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Kay [80]
3 years ago
12

I Need Help!!!!

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0

Answer:

6^27

Step-by-step explanation:

To answer this, we are going to use one of the laws of indices

We have this as;

(a^b)^c = a^(b * c) = a^bc

we are going to apply same here

(6^-3)^-9 = 6^(-3 * -9) = 6^27

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Help me please with this
Paha777 [63]
11) 2x+6y-3; x=5,y=4
the question is asking to evaluate for y when x=5 and evaluate for x when y=4,

2x+6y-3
2x+6y=3

2(5)+6y=3
10+6y=3
6y=3-10
y=-7/6 when x=5

2x+6(4)=3
2x+24=3
2x=3-24
x=-21/2 when y=4

12)
Input Output
N 4(n+3)
12 4(12+3) = 4(15)=60
14 4(14+3)=4(17)=68
18 4(18+3)=4(21)=84
25 4(25+3)=4(28)=112

13)8x+y-10; x=4, y=50
8x+y=10
8(4)+y=10
32+y=10
y=10-32
y=-22 when x=4

8x+50=10
8x=10-50
8x=-40
x=-40/8
×=-5/1=-5 when y=50

14) b is correct

15)c is correct

16) c is correct

If you need explanations on these questions, message me.
8 0
3 years ago
as part of his workout Jamal does two sets of 25 push-ups. if he does this 10 times each month, how many push ups does he do eac
Art [367]
This is the equation 25x2x10=500
8 0
4 years ago
Read 2 more answers
A pilot flies a plane due west from 150 miles, then turns 42 degrees north of west for 70 miles. Find the planes resultant dista
maksim [4K]
This can be solve using cosine lawbut first let as solve the included angle in the triangle form
angle = 180 - 42angle = 138
c^2 = a^2 + b^2 - 2ab(cos angle)c^2 = 150^2 + 70^2 - 2(150)(70)cos(138)C^2 = 43006.04c = sqrt(43006.04)c = 207.37 mile
directionsin (x) / 70 = sin (138)/ 207.37sin x = 0.2259x = arcsin(0.2259)x = 13.05 degree north of west
6 0
4 years ago
Help and show workings out I will give your brainlest
maksim [4K]

Answer:

87.5 ml tube of toothpaste slightly offers the better value of money.

Step-by-step explanation:

In order to know the better value of money, we need to find the volume of each toothpaste for 1p.

For first tube of toothpaste:

87.5 ml costs 49p

Therefore, for 1 p = 87.5/49 = 1.78571429 = 1.8 ml

For second tube of toothpaste:

125 ml costs 72 p

Therefore, for 1 p = 125/72 = 1.73611111 = 1.7 ml

Since, 1.8 ml > 1.7 ml

So, 87.5 ml tube of toothpaste slightly offers the better value of money.

8 0
3 years ago
Which facts could be applied to simplify this expression? Check all that apply.
lisov135 [29]

The answer is B, C, and D. Like terms are terms with all the same variable, so 5x and -x are like terms.

C is correct. If we add -x to 5x, we get 4x. The other numbers remain unchanged because they have no like terms.

D is correct. Applying the rule of like terms, which is that like terms are numbers with the same variable, only add together numbers with the same variable.

stay safe!! wash ur hands and wear a mask :D

3 0
3 years ago
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