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Temka [501]
2 years ago
11

HelPPP I need ANSWERS DUEE TOMORROW

Mathematics
1 answer:
aleksley [76]2 years ago
3 0
7. 233
8. 4
9. 6
10. 5
11. 4
12. 7
13. 7
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Given: f(x)=x^2, g(x)=x+6, h(x)=7<br><br>Find h{g[f(x)]}​
arsen [322]

Step-by-step explanation:

f(x)=x^2,\ g(x)=x+6,\ h(x)=7\\\\h(x)=7\ \text{It's the constant function. Therefore}\ h\{g[f(x)]\}=7

4 0
3 years ago
The hour hand of a clock moves -15 degrees every hour how many degrees does it move in 1 1/4 hours
iren [92.7K]

Answer:

-18 3/4

Step-by-step explanation:

4 0
3 years ago
Jenna's class brought in 40 pieces of fruit for a celebration and 32 pieces of fruit were eaten. What percentage of the fruit wa
Pepsi [2]

Answer:

20%

Step-by-step explanation:

40 pieces total

32 pieces eaten

40 - 32 = 8

8 pieces not eaten

Percentage = (part / whole) x 100%

Percentage = (8 / 40) x 100% = 0.2 x 100%

Percentage = 20%

4 0
2 years ago
Read 2 more answers
Show that if x and y may both be written as the sum of the squares of two rational integers, then their product xy may also be w
Georgia [21]

Answer:

See proof below

Step-by-step explanation:

One way to solve this problem is to "add a zero" to complete the required squares in the expression of xy.

Let x=m^2+n^2 and y=l^2+k^2 with m,n,l,k\in \mathbb{Z}. Multiplying the two equations with the distributive law and reordering the result with the commutative law, we get xy=(m^2+n^2)(l^2+k^2)=m^2l^2+m^2k^2+n^2l^2+n^2k^2=n^2l^2+m^2k^2+m^2l^2+n^2k^2

Now, note that 0=2lkmn-2lkmn=2nkml-2nlmk by the commutativity of rational integers. Add this convenient zero the the previous equation to obtain xy=n^2l^2-2nlmk+m^2k^2+m^2l^2+2nkml+n^2k^2=(nl-mk)^2+(ml+nk)^2, thus xy is the sum of the squares of nl-mk,ml+nk\in \mathbb{Z}.

7 0
3 years ago
What is the surface area of the rectangle prism
AnnyKZ [126]

Answer:

310 in²

Step-by-step explanation:

The general formula for the surface area of a prism is:

SA = 2ab + 2ac + 2bc, where 'a', 'b' and 'c' are the measures of the sides.  In this case the lengths are 4 in, 5 in and 15 in.

a = 4 in

b = 5 in

c = 15 in

SA = 2(4*5) + 2(4*15) + 2(5*15)

SA = 40 + 120 + 150 = 310 in²

7 0
3 years ago
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