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just olya [345]
3 years ago
7

A number is equal to the sum of half a second number and 3. The first number is also equal to the sum of one-quarter of the seco

nds number and 5 what which equation can show this x represent the second number
Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
First number=1/2x+3
first number=1/4x+5
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Which transformations can be used to carry ABCD onto itself? The point of
dmitriy555 [2]

Answer:

A and B

Step-by-step explanation:

For A, y=2 is the axis of vertical symmetry, meaning a reflection would map the shape onto itself.

For B, x=3 is the axis of horizontal symmetry, meaning a reflection would map the shape onto itself.

For C, a rotation of 90 degrees would make the shape taller vertically and shorter horizontally, therefore it would be wrong.

For D, a translation two units down would move all points down, even though some would need to go up, therefore it would be wrong.

7 0
3 years ago
Find the perimeter<br> Please answer<br> HS geometry
Tasya [4]

Answer:

Hey boss man, just add up all the sides! For example, just add 3.9+3.9+3.9! and if there is a line in the middle of a certain side, it means that it is congruent or the same as another side with a dash. For example, with number 2, the side without a measurement is congruent with the the side with measurement of 7mm! Hope this helps! You got this! :)

Step-by-step explanation:

5 0
3 years ago
Please help quickly if possible
lora16 [44]

Answer:

$36

Step-by-step explanation:

8a+5c

8(2)+5(4)

16 + 20

36

4 0
3 years ago
Read 2 more answers
Plz answer this correctly and not some stupid answer, See picture. 10th grade level.
vichka [17]

9514 1404 393

Answer:

  -101 feet

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the relevant relation is ...

  Tan = Opposite/Adjacent

  Opposite = Adjacent × Tan

  height = (0.5 × 5280 ft) × tan(47°) ≈ 2831 ft

__

The usual relation between estimates and errors is ...

  error = estimate - actual

Then ...

  actual = estimate - error

For the given angle and error, the actual angle is ...

  actual angle = 47° -(-1°) = 48°

  actual height = (2640 ft)·tan(48°) ≈ 2932 ft

Then the change in the height of the mountain due to the error is ...

  2831 ft -2932 ft = -101 ft

The error of -1° in angle estimate creates an error of -101 ft in the height estimate.

6 0
3 years ago
A school drama club has 50 members . Of those students , 35% of the members are seventh graders . How may drama club members are
ikadub [295]
50×.35=17.5 but you would round up to 18.
So 18 members are on drama club
5 0
3 years ago
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