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2 years ago

Help, I'm bad at math XD

Mathematics

1 answer:

Rasek [7]2 years ago

8 0

1. x = 28

2. x = 13

3. x = 11

4. x = 50

5. x = 53

6. x = 77

7. x = 5

8. x = 70

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(Brainliest) PLEASE HELPP MEEE

zloy xaker [14]

Answer:

1. According to the angle bisector theorem, DAC = BAC

2. Same kind of goes for BC

3. X must be equal in both equations. x= 3

9(3) -7 = 20

4(3) +8 = 20

Hope this helped!

8 0

2 years ago

The first 5 terms of a sequence are shown below:

nirvana33 [79]

Step-by-step explanation:

To find the formula for the nth term ,

First , find the common difference or common ratio.

Common difference =

$T_2-T_1 \\ - 2 - 3 \\ = - 5$

Common ratio =

$T_2/T_1 \\ \frac{ - 2}{3}$

The common difference applies to the other given numbers for example :

$T_3- T_2 = - 7 - ( - 2) \\ = - 7 + 2 = - 5$

this proves that it is an arithmetic sequence and the given formula for the nth term of an arithmetic sequence is

T_n =a(n-1)d

Where n = no of terms

a= first term

d= common difference

6 0

2 years ago

A grocery store will only accept yellow onions that are at least 2.75 in. In diameter. A grower has a crop of onions with diamet

Paraphin [41]

Answer:

Step-by-step explanation:

Calculate z-score firstly

z-score = (x-mean)/SD = (2.75-2.5)/0.25 = 0.25/0.25 = 1

P( x greater than or equal to 2.75) = P(z greater than or equal to 1)

= 1 - p(z <1)

P(z<1) from table = 0.84134

1-p(z<1) = 0.15866 or 15.866%

4 0

3 years ago

The area of a rectangular carpet is 28 square feet. The length is three feet more then the width. Find the length and the width

Vanyuwa [196]

Length: 7
Width: 4
Hope this helps!!

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2 years ago

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svp [43]

The answers are :
13) 9
14) 200
15) -10
16) -300

17) -276
18) -66

3 0

2 years ago

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