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1 year ago

Estimate 19% of 44. 8 9.5 10 9

Mathematics

2 answers:

Temka [501]1 year ago

7 0

The answer is 7.6 so the closest estimate would be 8. 8 is the answer

makvit [3.9K]1 year ago

3 0

ANSWER: 8.36

so it’s either 9 if you round up
or 8 if you round down

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I think it's a-b squared.

klemol [59]

It will have a root a -

7 0

3 years ago

Name the following polynomial: 7n3 + 10n4 + 3n

RSB [31]

Answer: 10n4+7n3+3n

Step-by-step explanation:

8 0

2 years ago

Find the constant of proportionality k. Then write an equation for the relationship between x and y

ExtremeBDS [4]

Question:

Find the constant of proportionality k. Then write an equation for the relationship between x and y

$\begin{array}{ccccc}x & {2} & {4} & {6} & {8} \ \\ y & {10} & {20} & {30} & {40} \ \ \end{array}$

Answer:

(a) $k = 5$

(b) $y = 5x$

Step-by-step explanation:

Given

$\begin{array}{ccccc}x & {2} & {4} & {6} & {8} \ \\ y & {10} & {20} & {30} & {40} \ \ \end{array}$

Solving (a): The constant of proportionality:

Pick any two corresponding x and y values

$(x_1,y_1) = (2,10)$

$(x_2,y_2) = (6,30)$

The constant of proportionality k is:

$k = \frac{y_2 - y_1}{x_2 - x_1}$

$k = \frac{30-10}{6-2}$

$k = \frac{20}{4}$

$k = 5$

Solving (b): The equation

In (a), we have:

$(x_1,y_1) = (2,10)$

k can also be expressed as:

$k = \frac{y- y_1}{x- x_1}$

Substitute values for x1, y1 and k

$5 = \frac{y- 10}{x- 2}$

Cross multiply:

$y - 10 = 5(x - 2)$

Open bracket

$y - 10 = 5x - 10$

Add 10 to both sides

$y - 10 +10= 5x - 10+10$

$y = 5x$

6 0

3 years ago

Solve for w.<br> -4 = w - 6

Lelechka [254]

-4=w-6
-4+6=w
2=w

Therefore, w equals 2.

3 0

2 years ago

Read 2 more answers

Graph the function f(x) = -3/5x+8.

emmasim [6.3K]

Answer:

The y-intercept is at (0,8), so you can graph that point. Then the slope is -3/5. So the change in y coordinate divide the change in x coordinate is always -3/5. Thus 8-y/0-x=-3/5. You can choose any value for y and x as long as 8-y=-3. And 0-x=5. The point on the graph will just be (x,y) for the values you find.

6 0

2 years ago