Can anyone help me with this math?

Mathematics

2 answers:

Gelneren [198K]2 years ago

5 0

Answer:

126

Step-by-step explanation:

since b is 54 just subtract 54 from 180 to get a as they are in a sttaight line

Brums [2.3K]2 years ago

3 0

Answer:

∠A = 126°

Step-by-step explanation:

Firstly, we can calculate that ∠B is 54° because opposite angles are the same, and a circle is 360° so let subtract these two angles first:

360 - 54 - 54 = 252

Now, ∠A = ∠B so:

252 ÷ 2 = 126

So ∠A = 126°

Another way of calculating this is simply subtracting 54 from 180° as they are both on a straight line and must add up to 180°:

180 - 54 = 126°

Hope this helps!

You might be interested in

The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha

matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

$\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{ = }\frac{710-850}{70} \\ \text{ = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}$ $\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}$

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

5 0

1 year ago

Convert 7-6ths into a mixed number

AlexFokin [52]

11/1.
Hope this helps,
and I hope you have a productive day!

8 0

2 years ago

At a shoe store shoes are 1/3 of the original price the sale price of a pair of shoes is $15.50 write an equation that could be

Soloha48 [4]