What is a+4=11? please help

Mathematics

2 answers:

Mashutka [201]4 years ago

3 0

Answer:

A = 7

Step by step:

11 - 4 = 7

So,

7 + 4 = 11

Hope this helps!!!

Please be kind to mark Brainliest.☺

Kipish [7]4 years ago

3 0

Answer:

Step-by-step explanation:

a+4=11

a=11-4

a=7

You might be interested in

1^2 + 2^2 + 3^2 +.... + 28^2 + 29^2 + 30^2 = ...... Find the value Thank you!

liberstina [14]

Step-by-step explanation:

The sum of consecutive squares is

$1^2+2^2+\dots+n^2=\frac16n(n+1)(2n+1)$

Therefore

$1^2+2^2+\dots+30^2=\frac16(30)(31+1)(2\cdot30+1) = 9455$

8 0

3 years ago

Prove tan(θ / 2) = sin θ / (1 + cos θ) for θ in quadrant 1 .

Leona [35]

We are asked to prove tan(θ / 2) = sin θ / (1 + cos θ). In this case, tan θ is equal to sin θ / cos θ. we can apply this to the equality. sin θ is equal to square root of (1-cos θ)/2 while cos θ is equal to square root of (1 + cos θ)/2.
Hence, when we replace cos θ with square root of (1-cos θ)/2, we can prove already.

3 0

3 years ago

Read 2 more answers

The Greater Pittsburgh Area Chamber of Commerce wants to estimate the mean time workers who are employed in the downtown area sp

Valentin [98]

Answer:

98% Confidence interval: (31.74,38.4)

Step-by-step explanation:

We are given the following data set:

29, 38, 38, 33, 38, 21, 45, 34, 40, 37, 37, 42, 30, 29, 35

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$