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4 years ago

How many terms are there in the following expression: 3a + 3ab + 7b – 4d?

Mathematics

1 answer:

kherson [118]4 years ago

3 0

A term is a single constant or variables that have non-zero coefficients.

Since there are 4 terms with non-zero coefficients in the following expression, there are 4 terms.

Hope this helps.

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K=1/2 mv squared, determined m when v=30 and k=4500.

WITCHER [35]

Given the expression:

$\text{ k = }\frac{1}{2}mv^2$

At v = 30 and k = 4,500 , let's determine m.

$\text{ k = }\frac{1}{2}mv^2$ $\frac{2k}{v^2}\text{ = m }\rightarrow\text{ m = }\frac{2k}{v^2}$

We get,

$\text{ m = }\frac{2k}{v^2}$ $\text{ = }\frac{2(4,500)}{(30)^2}$ $\text{ = }\frac{9,000}{900}$ $\text{ m = 10}$

Therefore, m = 10.

7 0

2 years ago

Just an easy question for 100 Points!<br> Check my other easy 100 point questions :)

skad [1K]

y=x+5

Shifted 5units left

y=3/8

Horizontally Streched by a factor 8/3 parallel to x axis

y=-x-2

Reflection by y axis as x will be negative and shifting 2 units right

y=6x+1

vertically streched by a factor 6 and shifting 1 units left

y=x-11

Shifting 11 units left

y=8x

Horizontally streched by 1/8 factor

3 0

2 years ago

Which equation represents the line that passes through points 0,6 and 2,0

Archy [21]

Answer:

y = -3x + 6

Step-by-step explanation:

5 0

3 years ago

Does anyone understand and can help me asap?

nydimaria [60]

Answer:

see below

Step-by-step explanation:

Circumference of circle = 2πr =dπ

Area of circle =πr²

1) Circle1 d =4 in, r =2 in

Circumference of circle1 =4π in

Area of circle1 = 2²π =4π in²

2) Circle2: d =3 in, r =1.5 in

Circumference of circle2 =3π in

Area of circle2 = 1.5²π =2.25π in²

3) Circle3: r =1 in, d =2 in

Circumference of circle3 =2π in

Area of circle3 = 1²π =π in²

4) Circle4: r =2 1/2 in = 2.5 in, d =5 in

Circumference of circle4 =5π in

Area of circle4 = 2.5²π = 6.25π in²

5) 2/3 of the Area of circle1 = (2/3)*4π in²= (8/3)π in²

6) 1/2 of the Area of circle2 = (1/2)*2.25π in² = (1/2)*(9/4)π in² = (9/8)π in²

7) 1/4 of the Area of circle3 = (1/4)π in²

8) 1/3 of the Area of circle4 = (1/3)* 6.25π in² =(1/3)*(25/4)π in² = (25/12)π in²

6 0

3 years ago

My teacher says everything is there to answer this question but I don't know. Someone please explain.

diamong [38]

We can start with the basics. What we know is that this entire trip took 6 hours. So the travelers were able to walk on the level, uphill, and downhill in a total of 6 hours.

A level mile takes 1/4 of an hour (15 minutes). An uphill mile takes 1/3 of an hour (20 minutes). A downhill mile takes 1/6 of an hour (10 minutes). So, to go and return over the same mile takes half an hour. This means that in 6 hours, they went 12 miles and came 12 miles back. So they went a total of 24 hours.

If the 12 miles had been all level, it would have taken approximately 3 hours. It the 12 miles had been all uphill, it would have taken approximately 4 hours. When reaching the peak, 3.5 hours would have been the approximate time it took them to reach the top since it is in between. <span />

5 0

3 years ago