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3 years ago

If a math problem asks you about how much something is for division , will the problem make you estimate?

Mathematics

1 answer:

postnew [5]3 years ago

8 0

Answer:

Yes

I hope this answers your question!

Step-by-step explanation:

How do you estimate a division problem?

You can use multiplication to check your division answer this way.

1) Do the division problem.

2) Multiply the quotient times the divisor.

3) If there is a remainder, add it to the multiplication product.

4) Compare this answer to the dividend. They should be the same number (630 = 630).

You might be interested in

Average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

11111nata11111 [884]

The average rate of change is the slope of the secant line connecting the points on f(x) from x=-5 to x=10.

In other words, it is just the slope of the straight line connecting the points
$(-5,f(-5)) \: and \: (10,f(10))$

So we were given ,

$f(x) = {x}^{2} - 3x - 10$

At
$x = - 5$
$f( - 5) = {( -5 )}^{2} - 3( - 5) - 10$
$f( - 5) = 25 + 15- 10$
$f( - 5) = 30$

Also at
$x = 10$
$f( 10) = {( 10)}^{2} - 3( 10) - 10.$
$f( 10) = 100- 30 - 10$
$f( 10) = 60$

The average rate of change
$= \frac{f(10) - f( - 5)}{10 - - 5}$
$= \frac{60- 30}{15}$
$= \frac{30}{15}$
$= 2$

3 0

3 years ago

A line goes throught the points (0,-9) and (-9,-72)<br><br>what is the slope of the line?

Vladimir [108]

To find the slope(m) of the line, you use the slope formula:

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

And you plug in the points into the equation.

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m = \frac{-72-(-9)}{-9-0}$

$m = \frac{-72+9}{-9-0}$

$m = \frac{-63}{-9}$

m = 7

5 0

3 years ago

Read 2 more answers

3. Express the following algebraic expressions in standard form.

frosja888 [35]

Answer:

x^2+5x-14=0

Step-by-step explanation:

(x+7)(x-2)=0

x (x-2)+7 (x-2)=0

x^2-2x+7x-14=0

x^2+5x-14=0

5 0

3 years ago

I really need help with this trigonometry problem, can someone please help me

mr_godi [17]

Not sure if you wanted the exact value or the degrees. Here’s both:

1: sin pi/3 = 60° or sqrt of 3 over 2

2: cos 2pi/3 = 120° or -1/2

3: tan 7pi/4 = 315° or -1

4: tan 5pi/6 = 150° or -sqrt of 3 over 3

5: sin 7pi/6 = 210° or -1/2

6: cos 11pi/6 = 330° or square rt of 3 over 2

Formula I used:
Problem (example: 11pi/6) times 180° over pi.

8 0

3 years ago

Which of the following is a solution of 4x2 = − 9x − 4?

Arte-miy333 [17]

Step-by-step explanation:

4x2=−9x−4

Step 1: Subtract -9x-4 from both sides.

4x2−(−9x−4)=−9x−4−(−9x−4)

4x2+9x+4=0

For this equation: a=4, b=9, c=4

4x2+9x+4=0

Step 2: Use quadratic formula with a=4, b=9, c=4.

−b±√b2−4ac

−(9)±√(9)2−4(4)(4)

2(4)

−9±√17

−9

√17 or x=

−9

−1

√17

8 0

4 years ago