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3 years ago

Simplify the expression -4+11

Mathematics

1 answer:

11111nata11111 [884]3 years ago

3 0

Answer:

Step-by-step explanation:

-4 +11 is saying that assuming if a person owe 4 dollars and his friend gives him 11 dollars that he will pay back the four dollars and still have 7 dollars left

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(X+9)(x-2)-9x-6 is equivalent to?

Allushta [10]

Answer:

$x^{2}$ - 2x - 24

Step-by-step explanation:

(x + 9)(x - 2) - 9x - 6

$x^{2}$ - 2x + 9x - 18 - 9x - 6 Multiply.

$x^{2}$ - 2x - 24 Combine the like terms.

4 0

1 year ago

X = 10 - y and y = x - 8

garik1379 [7]

Answer:

x = 9 and y = 1

Step-by-step explanation:

Here,

x = 10 - y and y = x - 8 is given

then, name the equation

x = 10 - y ...(1)

y = x - 8 ...(2)

Now, put the value of x in equation (2) we get

y = x - 8

y = (10 - y) - 8

y = 10 - y - 8

y + y = 10 - 8

2y = 2

y = 2÷2

y = 1

Here, we get the value of y = 1

Now, we put the value of y in equation (1) we get

x = 10 - y

x = 10 - (1)

x = 10 - 1

x = 9

<h3><em><u>VERIFICATION</u></em><em><u>:</u></em></h3>

x = 10 - y

9 = 10 - 1

9 = 9

Hence, LHS = RHS

-TheUnknownScientist

7 0

2 years ago

Can someone help me find x

Viefleur [7K]

Answer:

Rounded to the nearest tenth: $x=5.7$ in

Rounded to the nearest hundredth: $x=5.74$ in

Step-by-step explanation:

We have a right triangle with a given angle of 35°. We also have the opposite side of that angle, $x$ , and its hypotenuse 10 in. To find $x$ , we are using the trig function that relates the opposite side with the hypotenuse; in other words, the sine trig function.