F(x)= -x^2+3x-8 Is the quadratic function a minimum or maximum

Look at the expression below. (Math Problem Attached)

aleksklad [387]

Answer:

its 6x ,6 and 3(y+2)

Step-by-step explanation:

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8 0

3 years ago

A circle has a radius of 3 in, what is the length of the arc created by an angle measure 1 radian?

Luba_88 [7]

Answer:

3 inches

Step-by-step explanation:

i'm 98% sure

5 0

3 years ago

Can I get help on each one and not just answers please

harina [27]

1. To get the decimal, you divide 8 by 7 and add that to the back of ten. One eighth is .125. .125*7= 0.875, so your answer is 10.875.

2. A fifth is .2, so your answer is 9.8.

3. One ninth is .11..., which that repeating forever, so 8/9 is .89. You round the last eighth up.

4. 11 goes into 24 twice. Subtract 22 to get 2. Add a decimal and a zero. 11 goes into 20 once. Subtract 11 to get 9. Add another zero. 11 goes into 90 8 times. Subtract 88 to get 2. So your answer is 9.2. Sorry, it's hard to do long division on Brainly haha.

5. 6/27 is equal to 3*2/3*9, which is equal to 2/9. 2/9s is .22...

6. I can't see this one.

7. 8.7/1.4 is basically your problem. Move over the decimals in both of them so that you have 87/14 so that you can actually divide. So put them in long division format, and add a zero so you have 140. 87 goes in once, and you subtract 87 from 140 to get 53. Add another zero. 87 goes into 530 six times. Subtract 522 to get 8. Round .16 to .2 Your answer is .2

8. I'll teach you a fun property. Dividing is the same as multiplying by the reciprocal of something - or the upsidedown version. So if you have .1/1, then you multiply .365 by 1/.1. When you divide by .1, you get 3.65.

9. Do the same thing here. .01/1 flipped is 1/.01. You get 4270.9.

10. Move the decimal over the left three times: .00247

11. Move the decimal over to the left three times: .00039

12. Can't read all of this one.

Hope I helped!

4 0

4 years ago

Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 girls and boys in

expeople1 [14]

Answer: She can randomly survey 50 seventh-graders in the school.

Step-by-step explanation: To get the best result without wasting to much time means she cannot afford to survey every student. To receive the best results it should be unbiased so random is the way to go. Randomly surveying 50 girls in her school does not guarantee that those girls are all seventh graders so the best answer is She can randomly survey 50 seventh-graders in the school.

7 0

4 years ago

Read 2 more answers

Pennies made before 1983 are 97% copper and 3% zinc, whereas pennies made after 1983 are 3% copper and 97% zinc. listed belo

weqwewe [10]

The table in the attached figure

Pennies made before 1983
Part a) find the mean
we have
[3.1047,3.1082, 3.1582, 3.0776, 3.1276, 3.1035]
Mean 1=[3.1047+3.1082 + 3.1582 + 3.0776 + 3.1276 + 3.1035]/6
Mean 1=3.1133 grams

the answer part a) is
The mean weight of the pennies made before 1983 is 3.1133 grams.

Part b)
to find the Median, place the numbers in value order and find the middle.
[3.1047,3.1082, 3.1582, 3.0776, 3.1276, 3.1035]
[3.0776, 3.1035, 3.1047,3.1082, 3.1276, 3.1582]
(3.1047+3.1082)/2=3.10645 grams

the answer part b) is
The median weight of the pennies made before 1983 is 3.10645 grams.

Pennies made after 1983
Part c) find the mean
we have
[2.4842, 2.4828, 2.5024, 2.4997, 2.4907, 2.4956]
Mean 2=[2.4842 + 2.4828 + 2.5024 + 2.4997 + 2.4907 + 2.4956]/6
Mean 2=2.4926 grams

the answer part c) is
The mean weight of the pennies made after 1983 is 2.4926 grams.

Part d)
to find the Median, place the numbers in value order and find the middle
[2.4842, 2.4828, 2.5024, 2.4997, 2.4907, 2.4956]
[2.4828, 2.4842, 2.4907, 2.4956, 2.4997, 2.5024]
[2.4907 +2.4956]/2=2.49315

the answer part d) is
The median weight of the pennies made after 1983 is 2.49315 grams.

Part e) compare the means
Find the percentage difference
 the percentage difference is the difference between the new value and the old value, divided by the old value
so
new value=2.4926 grams
old value=3.1133 grams
[3.1133-2.4926]/3.1133------> 0.20-----> 20%
that means
the difference in the means is considerable to be greater than 5%

7 0

3 years ago