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valentinak56 [21]
3 years ago
15

Find the value of |-9 + 1| - 4(4).

Mathematics
2 answers:
solong [7]3 years ago
6 0

|-9 + 1| - 4(4)

|-9 + 1| = |-8| = 8

4(4) = 4x4 = 16

Now you have 8-16 = -8

The answer is -8

Olin [163]3 years ago
4 0

Answer:

according to me it should be -24

but it's not in options

Step-by-step explanation:

(-9+1)-4(4)

(-8)-16

-24

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A carpet manufacturer is inspecting for flaws in the finished product. If there are too many blemishes, the carpet will have to
balandron [24]

Answer:

Neither binomial nor normal distribution

Step-by-step explanation:

In binomial distribution Sumner of trials are fixed and there is only two outcomes either success or failure

But in this question there are no fixed trials and outcomes is not proper so this is not a binomial distribution.

In normal distribution there is information of mean and variance which is also not give in the question so it is also nit a normal distribution

So it is neither binomial nor normal distribution

7 0
3 years ago
I need help finding both volume and surface area
Svetradugi [14.3K]

Answer:

<u>Volume</u>

For the rectangle, h = 3cm, l = 8cm, w = 6cm
V = length x width x height
V = 8cm x 6cm x 3cm
V = 144cm^3

For the semi circle, we need to find the radius. The radius is width/2, so 6cm/2 = 3cm. r = 3cm, \pi = 3.14
V = radius^2 x height x \pi
V = 3cm^2 x 3cm x 3.14
V = 84.8 cm^3/2 (because the cylinder needs to be divided to form a semi-circle)
V= 42.4cm^3 (there are two cylinders though so we will multiply this by 2 in the total volume)

Total volume:
V = 144cm^3 + 42.4cm^3(2)
V = 186.4cm^3

<u>Surface Area</u>

Rectangular prism:
A = 2[w(l) + h(l) + h(w)]
A = 2[6cm(8cm) + 3cm(8cm) + 3cm(6cm)]
A = 180cm^2
But there are two sides that are covered by the semi-circular prisms, so we will have to calculate those sides and remove them.
A = l x w
A = 6cm x 3cm
A = 18cm^2(2) (2 being the two faces)
A = 36cm^2

A = 180cm^2 - 36cm^2
A = 144cm^2 (the area of the rectangle)

Semi-circular prism:
A = 2\pirh + 2\pir^2
Earlier, we found out that the radius of the circle is 3cm, so we will plug that in.
A = 2(3.14)(3cm)(3cm) + 2(3.14)(3cm)^2
A = 113.09cm^2

Total surface area:
A = 144cm^2 + 133.09cm^2
A = 277.09cm^2

Therefore the total volume of the prism is 186.4cm^3 and the total surface area is 277.09cm^2.





6 0
2 years ago
What is 1/4 of 20? what is an equivalent fraction to 1/2?
Vinvika [58]
1/4 of 20 is 5.. and 5/10, 3/6, 2/4, 6/12 are all equal to 1/2
3 0
3 years ago
The label on a package of bolts says each bolt has a diameter of 0.35 inch. To be in the package, the percent error of the diame
qaws [65]

Answer: No

Step-by-step explanation:-

Labeled diameter on the bolt = 0.35 inch

The observed diameter of the bolt= 0.33 inch

{\text {Percentage Error}}=|\frac{\text {labeled value}-{Observed value}}{\text {Observed value}}|\times 100\%

{\text{Percentage Error}=|\frac{0.35-0.33}{0.33}|\times 100\%=6.06\%

For the bolt to be in the package, the percent error must be less than 5%. As the percent error is 6.06% which is greater than 5%, the bolt cannot be in the package.



7 0
3 years ago
Read 2 more answers
If the height of a cone is 7.5 cm and the radius is 2 cm, find the approximate volume of the cone.
larisa86 [58]
Volume: h • pi r^2

Volume: (7.5) • pi (2)^2

Volume: 94.247796

Just round to your teacher’s liking
6 0
2 years ago
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