All categories

3 years ago

How many terms are in 3(n - 5) + 7y and -2(3x +5) + 10 (a + b)

1 answer:

5 0

3(n-5)+7y has 2 terms.

-2(3x+5)+10(a+b) has also 2 terms. Because they are doing distributive property, they only count as 1 term all together. :)

You might be interested in

in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l

Eddi Din [679]

Answer:

Distance between the observer and the red car is $250 Sin \frac{\pi}{3}t$

Step-by-step explanation:

Diameter of field = 500 m

Radius of field = $\frac{Diameter}{2}=\frac{500}{2}=250 m$

Let R be the radius and the speed at which the car completes race be w

So, $w=\frac{2\pi}{T}$

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = $\frac{30}{5}=6$

So, $w=\frac{2\pi}{6}=\frac{\pi}{3}$

Refer the attached figure

Angle between car and observer = wt

So, Distance between the observer and the red car is give as A sin wt

So, Distance between the observer and the red car= $250 Sin \frac{\pi}{3}t$

5 0

2 years ago

For a right triangle ABC, you are told that cos A = x and sin A = y. Which option below gives an expression that is equivalent t

loris [4]

Answer:

Step-by-step explanation:

We know that

cos A = adjacent / hypotenuse

sin A = opposite / hypotenuse

Therefore, sin A / cos A =

(opposite / hypotenuse) / (adjacent / hypotenuse)

= (opposite/hypotenuse) * (hypotenuse / adjacent)

= opposite / adjacent

= tan A

Therefore, tan A = sin A / cos A = y/x

8 0

3 years ago

As the Type II error, β,of a statistical test increases, the power of the test _____________.

shutvik [7]

Answer:

decreases.

Step-by-step explanation:

Type II error is one in which we fail to reject the null hypothesis that is actually false. Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. The power of Type II error is 1 - $\beta$ . As the power increases the probability of Type II error decreases.

6 0

3 years ago

i have a number line the second line has -27 my 3rd and 4th line don't have any numbers but, my 5th line has 0

slavikrds [6]

Answer:

I dont speak English so I can't help anyone

5 0

2 years ago

Write the base-ten number for 400 + 50+ 1.

TiliK225 [7]

Answer:

451

Step-by-step explanation:

8 0

2 years ago