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Alex17521 [72]
3 years ago
8

Please help asap xoxo

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer:

It should be C

Step-by-step explanation:

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Each of the variables t, w, x, y, and z represents a different positive real number. Given the equations below, which of the 4 v
alex41 [277]

Answer:

y has the greatest value.

Step-by-step explanation:

1.23w = t

Divide both sides by 1.23.

w=\frac{t}{1.23}

w=0.813t  --- (1)

1.01x = t

Divide both sides by 1.01.

x=\frac{t}{1.01}

x=0.99t --- (2)

0.99y = t

Divide both sides by 0.99.

y=\frac{t}{0.99}

y=1.01t --- (3)

From (1), (2) and (3), it is clear that y has the greatest value.

8 0
3 years ago
Which graph shows a system of equations with no solutions?
podryga [215]

Graph of Parallel lines shows a system of equations with no solutions

Step-by-step explanation:

Consider a set of equations

7x - 2y = 16\\21x + 6y =24

If we solve this both equations using any one of the solving method, (Substitution method) then we will get

7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}

substituting the following x in 2nd equation (21x + 6y = 24) We get

21(\frac{16+2y}{7} )+6y=24\\3(16+2y)+6y=24\\48+6y+6y=24\\12y=24-48\\y=-\frac{24}{12} \\y=-2

Put y= -2 in x equation

x=\frac{16+2(-2)}{7}\\ x=\frac{16-4}{7}\\\x=\frac{12}{7} \\x=1.71

Comparing these (x,y) values we can understand that they never meet at a point

4 0
3 years ago
Can someone plss help me with this!!!
qaws [65]

Answer

Algae to(-->) Mayfly nymph, Mayfly nymph to Dragonfly nymph and Trout, Dragonfly nymph also to Trout, Trout to Osprey.

please give me brainliest.

8 0
2 years ago
Work out an expression, in terms of x, for the perimeter of the shape.<br> Simplify your answer.
sammy [17]

Answer:1+3x+9+x+8+2x= 6x+9

so =3(x+3)

Step-by-step explanation:

7 0
3 years ago
Weather affects flights across the nation, causing delays, cancellations, and general disruption to the NAS. You have gathered a
hammer [34]

Answer:

a.) one sample t test

b.) H0 : μ = 59.3

c.) H1 : μ > 59.3

d.) μ = 59.3 ; σ = 39.84

e.) xbar = 79.4 ; s = 61.36

Test statistic = 3.16

Step-by-step explanation:

Given the sample data:

49.00 49.00 49.00 49.00 49.00 63.00 63.00 63.00 63.00 63.00 199.00 199.00 199.00 199.00 199.00 38.00 38.00 38.00 38.00 38.00 48.00 48.00 48.00 48.00 48.00 49.00 63.00 199.00 38.00 48.00

Sample size, n = 30

Using calculator :

xbar from the data above = 79.4

Standard deviation = 61.359

H0 : μ = 59.3

H1 : μ > 59.3

Test statistic :

(Xbar - μ) ÷ (σ/sqrt(n)

σ = 34.83

(79.4 - 59.3) ÷ (34.83/sqrt(30))

20.1 ÷ 6.359

Test statistic = 3.16

4 0
3 years ago
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