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3 years ago

It will be -12° tonight. The weatherman predicts it will be 25 warmer by noon

Mathematics

1 answer:

frosja888 [35]3 years ago

4 0

Answer:

13⁰

Step-by-step explanation:

to draw it on a number line, write the number -12⁰, then jump forward 25 times which will end you up at 13⁰ since

-12 + 25 = 13⁰

You might be interested in

Is there any number that when added to 0 is negative, and when subtracted by 0 is also negative?

bogdanovich [222]

Answer:

Subtracting with zero: 0 – a = –a. Use the rule for subtracting signed numbers: Change the operation from subtraction to addition and change the sign of the second number. Likewise, a – 0 = a. It doesn’t change the value of a to subtract zero from it.

Step-by-step explanation:

6 0

3 years ago

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A walking path across a park is represented by the equation y= -4x - 6 . A new path will be built perpendicular to this path. Th

frosja888 [35]

Answer:

y=1/4 x +11

Step-by-step explanation:

So this is a word problem but it isn't too bad to figure what they want: They are looking for a line that is perpendicular to y=-4x-6 and goes through (-4,10).

So we are looking for an equation whose slope is the opposite reciprocal of the given equation's slope.

The given equation has a slope of -4

The opposite reciprocal of -4 is 1/4 so that is the slope of our new line.

So we know our equation is in the form of y=1/4 x+b

Now we are given that this line should go through (-4,10) so plug it in to find b.

10=1/4 * (-4)+b

10=-1+b

11=b

So the equation is y=1/4 x+11

3 0

3 years ago

Read 2 more answers

Determine whether each sum, difference, product,

PIT_PIT [208]

Answer:

28. The difference represents an irrational number

29. The difference represents a rational number

30. The quotient represents a rational number

31. The quotient represents an irrational number

Step-by-step explanation:

* Lets explain how to solve the problem

- The rational number is any numbers can be put in the form of a/b,

where a and b are integers b ≠ 0

- Ex: 1 , 2/3 , 5/4 , 22/7 , 100 , ................

- The irrational number is any number that is not rational

- It is a number that cannot be written as a ratio of two integers

or cannot be expressed as a fraction

- Ex: √2 , √7 , π , ..... (π is irrational because it's approximated value)

- If the part of the the number is irrational, then the number

is irrational

- Ex: (5 + √3) , (√7 + 5) , 2√5 , √11/4 , 5/√13

* Lets solve the problems

28. $\frac{6}{23}-\frac{\sqrt{2}}{2}$

∵ √2/2 is an irrational number

∵ One term is an irrational number

∴ The difference represents an irrational number

29. $\frac{6}{23}-\frac{15}{127}$

∵ The two terms are rational numbers

∴ The difference represents a rational number

30. $\frac{6}{23}$ ÷ $\frac{15}{127}$

∵ The two terms are rational numbers

∴ The quotient represents a rational number

31. $\frac{6}{23}$ ÷ $\frac{\sqrt{2}}{2}$

∵ √2/2 is an irrational number

∵ One term is an irrational number

∴ The quotient represents an irrational number

7 0

4 years ago

Make y the subject of the formula

podryga [215]

Answer:

D. $y = \frac{ {x}^{2} - w }{2z}$

Step-by-step explanation:

$w = {x}^{2} - 2yz \\ \\ 2yz = {x}^{2} - w \\ \\ \huge \red{ y = \frac{ {x}^{2} - w }{2z} }$

7 0

3 years ago

Help pls I took a pic<br> A<br> B<br> C<br> D

antoniya [11.8K]

Answer:

B is the correct answer

Step-by-step explanation:

If C=5

then

5/2x5+2 (C=5)

5/10+2

5/12

4 0

3 years ago

Read 2 more answers