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3 years ago

The graph of the function f(x)=-(x+6)(x+2) is shown below. What statement about the function is true ?

Mathematics

1 answer:

arlik [135]3 years ago

7 0

Answer:

Step-by-step explanation:

in x<-4 the derivative is positive so the function is increasing.

in x>-4 the derivative is negative so the function is decreasing

increasing in (-infinity,-4)

decreasing in (-4,infinity)

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4 Abi is going to buy ingredients to make 65 hot chocolate drinks.

Semenov [28]

Answer:

To make 65 chocolate drinks, she needs:

12 g of chocolate powder and 5 marshmallows per drink.

Then she needs:

12g*65 = 780 grams of chocolate powder.

We know that the chocolate powder comes in jars of 250g, such that each one costs £2.99

If she buys 3 jars, she will have: 3*250g = 750g

So she will not have enough, then she needs to buy 4 jars.

Then in chocolate powder, she will pay 4 times £2.99 = £11.96

And for marshmallows, she needs:

65*5 = 325 in total.

Marshmallows come in bags of 120, then the number of packs that Abi needs to buy is:

325/120 = 2.7

That should be rounded up (because she can not buy a 0.7 of a bag)

Then she needs 3 bags, and each bag costs £1.45

Then the total cost in marshmallows is 3*£1.45 = £4.35

8 0

3 years ago

Find the area of the irregular figure. Round to the nearest hundredth.

lbvjy [14]

Answer:

16 sq units

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Wylie is renting a bicycle from a local shop that charges $5 to rent a helmet, plus an hourly rate of $8.50 for the bike. For ho

KonstantinChe [14]

Idrk like I don’t but I do

7 0

3 years ago

I do not understand this question and it will be kind if you help a kid in need

Nimfa-mama [501]

Answer:

x = $\frac{mn(q-p)}{n-m}$

Step-by-step explanation:

collect the fractional terms on the left side of the equation and other terms on the right side

subtract $\frac{x-n}{n}$ from both sides

$\frac{x-m}{m}$ - $\frac{x-n}{n}$ + p = q

subtract p from both sides

$\frac{x-m}{m}$ - $\frac{x-n}{n}$ = q - p

We require the fractions to have a common denominator of mn

multiply the numerator/denominator of the first fraction by n and the numerator/denominator of the second fraction by m

$\frac{n(x-m)}{mn}$ - $\frac{m(x-n)}{mn}$ = q - p

distribute and simplify the numerators of the fractions

$\frac{nx-nm-mx+mn}{mn}$ = q - p

$\frac{nx-mx}{mn}$ = q - p

factor out x from each term on the numerator

$\frac{x(n-m)}{mn}$ = q - p

multiply both sides by mn

x(n - m) = mn(q - p)

divide both sides by (n - m)

x = $\frac{mn(q-p)}{n-m}$ → n ≠ m

5 0

4 years ago

the table shows the amount for seven months of the year. which is the median amount of rainfallnin the town from march to septem

dangina [55]

I can’t view the table can you put it again?

6 0

3 years ago