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4vir4ik [10]
2 years ago
8

Please help a brother out I will give you brainliest -x-y=1 y=-x+4

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
7 0

Answer:

x=3 y=1

Step-by-step explanation:

-x-y=1

y=-x+4

x=-y-1

x=-y+4

x=-1+4

<u>x=3</u>

y=-3+4

<u>y=1</u>

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The 180 falls between which two whole numbers? A) 11 and 12 B) 12 and 13 C) 13 and 14 D) 14 and 15
Umnica [9.8K]

Answer:

C) 13 and 14

Step-by-step explanation:

To find the answer, we need to check for all the options.

A) 11 and 12 = 11 *12 = 132

B) 12 and 13 = 12 *13 = 156

C) 13 and 14 = 13*14 = 182

D) 14 and 15 = 14*15 = 210

In which, C) is true.

It is 182 which falls in 180's

Therefore, answer is C) 13 and 14

Hope this will helpful.

Thank you.

7 0
3 years ago
Read 2 more answers
the probability tree diagram shows the probabilities that a football team will win their first two games find the probability of
nevsk [136]

Answer:1/2

Step-by-step explanation:

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2 years ago
A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a
erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

H_0 : p=0.8\\H_a: p>0.80

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According to this informaton, we defined that

\alpha=0.05

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So our Rejection region is R={z:z>1.64}

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Not rejection.

6 0
3 years ago
You are charged 6.5% tax on a 42% purchase. Find the amount of tax
Rus_ich [418]
Assuming you means 6.5% tax of a $42 purchase

0.065*42=2.73

tax is $2.73
7 0
3 years ago
If f(x)=−3x2−5x+1 , what is f(3)?
rjkz [21]

Answer:

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Step-by-step explanation:

you put 3 in place of x. So where x is you put 3. Then simplify. Let me know if you need further explanation

7 0
3 years ago
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