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3 years ago

Write and simplify an expression for the perimeter of each figure.

Mathematics

1 answer:

gavmur [86]3 years ago

8 0

Step-by-step explanation:

2(2m-1) + 2(m+1)

= 4m - 2 + 2m + 2

= 6m - 2 + 2

= 6m

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(-2x-5)=23 solve for it step by step please

expeople1 [14]

Answer: $x=-14$

Step-by-step explanation:

Get rid of parentheses: $-2x-5-23=0$

Add all the numbers together, and all the variables: $-2x-28=0$

Move all terms containing x to the left, all other terms to the right:

$-2x=28$

$x=28/-2$

$x=-14$

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3 years ago

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Solve for the value of x

lukranit [14]

x= 55°

according to the picture .........

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postnew [5]

Bottom right corner box is the answer.

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3 years ago

I need help answering the question in the picture provided

adoni [48]

answer:

(a).

Equation of circle is x² + y² - 25 = 0

(b).

(-5, 0) » yes

(√7, 1) » no

(-3, √21) » no

(0, 7) » no

Step-by-step explanation:

(a).

If centred at origin, centre is (0, 0)

General equation of circle:

${ \boxed{ \bf{ {x}^{2} + {y}^{2} + 2gx + 2fy + c = 0}}}$

but g and f are 0:

${x}^{2} + {y}^{2} + c = 0 \\ but : \\ c = {g}^{2} + {f}^{2} - {r}^{2} \\ c = { - 25}$

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3 years ago

Over time, Bailey has buried 6 large bones and 9 small bones in a hole. What is the ratio of small bones to large bones in the h

Wewaii [24]

Answer:

3:2

Step-by-step explanation:

to write a ratio, we can do ?:? in order. for example, 5 big shops to 10 small shops would be 5:10 (we are going to simplify it later) You always have to put the ratio numbers in order like they are in the question. In this case, small bones : big bones. We get 9:6. We can then divide both sides by a common factor, in this case 3. The end result is 3:2. Hope this helps!

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2 years ago

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