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brilliants [131]
3 years ago
9

Use a calculator to work out: (2dp) 4.52 - √53

Mathematics
1 answer:
PolarNik [594]3 years ago
8 0

Answer:

≈ -2.76

≈ -2.8 (rounded to nearest tenths place)

Step-by-step explanation:

4.52-\sqrt{53}=\\4.52-7.28=\\-2.76

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Sam has 128 marbles how many hundreds are in this number
Vlad1618 [11]
<span>1
Written out, there are one-hundred and twenty-eight marbles. When written out, you can see that there is only 1 hundred in this number. Therefore the answer is 1</span>
7 0
3 years ago
8w-6(w-4)=2(w+9) <br> please help asap
uranmaximum [27]

Answer:

w = -7.04 and 1.705

Step-by-step explanation:

First lets distribute.

We have 8w-6w(w-4), so let's distribute the -6w to w and -4

8w-6w^2+24w = 2(w+9)

Now for the other side we distribute 2 to w and 9

8w-6w^2+24w = 2w +18

Now we combine like terms

6w^2+32w = 2w +18

Carry both 2w and 18 to the other side

6w^2 +30w -18 = 0

Now we can factor the equation, i used the quadratic method which is x= -b+- the square root of b^2-4ac /2a (in this case x would be w)

Plugging that in:

x= -32 +- square root of 32^2 -4(6 * -18) / 2(6)

-32 +- square root of 1024 +1728 / 12

-32 +- square root of 2752 /12

-32 +- 52.46 /12

x = -32 - 52.46/12   and  -32 + 52.46/12

x=  -84.46/12      and      20.46/12

x= -7.04  and  1.705

so w = -7.04 and 1.705

Sorry this was so complicated, but I hope this helps

6 0
2 years ago
The math club is selling gift wrap for a fundraiser. They sold all 45 rolls of solid wrapping paper at $4 each and rolls of patt
Aliun [14]
They sold 17 rolls. If 45 were sold at $4 dollars then $4×45= 180 If they made 265 dollars so you have to subtract 180$265-180= 85 dollarsYou know the remainder were sold at $5 dollar and dividing 85÷5= 17
4 0
3 years ago
Write and solve an inequality<br> thirty is less than the sum of a<br> number x and 8.
VashaNatasha [74]

Answer:

30<x+8 and 22<x

Step-by-step explanation:

subtract 8 from 30 to get 22

7 0
3 years ago
A pie company arranges its three-flavor cheesecake sampler into equal-sized slices as shown, where S represents strawberry, C re
Citrus2011 [14]

Answer:

37.68 square inches

Step-by-step explanation:

Given:

A pie company arranges its three-flavor cheesecake sampler into equal-sized slices: S represents strawberry, C represents chocolate, and P represents plain.

Diameter of the pie = 12 inches

To find: total area of the strawberry portion in the pie

Solution:

Diameter of the pie = 12 inches

Radius of the pie (r) = Diameter / 2 = \frac{12}{2}=6 inches

Area of the pie = \pi r^2=3.14(6)^2=113.04 square inches

Ratio of the strawberry portion in the pie = \frac{2}{6}=\frac{1}{3}

Therefore,

total area of the strawberry portion in the pie = \frac{1}{3}(113.04)=37.68 square inches

6 0
3 years ago
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