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skad [1K]
2 years ago
5

Which of the following numbers represents the fraction 8/9 to the nearest percent?

Mathematics
1 answer:
jekas [21]2 years ago
6 0
The number that presents 8/9 to the nearest percent is .89.
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What is the value of x when the Richter scale rating is 7.9 round your answer to the nearest
Oksi-84 [34.3K]
If no base is stated, then assume base 10
log(x)=log_{10}(x)
rememer
a=log_b(c) translates to b^a=c


so
r=log(x) or
r=log_{10}(x) translates to 10^r=x

so when r=7.9, what is x
10^r=x
10^{7.9}=x
79432823.472428=x
round to nearest ???
thousanth? 79432823.472=x
hundreth? 79432823.47=x
tenth? 79432823.5=x
4 0
3 years ago
Someone pls help will give brainliest
liberstina [14]
3. 60 divide by 360 times pi times (8)2=33.51 squared inch

4. 120divide by 360 times pi times (5 over 2)2=40.9 squared inch
5 0
4 years ago
Find the area of the circle whose equation is x2+y2=6x-8y​
Semenov [28]

Answer:

Given that the equation of a circle is :

\green{ \boxed{\boxed{\begin{array}{cc}  {x}^{2}  +  {y}^{2}  = 6x - 8y \\  =  >  {x}^{2}  +  {y}^{2}   - 6x + 8y = 0 \\  =  >  {x}^{2}  +  {y}^{2}  + 2 \times ( - 3) \times x + 2 \times 4 \times y = 0 \\  \\  \sf \: standard \: equation \: o f \: circle \: is :  \\   {x}^{2}  +  {x}^{2}  + 2gx + 2fy + c = 0 \\  \\  \sf \: by \: comparing \\  \\ g =  - 3 \\ f = 4 \\ c = 0 \\  \\  \sf \: radius \:  \: r =  \sqrt{ {g}^{2}  +  {f}^{2} - c }  \\  =  \sqrt{ {( - 3)}^{2} +  {4}^{2} - 0  }  \\  =  \sqrt{9 + 16}  \\   = \sqrt{25}  \\  = 5 \: unit \\  \\  \bf \: area \:  = \pi {r}^{2}  \\  = \pi \times  {5}^{2}  \\  =\pink{ 25\pi \:  { unit }^{2} }\end{array}}}}

6 0
3 years ago
The ratio of a model scal die cast motorcycle is 1:18. the model is 5.25 inches long. what is the length of the actual motorcycl
Rudik [331]
1: 18 = 5.25/x
18(5.25)=1x
94.5=1x
94.5/1=1x/1
94.5= 7ft 10 1/2 in
PROBABLY WRONG CHECK WITH SOMEONE
4 0
3 years ago
Nancy has a big chocolate bar shaped like a rectangular prism. It is 15 centimeters long, 14 centimeters wide, and 2 centimeters
Leya [2.2K]

Answer: 420 cm^{3}

Step-by-step explanation:

The volume V of a rectangular prism is given by:

V=(length)(width)(thickness)

If the chocolate bar has the following dimensions:

length=15 cm

width=14 cm

thickness=2 cm

Its volume is:

V=(15 cm)(14 cm)(2 cm)

V=420 cm^{3}

4 0
3 years ago
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