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weeeeeb [17]
4 years ago
15

Can anybody help me???

Mathematics
2 answers:
marysya [2.9K]4 years ago
6 0

Answer:

Help you with what? their is nothing!

Neko [114]4 years ago
5 0
What can I help u with
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What is the answer to 3 times 126
Leno4ka [110]

Answer:

378

Step-by-step explanation:

3*126

5 0
3 years ago
Read 2 more answers
A local bank needs information concerning the savings account balances of its customers. A random sample of 15 accounts was chec
PSYCHO15rus [73]

Answer:

(513.14, 860.36) is a 98% confidence interval for the true mean

Step-by-step explanation:

We have a small sample size of n = 15, the mean balance was \bar{x} = 686.75 with a standard deviation of s = 256.20. The confidence interval is given by \bar{x}\pm t_{\alpha/2}(\frac{s}{\sqrt{n}}) where t_{\alpha/2} is the 100(\alpha/2)th quantile of the t distribution with n-1=15-1=14 degrees of freedom. As we want a 100(1-\alpha)% = 98% confidence interval, we have that \alpha = 0.02 and the confidence interval is 686.75\pm t_{0.01}(\frac{256.20}{\sqrt{15}}) where t_{0.01} is the 1st quantile of the t distribution with 14 df, i.e., t_{0.01} = -2.6245. Then, we have 686.75\pm (-2.6245)(\frac{256.20}{\sqrt{15}}) and the 98% confidence interval is given by (513.1379, 860.3621)

7 0
4 years ago
Name a pair of adjacent angles. explain why they are adjacent. Name a pair of acute vertical angles. Name a pair of supplementar
Anna71 [15]
The 41° and the 90° are adjacent.  They are adjacent because they are touching each other side by side.  That is the angles SUR and SUT

Angle SUR is acute, because it is 41° and it less than 90°.  Same as angle  PUQ. Angle PUR = Angle SUR, both are vertically opposite, therefore PUR is also 41°. 

Angles TUQ and QUN are both supplementary because they both add up to 180°, which is the straight line TUN.
6 0
3 years ago
3x -(-2-4x)= <br> What does this equals??
sammy [17]

Answer:

7x + 2

Step-by-step explanation:

Original Equation: 3x − ( −2 − 4x)

First, we distribute the negative sign:

= 3x + (−1) (−2−4x)

=3x + (−1)(−2) + (−1)(−4x)

= 3x + 2 + 4x

Using the communitive property of addition, we can write:

= 3x + 4x + 2  (Instead of 3x + 2 + 4x)

Combining like terms, we get:

= (3x + 4x) + 2

= 7x + 2

6 0
3 years ago
Help! Plz!
vovangra [49]

9514 1404 393

Answer:

  • a = m
  • b = n

Step-by-step explanation:

The axes of symmetry are shown and labeled m and n. Reflection across either (or both) axis of symmetry will map the figure to itself. Apparently, you want to designate those reflections as ...

  Ra . . . where a = m

  Rb . . . where b = n

6 0
3 years ago
Read 2 more answers
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