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klemol [59]
3 years ago
5

have two questions one what is 1.352 and 0.84 closest to 0,1,2,3 and the other questions is 1 4/10 and 0.375

Mathematics
2 answers:
Mkey [24]3 years ago
5 0
One and you don't give enough info on the second one
Delvig [45]3 years ago
3 0

Answer:

1

you dont provide info



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Sam decides to build a square garden. If the area of the garden is 25x2 + 30x + 9 square feet, what is the length of one side of
seropon [69]
The correct answer is C. (5x+3) feet, and here is how I got it.
This is the equation you need to use:
(a+b)^2 = (a+b) (a+b)
So, let us plug in 5x and 3 here:
(5x+3)^2 = (5x+3)(5x+3) = 25x^2 + 15x + 15x + 9 = 25x^2 + 30x + 9 which is the area of the garden. 
5 0
3 years ago
Find the approximate area between the curve f(x) = -4x² + 32x and on the x-axis on the interval [0,8] using 4 rectangles. Use th
Doss [256]

Split up the interval [0, 8] into 4 equally spaced subintervals:

[0, 2], [2, 4], [4, 6], [6, 8]

Take the right endpoints, which form the arithmetic sequence

r_i=2+\dfrac{8-0}4(i-1)=2i

where 1 ≤ <em>i</em> ≤ 4.

Find the values of the function at these endpoints:

f(r_i)=-4{r_i}^2+32r_i=-16i^2+64i

The area is given approximately by the Riemann sum,

\displaystyle\int_0^8f(x)\,\mathrm dx\approx\sum_{i=1}^4f(r_i)\Delta x_i

where \Delta x_i=\frac{8-0}4=2; so the area is approximately

\displaystyle2\sum_{i=1}^4(-16i^2+64i)=-32\sum_{i=1}^4i^2+128\sum_{i=1}^4i=-32\cdot\frac{4\cdot5\cdot9}6+128\cdot\frac{4\cdot5}2=\boxed{320}

where we use the formulas,

\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2

\displaystyle\sum_{i=1}^ni^2=\frac{n(n+1)(2n+1)}6

6 0
3 years ago
Solve the system of equations for the variables: x+2y-z=3 x+y-2z= -1
8_murik_8 [283]

Answer:

z=0

x= -5

y=4

Step-by-step explanation:

Check the attachment please

Hope this helps :)

4 0
3 years ago
Read 2 more answers
What's the awnswer to 10 divided by 2/7?
Dvinal [7]
34.48

(2/7=.29, 10/.29=34.48)
4 0
3 years ago
How can you obtain the graph of y=x+4 from the graph of y=x using a horizontal translation
Mkey [24]
I am not sure i am in 7th grade but i prefer you to use the app called photomath
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3 years ago
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