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3 years ago

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Mathematics

1 answer:

Ann [662]3 years ago

3 0

Answer:

31x³-60x²+7x-75

Step-by-step explanation:

(30x³-49x³+7x)+(50x³-60x²-75)

(-19x³+7x)+(50x³-60x²-75)

-19x³+50x³+7x-60x²-75

31x³-60x²+7x-75

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A linear relation is given by the function f (x) = −7x +18 . If (x, 46) is on the function, the value of x is

prohojiy [21]

Answer:

x=-4

Step-by-step explanation:

46 = -7x + 18

subtract 18 from each side to get:

28 = -7x

divide each side by -7 to get:

x = -4

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3 years ago

Using the technique in the model above, find the missing sides in this 30°-60°-90° right triangle.

nydimaria [60]

For this case what you should do is use the following trigonometric relationship:
tan (x) = C.O / C.A
Where
x: angle
C.O: opposite leg
C.A: adjoining catheto
Substituting the values we have:
tan (60) = long / short
tan (60) = long / 2
long = 2 * tan (60)
long = 3.46
Answer:
long = 3.46

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3 years ago

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LekaFEV [45]

Answer:30+15

Step-by-step explanation:

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3 years ago

The length of a metal rod is 9 3/4 feet. What is the length of 1/4 of the rod?

7nadin3 [17]

Answer:

2 $\frac{5}{16}$

Step-by-step explanation:

2 $\frac{5}{16}$ × 4 = 9 3/4

9 3/4 × 1/4 = 2 5/16

I hope this helps!

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2 years ago

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***WILL GIVE BRAINLIEST***

AlekseyPX

Answer:

a.) Selecting two red balls (because there are more red balls than white)

c.) Selecting 1 red ball and then 1 white ball (because there is also a chance of selecting a white ball after selecting a red ball)

(Not kinda sure)

Hope this helps......

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