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Phantasy [73]
3 years ago
14

What are the solutions to the equation

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
8 0

Step-by-step explanation:

4) y²-1=48

y²=49

y=±7

option C -7 and 7

5) x²=289

x=±17

-17 and 17

Flauer [41]3 years ago
7 0

Answer:

Step-by-step explanation:

hello :

y²-1=48

y²-49=0

y²-7² =0

(y-7)(y+7)=0

y-7=0 or y+7 =0

y=7  or y = -7

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The table shows the temperatures in degrees Celsius, y, inside a shed at x hours past noon. The maximum and minimum temperatures
kolbaska11 [484]

Answer:

B

y = 3 cos (pi/12x - pi/4) + 17

Step-by-step explanation:

First find the average temperature which is 20 + 14/2 = 17

Find the amplitude

20 - 17 = 3

This means that that at noon, the shift is 3hrs past

the best equation that represents this scenario is y = 3 cos (\frac{\pi}{12}x - \frac{\pi}{4}) + 17

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2 years ago
Solving systems of equations by substitution<br> Y=6x y=5x+7
soldi70 [24.7K]
Y=6x (1)
y=5x-7 (2)

Substitute y into (2)
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8 0
3 years ago
Read 2 more answers
Doors for the small cabinets are 17.5 inches long. Doors for the large cabinets are 2.7 times as long as the doors for the small
AleksAgata [21]

Answer:

3 large doors

Step-by-step explanation:

Given

Board = 12ft

Represent small door with S and large with L

S = 17.5\ in

From the question, we understand that;

L = 2.7 * S

So, we have that

L = 2.7 * 17.5\ in

L = 47.25\ in

Required

Determine the number of Large doors that can be cut from the board

To do this, we simply divide the size of the board by the size of the large cabinet

i.e.

Number = \frac{Board}{L}

Number = \frac{12\ ft}{47.25\ in}

Convert feet to inches

Number = \frac{12 * 12\ in}{47.25\ in}

Number = \frac{144\ in}{47.25\ in}

Number = 3.04761904762

Get the integer part of the decimal

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Hence:

3 large doors can be gotten from the board

8 0
2 years ago
The difference of twice a number and 5 is 3.
Elan Coil [88]
Option C is the right way to solve the equation.
6 0
3 years ago
EXTRA POINTS! volume of spheres.
BartSMP [9]

Answer:

V≈33.51

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3 0
3 years ago
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