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3 years ago

What is equivalent to 60+20

Mathematics

2 answers:

Softa [21]3 years ago

7 0

Eighty or 80
hope this helps

Natalka [10]3 years ago

7 0

Answer:

40+40

Step-by-step explanation:

as , 60+20:80

80/2 : 40

&40+40 =80

HOPE OT HELPS YOU ££££

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The equation 9.95 + 0.30s=c gives the cost c in dollars that a website charges for downloading songs. The variable s stands for

IrinaK [193]

Answer:

$20.45

Step-by-step explanation:

First substitute 35 for s

9.95+0.30(35)=c<-----

If you solve this you would get...

$20.45

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3 years ago

A tree casts a shadow of 28 feet. at the same time, a biologist who is 7 feet tall casts a shadow of 2 feet.

lilavasa [31]

Ratio of shadow to object's size = 2/7

Then, size of tree would be: 7/2 * 28 = 7 * 14 = 98 feet

So, your final answer is 98 feet

Hope this helps!

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3 years ago

ZA and ZB are complementary angles. If the measure of ZA is 42°, find the measure of ZB.

Sunny_sXe [5.5K]

Answer: ZB = 48 degree

Explanation:

Complementary angle means 2 angel add together and create a right angle (90 degree).

Thus, ZA + ZB = 90 degree
But ZA = 42 degree

=> 42 degree + ZB = 90 degree
=> ZB = (90 - 42)degree
=> ZB = 48 degree

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3 years ago

The contents of a cell in a spreadsheet are shown below. 3.9157E+9 What number do the contents of the cell represent? A. 3,915,7

Simora [160]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

Which of the following is true about the function y=4*3^x

Trava [24]

Answer:

option-c

Step-by-step explanation:

we are given

$y=4(3)^x$

we will verify each options

option-A:

we can see that exponent is over 3

and it is positive and greater than 1

so, this function is increasing

so, this is FALSE

option-C:

At x=1:

$y=4(3)^1$

$y=12$

At x=2:

$y=4(3)^2$

$y=36$

$\frac{y_2}{y_1} =\frac{36}{12}$

$\frac{y_2}{y_1} =3$

$y_2=3y_1$

So, it is getting tripled

so, this is TRUE

option-b:

we can plug x=0

$y=4(3)^0$

$y=4$

so, this is FALSE

option-d:

we can plug x=1

$y=4(3)^1$

$y=12$

so, this is FALSE

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3 years ago