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2 years ago

0.4(3k – 0.6) plz help

1 answer:

8 0

0.4 times 3k is 1.2
Multiply the 2 number between the parentheses.

0.4 times 0.6 is 0.24
Multiply the other 2 numbers

1.2-0.24= 0.96
Subtract the 2 numbers that you got after multiplying.

Answer:0.96

Hope this helps you!!!

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A survey question revealed that at a particular college 87 percent of students worked at least sometime during their undergradua

Elanso [62]

Answer:

The correct option is A. 198 degrees

Step-by-step explanation:

Consider the provided information.

87 percent of students worked at least sometime during their undergraduate career and 13 percent did not work at all.

Another question showed that 32 percent of the students worked throughout their undergraduate career.

87 percent of the students worked at least sometime during the college. Out of them 32% worked throughout the college.

Therefore, the students who worked sometime during their undergraduate career, but not throughout are:

(87-32)% = 55% .

As we know the angle measure in circle is 360 degrees.

55% of 360° is:

$\frac{55}{100}\times360= 198$

Hence, the measure of central angle would be 198 degrees

Therefore, the correct option is A. 198 degrees

8 0

3 years ago

Can u help me find the Answer

den301095 [7]

-20x-16

= -4(5x + 4)

I think 4 ×-5 = -20x

4×-4 = -16x

7 0

2 years ago

The base of a trinagle is increased by 20% and it’s height is increased by 30%. By what percent is the area of the triangle incr

Molodets [167]

Lets say the base is x and the height is y. The new base would be 1.2x and the new height would be 1.3y

Area of a triangle is base times height divided by 2:

1.2x*1.3y/2 = (1.2*1.3 + x*y)/2 = 1.56xy/2 = 0.78xy = 78% of xy

But a normal area would be 50% of xy

78% - 50% = 38%

ANSWER: 38% increase

4 0

3 years ago

Marian Abelt tests video games.She earns $8.125 per hour.Last week she worked 35.50 hours.What was her straight-time pay?

Vlad1618 [11]

Her straight-time pay was $288.44.

7 0

2 years ago

Which statements are true? (look at picture)

Makovka662 [10]

Answer:

D is true, E is true, F is true

Step-by-step explanation:

Hello,

n is an odd number it means that n = 2a+1 where a is integer

$n^2-1=(2a+1)^2-1=4a^2+4a+1-1=4a(a+1)$

this is not an odd number

$n(n-1)=(2a+1)2a$

this is not an odd number

$(n-1)^2=(2a+1-1)^2=4a^2$

this is not an odd number

$n^2+2=(2a+1)^2+2=4a^2+4a+1+2=4a^2+4a+3= 2(2a^2+2a+1)+1$

so this is an odd number

$n(n-2)=(2a+1)(2a-1)=4a^2-1=4a^2-2+1=2(2a^2-1)+1$

so this is an odd number

$(n-2)^2=(2a+1-2)^2=(2a-1)^2=4a^2-4a+1 = 2(2a^2-2a)+1$

this is an odd number

hope this helps

7 0

2 years ago