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3 years ago

14

A garden has 20 roses, 30 tulips, and 40 daffodils If Selma randomly selects a flower from the garden, which flower is she LEAST

likely to pick up?

2 answers:

Gnoma [55]3 years ago

8 0

The rose because it is the smallest

Neko [114]3 years ago

5 0

Roses, because there are the less roses than all of the other flowers.

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-7+(-3) SHOW WORK PLEASE HURRY

DENIUS [597]

Answer:

-10

Step-by-step explanation:

-7+(-3)= -7-3

= -(7+3)

= -10

Side note: Do you not have a caculator?

7 0

2 years ago

In an atom, electrons have a negative charge and protons have a positive charge. One negative and

Ostrovityanka [42]

Answer:

The charge is negative and the amount is 215

Step-by-step explanation:

Electrons are negative

-354

Protons are positive

+139

-354+139

-215

6 0

2 years ago

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

lara31 [8.8K]

Answer:

x = 2 or

x = -7

Step-by-step explanation:

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

x - 2 = 0

Add 2 to both sides

x - 2 + 2 = 2 + 0

x = 2

OR

x + 7 = 0

Subtract 7 from both sides

x + 7 - 7 = 0-7

x = -7

Therefore

x = 2 or

x = -7

6 0

3 years ago

50 coins all dimes and quarters total is 10.25 how many dimes?

Yanka [14]

Answer:

You can do these "in your head" like this:

50 dimes would be $5.00

Each quarter adds 15 cents.

10.25 - 55.00 = $5.25 added

Step-by-step explanation:

525/15 = 35 quarters

--> 15 dimes

==========================

or,

d + q = 50

10d + 25q = 1025

etc

8 0

2 years ago

Peter has 3200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed a

salantis [7]

Answer:

$A = 640000\,yd^{2}$

Step-by-step explanation:

Expression for the rectangular area and perimeter are, respectively:

$A (x,y) = x\cdot y$

$3200\,yd = 2\cdot (x+y)$

After some algebraic manipulation, area expression can be reduce to an one-variable form:

$y = 1600 -x$

$A (x) = x\cdot (1600-x)$

The first derivative of the previous equation is:

$\frac{dA}{dx}= 1600-2\cdot x$

Let the expression be equalized to zero:

$1600-2\cdot x=0$

$x = 800$

The second derivative is:

$\frac{d^{2}A}{dx^{2}} = -2$

According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

$y = 800$

The maximum area is:

$A = (800\,yd)\cdot (800\,yd)$

$A = 640000\,yd^{2}$

8 0

3 years ago

Read 2 more answers