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3 years ago

" Which words name the shape?

Mathematics

2 answers:

VLD [36.1K]3 years ago

7 0

Answer:

D. Rectangle only

Step-by-step explanation:

It's only a rectangle. It can not be a parallelogram neither a rhombus nor a square

gtnhenbr [62]3 years ago

4 0

Answer:

rectangle this is because the opposite sides are equal and are also parallel

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Use what you know about the angle sum theorem for triangles and your algebra skills to solve for x and find the measure of all t

melomori [17]

Answer:

2x° = 45°, 3x° = 67.5°

Step-by-step explanation:

Sum of angles in a triangle = 180°

2x+3x+3x=180°

8x=180°

x=22.5°

2x=22.5°x2=45°

3x=22.5°x3=67.5°

8 0

2 years ago

The ratio of teachers needs to be 1:30. If there were 120 students, how many teachers would be needed?

mezya [45]

Answer:

4:120

Step-by-step explanation:

for 120 student they would be 4 teacher needed per 30 student

4:120

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3 years ago

Jori has 7 boxes of books, with each box holding the same number of books. He has 126 books in all. How many books are there per

nika2105 [10]

126/7 = 18

18 books per box

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2 years ago

2 x 6/7 <br><br> SEND HELP!!!!!!!!!!!

Allushta [10]

Answer: C. 2 6/7

Hope that helped! :)

8 0

3 years ago

write a polynomial function of least degree with integral coefficients that has the given zeros. -(1/3), -i

inessss [21]

Answer:

$f(x)=3x^3+x^2+3x+1$

Step-by-step explanation:

If a real number $-\frac{1}{3}$ is a zero of polynomial function, then

$x-\left(-\dfrac{1}{3}\right)=x+\dfrac{1}{3}$

is the factor of this function.

If a complex number $-i$ is a xero of the polynomial function, then the complex number $i$ is also a zero of this function and

$x-(-i)=x+i\ \text{ and }\ x-i$

are two factors of this function.

So, the function of least degree is

$f(x)=\left(x+\dfrac{1}{3}\right)(x+i)(x-i)=\left(x+\dfrac{1}{3}\right)(x^2-i^2)=\\ \\ =\left(x+\dfrac{1}{3}\right)(x^2+1)=\dfrac{1}{3}(3x+1)(x^2+1)=\dfrac{1}{3}(3x^3+x^2+3x+1)$

If the polynomial function must be with integer coefficients, then it has a form

$f(x)=3x^3+x^2+3x+1$

4 0

3 years ago