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Andrej [43]
4 years ago
5

Please help ASAP!!! Thanks! :) (−3)(a+x), if a=8, x=−10

Mathematics
2 answers:
jekas [21]4 years ago
8 0

-3(8-10) subtracting is the same as adding the opposite

-3(-2) multi. Negative times a negative becomes a positive

6

Sergeu [11.5K]4 years ago
7 0

Answer:

Step-by-step explanation:

First we should solve the problems inside the bracket (a+x). Since a=8 and x=-10, (a+x) = (8+(-10)). (8+(-10))= (8-10). Then it is only a matter of subtraction and multiplication. (8-10)=(-2). Now we have clear numbers instead of variables, so (-3)(-2)=+6 (since two brackets with no sign in between will multiply the contents inside each other together.). I hope this was helpful!

TL;DR: (-3)(a+x)=(-3)(8+(-10))=(-3)(8-10)=(-3)(-2)=+6.

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Drag the correct steps into order to solve the equation -61 + 18 = -6 for 2. Will mark Brainless​
rosijanka [135]

Answer:

To solve, we need to isolate the variable

The first step is to subtract 18 from both sides to "reverse" the addition

-6x+18=-6

-6x=-24

The second step is to divide -6 on both sides to "reverse" the multiplication

-6x=-24

x=4

Hope this helps! :)

5 0
3 years ago
2) A girl starts from a point A and walks 285m to B on a bearing of 078°. She then walks due south to a point C which is 307m fr
adelina 88 [10]

Answer:

bearing of A from C is - 65.24°

the distance |BC| is 187.84 m

Step-by-step explanation:

given data

girl walks AB = 285 m (side c)

bearing angle B = 78°

girl walks AC = 307 m (side a)

solution

we use here the Cosine Law for getting side b that is

ac² = ab² + bc² - 2 × ab × cos(B)     ...............1

307² = 285² + x²  - 2 × 285 cos(78)

x = 187.84 m

and

now we get here angle θ , the bearing from A to C get by law of sines

sin (θ) = \frac{187.84}{307} \times sin(78)

sin (θ) =  0.5985  

θ = 36.76°

and as we get here angle BAC that is

angle BCA = 180 - ( 36.76° + 78° )

angle BCA = 65.24°

and here  negative bearing of A from C so - 65.24°

7 0
3 years ago
Classify the real number. (Choose all that apply). –9 A.) Rational B.) Whole C.) Irrational D.) Natural E.) Integer
IRISSAK [1]
Whole numbers are the numbers 0, 1, 2, 3, 4 and so on and negative numbers are not considered whole numbers.

natural numbers are called the counting numbers that are the numbers 1, 2, 3, 4, and so on. they are positive numbers and zero is not considered a natural number as you can see.

integers are all the whole numbers and their opposite (negative) but negative numbers are NOT whole or natural numbers. fractions and decimals are not integers.

rational numbers are numbers that include all the integers, plus all fractions, or terminating decimals and repeating decimals.

irrational numbers are an infinite number of digits to the right of the decimal point, without repeating.


so your answer is integer and rational, hope this helped! :)
6 0
4 years ago
1. Eric has $115 to spend on back to school clothes. So far, he has spent $90. Write an inequality to show how much more money E
xz_007 [3.2K]
Eric can spent $29 for now
5 0
4 years ago
Maybe brainliest IF ITS RIGHT ;)
mars1129 [50]

Answer:

The different one is C, pi times the radius

Step-by-step explanation:

"Different" value is 18.85 and the "same" value is 37.70.

The distance around a circle, circumference and pi times the diameter all finds the same value, but pi time the radius is only half of those values

3 0
3 years ago
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