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3 years ago

Hi I need helppppppppppppppppppp

Mathematics

2 answers:

wariber [46]3 years ago

6 0

1.) X=4, 4/4=1, Y=1
2.) X=8, 8/4=2, Y=2
3.) X=16, 16/4=4, Y=4
:)

tatiyna3 years ago

5 0

3738383792639263846736283

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What is the missing length of this rectangle?

makvit [3.9K]

Answer:
5ft

explanation:
9ft - 4ft = 5ft

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3 years ago

Marta is making 3 servings of fruit salad.she adds 3\8 cup blueberries for each serving. Her measuring cup holds 1\8 cup. How ma

Vilka [71]

She will get 3 because if you multiply 1/8 and 3 you will get an answer of 3/8

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4 years ago

Consider the transformation T: x = \frac{56}{65}u - \frac{33}{65}v, \ \ y = \frac{33}{65}u + \frac{56}{65}v

irina1246 [14]

Answer:

Step-by-step explanation:

$T: x = \frac{56}{65}u - \frac{33}{65}v, \ \ y = \frac{33}{65}u + \frac{56}{65}v$

$\frac{d(x,y)}{d(u,v)} =\left|\begin{array}{ccc}x_u&x_v\\y_u&y_v\end{array}\right|$

$=(\frac{56}{65} )^2+(\frac{33}{65} )^2\\\\=\frac{(56)^2+(33)^2}{(65)^2} \\\\=\frac{4225}{4225} \\\\=1$

B )

$S:-65 \leq u \leq 65, -65 \leq v \leq 65$

$T(65,65)=(x=\frac{56}{65} (65)-\frac{33}{65} (65),\ \ y =\frac{33}{65} (65)+\frac{56}{65} (65)\\\\=(23,89)$

$T(-65,65)=(-56-33,\ \ -33+56)\\\\=(-89,23)$

$T(-65,-65) = (-56+33,-33-56)\\\\=(-23,-89)$

$T(65,-65)=(56+33, 33-56)\\\\=(89,-23)$

$\int \!\! \int_{T(S)} \ x^2 + y^2 \ {dA}$

$=\int\limits^{65}_{v=-65} \int\limits^{65}_{u=-65}(x^2+y^2)(\frac{d(x,y)}{d(u,v)} du\ \ dv$

Now

$x^2+y^2=(\frac{56}{65} u-\frac{33}{65} v)^2+(\frac{33}{65} u+\frac{56}{65} v)^2$

$[(\frac{56}{65} )^2+(\frac{33}{65}) ^2]u^2+[(\frac{33}{65} )^2+(\frac{56}{65}) ^2]v^2$

$=\frac{(65)^2}{(65)^2} u^2+\frac{(65)^2}{(65)^2} v^2=u^2+v^2$

$\int \!\! \int_{T(S)} \ x^2 + y^2 \ {dA}$

$=\int\limits^{65}_{v=-65} \int\limits^{65}_{u=-65}(u^2+v^2) du\ \ dv$

$=\int\limits^{65}_{-65}\int\limits^{65}_{-65}u^2du \ \ dv+\int\limits^{65}_{-65}\int\limits^{65}_{-65}v^2du \ \ dv$

By symmetry of the region

$=4\int\limits^{65}_0 \int\limits^{65}_0u^2 du \ \ dv + u\int\limits^{65}_0 \int\limits^{65}_0v^2 du \ \ dv$

$= 4(\frac{u^3}{3} )^{65}_{0}(v)_0^{65}+(\frac{v^3}{3} )^{65}_{0}(u)_0^{65}\\\\=4[\frac{(65)^4}{3} +\frac{(65)^4}{3} ]$

$=\frac{8}{3} (65)^4$

8 0

3 years ago

A train is carrying 1425 passengers each of the trains cars can hold 30 passengers how many train cars are needed to hold all of

Sunny_sXe [5.5K]

Divide 30 by 1425
1425/30 = 47.5
Mixed number = whole number + fraction
47 1/2 trains

7 0

3 years ago

Read 2 more answers

Find the ordered pairs for the x- y-intercepts of the equation 9y−2x=18. x-intercept(0,2), y-intercept(−9,0) x-intercept(−9,0),

liq [111]

X intercept is the value of x when y=0, y intercept is the value of y when x=0
9y-2x=18
when x=0, y=2, so the y intercept is (0,2)
when y=0, x=-9, so the x intercept is (-9,0)

4 0

3 years ago