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tatyana61 [14]
1 year ago
6

PLEASE HELP I REALLY NEED IT!!!! WORTH 100 POINTS

Mathematics
1 answer:
-Dominant- [34]1 year ago
3 0

Answer:

Question 1 : The answer is 143.3 miles

Question 2 : The answer is 120 minutes

Step-by-step explanation:

1.Based on the give conditions:

43 \times 90 \div 27 \\ calculate \frac{43 \times 90}{27}  =  \frac{430}{3}= 143.3

2. 90 miles = 75min

143.3 ÷ 90 = 1.6

75 × 1.6 = 120

so the answer is 120 min

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Not an actual test question but just curious:
saveliy_v [14]

well, when we use the word "the function" we're referring to the dependent part, which depends on the independent, y,x wise, we're referring to the function "y" or f(x) if you wish.

so for an exponential function

is the function ever positive only? it can be

is it negative only?  it can be

can it be both?  sure thing, most of the time it's both

we can say a function f(x) is always positive when the independent values of "x" yield a positive value only, mind you that when we're talking about "the function" we're really referring to the resulting values in a set, so can the values of the output no matter what "x" we use be always positive? sure, can they also be negative only? sure, how about both? sure thing.

notice the template in the picture below, we can transform any exponential function like the one above 2ˣ with some vertical shift upwards, and is always positive, or -2ˣ with a vertical shift downwards and it's always negative, or we can stretch it about and have -2ˣ shifted upwards so sometimes is positive, and sometimes is negative.

above the x-axis is always positive, below is negative, but with transformations on the parent function it can be any of the three types.

3 0
2 years ago
Robin randomly selects a number between 1 and 20 what is the probabilty that the number selected is the square of a natural numb
Ket [755]
Squares of Natural numbers from the range of 1 to 20:
1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
(whereas 5^2 = 25 which is outside the range).

There are 4 numbers out of 20, so the probability is 4/20*100% = 20%
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3 0
2 years ago
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Find a normal vector n to the plane z−5(x−2)=2(8−y)
Hitman42 [59]

A normal vector is the set of coefficients of x, y, and z when the equation is written in standard (or general) form.

Subtracting the left side, we have

... 2(8 -y) -z +5(x -2) = 0

... 16 -2y -z +5x -10 = 0

... 5x -2y -z +6 = 0 . . . . . general form

A normal vector is (5, -2, -1).

7 0
3 years ago
Jackson earned $57,869.00 of taxable income last year. If the federal income tax rate was 25%, then how much federal income tax
STatiana [176]

Answer:

$14,467.25     i hope this helps   :)

Step-by-step explanation:

25% of 57,869.00 = $14,467.25

6 0
3 years ago
The grocery store sells kumquats for $5.00 a pound and Asian pears for $3.25 a pound. Write an equation in standard form for the
aniked [119]
Okay so your equation is going to be : 18= 5k + 3.25p
3 0
3 years ago
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