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3 years ago

Which of the following is equivalent to (x2+y)(y+z)? Explain your answer

Mathematics

1 answer:

PolarNik [594]3 years ago

4 0

Answer:

X^2y+x^2z+y^2+yz

Step-by-step explanation:

x^2(y+z)+y(y+z)

x^2y+x^2z+y^2+yz

basically you distrinbute the first bracket to the second bracket

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Original price of a camera : is $599.99 and the discount is 48% how much is that all together

Elden [556K]

Answer:

$311.9

599.99*.48= 287.9952

599.99-287.9952 = 311.9048

rounded to nearest cent is $311.90

7 0

3 years ago

Read 2 more answers

Someone please help<br> this is for a grade but I forgot how to do this helppp!!

shepuryov [24]

First problem: 24/3=8
24 km irl is 8 cm on the map

problem #2: 9 times 17 = 153
The cities are 153 miles apart

8 0

3 years ago

Two canoes travel down a river, starting at 9:00 a.M. One canoe travels twice as fast as the other. After 4.5 hours, the canoes

Vedmedyk [2.9K]

Answer:

$v_1=3.33 \ miles/hour\\v_2=6.66 \ miles/hour$

Step-by-step explanation:

<u>Constant Speed Motion </u>

When the object travels the same distances in the same period of time, the speed is constant and is can be calculated as

$\displaystyle v=\frac{x}{t}$

where x is the distance and t is the time

There are two canoes traveling at speeds v1 and v2. One of them has twice the speed as the other. Let's say

$v_2=2v_1$

When t hours have passed, the canoes have traveled x1 and x2 respectively.

$x_1=v_1t$

$x_2=v_2t$

Since

$v_2=2v_1$

Then

$x_2=2v_1t$

The distance between them is

$X=x_2-x_1=2v_1t-v_1t$

$X=v_1t$

That distance is known and equals 11.25 miles, thus

$v_1t=15$

Solving for v1 and using t=4.5 hours

$\displaystyle v_1=\frac{15}{4.5}$

$v_1=3.33 \ miles/hour$

$v_2=2\times 3.33$

$\boxed{v_2=6.66 \ miles/hour}$

6 0

3 years ago

A scientest is studying a new super bacteria that is threatening to cause an outbreak. On the first day, there were 5 organisms

ElenaW [278]

Answer:

C. 125

Step-by-step explanation:

Given:

Bacteria on day 1 = 5

On day 2, each bacteria got split into 5.

So, number of bacteria on day 2 = $5\times 5 = 25$

Now, again on day 3, each of the 25 bacteria got split into additional 5 bacteria.

So, number of of bacteria on day 3 = $25\times 5 =125$

Therefore, the population of bacteria on day 3 is 125.

8 0

3 years ago

What are the terms in the expression 350n-30n+350-(50+10n)

trapecia [35]

Terms- 350n, 30n, 350, and (50+10n) (four terms)
coefficients- 350,30,and 10

5 0

3 years ago