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Colt1911 [192]
3 years ago
6

A5 inch x 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2x inches larger

Mathematics
1 answer:
My name is Ann [436]3 years ago
8 0

Answer:

8x+24

dimensions of the photograph  

length - 7 inch  

width - 5 inch

dimensions of the photo frame is 2x larger than both width and length  

length - 7 + 2x

width - 5 + 2x

the perimeter is sum of all 4 sides  

Perimeter = 2(7 + 2x) + 2(5 + 2x)

                = 14 + 4x + 10 +4x

                = 24 + 8x

correct answer is 8x+24

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The cost of manufacturing x T-shirts is modeled by the function T(x)=5x+12and the cost of manufacturing x sweatshirts is modeled
NISA [10]
87 for t-shirts and 243 for sweatshirts, the total cost is 330
8 0
3 years ago
Z varies directly as x2. If z = 16 when x = 2, find z when x = 5.<br> ...<br> Z=
PtichkaEL [24]

Answer:

100

Step-by-step explanation:

it is a bit unclear to me, what that problem description means.

if I understand it correctly, than z is directly depending on x².

so, z = 16 for x = 2. x² = 4

I pondered a little bit, as there are several possibilities to connect 16 with 4 as a driving factor (e.g. 2⁴ = 16, 4×4 = 16, 12 + 4 = 16).

I decided to go with the simplest interpretation with the usual meaning of "varies" (multiplication) : 4×x²

that would mean

z = 4×x² = 4×5² = 4×25 = 100

3 0
3 years ago
A researcher wished to compare the average amount of time spent in extracurricular activities by high school students in a subur
Kisachek [45]

Answer:

A 0.01

Step-by-step explanation:

<em>I saw the answer on the internet.</em>

3 0
3 years ago
Help please!!!!!!!!!!!!!
KatRina [158]
Hello!

For this you can plug in the x values in the choices and see if you get the y value

y = -4^{3}  - (-4)

-4^3 is -64

when you subtract a negative you are just adding

-64 + 4 = 60

Then you do the second one

y =  -3^{3}  - (-3)

-3^3 is -27

-27 + 3 is -24

Then the third one

y =  -2^{3}  - (-2)

-2^3 is -8

-8 + 2 is -6

Then the last one

y =  -1^{3}  - (-1)

-1^3 is -1

-1 + 1 = 0

Since we did not get -2 the answer is D

Hope this Helps!
7 0
3 years ago
How do I round 0.3 to the nearest thousandth
Luda [366]
0.3 is 3 tenths.
The order of "ths" is tenths, hundredths, thousandths.
Since there are no numbers after the 3, you simply have to add 2 zeros to make it 300 thousandths.

0.300<span />
6 0
3 years ago
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