3 years ago

1

Mathematics

1 answer:

nadya68 [22]3 years ago

4 0

Answer:

(2x+3)(x+4)

Step-by-step explanation:

hope the picture helps.

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Jobisdone [24]

68% is 0.68 and 17/25

3/8 is 0.375 and 37.5%

0.875 is 87.5% and 7/8

alyssa got 40% right

4m+t is -18

t/mr is 1/6 or 0.16 repeating

3m-5t is -2

mt/r is -2

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3 years ago

Use the figure shown below to find the value of x

JulsSmile [24]

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3 years ago

4(5n -7) =10+2 i need step by step explanation i dont get it

ser-zykov [4K]

Answer:

n=2

Step-by-step explanation:

4(5n-7)=10+2

1) First, distribute (multiply out 4)

20n-28=10+2

2) Combine like terms (add 10 and 2)

20n-28=12

3) Isolate the variable (Add 28 to 12)

20n=40

4) Isolate the variable (Divide by 20)

n=2

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4 years ago

Find the product 12(-3)

sweet [91]

12 x 3 = 36 so it’s -36

4 0

3 years ago

The area of a circle is 80.86cm2. Find the length of the radius rounded to 2 DP.

weeeeeb [17]

Answer:

Solution given:

The area of a circle =80.86cm²

we have:

The area of a circle =πr²

substituting value of area of circle we get

80.86cm=3.14*r²

dividing both side by 3.14

80.86/3.14=3.14*r²/3.14

25.75=r²

doing square root on both side

$\sqrt{25.75}=\sqrt{r²}$

r=5.07cm

The length of radius is 5.07cm

5 0

3 years ago