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Oxana [17]
3 years ago
11

What is the value of the expression below?

Mathematics
1 answer:
sergejj [24]3 years ago
4 0

Answer:

  B  15 1/2

Step-by-step explanation:

It evaluates to ...

  7 + 12 -(3 1/2) = 15 1/2 . . . . matches selection B

_____

Your calculator can help you with questions like this.

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Simplify.<br> (-2)^-3<br><br> A.) 8<br><br> B.) 1/8<br><br> C.) -8<br><br> D.) - 1/8
svlad2 [7]

Answer:

D. -1/8

Step-by-step explanation:

3 0
2 years ago
Explain how you can mentally determine whether there is a remainder when 18,450 is divided by 6
scZoUnD [109]
I divided 18450 divide by 6 I got 3,075
5 0
3 years ago
Preston and Horatio have 49 games in total. Horatio has 11 more games than Preston. How many games does Preston have?
xxMikexx [17]
Preston has 38 games cause 11+x=49 x=38
7 0
3 years ago
Hi :) anyone able to teach this? I don’t understand the question , thanks in advance!
puteri [66]

a) 62.855m

We will need to use the Pythagorean Theorem here, as we know a and c, but not b. I have attached an image of a triangle sketch to set up the problem, which should hopefully help us to visualize this problem a bit better.

Pythagorean Theorem: a^2 + b^2 = c^2

(19.8)^2 + b^2 = (65.9)^2

392.04 + b^2 = 4342.81

b^2 = 3950.77

b = 62.855 (rounded to 3 places)

b) m = 0.315

The gradient is also known as the slope. I've shown what the points would be in the image attached. Now that we know the value of b (x in the points in image), we can use points E and C to find the slope.

Point 1: (0,0)

Point 2: (62.855, 19.8)

m = (19.8 - 0) / (62.855 - 0)

m = 19.8 / 62.855

m = 0.315 (rounded to three places)

c) 17.485 degrees

The angle of inclination would be angle C. To find angle C, we will need to use an inverse trigonometry function. Any can be used since we know all of the side lengths, but I will show Sine here, opposite / hypotenuse.

sin(x) = 19.8 / 65.9

x = sin^-1 (19.8/65.9)

x = 17.485 degrees (rounded to 3 places)

Hope this helps!! :)

7 0
3 years ago
Question 3(Multiple Choice Worth 4 points) (06.06) Which of the following demonstrates the Distributive Property? 3(4a + 2) = 12
storchak [24]

Answer:

12a + 6

Step-by-step explanation:

given 3(4a + 2)

multiply each term in the parenthesis by the 3 outside ( distributive law )

= (3 × 4a ) + (3 × 2 ) = 12a + 6


8 0
3 years ago
Read 2 more answers
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