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scoray [572]
3 years ago
15

You need to estimate 6.849 x 11 I need help please

Mathematics
2 answers:
makkiz [27]3 years ago
8 0
75.339
nearest tenth: 75.3
nearest hundredth 75.34
nearest whole number 75
Alchen [17]3 years ago
7 0
If rounding 6.849 to 7, 11x7 equals 77. So 6.849 x 11 is approximately 77.
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Kaylen has $12.63 left.

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4 0
3 years ago
G) (-6t + 2z) - (7z - 7t)​
vodomira [7]

Answer:

-13t - 5z

Step-by-step explanation:

-6t + 2z - 7z - 7t

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3 0
2 years ago
Claire has 38 yards of material to make costumes for the school play.
NemiM [27]

Answer:

16

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A torus is formed by rotating a circle of radius r about a line in the plane of the circle that is a distance R (&gt; r) from th
jeyben [28]

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\displaystyle2\pi\int_R^{R+2r}2xy\,\mathrm dx

where 2y=\sqrt{r^2-(x-(R+r))^2}-(-\sqrt{r^2-(x-(R+r))^2})=2\sqrt{r^2-(x-(R+r))^2}.

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\displaystyle4\pi\int_R^{R+2r}x\sqrt{r^2-(x-(R+r))^2}\,\mathrm dx

Substitute

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\displaystyle4\pi r^2\int_{-\pi/2}^{\pi/2}(R+r+r\sin t)\cos^2t\,\mathrm dt

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\displaystyle4\pi r^2(R+r)\int_{-\pi/2}^{\pi/2}\cos^2t\,\mathrm dt

Write

\cos^2t=\dfrac{1+\cos(2t)}2

so the volume is

\displaystyle2\pi r^2(R+r)\int_{-\pi/2}^{\pi/2}(1+\cos(2t))\,\mathrm dt=\boxed{2\pi^2r^2(R+r)}

6 0
2 years ago
Lavonne has 4/5 cup of blueberry muffins requires 1/3 cupof blueberrys how many batches of blueberry muffins can lovonne make
34kurt
How many 1/3 cups blueberry can you get out of the 4/5 cup..

= (4/5) / (1/3)
= (4/5)*(3/1)
= 12/5
= 2 2/5 batches
6 0
2 years ago
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