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ryzh [129]
2 years ago
9

Select the correct answer from each drop-down menu. The solution process is shown for an equation. Justify each step in the proc

ess with the appropriate property 2x + 5 = -7 (x-2)
Mathematics
1 answer:
koban [17]2 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

Given the equation :

2x + 5 = -7 (x-2)

Open The bracket

2x + 5 = - 7x + 14

Collect like terms :

2x + 7x = 14 - 5

9x = 9

Divide both sides by 9

9x /9 = 9/9

x = 1

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Use the graph to find the indicated value of the unction.<br> '여<br> f(-4) =
ziro4ka [17]

 

From the graph  ⇒  f(-4) = -8

⇒  f(x) = 2x

5 0
3 years ago
What is the answer to 3/2000 as a percent
Nina [5.8K]
The answer to this is .15%
6 0
3 years ago
Read 2 more answers
The first two terms of an arithmetic sequences are 7 and 3.
Katyanochek1 [597]

Answer:

1.1.1) -61

1.1.2) Term 42

Step-by-step explanation:

Tn= dn (difference) + t0 (term 0)

Tn= -4n+ 11

You can now take this general rule to find out the other terms.

Tn= -4(18)+11

Tn= -61

And the term -157

Tn= -4n+11

-157= -4n + 11

-157 - 11= - 4n

-168= -4n

-168/-4= n

42= n

3 0
3 years ago
A purchaser of electric relays buys from two suppliers, A and B. Supplier A supplies two of every three relays used by the compa
Reptile [31]

Answer: Our required probability is 0.3162.

Step-by-step explanation:

Since we have given that

n = 60

Probability of success = \dfrac{2}{3}

Probability that at most 39 of these relays come from supplier A would be

P(X\leq 39)=binomcdf(60,\dfrac{2}{3},39)=0.3162

Hence, our required probability is 0.3162.

7 0
3 years ago
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 47.3 m
Harlamova29_29 [7]

Answer:

47.4167

D. The computed mean is close to the actual mean because the difference between the means is less than 5%

Step-by-step explanation:

Given the distribution :

Speed(m/hr) ___ midpoint(x) ___ F ___fx

42 - 45 _______ 43.5 ________21 __ 913.5

46 - 49 _______47.5 _________15 __712.5

50 - 53 _______ 51.5 _________6 __ 309

54 - 57 _______ 55.5 ________ 4 ___ 222

58 - 61 ________59.5 ________ 2 ___ 119

The midpoint, x= sum of lower and upper boundary divided by 2

For instance, (42 + 45) / 2 = 43.5

The computed mean, Σfx / Σf = 2276 / 48 = 47.4167

Actual mean = 47.3 miles

(47.4167 - 47.3) / 47.3 * 100% = 0.24%

6 0
3 years ago
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