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Mrrafil [7]
3 years ago
12

Help me plz !!!!!!!!!!​

Mathematics
2 answers:
Sholpan [36]3 years ago
8 0

Answer:

B. 72•3cm

step by step explanation

circumference of a circle= 2πr

π= 3•142

r= 11•5

2×3•142×11.5

= 72•26

~ 72•3cm

kiruha [24]3 years ago
5 0

Answer:

The answer is b. 72.3cm

Step-by-step explanation:

11.5cm is the radius

To find the circumference multiply the radius by 2 then multiply it again by 3.14

3.14 is the beginning of pi.

e.g - 2 × 3.14 x 11.5

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PLEASE I’LL GIVE BRAINLIEST !!!!Complete the mapping of the vertices of ADEF.
alisha [4.7K]

D'=(-4,2)
E'=(-1,1)
F'=(1,5)

Hope it heled.

Please note this rotation just allows you to turn (x,y) to (y,x)

Here are the rotation rules: 90° clockwise rotation: (x,y) becomes (y,-x) 90° counterclockwise rotation: (x,y) becomes (-y,x) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y)

5 0
2 years ago
Being timed help
Makovka662 [10]
I'm assuming 43 is actually 4/3
see what number the previous term must be multiplied by to get the next term
4 *something = 12, 12*something=36
common ratio is 3
6 0
3 years ago
A store charges their customers based on the number of items that they buy. Jane bought four items and was charged $15 and Georg
mojhsa [17]

Answer:

A) f(x) = 3x + 3; f(10) = 33

Step-by-step explanation:

39 = 3x + 3 \\ \\ 36 = 3x \\ \\ 12 = x

15 = 3x + 3 \\ \\ 12 = 3x \\ \\ 4 = x

*33 = 3x + 3 \\ \\ 30 = 3x \\ \\ 10 = x

** From what the problem said, we know that we selected the correct equation.

I am joyous to assist you anytime.

7 0
3 years ago
Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’
lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

x-0.1x+2.70=56.70

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the <em>original price of the jeans</em>.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans <em>after</em> the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is <em>not</em> a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

(70)-0.1(70)+2.7\stackrel{?}{=}56.70

Multiply:

70-7+2.7\stackrel{?}{=}56.7

Subtract:

63+2.7\stackrel{?}{=}56.7

Add:

65.7\neq56.7

However, we <em>can</em> verify that 60 <em>is</em> the solution by substituting. So, substitute 60 for every x:

(60)-0.1(60)+2.7\stackrel{?}{=}5.7

Multiply:

60-6+2.7\stackrel{?}{=}56.7

Subtract:

54+2.7\stackrel{?}{=}56.7

Add:

56.7\stackrel{\checkmark}{=}56.7

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0
3 years ago
Read 2 more answers
8(-2x+1)=30-(-4+3x)<br><br> solve for x
Fittoniya [83]

Answer:

-2

Step-by-step explanation:

8 (-2x + 1) = 30 - (-4 + 3x)   Distribute

-16x + 8 = 30 + 4 - 3x  Combine like terms

-16x + 8 = 34 - 3x   Rearrange terms

-13x = 26 Divide by -13 on both sides

x = -2

4 0
2 years ago
Read 2 more answers
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