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3 years ago

Write and evaluate the expression. Then, select the correct answer.

Mathematics

1 answer:

Law Incorporation [45]3 years ago

4 0

Answer:

Step-by-step explanation: So we need to write and solve an equation to solve for m, which is 12. Simply plug in 12 for m in the equation.

Step 1: 2-x/4+10

Step 2: 2-12/4+10

Step 3: 2-3+10

Step 4: -1+10=9

Plug 12 in for x

12 divided by 4 is 3 and 2-3 is -1

-1 + 10 is 9 -1 + 10 is 9

i hop it help u

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Which phrases can be represented by the algebraic expression x + 14? Select three options.

Snezhnost [94]

Answer:

a number plus 14

fourteen more than a number

a number increased by 14

Step-by-step explanation:

The phrases which can be represented by the algebraic expression x + 14 are

Let x = the unknown number

a number plus 14

= x + 14

fourteen more than a number

= x + 14

a number increased by 14

x + 14

4 0

3 years ago

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In this problem we will be dealing with the probability density function (pdf) associated with a continuous random variable, X.

konstantin123 [22]

Answer:

$b)\ 0.568$

Step-by-step explanation:

Given

$f(x) = 6x(1- x);\ 0 \le x \le 1$

Required

$P(0.3 < x < 0.7)$

From the question, we have:

$P(a < x < b) = \int\limits^b_a {f(x)} \, dx$

So, we have:

$P(0.3 < x < 0.7) = \int\limits^{0.7}_{0.3} {6x(1 - x)} \, dx$

Open bracket

$P(0.3 < x < 0.7) = \int\limits^{0.7}_{0.3} {6x - 6x^2} \, dx$

Integrate

$P(0.3 < x < 0.7) = \frac{6x^2}{2} - \frac{6x^3}{3}}|\limits^{0.7}_{0.3}$

$P(0.3 < x < 0.7) = 3x^2 - 2x^3|\limits^{0.7}_{0.3}$

Substitute 0.7 and 0.3 for x

$P(0.3 < x < 0.7) = (3*0.7^2 - 2*0.7^3) - (3*0.3^2 - 2*0.3^3)$

Using a calculator, we have:

$P(0.3 < x < 0.7) = (0.784) - (0.216)$

Remove brackets

$P(0.3 < x < 0.7) = 0.784 - 0.216$

$P(0.3 < x < 0.7) = 0.568$

3 0

2 years ago

What is 3/10 x 5/36 please answer

Rudik [331]

Answer:

1/24

Step-by-step explanation:

Pls mark me the brainiest thx.

Hope this helps!

3 0

2 years ago

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6. If f(x) = 3x +3 and g(x)=-3+2x, find the rule of the function 2g(x)+2f(x).

mars1129 [50]

<h3>Answer:</h3>

$10x$

Solution:

If $f(x) = 3x +3$ and $g(x) = -3 +2x$ , then $2g(x) +2f(x)$ is:

$2(-3 +2x) +2(3x +3) \\ -6 +4x +6x +6 \\ (-6 +6) +(4 +6)x \\ 0 +10x \\ 10x$

5 0

3 years ago

ASAP _________________

grandymaker [24]

Answer: OPTION A.

Step-by-step explanation:

Since the sum of the interior angles of a quadrilateral is 360 degrees.

We can write the following expression:

$m\angle C+m\angle BED+m\angle CBE+m\angle D=360\°$

We know that ABEF≅CBED. Then:

$m\angle A=m\angle C\\\\m\angle F=m\angle D$

Substituting and solving for $m\angle A$ , we get:

$m\angle A+82\°+152\°+98\°=360\°\\\\m\angle A=360\°-82\°-152\°-98\°\\\\m\angle A=28\°$

6 0

3 years ago

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