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Marina86 [1]
3 years ago
14

No need to explain just tell the answer

Mathematics
1 answer:
Ad libitum [116K]3 years ago
8 0

Answer: z = 18

Step-by-step explanation:

180 = 90 + (3z+4) + (2z-4)

z = 18

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Determine whether each statement is sometimes, always, or never true. If the scale factor of two similar solids is a:b, then the
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Answer:

never

Step-by-step explanation:

let k be the scale ratio of two bodies then according to the question

k = a/b  -- (1)

let Sa be the surface area of body A and Sb be the surface area of body B , then

according to the relation of scale factor and surface areas

k^{2}  Sa = Sb

from the above equation ,

Sa/Sb = 1/k^{2}

as k = a/b  from (1)

thereforeSa/Sb=1/(a/b)^{2} \\Sa/Sb = b^{2} /a^{2}

hence the ratio of their surface area is b^{2} /a^{2}

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4 years ago
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Answer:

Hi There! There are no solutions to this system.

Step-by-step explanation:

nd When graphing a set of equations, make sure that the slopes are not equivlient. If the slopes are equivlient, the lines are parallel, and parallel lines do not intersect. You can check the slope of the equations to find if they are equal. Both graphs go down by 3 each time they go over 2, making the slope -3/2. If they have the same slope, but a diffrent Y interset, they are parallel.   You can also set the equations equal to  each other, and when solving find that 7 does not equal 1, or

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6 0
3 years ago
A sandwich shop has 60 stores and 90% of the stores are in California. The rest of the stores are in Nevada.
VladimirAG [237]

Answer:

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Step-by-step explanation:

7 0
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bezimeni [28]
1 and 1/2 is the scale factor
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Which of the following is equivalent to 5 • (7 • 4)?
serg [7]

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Step-by-step explanation:

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140

------------

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4 0
3 years ago
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