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3 years ago

Simplify 2[3-5(2+1)2+5] the last 2 is 2nd

Mathematics

2 answers:

mash [69]3 years ago

8 0

Answer:

-44 im pretty sure

Elena L [17]3 years ago

6 0

Answer:

uydfg

Step-by-step explanation:

hkbchjsbchvuhc

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Woodland high school

lesantik [10]

That is correct because it’s a real high school

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3 years ago

NEED HELP ASAP!! SHORT QUESTION!!

vichka [17]

Length. : 3. 4. 6. 8. 9.
Cost ($) : 24. 32. 48. 64. 72

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4 years ago

The notation f:S→T denotes that f is a function, also called a map , defined on all of a set S and whose outputs lie in a set T

AnnyKZ [126]

Answer:

There are many. Two examples are

$f(x) = x, \\f(x) = x^3$

Step-by-step explanation:

There are many examples. The simplest is

1 -

$f(x) = x$

It is trivial that

$\text{if \,\,\,\,} f(x) = f(y) \,\,\,\,\,\text{then} \,\,\,\,\, x=y$

2 -

$f(x) = x^3$

That function is injective as well.

$\text{if \,\,\,\,} x^3 = y^3 \,\,\,\,\,\text{then} \,\,\,\,\, x=y$

An example of a function that is NOT injective is

$f(x) = x^2$

Notice that

$f(-2) = (-2)^2 = 2^2 = 4$

4 0

4 years ago

9. The Strawberry Festival is finally here! Mrs.

chubhunter [2.5K]

$\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.$ Answer:

Step-by-step explanation:

x= gourmet pretzels

y= boxes of strawberries

system will be:

$\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.$

$\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.$ $\left \{ {{x=21.5-2y \atop {2x+2y=30}} \right.$ $\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.$ $\left \{ {{- \atop {43-4y+2y=30}} \right.$ $\left \{ {{- \atop {-4y+2y=30-43}} \right.$ $\left \{ {{- \atop {-2y=-13}} \right.$ $\left \{ {{- \atop {y=\frac{13}{2} }} \right.$ $\left \{ {x=21.5-2(6.5)}} \atop {y=6.5}} \right.$ $\left \{ {{x=8.5} \atop {y=6.5}} \right.$

a box of strawberries is 6.5

4 0

3 years ago

A scientist studied the migration patterns of two types of sharks.The tiger shark traveled 2,240 miles in 28 days. The great whi

lawyer [7]

Tiger shark:
2240 miles in 28 days = 80 miles/day

GW shark:
2368 miles in 32 days = 74 miles/day

80 miles/day x 32 days = 2560 miles the Tiger shark would have traveled

2560-2368 = 192

If the tiger shark had traveled at the same rate for 32 days, the tiger shark would have traveled 192 miles more than the great white shark

4 0

3 years ago