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Viefleur [7K]
2 years ago
15

Question 7. evaluate the expression

Mathematics
2 answers:
Simora [160]2 years ago
6 0

Answer:

<u>-3</u>

Step-by-step explanation:

<u>Using PEMDAS</u> :

  1. Parentheses
  2. Exponents
  3. Multiplication
  4. Division
  5. Addition
  6. Subtraction

<u>Exponent (in Parentheses)</u>

  • (3³ - 6 × 8) ÷ 7
  • (27 - 6 × 8) ÷ 7

<u>Multiplication (in Parentheses)</u>

  • (27 - 6 × 8) ÷ 7
  • (27 - 48) ÷ 7

<u>Subtraction (In Parentheses)</u>

  • (27 - 48) ÷ 7
  • -21 ÷ 7

<u>Division</u>

  • -21 ÷ 7
  • <u>-3</u>
AlladinOne [14]2 years ago
4 0

\left(3^3 - 6 \cdot 8 \right) \div 7\\\\\\= \dfrac{27-48}{7}\\\\\\=-\dfrac{21}7\\\\\\=-3\\

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I need help with this question please and thank you
stiv31 [10]

Answer:

13 cups

Step-by-step explanation:

1.5 pint=  3 cups

8 fluid ounces = 1 cup

4 bottles of milk with 1.5 pint each= 3x 4= 12 cup

8 fluid ounces of strawberry syrup= 1 cup

12+1=13 cups

4 0
3 years ago
*GEOMETRY*please help me find the surface area of the solid along with the volume of it step by step!
Serjik [45]

Surface area of the solid = 7.1781 in²

Volume of the solid = 0.804 in³

Explanation:

Surface area of the solid = surface area of the square prism - 2(base of the cylinder) + lateral surface of cylinder

surface area of a square prism = 2(lw + lh + wh)

l = length = 1 in

w = length = 1 in

h = height = 1 in

\begin{gathered} \text{Surface area = 2(1}\times1\text{ + 1}\times1\text{ + 1}\times1) \\ \text{Surface area = 2(1 + 1 + 1) = 2(3)} \\ \text{Surface area = 6 in }^2 \end{gathered}

using the value π as it is on the calculator

Base area of a cylinder = πr²

2(Base area of cylinder) = 2πr² = 2π(0.25)² = 0.3927

Lateral surface area = 2πrh = 2π(0.25)(1) = 1.5708

Surface area of the solid = 6 - 0.3927 + 1.5708

Surface area of the solid = 7.178 in²

Volume of the solid = Volume of the square prism - volume of the cylinder

Volume of square prism = length × width × height

length = 1 in, width = 1 in, height = 1 in

Volume of the solid = 1 in × 1 in × 1 in = 1 in³

Volume of a cylinder = πr²h

Volume of the cylinder = π × 0.25 × 0.25 × 1 = 0.196

Volume of the solid = 1 - 0.196

Volume of the solid = 0.804 in³

4 0
1 year ago
What is<br> 5/6h-7/12=-3/4h-13/6
alexandr1967 [171]

Answer:

-1

Step-by-step explanation:

3 0
3 years ago
Help question is on the attachment​
miv72 [106K]

Answer:

7/12

Step-by-step explanation:

2x6 =12 for the dinominator the nummarraton is 6 +1 =7

4 0
3 years ago
A car and a girl are 50 miles apart. The girl is traveling at 5 mph and the car is traveling at 45 mph. Will their paths cross?
Temka [501]
It might be about 5 mins
8 0
3 years ago
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