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3 years ago

Explain how estimation helps you place the decimal point when multiplying 3.9 x 5.3?

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

3 0

It helps when you count decimal places to line up the numbers

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PLEASE PLEASE PLEASE HELP 2 COLUMN PROOF

Vika [28.1K]

Answer:

1. Statement: <2 and <5 are supplementary. Reason: Given

2. Reason: Vertical

3. Reason: Consecutive interior angles

4. Statement L is parallel to m. Reason: transversal makes equal angles

Have a good day!

3 0

3 years ago

Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\

Liono4ka [1.6K]

Answer:

The mistake she made was ; She didn't change the sign when subtracting -3/4 from both sides

She wrote 5/4+3/4 instead of 5/4-3/4

Step-by-step explanation:

Correct solution:

$\frac{3}{4} + m = \frac{5}{4}$

Subtract-3/4 from both sides

$\frac{3}{4} - \frac{3}{4} + m = \frac{5}{4} - \frac{3}{4}$

Simplify

$m = \frac{5}{4} - \frac{3}{4} \\ m = \frac{1}{2}$

7 0

3 years ago

Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?

Flauer [41]

Given:

$f=\{(1,2),(2,3),(5,6),(7,8)\}$

To find:

The values of f(2) and f(5).

Solution:

If an ordered pair $(x,y)$ is in the function $f$ , then $f(x)=y$ .

In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get

$f(2)=3$

In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get

$f(5)=6$

Therefore, the value of f(2) is 3 and the value of f(5) is 6.

5 0

2 years ago

19. Determine the midpoint of the line with end points (0,0) and (2,2).

Anika [276]

Answer:

midpoint m= (x1 +x2 , y1 + y2)

2. 2

Step-by-step explanation:

M =(0+2. , 0+2)

2. 2

M=(1,1)

8 0

2 years ago

How do I solve this?

prisoha [69]

$y = - 7 \\ x = 3$

7 0

3 years ago