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steposvetlana [31]
3 years ago
10

What ordered pair is a solution of the equation? y=-2x-5

Mathematics
1 answer:
daser333 [38]3 years ago
7 0

Answer:

x=-2.5

Step-by-step explanation:

subsitute y for 0

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c) 24.4 cm
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Factor 15c·(a+b)+8·(b+a)
AleksAgata [21]

Answer:

(15c + 8)(a + b).

Step-by-step explanation:

15c·(a+b)+8·(b+a)

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= (15c + 8)(a + b).

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2 years ago
18. What is the solution to the system of equations?
AlekseyPX

Answer:

The solution to the system of equation is (0 , -2 , 1).

Step-by-step explanation:

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6 0
2 years ago
Which fraction has the value that's equal to 3/4
mamaluj [8]

One of the fractions that’s equal to \frac{3}{4} is \frac{12}{16}

<u>Solution:</u>

Given that , we have to find fractions which has the same value as that of the fraction \frac{3}{4}

Now, we know that, there are several fractions with values equal to \frac{3}{4}

To find them, just multiply the numerator and denominator by the same number.

\begin{array}{l}{3 \times 2=6} \\\\ {4 \times 2=8}\end{array}

Therefore, \frac{6}{8} is equal to \frac{3}{4}

We can do the same with 4, to get \frac{12}{16}, or any other number beyond that.

Hence, one of the fractions that’s equal to \frac{3}{4} is \frac{12}{16}

4 0
3 years ago
Change the subject of the formula L = v 4kt - p to k.
Romashka [77]

Answer:

\boxed{k = \frac{L^2 + p}{4t}}

General Formulas and Concepts:

<u>Algebra I</u>

Basic Equality Properties

  1. Multiplication Property of Equality
  2. Division Property of Equality
  3. Addition Property of Equality
  4. Subtraction Property of Equality

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify given.</em>

<em />\displaystyle L = \sqrt{4kt - p}

<u>Step 2: Solve for </u><u><em>k</em></u>
We can use equality properties to help us rewrite the equation to get <em>k</em> as our subject:

Let's first <em>square both sides</em>:

\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\\end{aligned}

Next, <em>add p to both sides</em>:

\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\\end{aligned}

Next, <em>divide 4t by both sides</em>:

\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\& \rightarrow \frac{L^2 + p}{4t} = k \\\end{aligned}

We can rewrite the new equation by swapping sides to obtain our final expression:

\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow \boxed{k = \frac{L^2 + p}{4t}}\end{aligned}

∴ we have <em>changed</em> the subject of the formula.

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Learn more about Algebra I: brainly.com/question/27698547

---

Topic: Algebra I

6 0
1 year ago
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