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Alexus [3.1K]
3 years ago
6

Evaluate x(–y + z) for x = 3, y = 3, and z = 1.

Mathematics
2 answers:
Nookie1986 [14]3 years ago
8 0

Answer:

3(-3+1)=

3(-2)=

-6

Answer is - 6

Kazeer [188]3 years ago
7 0
The answer is -8. 3 x -3 = -9 + 1 = -8
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X + y - z = - 2, 2x - y + z = 8, - x + 2y + 2z = 10
Maurinko [17]

Answer:

a

Step-by-step explanation:

3 0
2 years ago
On a number​ line, the coordinates of​ X, Y,​ Z, and W are −7​, −2​, 2​, and 7​, respectively. Find the lengths of the two segme
liubo4ka [24]
FIRST WE ...
subtract one value to the other to see how many valued we have in between
-7 - (-2) = 5
7-2=5
Both of the lines XY AND ZW have 5 units or points in between them.
Length = 5 units
They are congruent since XY = ZW in length and essentially are the same line but at different points
3 0
3 years ago
Harmony used discarded paper to make notepads for her friends. She would fold five letter size pieces of paper three times then
Anna11 [10]
First fold of a piece of paper produces two smaller pieces of paper
Second fold of the resulting pieces of paper produces 4 smaller pieces of paper.
Third fold of the resulting pieces of paper produces 8 smaller pieces of paper.

Thus, the five letter size pieces of paper folded three times produces 8 x 5 = 40 notes.

Thus, one notepad consists of 40 notes.

If someone wrote ten notes per day, then one notepad will last for 4 days.
7 0
3 years ago
Read 2 more answers
What is the value of x?
Over [174]

Answer:

c-12

Step-by-step explanation:

Pythagoras theorem states that a²+b²=c²

144+b²=c²

b²=c²-144

b=c-12

b=x

x=c-12

4 0
3 years ago
HELP ASAP WILL MARK BRAINLIEST!!! Add or subtract. Write your answer in scientific notation. 4.2 x 10^6 − 1.2 x 10^5 − 2.5 x 10^
erik [133]

Answer:

see below

Step-by-step explanation:

4.2 x 10^6 − 1.2 x 10^5 − 2.5 x 10^5

All exponent have to have the same number

42 x 10^5 − 1.2 x 10^5 − 2.5 x 10^5

Subtract the number

42 - 1.2 - 2.5 = 38.3

Add back the exponent

38.3 * 10 ^5

This is not in scientific notation

Move the decimal one place to the left and add one to the exponent

3.83 * 10^6

3.3 x 10^9 + 2.6 x 10^9 + 7.7 x 10^8

All exponent have to have the same number

3.3 x 10^9 + 2.6 x 10^9 + .77 x 10^9

Add the numbers

3.3+2.6+.77 =6.67

Add back the exponent

6.67*10^9

This is in scientific notation

8.0 x 10^4 − 3.4 x 10^4 − 1.2 x 10^3

All exponent have to have the same number

8.0 x 10^4 − 3.4 x 10^4 − .12 x 10^4

Subtract

8.0 - 3.4 - .12 = 4.48

Add back the exponent

4.48* 10^4

This is in scientific notation

8 0
3 years ago
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