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alexandr402 [8]
2 years ago
10

HELP Solve for x and y

Mathematics
1 answer:
faust18 [17]2 years ago
5 0

Answer:

y=128

x=52

Step-by-step explanation:

Hope I helped.

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A school has 600 pupils. 1/5 are in the upper school, 1⁄4 in the middle school and
crimeas [40]

Step-by-step explanation:

the number of pupils are in the lower school

= (1- 1/5 - ¼) × 600

= (20/20 - 4/20 - 5/20)×600

= (11/20) ×600

= 330 pupils

4 0
3 years ago
The graph 4x^2-4x-1 is shown. Use the grpah to find the estimates for the solutions of 4x^2-4x-1=0 and 4x^2 - 4x-1=2
Darina [25.2K]

Answer:

a) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 0 are x_{1}\approx -0.25 and x_{2} \approx 1.25.

b) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 2 are x_{1}\approx -0.5 and x_{2} \approx 1.5

Step-by-step explanation:

From image we get a graphical representation of the second-order polynomial y = 4\cdot x^{2}-4\cdot x -1, where x is related to the horizontal axis of the Cartesian plane, whereas y is related to the vertical axis of this plane. Now we proceed to estimate the solutions for each case:

a) 4\cdot x^{2}-4\cdot x -1 = 0

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.25, x_{2} \approx 1.25

b) 4\cdot x^{2}-4\cdot x -1 = 2

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.5, x_{2} \approx 1.5

5 0
3 years ago
Express as fraction in simplest form
Arte-miy333 [17]

As a percent: 2.5%

As a decimal: .025

As a fraction: 25/1000

5 0
3 years ago
Use the meaning of cube roots to show how to find an exact solution to the equation Ya + 2 =
kodGreya [7K]

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Step-by-step explanation: don't know just trying to help

3 0
3 years ago
Convert the given radian measure to a degree measure.
dimaraw [331]

Answer:

d. 540 deg

Step-by-step explanation:

2 pi radians = 360 deg

(360 deg)/(2pi rad) = 1

3 pi * (360 deg)/(2 pi rad) = 3 * 180 deg = 540 deg

5 0
3 years ago
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