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Advocard [28]
4 years ago
10

Can someone please help me

Mathematics
1 answer:
aivan3 [116]4 years ago
3 0
When you add a negative, it’s basically subtracting.
25. -3 - 4 - 1 = -8
26. 12 - 5 + 3 = 10
27. 10 - 7 + 6 = 9
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I need help with this please<br><br> f(x) = x^2 - 5x - 1
White raven [17]

Answer:

Therefore the answer is 7

5 0
4 years ago
a) work out the value of 4^3-5^2 b) work out the value of 6^2+3^3​
Dmitriy789 [7]

The answer of the given questions

a) 39 and b) 63

Step-by-step explanation:

Here are the solutions of given questions

a) 4^{3} -5^{2}

=64-25

=39

b) 6^{2} +3^{3}

= 36+27

= 63

5 0
3 years ago
Read 2 more answers
Robert and his coworkers brought 11 work trucks to a service station for oil changes. While there they also put 6 gallons of gas
Free_Kalibri [48]

Answer:

The cost of an oil change for 1 truck was $42

Step-by-step explanation:

Let

x -----> the cost of an oil change for 1 truck

y -----> the cost of gas for 1 truck

z ----> the total bill

we know that

z=11[x+y]

we have

z=\$694.32

y=(6)(3.52)=\$21.12

substitute and solve for x

694.32=11[x+21.12]

x=(694.32/11)-21.12

x=\$42

7 0
3 years ago
Assume a recent sociological report states that university students drink 5.70 alcoholic drinks per week on average, with a stan
Triss [41]

Answer:

Mean= 5.70

Standard deviation= 0.132

Step-by-step explanation:

For the distribution of sample mean:

Mean of the sampling distrubution = \mu = 5.70

Standard deviation of the sampling distrubution = sigma/sqrt{n} = 1.7201 /sqrt{170} = 0.132

5 0
3 years ago
A tiling company completes two jobs. The first job has $1200 in labor expenses for 40 hours worked, while the second job has $15
artcher [175]
The closest i can think of that makes since is 1560=30(52)+b, mainly because
30 x 52 = 1560 so that's what i think it is and if im wrong sry.
3 0
3 years ago
Read 2 more answers
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