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Zarrin [17]
4 years ago
6

Find the value of this expression if x = 3.

Mathematics
2 answers:
eduard4 years ago
6 0

Answer:

12.

Step-by-step explanation:

x = 3; x^2 + 3.

(3)^2 + 3 = 3 * 3 + 3 = 9 + 3 = 12

Hope this helps!

tensa zangetsu [6.8K]4 years ago
3 0

Answer:

9

Step-by-step explanation:

x2 + 3

(3)2 + 3

6 + 3

9

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The base of the isosceles triangle is five times the height<br><br> Find the exact value of cot ø
Vika [28.1K]

Answer:

The exact value of cot(∅) is 2.5

Step-by-step explanation:

The picture of the question in the attached figure

we know that

An isosceles triangle has two equal sides and two equal interior angles

In his problem

AB=BC

m\angle BAC=m\angle ACB=\phi^o

In the right triangle ABD

cot(\phi)=\frac{AD}{BD} ---> adjacent side angle ∅ divided by the opposite side angle ∅

we have

The base of the isosceles triangle is five times the height

so

b=5h

AD=\frac{b}{2}=\frac{5h}{2}\ units

BD=h\ units

substitute

cot(\phi)=\frac{(5h/2)}{h}=2.5

8 0
3 years ago
six flags charges a fee to enter the amusement park and then $2 per ride that you go on. If the total cost is $39 when you ride
Mars2501 [29]
Uh would it be 7 x 2 + x = 39 Im not that good at math but I think thats its
4 0
4 years ago
Read 2 more answers
The temperature dropped 18°F in 3 hours. The final temperature is -7°F. What was the
swat32

Answer:

11 F

Step-by-step explanation:

because 18 + -7 = 11

6 0
3 years ago
What is the LCD of thw fractions 1/3 and 11/15?
PSYCHO15rus [73]
Least common denominator of those two fractions is 15

Because 15 cant go any less

3 × 1 = 3                  15 × 1 = 15
3 × 2 = 6
3 × 3 = 9 
3 × 4 = 12
3 × 5 = 15
8 0
3 years ago
The equation below describes a circle. what are the coordinates of the center of the circle?
k0ka [10]
Since, the equation involved is a circle let us clearly write the equation first:
(x+5)^2+(y+2)^2=21^2

From the standard equation of the circle:
(x-h)^2+(y-k)^2=r^2
(h,k)=(x,y)

So from the equation given above, our x would be -5, and our y is equivalent to -2.
So the center of our circle is located at the point (-5,-2)
7 0
3 years ago
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