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3 years ago

Someone help and include work/reasoning too please!

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

The value of x is 31

because straight line is equal to 180,so inorder to find the value of x you sum up all numbers and subtract by the the 180

59+52+38=149

180-149=31

therefore x=31

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3.49 hectograms equals how many decigrams

klasskru [66]

Answer:

3490 decigram

Step-by-step explanation:

$1 \:hectogram = 1000 \:decigram\\\\3.49\: hectogram = x\: decigram\\\\Cross\:Muliply\\\\x = 3.49\times 1000\\\\x = 3490 \:decigram$

8 0

3 years ago

1) A number which has more than two

Nutka1998 [239]

Answer:

C) Composite Number

Step-by-step explanation:

The composite number is one which has more than two factors.

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hope so it helped you

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3 years ago

Find the value of Y<br> .....

vekshin1

Answer:

$y = 6 \sqrt{3} \: units$

Step-by-step explanation:

In order to find the value of y, first we need to find the length of the perpendicular dropped from one of the vertices of the triangle to its opposite side.

By geometric mean theorem:

Length of the perpendicular

$=\sqrt{9\times 3}$

$=\sqrt{27}\: units$

Next, by Pythagoras theorem:

${y}^{2} = {9}^{2} + {( \sqrt{27} )}^{2} \\ \\ {y}^{2} = 81 + 27 \\ \\ {y}^{2} = 108 \\ \\ y = \sqrt{108} \\ \\ y = \sqrt{36 \times 3} \\ \\ y = \sqrt{ {6}^{2} \times 3} \\ \\ y = 6 \sqrt{3} \: units$

4 0

3 years ago

What is the perimeter of a rectangle with a length of (x^2+x) and a width of (2x^2+3x)

Mazyrski [523]

Answer:

Perimeter = 6x² + 8x

Step-by-step explanation:

Perimeter = 2(length + width)

perimeter = 2((x²+x)+(2x²+3x))

perimeter = 2(x²+2x² + x+3x)

perimeter = 2(3x² + 4x)

perimeter = 2*3x² + 2*4x

perimeter = 6x² + 8x

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3 years ago

How many times does 0.75 fit into 9 wholly<br>I need help

nexus9112 [7]

Answer:

12. 9÷0.75.

Thank you. please mark me the braniliest.

3 0

1 year ago