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3 years ago

Umm I need a lot pf help here im lost

Mathematics

2 answers:

julia-pushkina [17]3 years ago

8 0

The answer is definitely 51.39 units

OleMash [197]3 years ago

7 0

Answer:

51.39 units³

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = area of base × height

Here area of base = 5.71 and height = 9, thus

V = 5.71 × 9 = 51.39 units³

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Find the radius of a circle with an area of 89 sqaure feet.

Dominik [7]

I am pretty sure that to find the area of a circle, it’s pi times radius squared.
So in your situation, the formula would be p89 squared. So first, multiply 89 times 89, which equals 7921. You could leave it and say the answer is 7921 pi squared, or you could multiply 7921 by 3.14 (pi rounded), which would get you 24871.94 So the answer would either be:
1.) 7921 pi squared
2.) 24,871.94 feet squared
Hope this helps

5 0

3 years ago

Read 2 more answers

Josie measured the diameter of the base of her

ra1l [238]

Answer:

6cm

Step-by-step explanation:

The radius is half of the diameter. Being 12 inches, the radius will be 6 inches.

7 0

3 years ago

Help me plss

Anastasy [175]

Answer:

lilet is 7 and margie is 21?

Step-by-step explanation:

36-15=21

21÷3=7

21 would be Margies age since its the older age, maybe im wrong i dont know

8 0

3 years ago

Can anyone do question 25 part c? :)

inna [77]

$\begin{cases}x^3\qquad\qquad\ \ \ when\ x\geq3\\5\qquad\qquad\quad \ when\ 0\ \textless \ x\ \textless \ 3\\x^2-x+2\quad\ when\ x\leq0 \end{cases}\\\\\\ (a)\\ f(0)\iff x=0\implies f(x)=x^2-x+2\\\\f(0)=0^2-0+2=2\\\\(b)\\ \{f(2)\iff x=2;\ \ f(1)\iff x=1\}\implies f(x)=5\\\\ f(2)=5\quad\wedge\quad f(1)=5\\\\ f(2)-f(1)=5-5=0$

$(c)\\ \big\forall \limits_{ n\in R}\ n^2\geq 0\ \ \Rightarrow\ \ \big\forall \limits_{ n\in R}\ (-n^2)\leq 0 \ \ \Rightarrow\ \ x\leq0\ \ \Rightarrow\ \ f(x)=x^2-x+2\\\\f(-n^2)=(-n^2)^2-(-n^2)+2=n^4+n^2+2$

5 0

4 years ago

Ac=15 and abc=12 what is the radius

SashulF [63]

Answer:I think it’s 90

Step-by-step explanation:

12x15=180

180 divided by 2 is 90

5 0

4 years ago