-5(7+2y)+15(x+2y); x=7 and y=-7

Answers

Answer 1

Answer:

Answer: -5(7+2(-7))+15((7)+2(-7)) = -70

im not sure

Related Questions

Consider a disease whose presence can be identified by carrying out a blood test. Let p denote the probability that a randomly selected individual has the disease. Suppose n individuals are independently selected for testing. One way to proceed is to carry out a separate test on each of the n blood samples. A potentially more economical approach, group testing, was introduced during World War II to identify syphilitic men among army inductees. First, take a part of each blood sample, combine these specimens, and carry out a single test. If no one has the disease, the result will be negative, and only the one test is required. If at least one individual is diseased, the test on the combined sample will yield a positive result, in which case the n individual tests are then carried out. [The article "Random Multiple-Access Communication and Group Testing"† applied these ideas to a communication system in which the dichotomy was active/idle user rather than diseased/nondiseased.] If p = 0.15 and n = 5, what is the expected number of tests using this procedure? (Round your answer to three decimal places.)
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Find the measure of x1.
{
83°
41
{
41 = [?]

Answers

Answer:

Solution given:

< 1+ 83°= 180 [co- interior angle]

<1=180-83=97°

<1=97° is your answer

Please help thank you!

Answers

C. is the answer

.....

Please help me with this if you know how to do it

Answers

9514 1404 393

Answer:

5. stretch/compress

6. horizontal shift

7. vertical shift

Step-by-step explanation:

Consider the form ...

g(x) = a·f(x -h) +k

This set of transformations is ...

vertical expansion by a factor of 'a'
right shift by h units
upward shift by k units

Comparing this to your questions, with f(x) = x^2, you have ...

5. 'a' effects stretch/compress

6. h effects horizontal shift

7. k effects vertical shift

Jimmy is a flag person and earned $321.10 last week for 32.5 hours work. What is his hourly wage? *Your answer

Answers

The answer should be 9.88

* 9. Two fifths of what number is 120?
2/5

Answers

Answer:

300

Step-by-step explanation:

120 ÷ 2/5 = 300

Of = multiply
Let X represent the number we are looking for
2/5 x X=120
2/5X=120
Divide both sides by 2/5
X= 300
L

After an 80% reduction you purchase a new sofa on sale for $108 what was the original price

Answers

Answer:

$540

Step-by-step explanation:

Define x as:

x = the Original Price, in dollars ($)

Then,

x - (80%)x = 108, where we note that (80%)x is the reduction amount, so that

20%x = 108,

0.2x = 108,

x = 108/0.2 = $540

Final answer:

The original price of the sofa was $540.

Explanation:

Question:

After an 80% reduction, you purchase a new sofa on sale for $108. What was the original price?

Detailed Answer:

To find the original price, we need to determine what the 80% reduction represents in terms of the original price. If the sale price is 80% of the original price, then we can set up the equation: sale price = 0.2 * original price. We know the sale price is $108, so we can solve for the original price by dividing both sides of the equation by 0.2: original price = $108 / 0.2 = $540. Therefore, the original price of the sofa was $540.

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