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hjlf
3 years ago
10

Evaluate the numerical expression 30-(9×2)-(3×4) how to show the work

Mathematics
2 answers:
Delicious77 [7]3 years ago
7 0
PEMDSA 
(9 X 2) =18
(3 X 4) = 12
30-18-12 = 0
DedPeter [7]3 years ago
5 0
(3x4) answer 12 (9x2) answer 18 18-12 answer 6 30-6 answer 24
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For the given expression, which whole number (w) will make the expression true? 5/6
Sonja [21]

Answer:

D. 7

Step-by-step explanation:

The question is incomplete. Here is a possible complete question

For the given expression, which whole number (w) will make the expression true? 5/6 < w/6

A. 3

B. 4

C. 5

D. 7

Given the inequality expression:

5/6 < w/6

Cross multiply

5×6 < 6×w

30<6w

Divide both sides by 6

30/6 = 6w/6

5<w

Reciprocate both sides(this will change the sense of the inequality)

1/5>1/w

Cross multiply

w > 5×1

w>5

This shows that the value of w is a value greater than 5 but not 5. According to the option, the only value greater than 5 is 7. Hence the whole number (w) that will make the expression true is 7

7 0
3 years ago
F(x)= x+4; D: {-5, -3, 0, 4}
Vika [28.1K]

Step-by-step explanation:

-5+4=-1

-3+4=1

0+4=4

4+4=8

6 0
3 years ago
Find the equation of the line that is perpendicular to y=5 through the point (-4,-6)
Nikolay [14]

Answer:

x=-4

Step-by-step explanation:

we know that

The given equation y=5 is a horizontal line (is parallel to the x-axis)

The slope of the given line is equal to zero

A perpendicular line to the given line is a vertical line (parallel to the y-axis)

so

The equation of a vertical line is equal to the x-coordinate of the point that passes through it

The point that passes through it is (-4,-6)

therefore

The equation of the perpendicular line is

x=-4

4 0
3 years ago
What is -4-(-12)? I don't know if you add them or subtract.
algol [13]
You subtract negative 4 and negative 12...think in a number line and you find negative 4 and then you decrease( which means you move to your left of the number line) and find negative 12 and then you count the spaces you took to get to negative 12
7 0
3 years ago
A Fulcrum of a Pyramid is 6cm Square at the
Len [333]

Answer:

288 cubic cm

Step-by-step explanation:

Volume of the pyramid = 1/3 * base area * height

Base area = 12 * 12

Base area - 144 sq. cm

Height = 6cm

Volume of the pyramid = 144 * 6/3

Volume of the pyramid = 144 * 2

Volume of the pyramid  = 288 cubic cm

4 0
3 years ago
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