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3 years ago

Please help! Will mark brainliest if ur right

Mathematics

2 answers:

iogann1982 [59]3 years ago

8 0

The answer is 4. The base is the bottom layer.

sweet [91]3 years ago

4 0

Answer:

It would be 7.

Step-by-step explanation:

You have to count the cubes that you can see and then the cubes you assume would be hidden behind the others. You can see 6 cubes, and we assume there's one hidden behind them.

Hope this helps!

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The perimeter of the rectangle below is 132 units. Find the length of side AB.

melisa1 [442]

Answer:

AB = 35

Step-by-step explanation:

For the value of variable z....;

;Perimetre = 132

; 132 = 2(4z + 3) + 2(5z)

; 132 = 8z + 6 + 10z

; 132 - 6 = 8z + 10z

; 126 = 18z

;the value of...z = 7

Therefore the value of length AB;

AB = 5z...then substitute the value of z into the length of AB

; AB = 5(7)

;AB = 35

5 0

3 years ago

Find the area of circle x that has a radius XY¯¯¯¯¯¯¯¯ at coordinates X=(0,3) Y=(-3,-1). Use 3.14 for pi, and round your answer

xeze [42]

Explanation is $^{}$ in a file

bit. $^{}$ ly/3gVQKw3

8 0

3 years ago

Please help me. 4^(x+1)+2^(x+1)+2^x-1=0

Olin [163]

Answer:

x = -2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Devin sent a total of 20 texts and emails on Monday. The number of texts was one less than twice the number of emails. Find the

anyanavicka [17]

Answer:

21 mails

Step-by-step explanation:

Let there are x no of texts and y no of emails.

Condition 1,

x+y = 20 ...(1)

Condition,

x=2y-1 ...(2)

Put the value of x from equation (2) in (1). So,

(2y-1)+y = 20

Taking like terms together,

2y-y=20+1

y=21

So, Devin sent 21 mails,.

7 0

4 years ago

The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

Ad libitum [116K]

$5^2 + 12^2 = 13^2$

is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

$x^2 + (x+7)^2 = 13^2$

$2x^2 + 14 x + 49 - 169 = 0$

$x^2 + 7x - 60 = 0$

$(x+12)(x-5)=0$

Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

8 0

4 years ago