2 years ago

Please help me after all of my questions are solved i will do a 100 points giveaway

Mathematics

2 answers:

Umnica [9.8K]2 years ago

8 0

Answer:

A and B

Step-by-step explanation:

4(d-2)

4 times d is 4d

4 times -2 is -8

sasho [114]2 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Vu has 2 pizzas that he cuts into sixths how many 1/6-size pizzas does he have?

const2013 [10]

12 slices in total (6 slices per pizza)

8 0

2 years ago

Read 2 more answers

I need the middle one

viva [34]

Answer:

Step-by-step explanation:

1 min = 4/3

4/3 × 6 = 8

the answer is 8

4 0

3 years ago

Read 2 more answers

Find the length of the tangent segment AB to the circles centered at O and O' whose radii are a and b respectively when the circ

bixtya [17]

Answer:

$AB=2\sqrt{ab}$

Step-by-step explanation:

From figure,

$OA=a, \quad \quad O'B=b\\\Rightarrow OO'= (a+b) \quad \quad \text{and}\quad OD=(a-b)$

In triangle $OO'D$

$(OO')^2=(OD)^2+(O' D)^2$

$\Rightarrow (a+b)^2=(a-b)^2+(O' D)^2\\\Rightarrow a^2+b^2+2ab-a^2-b^2+2ab=(O' D)^2\\\Rightarrow 4ab=(O' D)^2\\\Rightarrow O'D=2\sqrt{ab} \\\Rightarrow O' D=2\sqrt{ab}=AB \quad \quad [\because O' DAB\;\; \text{is a rectangle.}]$

Hence, $AB=2\sqrt{ab}$

6 0

3 years ago

Refer to the figure to complete the proportion A/C = Y/?

salantis [7]

Hello,
Please, see the attached file.
Thanks.

3 0

2 years ago

Evan walks his dog 4 times around the perimeter of a

frez [133]

the answer is c, 0.7.

2.8 / 4 = 0.7

4 0

3 years ago