3 years ago

Which is the axis of symmetry of a parabola with y^2=-8x^2

Mathematics

1 answer:

yawa3891 [41]3 years ago

5 0

It would be y^8 = 12^5

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. The fourth grade class is donating 100 clothing items to charity. 63 hundredths of the items are sweaters and 0.20 of the item

inessss [21]

Answer: 17/100

Step-by-step explanation:

63/100 is sweaters and 20/100 is jeans and when you add them together you get 83/100. 100/100-83/100=17/100

6 0

2 years ago

A new toy hits the local store. Sales (in hundreds) increase at a steady rate for several months, then decrease at about the sam

Montano1993 [528]

Answer:

Option A.

Step-by-step explanation:

It is given that, sales (in hundreds) for several months can be modeled by the function:

$S(m)=-0.625|m-8|+5$

We need to find the month in which 400 toys were sold.

Substitute S(m)=4 in the given function.

$4=-0.625|m-8|+5$

$4-5=-0.625|m-8|$

$-1=-0.625|m-8|$

$\dfrac{-1}{-0.625}=|m-8|$

$1.6=|m-8|$

Now,

$\pm 1.6=m-8$

$1.6=m-8$ or $-1.6=m-8$

$1.6+8=m$ or $-1.6+8=m$

$9.6=m$ or $6.4=m$

Approx the value to the next whole number.

$m\approx 10$ or $m\approx 7$

It means, 400 toys were sold on 7th and 10th month.

Therefore, the correct option is A.

5 0

3 years ago

At a music store, the price of a set of speakers is $245, plus the sales tax of 6.5%. What is the total cost of the speakers, in

amm1812

Its 6.0 i think im sory is wrong

8 0

3 years ago

Read 2 more answers

Tan30°+cos30°÷tan30°×cos30°

jonny [76]

Answer:

{1/√3+1/2} ÷{1/√3× 1/2}

(2+√3)/2√3÷(1/2√3)
2+√3+1 /2√3
(2+1 )+√3 /2√3
3 +√3 /2√3

4 0

3 years ago

If the probability of an outcome is 2/9, what are the odds against that outcome?

IrinaVladis [17]

Answer:

7/9

Step-by-step explanation:

If the chances of an outcome are 2/9, the odds against it can be found by subtracting that from 1.

1 - 2/9

= 7/9

So, the odds against that outcome are 7/9

7 0

2 years ago