All categories

3 years ago

Help with #1 please!

Mathematics

2 answers:

dlinn [17]3 years ago

7 0

From 50 to the end(50 is not filled in)

Hope this helped☺☺

(Sorry it took a long time)

Anna [14]3 years ago

6 0

She got the right answer
...

You might be interested in

Solve the proportion q/2/3equals1/2/1/4

sergejj [24]

Cant even understand that sorry

3 0

4 years ago

Read 2 more answers

Hi:) I need help with part 9(ii) ? Thanks :)!

Goshia [24]

Answer:

see explanation

Step-by-step explanation:

Given

2BD = 7BT , then

2(d - b ) = 7(t - b) ← distribute both sides

2d - 2b = 7t - 7b ( add 7b to both sides )

2d + 5b = 7t, thus

2 $\left[\begin{array}{ccc}10.5\\10\\\end{array}\right]$ + 5 $\left[\begin{array}{ccc}0\\3\\\end{array}\right]$ = 7t

$\left[\begin{array}{ccc}21\\20\\\end{array}\right]$ + $\left[\begin{array}{ccc}0\\15\\\end{array}\right]$ = 7t

$\left[\begin{array}{ccc}21\\35\\\end{array}\right]$ = 7t , thus

t = $\frac{1}{7}$ $\left[\begin{array}{ccc}21\\35\\\end{array}\right]$ = $\left[\begin{array}{ccc}3\\5\\\end{array}\right]$

Hence T = (3, 5 )

8 0

3 years ago

Read 2 more answers

fomenos

Answer:

Kindly check attached picture for barchart and piechart distribution

Step-by-step explanation:

Given the name data:

Name ____ freq ___R/Freq ____% frequency

Brown ____7 ______0.14 ______14

Smith ____ 12 -____ 0.24 ______24

Williams__ 8 ______0.16 ______ 16

Miller ____6 ______0.12 ______ 12

Jones ___ 7 ______ 0.14 ______ 14

Johnson _ 10 _____ 0.20 ______20

The three most popular last names are :

Smith, Johnson and Miller

4 0

3 years ago

" A car is travelling around a horizontal circular track with radius r = 230 m at a constant speed v = 17 m/s as shown. The angl

Luda [366]

R = 230 m
v = 17 m/s

Formula: |Ac| = v^2 / r

Point A

|Ac| = v^2 / r = (17m/s)^2 / (230m) = 1.257 m/s^2

Components:

cos(25) = - [ x-component / |Ac| ] => x-component = -|Ac|*cos(25)
sin(25) = - [y-component / |Ac| ] => y-component = - |Ac|*sin(25)

x-component = - 1.256 * cos(25) m/s^2 = - 1.139 m/s^2
y-component = -1.256 * sin (25) m/s^2 = - 0.531 m/s^2

Point B

|Ac| = 1.256

x-component = - 1.256 cos(58) = - 0.666 m/s^2
y-component = + 1.256 sin(58) = + 1.065 m/s^2

7 0

3 years ago

Simplify the following expression 3^2/5 x 3^-7/5. I think it is 1/3. 3^-5/5

kobusy [5.1K]

Answer:

1/3

Step-by-step explanation:

3^2/5 x 3^-7/5

We know that a^b* a^c = a^(b+c)

3^(2/5 -7/5)

3^ (-5/5) = 3^ -1

We know that a^-b = 1/ a^b

3^-1 = 1 / 3

8 0

4 years ago