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2 years ago

Please solve in a big hurry!: will name the Brainliest!!!

Mathematics

2 answers:

trapecia [35]2 years ago

8 0

Answer:

4x+9 = 2x-1

Step-by-step explanation:

dangina [55]2 years ago

7 0

Answer:

Third one

Step-by-step explanation:

nine more than four times a number:

4x+9

x is the "mystery number"

"is the same as" is just another way of saying "equals"

one less than twice the number ("the number" is just x):

2x-1

put them all together:

4x+9=2x-1

don't over look it; break it down

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7. You have the number 10 through 99

g100num [7]

The probability of selecting a multiple of 5 is:

P = 0.202

<h3 /><h3>How to get the probability?</h3>

The probability will be equal to the quotient between the number of multiples of 5 on the given interval and the total number of numbers on the interval.

Here the interval is [10, 99]

So we have 99 - 10 = 89 numbers there, and the multiples of 5 are:

10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95

So we have 18 multiples of 5, then the 0.202is:

P = 18/89 = 0.202

Learn more about probability:

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3 0

8 months ago

Drag the tiles to the correct boxes to complete the pairs not all tiles will be used match each sine or cosine value to its equi

VARVARA [1.3K]

Sines and cosines are trigonometric identities

The corresponding match of the sine or cosine values are:

Cos(57) = Sin(33)
Sin(43) = Cos(47)
Cos(43) = Sin(47)
Sin(32) = Cos(58)

<h3>How to determine the sine and cosine values</h3>

Given that:

$\sin(a) = \cos(b)$

Then:

$a + b = 90$

This means that, angles a and b are opposite values

For cos(57),

The sine value is: sin(33)

This is so because:

57 + 33 = 90

When the above formula is applied to the remaining functions, we have:

sin(43) = cos(47)

cos(43) = sin(47)

sin(32) = cos(58)

Read more about sine and cosine ratios at:

brainly.com/question/12172664

7 0

2 years ago

If f(x) =4x2 - 8x - 20 and g(x) = 2x + a, find the value of a so that the y-intercept of the graph of the composite function (fo

amm1812

Answer:

The possible values are a = -2.5 or a = 4.5.

Step-by-step explanation:

Composite function:

The composite function of f(x) and g(x) is given by:

$(f \circ g)(x) = f(g(x))$

In this case:

$f(x) = 4x^2 - 8x - 20$

$g(x) = 2x + a$

$(f \circ g)(x) = f(g(x)) = f(2x + a) = 4(2x + a)^2 - 8(2x + a) - 20 = 4(4x^2 + 4ax + a^2) - 16x - 8a - 20 = 16x^2 + 16ax + 4a^2 - 16x - 8a - 20 = 16x^2 +(16a-16)x + 4a^2 - 8a - 20$