Ask question

Ask question

All categories

3 years ago

6

Can someone help me with my math homework? It is due today and I don’t understand. Could you also explain how you got the answer

so I can try myself too? Thank you!!!!

1 answer:

Assoli18 [71]3 years ago

8 0

Answers

(1) a = 16 , (2) x =4 , (3) x = 0 ,(4) n =-20 , (5) r = 20 and (6) x = -11

Step-by-step explanation:

(1) 6 = a/4 + 2

4 = a/4 (It is because when you bring +2 over to the left it will become 6 -2)

a = 16 (it is because of the fraction, so when you bring the divisor over it becomes x 4)

The following questions same as qns 1 too

(2) -6 + x/4 = -5

x/4 = 1

x = 4

(3) 9x -7 = -7

9x = 0

x = 0

(4) 0 = 4 + n/5

-4 = n/5

n = -20

(5) -4 = r/20 -5

1 = r/20

20 = r

(6) -1 = 5 + x/6

-6 = 5 + x

-11 = x

You might be interested in

3. If the circumference of a circle is 44 m, find its area.<br><img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="

Natali5045456 [20]

Answer:

$\huge\blue{ \mid{ \underline{ \overline{ \tt ♡ ANSWER : ♡ }} \mid}}$

Circumference of the circle = 44 m

Circumference Formula = 2πr

Let's take the radius as 'r' m.

Radius (r) =

$2πr = 44 \\ 2 × 3.14 × r = 44 \\ r = 44/6.28 \\ r = 7 \: m.$

Area of the circle = πr²

$= 3.14 × 7² \\ = 153.86 \: m ^{2}$

=> Area of the circle = <u>153.86 m² = 154 m² (approx.)</u>

8 0

3 years ago

Wich set of shapes contains members that are always similar to one another

love history [14]

Equailateral triangles

7 0

3 years ago

(?,5) is on the line 4x-7y=1. Find the other half of the coordinate.

ludmilkaskok [199]

The coordinate is an ordered pair $(x,y)$ . We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.

$4x-7y=1\\4x-7(5)=1\\4x=36\\x=9$

$(9,5)$

8 0

3 years ago

Tìm chu kì của hàm số y=<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1-cos2x%2Bsin2x%7D%7B1%2Bcos2x%2Bsin2x%7D" id="TexFormula1"

Andreyy89

Don’t know 67’y ,57;?answer is fast one

4 0

3 years ago

The Environmental Protection Agency records data on the fuel economy of many different makes of cars. Data on the mileage of 20

artcher [175]

Answer:

A) 8.5 miles per gallon

Step-by-step explanation:

Given

$x = \{12\ 13\ 15\ 16\ 16\ 17\ 18\ 18\ 19\ 19\ 20\ 20\ 22\ 23\ 24\ 26\ 26\ 27\ 27\ 29\}$

$n = 20$

Required

The IQR

This is calculated as:

$IQR = Q_3 - Q_1$

Calculate $Q_1$

$Q_1 = \frac{1}{4}(n + 1)th$

$Q_1 = \frac{1}{4}(20 + 1)th$

$Q_1 = \frac{1}{4}(21)th$

Remove bracket

$Q_1 = 5.25th$

This means that:

$Q_1$ is the mean of 5th and 6th item

From the given data:

$5th \to 16$

$6th \to 17$

So, we have:

$Q_1 = \frac{1}{2}(16 + 17)$

$Q_1 = \frac{1}{2}(33)$

$Q_1 = 16.5$

$Q_1 = 16.25$

Calculate $Q_3$

$Q_3 = \frac{3}{4}(n + 1)th$

$Q_3 = \frac{3}{4}(20 + 1)th$

$Q_3 = \frac{3}{4}(21)th$

Remove bracket

$Q_3 = 15.75th$

This means that:

$Q_3$ is the mean of 15th and 16th item

From the data:

$15th \to 24$

$16th \to 26$

So:

$Q_3 = \frac{1}{2}(24 + 26)$

$Q_3 = \frac{1}{2}(50)$

$Q_3 = 25$

Recall that:

$IQR = Q_3 - Q_1$

$IQR = 25 -16.5$

$IQR = 8.5$

7 0

3 years ago