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3 years ago

4m - 9= 31 I can’t remember how to work this out. Can someone help?

Mathematics

2 answers:

Schach [20]3 years ago

8 0

Answer:

4m - 9 = 31 4m= 40 because m=10 10 times 4 = 40

Step-by-step explanation:

lianna [129]3 years ago

5 0

Answer:

Step-by-step explanation:

4m=40

m=10

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The graphs of three functions are shown.

satela [25.4K]

Answer:

The square root and quadratic function share a y-intercept.
The range of the square root and absolute value function are the same.

Step-by-step explanation:

Y-intercepts are the same when the curves meet the y-axis at the same point. That is true of the root and quadratic functions.

X-intercepts are the same when the curves meet the x-axis at the same point. None of these functions share an x-intercept.

The ranges of the functions are the same when they have the same vertical extent. The range of the quadratic is different from the range of the other two functions.

The absolute value and root functions have the same minimum (lower end of their range). That is the same as the maximum of the quadratic function.

The statements that match the graphs are ...

The square root and quadratic function share a y-intercept.
The range of the square root and absolute value function are the same.

7 0

3 years ago

Read 2 more answers

What is the reason for Statement 5 of the two-column proof?

zmey [24]

Given: ∠JNL and ∠MNK are vertical angles and m∠MNK=90°

Prove: ∠JNL is a right angle.

Statements Reasons

1. ∠JNL and ∠MNK are vertical angles. Given

2. $\angle JNL \cong \angle MNK$ Vertical angle theorem

3. $m \angle JNL = m \angle MNK$ Angle congruence postulate

4. $m \angle MNK = 90^\circ$ Given

5. $m \angle JNL = 90^\circ$ <u> Substitution Property of Equality</u>

Since, the measures of angle JNL and MNK are equal and the measure of angle MNK is 90 degrees. therefore, by substitution property of equality, both the angles JNL and MNK will have an equal measure.

Therefore, $m \angle JNL = 90^\circ$

6. ∠JNL is a right angle. Definition of right angle

8 0

3 years ago

Read 2 more answers

A license plate consists of 2 letters followed by 3 digits. How many license plates are possible if the 1st digit cannot be 0, a

zloy xaker [14]

There are 608400 plates are possible.

If the first is A, we have 26 possibilities:

AA, AB, AC,AD,AE ...................................... AW, AX, AY, AZ.

If the first is B, we have 26 possibilities:

BA, BB, BC, BD, BE .........................................BW, BX,BY,BZ

And so on for every letter of the alphabet.

There are 26 choices for the first letter and 26 choices for the second letter. The number of different combinations of 2 letters is:

26×26=676

The same applies for the three digits.

There are 9 choices for the first as first digit cannot be 0

10 for the second,

10 for the third

9×10×10=900

So for a license plate which has 2 letters and 3 digits, there are:

676 × 900 = 608400 possibilities

To learn more about calculating possibilities from the given link

brainly.com/question/4658834

#SPJ4

8 0

2 years ago

(t^-4)^-9t^2 <br><br> A)t^26<br> B)t^-26<br> C)t^38<br> D)t^-38

Arisa [49]

The relevant rules of exponents are
.. (t^a)^b = t^(a·b)
.. t^a·t^b = t^(a+b)

You have
.. (t^-4)^-9·t^2
.. = t^((-4)*(-9) +2)
.. = t^38 . . . . . . . . . . . selection C

4 0

3 years ago

Evaluate the expressions

likoan [24]

<h3>Answer:</h3>

1. x + 20

2. 0

3. 2x - 8

4. 95x + 10

5. -9x - 6

6. 4x + y - 5

7. -x + 6y + 5

8. x + y - 15

9. x + 4y + 4

<h3>Step-by-step explanation:</h3>

• When working with variables and numbers, you have to put the variables first (in alphabetical order) and then the numbers.

• To evaluate an algebraic expression, we find the value of the expression when the variable is replaced by a given number.

• To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.

• When we are not given a number for the variable in the expression, we have to group like-terms.

<u>Example:</u> 5x + 6 + 3x - 2 - y

1st: group 5x and 3x (add the terms together) = 8x
2nd: group 6 and -2 (add the terms together) = 4
3rd: Since -y has no like-terms, we can't group it = -y
Fourth, put the terms in order (variables = alphabetical order and then numbers) = 8x - y + 4

1. 4x + 12 - 3x + 8

4x - 3x = 1x = x
12 + 8 = 20
x + 20

2. -8x + 1 + 2x - 1 + 6x

-8x + 2x + 6x = -8x + 8x = 0
1 - 1 = 0
0

3. 4x - 3 - 2x - 5

4x - 2x = 2x
-3 - 5 = -8
2x - 8

4. 100x + 5 - 5x + 5

100x - 5x = 95x
5 + 5 = 10
95x + 10

5. -4x - 4 - 2 - 5x

-4x - 5x = -9x
-4 - 2 = -6
-9x - 6

6. 2x - 1 + 2x - 4 + y

2x + 2x = 4x
-1 - 4 = -5
4x + y - 5

7. 5y - x + 2y - y + 5

5y + 2y - y = 5y + 1y = 6y
-x + 6y + 5

8. -15 + 3y - 3x - 2y + 4x

3y - 2y = 1y = y
-3x + 4x = 1x = x
x + y - 15

9. 4 - 3y + 3x - 2x - y

-3y - y = 4y
3x - 2x = 1x = x
x + 4y + 4

Hope I helped you, if I did can you please mark me the Brainliest?

4 0

3 years ago