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mylen [45]
4 years ago
11

Us foil to figure out (x−7)(x−7)

Mathematics
1 answer:
VladimirAG [237]4 years ago
5 0

Answer:

x^2-14x+49

Step-by-step explanation:(x−7)(x−7)

=(x+−7)(x+−7)

=(x)(x)+(x)(−7)+(−7)(x)+(−7)(−7)

=x2−7x−7x+49

=x2−14x+49

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You enter a relay race. To start, you must run 20 yards to Checkpoint A. You then must turn and run 12 yards to Checkpoint B. La
Anarel [89]

Distance to checkpoint A from starting line = 20 yards.

Then from A to B distance = 12 yards.

Let us take starting point C.

So, it would make a right triangle.

We have AB = 12, AC = 20, we need to find BC, that is Hypotenuse of the right triangle.

According to Pythagoras theorem:

BC^2 = AB^2+AC^2

BC^2 = 12^2+20^2

BC^2 = 144 +400 = 544

BC= \sqrt{544}

BC = 23.32.

<h3>Therefore,  23.32 yards is the distance from Checkpoint B to the starting line.</h3>
7 0
3 years ago
Read 2 more answers
Suppose that f(x)=x2 and g(x) =4/5x2. Which statement best compares the graph of f(x)?
Roman55 [17]

Answer:

See below.

Step-by-step explanation:

Are f(x)=x2 and g(x) =4/5x2 correctly written?

This answer assumes they are supposed to be:

f(x)=x^2 and g(x) = (4/5)x^2

If these revisions are correct, g(x) would produce values that are (4/5) of f(x).

See attached graph.

I don't see any of the options for "best statement."

6 0
2 years ago
A machinist uses a special tool to measure the diameter of a small pipe. The measurement tool reads 0.276 inch. What is this mea
Oliga [24]
I believe it should be .3 because its rounded to the nearest tenth
4 0
3 years ago
Zach spent 2/3 hour reading on Friday and 1 1/3 hours reading on Saturday. how much more time did he read on Saturday than on Fr
amid [387]
11/3 - 2/3 = 9/3 = 3 so he spent 3 more hours reading on saturday than on friday


Hope this helps!
6 0
3 years ago
I need help! I don't really understand.... Can someone help for these 2 questions?? Part A and B??
vfiekz [6]

Answer:

A. 6x + 4

B. 22 cm

Step-by-step explanation:

The perimeter of the triangle is equal to the sum of all the side lengths, which is (2x+3) + (x+1) + (3x), or 6x + 4.

When x = 3cm, the perimeter is 6(3) + 4, which is 22 cm.

8 0
3 years ago
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