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2 years ago

Solve for X and show work

Mathematics

1 answer:

Len [333]2 years ago

7 0

I don’t know how to show how I got it but the answer is X=12.

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What is the area of a sheet of binder paper? (Binder paper is 8 1/2 inches by 11 inches.)

11Alexandr11 [23.1K]

Area of a rectangle is the product of length times width. Thus, here we need the product of 8 1/2 inches by 11 inches.

One way of doing this follows: 8.5
8.5
----------
93.5 square inches

Rounding up, this comes out to 94 square inches.

Alternatively: 17 187
---- * 11 = ------- = 93.5 square inches; rounded, that's 94.
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3 0

3 years ago

How do you know whether two quantities x and y are proportional?

ANEK [815]

Answer:

I'm pretty sure it is (a)

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2 years ago

Read 2 more answers

Let A = { x ∈ R : x 2 − 5 x + 4 ≤ 0 } , B = (3 , 5), and C = (3 , 4]. Show that A ∩ B = C . (Recall, you must show two separate

kolbaska11 [484]

Answer:

You can proceed as follows:

Step-by-step explanation:

First solve the quadratic inequality $x^{2}-5x+4\leq 0$ . To do that, factorize, then we have that $(x-4)(x-1)\leq 0$ . This implies that

$x-1\leq 0\, \text{and}\, x-4\geq 0$

$x-1 \geq 0\, \text{and}\, x-4\leq 0$

In the first case the solution is the empty set $\emptyset$ . In the second case the solution is the interval $1\leq x \leq 4$ . Now we have that

$A=[1,4]$

$B=(3,5)$

$C=(3,4]$ .

To show that $A\cap B\subseteq C$ consider $x\in A\cap B$ . Then $1\leq x \leq 4\, \text{and}\, 1$ , this implies that $3$ , then $x\in C$ . Now, to show that $C\subseteq A\cap B$ consider $x\in C$ , then $3$ , then $1\leq x \leq 4\, \text{and}\, 3$ , then $x\in [1,4] \, \text{and}\, x\in (3,5)$ , this implies that $x\in A\cap B$ .

Observe the image below.

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3 years ago

0.006/6,000 is it Much Larger than or close to 1

ANEK [815]

Answer:

Less close to one

Step-by-step explanation:

0.006/6,000= 0,000001

7 0

2 years ago

Parallel lines x and w are cut by transversals z and y and form 4 angles at each intersection. Where line x intersects with line

ale4655 [162]

Answer:

$m\angle 1 =105^\circ\\m\angle 2 =75^\circ$

Step-by-step explanation:

The diagram is drawn and attached below.

From the diagram

$m\angle 2 =75^\circ $ (Alternate Angles)$

$m\angle 1+ m\angle 2 =180^\circ $ (Sum of angles on a straight line)\\m\angle 1+75^\circ =180^\circ\\m\angle 1 =180^\circ-75^\circ\\m\angle 1 =105^\circ$

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2 years ago