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3 years ago

Help me please i’m going back to math soon and only have a few minutes

Mathematics

1 answer:

drek231 [11]3 years ago

7 0

It's 0,3 hope this is right!!!

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Is 3 divisble by 48.532

skad [1K]

3 is not divisible by 48.532. but if it was opposite where 48.532 being divisible by 3 then yes it would be divisible

6 0

3 years ago

Solve for x. Round to the nearest tenth of a degree, if necessary.

monitta

Answer:

49.6°

Step-by-step explanation:

tangent = opposite / adjacent
tan x = 40/34
x = arctan (40/34)
x ≈ 49.6°

8 0

3 years ago

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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

Simplify 4a^3 b^2 x 6a^6b^9

Ket [755]

Answer:

24a^9 b^11

Step-by-step explanation:

$4a ^{3} b ^{2} \times 6a ^{6} b ^{9} \\ = (4 \times 6)a ^{3 + 6}b ^{2 + 9} \\ = 24a^{9} b^{11}$

5 0

3 years ago

Please help me to solve this problem

Leto [7]

So you can choose any number from 11 to 19.

I'll choose 11 for now.

Then you write, 11, the number, and then spell it out, eleven.

To show how many tens and ones, you can make a place value chart. You would make two boxes, the first one for tens and the other for ones.

You would put a 1 in the tens place and a 1 in the ones place.

I hope this helps!

6 0

3 years ago

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