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Ivan
3 years ago
11

Please help me ma.. pleaseee

Mathematics
2 answers:
BabaBlast [244]3 years ago
6 0

Answer:

2461.76mm^2

Step-by-step explanation:

Pi times radius squared

3.14 times 28^2

Valentin [98]3 years ago
4 0

Step-by-step explanation:

area of a circle is

pi(r)square

3.14 (28)square

3.14 (784)

2461.76

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What is -8(2-3w)-5<br><br> Please explain!
MArishka [77]

Answer:

24w - 21

Step-by-step explanation:

-8(2 - 3w) - 5

We first expand the -8

-16 + 24w - 5

We then add -16 to -5

-16 + -5

= -21

We get the 24w, put in in the equation and get 24w - 21

7 0
3 years ago
Read 2 more answers
What was the equation of the graph below before it was shifted to the right 1.5 units?
Ira Lisetskai [31]

Answer:

 B is correct.

{tex]G(x)=x^3-x[/tex]

Step-by-step explanation:

We are given a graph of cubic polynomial after shift 1.5 unit right.

Equation of given graph is

G(x)=(x-1.5)^3-(x-1.5)

For right and left shift, change in x value or horizontal translation.

If we shift "a" unit left then change in x

x\rightarrow (x+a)

If we shift "a" unit right then change in x

x\rightarrow (x-a)

Here, we need to shift 1.5 unit left to get original function.

G(x)=(x-1.5)^3-(x-1.5)

Shift 1.5 unit left

F(x)=(x-1.5+1.5)^3-(x-1.5+1.5)

F(x)=x^3-x

Hence, B is correct function.

6 0
3 years ago
Read 2 more answers
Find the value of 7+b when b=20
Klio2033 [76]

Answer:

Step-by-step explanation:

b= 20

7+20= 27

answer is 27

5 0
3 years ago
Read 2 more answers
Is this true or false pls help ill give brainliest if its right
jek_recluse [69]

Answer:

true..?

Step-by-step explanation:

4 0
3 years ago
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Four times the larger of two numbers is equal to seven times the smaller. the sum of the numbers is 22. what are the numbers?
Goshia [24]
Answer:

The larger is 14 the smaller is 8

Explanation:

Let the larger number be L and the smaller be S
So we know that

1) L+S=22
And
2)4L=7S
From equation 1) we get L=22-S

Substitute this into equation 2) to get 4(22-S)=7S
88-4S=7S
88=11S
S=8. The smaller number is 8

As they total 22 the larger number is 14.
Check: 4x14=7x8. Yes

Solution 2:

Let x= larger number
And let y= smaller. umber

Now we are told that:
4x=7y--------eq1
We are also told that:
x + y=22-----eq2

Substitution method looks easier.


From eq1 x=(7/4)y. Substitute this into eq2
(7 /4)y +y=22
(7/4)y+(4/4)y=22
(11/4)y=22 multiply each side by 4
11y=88
y=8

From eq2, x+8=22
x=14
<span> </span>

<span>Hope this helps</span>

6 0
3 years ago
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