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3 years ago

What is the value of the expression, written in standard form?

Mathematics

2 answers:

kirill [66]3 years ago

3 0

Answer:

Step-by-step explanation:

200? sorry if its wrong

Semmy [17]3 years ago

3 0

200 sorry if it’s wrong

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Write a polynomial that represents the length of the rectangle help please !!

disa [49]

Answer:

$\textsf{Length}=0.8x^2-0.7x+0.7\quad \sf units$

Step-by-step explanation:

Area of a rectangle = width × length

Therefore, to find the length of the rectangle, we need to divide the area by the width.

Using long division:

$\large\begin{array}{r}0.8x^2-0.7x+0.7\phantom{)} \\x+0.5{\overline{\smash{\big)}\,0.8x^3-0.3x^2+0.35x+0.35\phantom{)}}}\\-~\phantom{(}\underline{(0.8x^3+0.4x^2)\phantom{-b))))))))))))))}}\\0-0.7x^2+0.35x+0.35\phantom{)}\\ \underline{-~\phantom{()}(-0.7x^2-0.35x)\phantom{-b)))))}}\\ 0.7x+0.35\phantom{)}\\\underline{-~\phantom{()}(0.7x-0.35)}\\ 0\phantom{)}\end{array}$

Therefore, the length of the rectangle is:

$0.8x^2-0.7x+0.7$

5 0

2 years ago

the original price of a jacket is $68. The sale price is 30% off the original price. what is the amount off the original price?

Semmy [17]

Answer: The original price of the jacket is given in the question and it is $68.

The percent of discount given on the original price is 30%.

Then

The amount of discount given = (68 * 30/100) dollar

= 20.4 dollar

The discount amount is $20.4

Now after the deduction of the sale percentage, the selling price of the jacket can be easily deduced.

Then

Selling price of the jacket = (68 - 20.4) dollars

= 47.6 dollars

Step-by-step explanation:

3 0

3 years ago

In the diagram above <1=135 find the measure of <2

kow [346]

Answer:

∠ 2 = 45°

Step-by-step explanation:

∠ 1 and ∠ 2 are same- side interior angles and are supplementary, thus

∠ 2 = 180° - ∠ 1 = 180° - 135° = 45°

6 0

3 years ago

The scatter plot shows the number of customers in a restaurant for hours of the dinner services on two different Saturday nights

charle [14.2K]

A. The value y-intercept represent in the context of the problem is 50.

B. The slope of the line is -10.

C. The equation to represent the line is y= -10x+50.

D. The number of customers in the restaurant at 8:30pm is 35.

Step-by-step explanation:

The equation of the line is given by y=mx+c.

y is the number of customers and x is the hours.

7.00 p.m. is considered as 0.

To find the slope m = $\frac{rise}{run}.$

$rise = y_{2}-y_{1}$ .

$run = x_{2}-x_{1}$ .

From the graph, choose two points. Let us take (0,50) and (4,10).

$m=\frac{-40}{4}.$

m=-10.

∴The equation can be written as y= -10x+c.

To find the y-intercept value c, substitute any point.

Let us substitute(0,50) for instance,

50=0+c.

c=50.

The equation for the given graph is y= -10x+50.

To find the customers at the restaurant at 8.30 pm.

we know that x=0 at 7.00 pm,

∴ x=1.5 can be considered as 8.30 pm.

Substitute x=1.5 in the line equation.

y= -10(1.5)+50.

y= -15-50.

y= 35.

5 0

3 years ago

Bobby wants to leave a tip for her waitress equal to 15% of the bill. bobby's bill for her lunch was $18 . how much money repres

Neko [114]

$18 x 15%

18 x 0.15

$2.70

8 0

4 years ago