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azamat
4 years ago
10

tessa is on the track team. for practise and exersise, she runs 2.25 miles each day. at the end of 14 days, how many total miles

will tessa have run
Mathematics
1 answer:
astra-53 [7]4 years ago
5 0
31.5 miles

If she runs 2.25 miles/day and she runs 14 days, you multiply 14*2.25
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Help me pls i need to graduatE
uranmaximum [27]

Answer:

The answer is option D.

<h2>LJ = 3.5</h2>

Step-by-step explanation:

<u>To find LJ we use the sine rule</u>

From the picture

LK / sin J = LJ / sin K

LK = 9

J = 89°

K = 23°

So now LJ is

9 / sin 89° = LJ / sin 23°

<u>Make LJ the subject</u>

That's

LJ = 9 sin 23° / sin 89°

LJ = 3.51

The final answer is

<h3>LJ = 3.5</h3>

Hope this helps you.

3 0
3 years ago
Using the quadratic formula to solve 11x^2-4x=1, what are the values of X?
Rashid [163]
The correct answers for x would be \frac{2 +/-  \sqrt{15} }{11}.

In order to find this, we must first get the equation to equal 0. In order to do that, subtract 1 from each side to get the following. 

11x^{2} - 4x - 1 = 0

Knowing this we can now use the quadratic equation using a = 11, b = -4 and c = -1. The quadratic equation is below. 

\frac{-b +/-  \sqrt{ b^{2} - 4ac} }{2a}

Now we can plug the values into the equation to solve. 

\frac{4 +/- \sqrt{ -4^{2} - 4(11)(-1)} }{2(11)}

Then simplify using the order of operations. 

 \frac{2 +/- \sqrt{15} }{11}.
5 0
4 years ago
Help what’s the answer
Keith_Richards [23]

Answer: A. Vertical angles

Step-by-step explanation:

They are vertically opposite angles.

Correct me if I am incorrect.

7 0
3 years ago
Use the rule (x,y) (3x,2y) to find the image for the preimage defined by the given points.
Elina [12.6K]

Answer: The points of the images are  (9,10), (15,6), (6,4)  and the image is not a rigid motion because the shape changes in side.

Step-by-step explanation:

Since it gives you the scale factor then find they coordinates by multiplying the coordinates by the scare factor.

A(3,5) → (3*3,5*2) → (9,10)

B( 5,3) → (5*3, 3*2) → (15,6)

C ( 2,3)→ (2*3, 2*2)→ ( 6,4)

4 0
4 years ago
What is the volume of a cylinder whose radius is 5 and height is 9
liraira [26]

Answer:

225π

Step-by-step explanation:

substitute V=πr^2h

V=π(5)^2(9)

Simplify.

225π

7 0
3 years ago
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