All categories

3 years ago

PRE- algebra !!!!!

Mathematics

1 answer:

kari74 [83]3 years ago

4 0

Answer:

6/7

Step-by-step explanation:

because Ruth has scored 9 or more points in <u>6</u> games so far out of the <u>7 total</u> games she's played

You might be interested in

Find the highest common factor of 35 and 8C.

Kaylis [27]

Answer:

Factors of 35 = 1, 5, 7 and 35

Factors of 8= 1, 2, 4, 8.

common = 1

7 0

2 years ago

Find the quotient -14/7

AVprozaik [17]

The quotient is -2.

4 0

3 years ago

90% of 11 is what number

umka2103 [35]

It would be: 11 * 90/100
= 11 * 0.90 = 9.9

So, your final answer is 9.9

Hope this helps!

8 0

3 years ago

If you could be a doll and help me, that would be wonderful :)

NikAS [45]

The answer to this question of yours is B

7 0

3 years ago

The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/

VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

$A = \frac{1}{2}bh$ (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

$\frac{dA}{dt} = \frac{1}{2}(\frac{db}{dt}h + \frac{dh}{dt}b)$

We can find the base by solving equation (1) for b:

$b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm$

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

$2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)$

$\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min$

Therefore, the base is decreasing at 2 cm/min.

I hope it helps you!

7 0

2 years ago