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4 years ago

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The value of Greta's rolls of coins is $121.00. If pennies and dimes come in rolls of 50 coins each, and nickels and quarters co

me in rolls of 40 coins each, which of these combinations could Greta have?

1 answer:

aksik [14]4 years ago

8 0

Answer:

D

Step-by-step explanation:

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Expand.<br> Your answer should be a polynomial in standard form.<br> (9+ m)(-m +9)=

valina [46]

Answer: -1m²+81

Step-by-step explanation:

correct standard form means that the terms are ordered from biggest exponent to lowest exponent.The leading coefficient is the coefficient

of the first term in a polynomial in standard form.

FoR example, (9+ m) (-m+9) = *(m+9) (-m+9) *m(-m+9) +9 (-m+9)* -1.mm+9m +9(-m+9) * -1m² +9m +9(-m+9) *-1m²+9m- 9m +81

answer -1m²+81

6 0

3 years ago

Select all the fractions that are equal to 4.9 Group of answer choices LaTeX: \frac{490}{10}490 10 LaTeX: \frac{49}{10}49 10 LaT

denis23 [38]

Answer:

thats a lot hold up

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the an equation of the horizontal line through (5,-2)

Vikki [24]

Answer: y = -2

Step-by-step explanation: Because the line is horizontal, the slope is 0. So on a graph the line will cut through (5,-2), (4,-2), (3,-2), (2,-2), (1,-2), and (0,-2). The line can pass through any x value, but the y value will always stay the same for this line. This means the y-intercept is -2. Because the slope is 0 and the y-intercept is -2, the equation is y = 0x -2, but there is no value in keeping the 0. So, you take it out leaving you with y = -2.

Hope This Helps! Good Luck and Have a Great Night!

6 0

3 years ago

A rate of deposit of dust from unpolluted air is 10.0 tons per square mile per month (30 days). what is this dust fall, in milli

valina [46]

The rate of dust deposition is
$Rate= \frac{10 \,tons}{mi^{2}-30\,days} = \frac{1}{3} \, \frac{tons}{mi^{2}-day}$

Note that
1 ton = 9.07185 x 10⁵ g = 9.07185 x 10⁸ mg
1 mi = 1609.34 m = 1.60934 x 10³ m
1 day = 24 h

Therefore
$Rate=( \frac{1}{3}\, \frac{tons}{mi^{2}-day} )*( \frac{1}{24} \, \frac{day}{h} )*( \frac{1}{1.60934\times10^{3}}\, \frac{mi}{m} )^{2}*(9.07185\times10^{8}\, \frac{mg}{ton})\\= 4.865\, \frac{mg}{m^{2}-h}$

Answer: $4.865\, \frac{mg}{m^{2}-h}$

3 0

3 years ago

Six marbles are placed in a bag. One is green, two are yellow, and three are red. Without looking, Karen chooses one. What is th

sp2606 [1]

Answer:1/2

Step-by-step explanation:

5 0

3 years ago