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ICE Princess25 [194]
3 years ago
7

Select the correct answer.

Mathematics
1 answer:
snow_tiger [21]3 years ago
5 0
* i made the numbers negative because we’re in the third quadrant * answer is c

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PLEASE HELP MEEE!!! :c
ad-work [718]

Answer:21

Step-by-step explanation:

The kid makes 7 dollars an hour.

7*2=14

7*3=21

7*5=35

5 0
3 years ago
Read 2 more answers
Please help with number 5?
Flauer [41]
Unsure how your teacher wants the table to be filled out, but the solution is about 1.62.

x = 1.75, f(x) =1.0625, g(x) =.75 \\  \\ 
x = 1.64, f(x) =.6896, g(x) =.64 \\  \\ 
x = 1.63, f(x) =.6569, g(x) =.63 \\  \\ 
x = 1.62, f(x) =.6244, g(x) = .62 \\  \\ 
x = 1.61, f(x) = .5921, g(x) = .61
8 0
3 years ago
The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertent
drek231 [11]

Answer:

Hello your question is incomplete attached below is the complete question

answer :  1596 ± 2.861 \sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } } ------  ( A )

Step-by-step explanation:

I will use excel function to resolve this question

<u>Determine the 99% confidence of interval for the difference in mean  number of steps by all people</u>

∝ = 0.01

critical value ( t ) = 2.861  ( = TINV ( 0.01, 19 )

Given that :

S1 = 1580

S2 = 2350

n1 = 20

n2 = 20

Difference in mean = x1 - x2 = 1596

Margin of Error = t * \sqrt{\frac{S^2_{1} }{n_{1} } +\frac{s^2_{2} }{n_{2} } }

∴  99% confidence of interval

= 1596 ± 2.861 \sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } } ------

8 0
3 years ago
Select the system that has the same solution as -2x+2y=-5 5x- 6y =8
stiks02 [169]

Answer:

-2x+2y=-5 is equal to x=y+ 5 /2

5x- 6y =8 is equal to x= 6 /5 y+ 8 /5

Step-by-step explanation:

5 0
3 years ago
Factorise<br><br>4(a+b) - 6(a+b)²​
lawyer [7]

Good morning ☕️

Answer:

2(a+b)(2 - 3a - 3b)

Step-by-step explanation:

4(a+b) - 6(a+b)²​  

here we need to find the common factor between 4(a+b) and 6(a+b)²​

4(a+b) = 2×[2(a+b)]

6(a+b)²​ = 2×3×(a+b)×(a+b) = 3(a+b)×[2(a+b)]

then

4(a+b) - 6(a+b)²​  = 2×[2(a+b)] − 3(a+b)×[2(a+b)]

                          = [2(a+b)]×[2 - 3(a+b)]

                         = 2(a+b)×(2 − 3a − 3b)

___________________________________

:)

8 0
3 years ago
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