago
Read 2 more answers
Which graph represents the function f(x)=4⋅3x ?<br> Please help!!!
S_A_V [24]

Answer:

Option D is correct.

Step-by-step explanation:

An exponential function is in the form of y =ab^x where a is the initial value and b≠ 0 , b >1 .

Given: The function f(x) = y = 4 \cdot 3^x           ......[1]

The domain is all real numbers and the range is y > 0.

y-intercept defined as the graph crosses the y-axis.

Substitute the value of x= 0 in [1] to solve for y;

y = 4 \cdot 3^0  = 4

y-intercept = (0, 4)

End behavior:

when b =3 >1

then;

as x \rightarrow \infty , f(x)\rightarrow \infty

as  x \rightarrow -\infty , f(x)\rightarrow 0

therefore, the only graph which represents the function y = 4 \cdot 3^x   is Option D



6 0
3 years ago
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