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3 years ago

Write down first five multiples of 7.

Mathematics

2 answers:

Marina86 [1]3 years ago

6 0

Answer:

7,14,21,28,35.

Step-by-step explanation:

7+7=14

14+7=21

21+7=28

Add 7 to each term to get the next or multiply 7 by 5 same answer

vitfil [10]3 years ago

3 0

Answer:

7, 14, 21, 28, 35

Step-by-step explanation:

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3 years ago

A town planner is interested in getting some demographic data about the households in the city. The city has four wards with the

UkoKoshka [18]

Answer:

Step-by-step explanation:

Population size= 2107+903+1505+1499

= 6014

Calculating the sample of ward B by using the stratified random sampling formula:

Stratified Random Sample, np= ( Np / N ) * n

where

np= pth stratum sample size

Np= pth stratum population size

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3 years ago

PLEASE HELP!! URGANT!!

ella [17]

Answer: 100

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(x+38)+(x+104)=134

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8 0

3 years ago

Evaluate the line integral, where C is the given curve. (x + 6y) dx + x2 dy, C C consists of line segments from (0, 0) to (6, 1)

Dima020 [189]

Split $C$ into two component segments, $C_1$ and $C_2$ , parameterized by

$\mathbf r_1(t)=(1-t)(0,0)+t(6,1)=(6t,t)$

$\mathbf r_2(t)=(1-t)(6,1)+t(7,0)=(6+t,1-t)$

respectively, with $0\le t\le1$ , where $\mathbf r_i(t)=(x(t),y(t))$ .

We have

$\mathrm d\mathbf r_1=(6,1)\,\mathrm dt$

$\mathrm d\mathbf r_2=(1,-1)\,\mathrm dt$

where $\mathrm d\mathbf r_i=\left(\dfrac{\mathrm dx}{\mathrm dt},\dfrac{\mathrm dy}{\mathrm dt}\right)\,\mathrm dt$

so the line integral becomes

$\displaystyle\int_C(x+6y)\,\mathrm dx+x^2\,\mathrm dy=\left\{\int_{C_1}+\int_{C_2}\right\}(x+6y,x^2)\cdot(\mathrm dx,\mathrm dy)$

$=\displaystyle\int_0^1(6t+6t,(6t)^2)\cdot(6,1)\,\mathrm dt+\int_0^1((6+t)+6(1-t),(6+t)^2)\cdot(1,-1)\,\mathrm dt$

$=\displaystyle\int_0^1(35t^2+55t-24)\,\mathrm dt=\frac{91}6$

6 0

3 years ago