All categories

2 years ago

Help its pre-pre

Mathematics

2 answers:

grin007 [14]2 years ago

8 0

Sum of all angles of a triangle = 180°

Let the third angle be x.

So, 18.6° + 113.4° + x = 180°

=> 132° + x = 180°

=> x = 180° - 132°

=> x = 48°

So, the third angle is 48°.

mamaluj [8]2 years ago

5 0

Step-by-step explanation:

<h3>sum of all Δangle of a triangle = 180°</h3><h3>so, let 3rd angle be x</h3><h3>18.6° + 113.4° + x = 180°</h3><h3>132° + x = 180°</h3><h3>x = 180° - 132°</h3><h3>x = 48°</h3>

<h2>MARK ME AS BRAINLIST</h2>

You might be interested in

Is area a function of the radius ? Is radius a function of area?

Mnenie [13.5K]

Answer: The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2.

Step-by-step explanation: google help

4 0

2 years ago

As a store manger you would like to find out the average time it takes to unload the truck which delivers the merchandise for yo

Georgia [21]

Answer:

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

Step-by-step explanation:

We have the standard deviation for the sample, but not for the population, so we use the students t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 35 - 1 = 35

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 34 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.9}{2} = 0.975([tex]t_{975}$ ). So we have T = 2.0322

The margin of error is:

M = T*s = 2.0322*30 = 60.97

The upper end of the interval is the sample mean added to M. So it is 204 + 60.97 = 264.97

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

4 0

3 years ago

Read 2 more answers

7^2•3^2+(1+2)^0•3-4^2•1

Kamila [148]

7^2•3^2+(1+2)^0•3-4^2•1
= 49•9 + 1•3 - 16•1
= 441 + 3 - 16
= 428

6 0

2 years ago

Please help me... What is the value of X? .

rusak2 [61]

X = 46
because "the c shape" has angles that add up to 180
180-134 = 46

5 0

2 years ago

A container holds 9 red markers, 13 blue markers, and 17 green markers. You will randomly select two markers without replacement

IRISSAK [1]

Answer:

R-------8/38--------RR

R------9/39--------B-------13/38-------RB

G------17/38--------RG

R-------9/38--------BR

B--------13/39------B-------12/38-------BB

G-------17/38-------BG

R-----9/38--------GR

G---------17/39-------B------13/38-------GB

G------16/38-------GG

b).

9 ways
ways you can select 1 blue are; RB,BR,BG,GB

RB=9/39 × 13/38=3/38

BR= 13/39 × 9/38 =3/38

BG= 13/39 × 17/38=17/114

GB= 17/39 × 13/38=17/114

=3/38 +3/38+17/114+ 17/114 =26/57

Probability of selecting 2 red markers= RR = 9/39 × 8/38 =12/247

Probability of selecting a green marker and then a red marker= GR= 17/39×9/38 =51/494

8 0

3 years ago