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Simora [160]
3 years ago
7

Tanya and Cam can each wash a car and vacuum its interior in 2 hours. Pat needs 3 hours to do this same job by himself. If Pat,

Cam and Tanya work together, how long will it take them to clean a car?​
Mathematics
2 answers:
Cloud [144]3 years ago
7 0

Answer:

1 hours

Step-by-step explanation:

That is my only answer ok

ValentinkaMS [17]3 years ago
6 0

Answer:

if 2 people together each take 1 hour to clean it together

and 1 person alone takes 3 hours to clean it alone

then all together it would take them 1 hour 3-2=1

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Pls help me i'm taking a test a and i don't want to fail it
notka56 [123]

Answer: then study its easy

Step-by-step explanation: first you open your book and you read over everything that will be on the test. and then u wont fail bih

5 0
3 years ago
1.
vodka [1.7K]

9514 1404 393

Answer:

  C.  The zeros are -1 and 5/2, because f(x) = (x + 1)(2x-5).

Step-by-step explanation:

The zeros of the function are the values that make the factors zero. The factors need to multiply out to give the original standard-form equation.

The sign of the constant (-5) tells you the product of the constants in the factors must be -5. That is only true for choices B and C.

Additionally, the x-term needs to match the result of multiplying out the factors.

  B.  (x -1)(2x +5) = 2x^2 +3x -5 . . . . . . . . . wrong x-term (not -3x)

  C.  (x +1)(2x -5) = 2x^2 -3x -5 . . . . . . . . . matches the given f(x)

The factors of C are zero when x=-1, x=5/2.

8 0
2 years ago
Try this, please!
mestny [16]
Check the picture below.

the triangle is an isosceles, so it has twin legs, and a base bottom.

the twin sides stem from the "vertex", and we know the vertex is 120°, and since the triangle is inscribed in a circle, because the circle is "circumscribing" it, then the base side of the triangle will be the diameter of it.

if we run a perpendicular line to the base from the vertex, we'll split the vertex in two 60° angles, as you see there, giving us a 30-60-90 triangle on each side.

so, anyhow, the rest is just a matter of using the 30-60-90 rule.

that's the diameter, and as you know, the radius is just the length of the base, or half the diameter.

3 0
3 years ago
The principal of a middle school claims that test scores of the seventh-graders at his school vary less than the test scores of
AveGali [126]

Answer:

There is sufficient evidence to support the claim that the standard deviation is less than 14.7.

Step-by-step explanation:

From the question we are told that that the null hypothesis is

       H_o  :  \sigma < 14.7

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.

3 0
3 years ago
Free 11 point, take it or leave it.
tekilochka [14]

Answer:

thanks for the free points

Step-by-step explanation:

7 0
3 years ago
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