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Liono4ka [1.6K]
3 years ago
11

Joyce is trying to solve the equation y = x2 − 8x + 7 using the quadratic formula. She has made an error in one of the steps bel

ow. Find the step where Joyce went wrong.
Steps are attached



Can someone Please find where Joyce went wrong? (which step)

Mathematics
1 answer:
FromTheMoon [43]3 years ago
3 0
Step 1:

She plugged in -8 for b instead of 8

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It was estimated that 650 people would attend bowling night, but 676 people actually attended.
Cerrena [4.2K]
Simply divide 650/676=.9615 or 96.15%. So there was 3.85% error
4 0
2 years ago
Please use ( y = mx +b )
Sindrei [870]

Answer:

y= 2/5-1

Step-by-step explanation:

You get the 2/5 because you go 2 to the right and go 5 up, the -1 is because the x-int is at -1.

6 0
3 years ago
Homework ree
umka21 [38]

Answer:

325 miles and 77 dollars

Step-by-step explanation:

First, create equations. Let x equal the miles driven. The first plan expression  is 38 + 0.12x and the second plan expression is 51 + 0.08x. Setting these equal and solve for x: 38 + 0.12x = 51 + 0.08x -> 0.04x = 13 -> x = 325 miles.

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6 0
3 years ago
Kendra bought a piece of fabric that was 14 feet long.Lisa bought a piece of that was 3 yards long.Kendra wanted to cut her fabr
marusya05 [52]

Answer:

6

Step-by-step explanation:

8 0
3 years ago
There are 8 volunteers during the weekday and only 5 volunteers on the
MaRussiya [10]

Answer:

Monday is a weekday, with which there would be 8 volunteers.

In turn, Saturday is a weekend day, with which there would be 5 volunteers.

2 people will not be helped if the ratio of volunteers to the person needing help is 1:1.

Step-by-step explanation:

Given that there are 8 volunteers during the weekday and only 5 volunteers on the weekend, to determine how many volunteers do you have on Monday and Saturday the following logical reasoning must be carried out:

Monday is a weekday, with which there would be 8 volunteers.

In turn, Saturday is a weekend day, with which there would be 5 volunteers.

In turn, if you have 10 people who need help from the volunteers on Monday, to determine how many will not get helped if the ratio of volunteers to the person needing help is 1: 1 the following logical reasoning must be carried out:

10: 8

1: 1

10 - 8 = 2

Thus, 2 people will not be helped if the ratio of volunteers to the person needing help is 1:1.

6 0
3 years ago
Read 2 more answers
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