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liq [111]
3 years ago
7

Explain how you would solve the problem below using PEMDAS. Explain what you would do first, second, third, fourth and so on to

solve. Use your PEMDAS vocabulary and tell us exactly how you would solve this problem.
5 – 4 ÷ 2 + 7
Mathematics
2 answers:
olga2289 [7]3 years ago
8 0
4 divided by 2 =2. 5–2+7. 2+7=9. 5–9= -4
Lera25 [3.4K]3 years ago
6 0
P= Parentheses
E=exponents
M= Multiplication
D= Division
A=Addition
S=Subtraction
you dont have any parentheses, exponents, or multiplication so you start from division
4/2 =2
5-2+7
2+7 = 9
5-9=4
the answer is 4
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The diagram shows a 5 cm x 5 cm x 5 cm cube.
Nitella [24]

Answer:

8.7 cm

Step-by-step explanation:

The question is a 2-two-step Pythagoras theorem. (c^2 = a^2 + b^2)

Consider as such, If I were to draw a diagonal line along the base of the cube what is the length of the diagonal line. To find out that we use the theorem. We can substitute a for 5 and b for 5 as well. So

a^2 +b^2 = c^2

5^2 + 5^2 = c^2

25 + 25 = c^2

√50 = c

Then since the line side of the cube is on a 3d angle we need to do the same process again but now using the imaginary diagonal line that we just calculated and the height (5).

a^2 +b^2 = c^2

√50^2 + 5^2 = c^2

50 + 25 = c^2

√75 = c

c = 8.6602...

<em>when rounded to 1 d.p.</em>

c = 8.7

Line AB is 8.7 cm long.

7 0
3 years ago
PLZ HELPPPPPP!!!!!!!!!​
torisob [31]

Answer:

the answer is B

Step-by-step explanation:

7 0
2 years ago
What is the answer for 25.2÷2.1 using showing my work
lilavasa [31]

Answer:

25.2

Step-by-step explanation:

2.1*12=25.2

use a calculator if you're allowed to show work that way, if not a simple way is

2.1*10=21

2.1*11=23.1

2.1*12 is equal to 2.1*10=21 because 2*12=24 and .1*12=1.2

7 0
3 years ago
Write down the possible values of x
worty [1.4K]

Answer:

-6,

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7 0
2 years ago
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adelina 88 [10]

Answer:

Answer is the first choice.

Step-by-step explanation:

A logarithmic graph is the opposite of an exponential growth graph, so the first option is the only one that fits. Just took the test and the first choice is correct.

6 0
2 years ago
Read 2 more answers
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