2 years ago

Please , answer this question:(

Mathematics

1 answer:

JulsSmile [24]2 years ago

8 0

Answer:

Step-by-step explanation:

<h2>To find algebraic expression, you need to look at the paragraph</h2>

<h2>Cost of 1 gift card of music : $50</h2><h2>Cost of each song : s dollars</h2>

<h2>We have to multiply 50 by s dollars.</h2>

You might be interested in

What is the GCF of 11ab + 32ab ?

Diano4ka-milaya [45]

The GCF is of 11ab +32ab is 43ab

6 0

2 years ago

Abby counts 12 large boxes and 18 small boxes of pencils in the supply cabinet. Each large box contains 144 pencils. Each small

Maru [420]

The total number of pencils is 2,160. When estimating to the nearest hundredth one gets 2,200, which is an underestimate.

The advantage of underestimating is that your answer is more accurate than an overestimate.

3 0

3 years ago

Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 5

Harman [31]

Answer:

μ =2.23

$\sigma_x^2= 1.49$

$\sigma_x=1.22$

Step-by-step explanation:

Radio(x) weeks P(x)

0 5 5/100 = 0.05

1 27 27/100=0.27

2 27 27/100 = 0.27

3 27 27/100 = 0.27

4 9 9/100=0.09

5 5 5/100=0.05

We know that

Mean ,μ

$\mu =\sum x.P(x)$

μ = 0 x 0.05 + 1 x 0.27 + 2 x 0.27 + 3 x 0.27 + 4 x 0 .09 + 5 x 0.05

μ =2.23

$\sigma_x^2= \sum x^2\times P(x)-(\sum x.P(x))^2$

$\sigma_x^2= 0^2\times 0.05+ 1^2\times 0.27+ 2^2\times 0.27+ 3^2\times 0.27+ 4^2\times 0.09+5^2\times 0.05-2.23^2$

$\sigma_x^2= 1.49$

$\sigma_x= \sqrt{\sigma_x^2}$

$\sigma_x=1.22$

7 0

3 years ago

Drag each expression to show whether it is equivalent to 36 + 9, 9(4 – 1), or (4 • 9) + (4 • 2).

Natali [406]

Answer:

36x + 9 equivalent to 9(4x + 1)

9(4x - 1) equivalent to (3 . 12x) - (3.3)

(4.9x) + (4 . 2) equivalent to 36x + 8

3 0

2 years ago

One of the angles of a right angled triangle is 52°. Find the other acute angle.

uysha [10]

Answer:

Step-by-step explanation:

total angle of a triangle=180

52+90+x=180

x=180-(90+52)

x=180-142

x=38

7 0

3 years ago