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spin [16.1K]
3 years ago
5

It's PEMDAS please help

Mathematics
2 answers:
lapo4ka [179]3 years ago
8 0

Hello there,

15 - 20 / 2 • 4 + 20

15 - 10 • 4 + 20

15 - 40 + 20

-25 + 20

-5

Answer: -5

Hope I helped!

- Rose.

kicyunya [14]3 years ago
3 0

Answer:

A -5

Step-by-step explanation:

multiply and divide (left to right) = 20 / 2 x 4

Add and subtract (left to right) = -5

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Let h(x)=505.5+8e−0.9x . What is h(5) ? rounded to the nearest tenth. any help would be great
Naddik [55]
For this case, the first thing we are going to do is rewrite the function.
 We have then:
 h (x) = 505.5 + 8 * exp (-0.9 * x)
 We evaluate the value of x = 5 in the function.
 We have then:
 h (5) = 505.5 + 8 * exp (-0.9 * 5)
 h (5) = 505.588872
 round to the nearest tenth:
 h (5) = 505.6
 Answer:
 
the value of h (5) is:
 
h (5) = 505.6
3 0
3 years ago
Read 2 more answers
Whats 7 times 8 divided by 2 i think the answer s 6 am i right or ring please tell me
slamgirl [31]

Answer:

<h2><em><u>28</u></em></h2>

Step-by-step explanation:

<em><u>First</u></em><em><u>,</u></em>

7 times 8 = 7 × 8 = 56

<em><u>Then</u></em><em><u>,</u></em>

The product divided by 2 = 56 ÷ 2 = 28

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>The</u></em><em><u> </u></em><em><u>required</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>28</u></em>

5 0
2 years ago
a Textbook weighs 2.5 pounds. how many kilograms does the textbook weigh? round your answer to the nearest tenth of a pound. one
Rzqust [24]
If you round it to the nearest pound it is 1.1 kg
2.5/2.2 = 1.13....
3 0
3 years ago
Read 2 more answers
Write down the nth term of the sequence 5, 8, 13, 20, 29
amid [387]
Hello! To find any number in the arithmetic sequence we can use a formula!

It is given by  a_n =a_1+(n-1)d


The geometric sequence formula goes by S_n =  \frac{a_1(1-r^n)}{1-r}

So for this we notice that there's a start of 5 and is being added 3 to get 8.

and then each time it is added by 2 more to get the next time

5
5+ 3 = 8
8 + 5 = 13
13 + 7 = 20
20 + 9 = 29
29 + 11 = 41
41 + 13 = 54
54 + 15 = 69 
69 + 17 = 83

Your formula is a_n = (n-1)^2 + 4&#10;&#10;
Where n starts at 2 not 1

8 0
2 years ago
HURRY I NEED HELP!!!!!!!!!!!!! A circle is drawn within a square as shown.
Anton [14]
The width of the square is 7 cm. This is also the diameter of the circle.

To find the area of the square, you do 7², which is 49 cm². 

To find the area of a circle, you do πr².

The radius is half the diameter, so it's 7 ÷ 2, which is 3.5 cm.

π3.5² ≈ 38.4845100065 cm².

The shaded region is the area of the square minus the area of the circle.  

49 - 38.4845100065 = <span>10.5154899935, but because you're using 3.14 to approximate pi, the closest answer is 10.54 cm</span>².

The answer is 10.54 cm².
3 0
3 years ago
Read 2 more answers
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