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WINSTONCH [101]
4 years ago
7

I don't know the answer please help I'm getting graded on this

Mathematics
2 answers:
vladimir1956 [14]4 years ago
8 0
It will be 2.8 inches long
jenyasd209 [6]4 years ago
4 0
Well 1/5 times 14 = 14/5 but it's a mixed number so it's 2 4/5
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What are the co-vertices of the following graph?
Allushta [10]

Answer:

  (±1, -2)

Step-by-step explanation:

The co-vertices are the end points of the minor axis. The center is at (0, -2) and the minor axis is 2 units long, so the co-vertices are ...

  (-1, -2) and (1, -2)

3 0
4 years ago
Need help and NO LINKS!!!<br> Special Right Triangles (Radical Answers)
Nata [24]

Answer:

x = 5\sqrt{2}

Step-by-step explanation:

We know that;

The triangle is isosceles, and the hypotenuse is x, the un-labeled side is 5.

Therefore we can say;

5² + 5² = x²

25 + 25 = x²

50 = x²

\sqrt{50} = x

We can simplify this further;

\sqrt{25} * \sqrt{2} = \sqrt{50}

5\sqrt{2} = \sqrt{50}

Hope this helps!

8 0
3 years ago
Solve for x in the equation x squared + 2 x + 1 = 17.
Whitepunk [10]

Answer:

x = negative 1 plus-or-minus StartRoot 17 EndRoot

Step-by-step explanation:

Given:

x^2+2x+1=17

We need to solve for x.

x^2+2x+1=17 \ \ \ \ equation\ 1

First we will solve L.H.S

Factorizing the equation we get;

x^2+2x+1\\=x^2+x+x+1\\=x(x+1)+1(x+1)\\=(x+1)(x+1)\\=(x+1)^2

Now Things which are equal to the same thing are also equal to one another. Since

x^2+2x+1=17

x^2+2x+1=(x+1)^2

then, according to the law of transitivity,

(x+1)^2=17

Now, applying the Square Root Principle we get:

\sqrt{(x+1)^2} =\sqrt{17}

Now Square root and square gets cancelled.

x+1=\sqrt{17} \\x=-1+\sqrt{17}

Since a square root has two values, one positive and the other negative.

x=-1\±\sqrt{17}

Hence  Final Answer is x=-1\±\sqrt{17}.

5 0
4 years ago
Read 2 more answers
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sesenic [268]
She has to pay $3024 for her car
3 0
3 years ago
Read 2 more answers
Three of the angles of a quadrilateral  are 90 , 156  and 28 . what is the size of the 4th angle?
anyanavicka [17]
The sum of the sides of a quadrilateral is equal to 360º.
x= 4th angle measurement 

We have the following equation:

90+156+28+x=360
x=360-90-156-28
x=86

Answer: the size of the 4th angle would be 86º. 
8 0
3 years ago
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