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son4ous [18]
3 years ago
5

5x - 4y + 8 ; x = 8 , y = 2.5

Mathematics
2 answers:
Mice21 [21]3 years ago
8 0
It’s 38 :) I hope it helps
marusya05 [52]3 years ago
6 0

Answer:

38

Step-by-step explanation:

because u deleting this app

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Combine the like terms to make a similar expression 2q+2+9
Ede4ka [16]
Add the 2 and 9 together:
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3 years ago
Answer the question in the picture pls WORTH 50 POINTS PLUS BRAINLIEST FOR FIRST CORRECT ANSWER
Alexus [3.1K]

Answer:

A

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

−y+4≥8

Step 2: Subtract 4 from both sides.

−y+4−4≥8−4

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Step 3: Divide both sides by -1.

−y

−1

≥

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5 0
3 years ago
Read 2 more answers
A manufacturer of mosquito repellent claims that the average amount of time their repellent is effective is at least 3.5 hours.
natta225 [31]

Answer:

Hypothesis Testing:

Manufacturer claims that the average of time their mosquito repelllent is effective is at least 3.5hrs l.e μ ≥ 3.5hrs

Step-by-step explanation:

5 0
2 years ago
The function below shows the number of car owners f(t), in thousands, in a city in different years t: f(t) = 0.25t2 − 0.5t + 3.5
N76 [4]
We solve this by the definition of slope in analytical geometry. The definition of slope is the rise over run. In equation, that would be

m = Δy/Δx = (y₂-y₁)/(x₂-x₁)

The x-coordinates here are the t values, while the y-coordinates are the f(t) values. So, let's find the y values of the boundaries.

At t=2: f(t)= 0.25(2)²<span> − 0.5(2) + 3.5 = 3.5
Point 1 is (2, 3.5)
At t=6: </span>f(t)= 0.25(6)² − 0.5(6) + 3.5 = 9.5
Point 2 is (6, 9.5)

The slope would then be

m = (9.5-3.5)/(6-2)
m = 1.5

Hence, the slope is 1.5. Interpreting the data, the rate of change between t=2 and t=6 is 1.5 thousands per year.
5 0
3 years ago
How many social security numbers are available if the only restriction is that the number 000-00-0000 cannot be assigned?
harkovskaia [24]
Each digit can be 0-9 ( 10 numbers)
 there are 9 numbers in a social security number

multiply 10 nine times:
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 =  1,000,000,000 ( 1 billion) possibilities.
 
 the restriction is it can't be all zeros so subtract 1 from the total
 1,000,000,000 - 1 = 999,999,999 combinations



3 0
3 years ago
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