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a_sh-v [17]
3 years ago
13

Please help i don’t know how to do this

Mathematics
1 answer:
laila [671]3 years ago
4 0

Answer:

1.) 25

2.)81

3.)49

Step-by-step explanation:

(I recommend getting a Texas instruments TI-84 you can just plug in the numbers and it does it for you :)

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A circle has its centre at (0,0) and passes through the point (-9,40).
BabaBlast [244]

Step-by-step explanation:

Radius of a cicke is calculated by 2 pi r

Equation is found by y=mx+C

3 0
1 year ago
How do you Graph y-3=1/3(x+1)
jekas [21]

Answer:

You can find the point of intersection of the line with the y-axis and the  the point of intersection of the line with the x-axis. See the graph attached.

Step-by-step explanation:

Find the intersection with the y-axis. Substitute x=0 into the equation and solve for y:

y-3=\frac{1}{3}(x+1)\\\\y-3=\frac{1}{3}(0+1)\\\\y-3=\frac{1}{3}(1)\\y=\frac{1}{3}+3\\\\y=\frac{10}{3}

y≈3.33

Find the intersection with the x-axis. Substitute y=0 into the equation and solve for x:

y-3=\frac{1}{3}(x+1)

0-3=\frac{1}{3}(x+1)\\(-3)(3)=x+1\\-9-1=x\\x=-10

Now, you know that the line passes through the point (0,3.33) and (-10,0). Now you can graph the function. (Observe the graph attached)

6 0
3 years ago
Planes A and B intersect. Vertical plane B intersections horizontal plane A at line k. Line k contains points Y and Z. Line m in
maxonik [38]

Answer:

It's point W!!!

Step-by-step explanation:

Have a great day :)

5 0
3 years ago
Work out the sum of
Sladkaya [172]

Answer: 1 and 3/70

Explanation: Find the least common denominator and then combine like terms. The LCM is 70.

8 0
3 years ago
Quick help please!
pashok25 [27]
Congruent triangles are all the same. Given that the faces of a triangular pyramid are congruent then all its faces are the same. It is also good to note that this pyramid has 4 faces. Given that the surface area of the pyramid is 372m^2, the area of one face will be:
area=(total area)/(number of faces)
=372/4
=93 m^2

4 0
3 years ago
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