3 years ago

What is the result of adding -2.9a t 6.8 and 4.4a - 7.3 if a=2 what is the value of the expression

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

2.5

You might be interested in

relationship between two quantities in which the ratio of one quantity to the other quantity quantity is constant

Anastaziya [24]

Proportional Relationship should be the correct answer.

8 0

3 years ago

Evaluate c-2c−2c, minus, 2 when c=7c=7c, equals, 7.

____ [38]

Answer:

the correct answer would be 5

Step-by-step explanation:

when c=7, then we put that value in for c in the equation c-2

c-2

(7)-2

3 0

3 years ago

Hurry please!!! Fast response

AlladinOne [14]

Answer:

$SA= \frac{2}{3} \pi rl+16 \pi r^2$

Step-by-step explanation:

Surface area of the original cone

$SA= \pi r l + \pi r^2... (1)$

When, radius is quadrupled and slant height is reduced to one sixth

$i. e. \: \:r = 4r\: \: \&\:\: l= \frac{1}{6}l$

Plug the above values of r and $l$ in equation (1), new surface area becomes:

$SA= \pi (4r)\times \frac{1}{6} l+ \pi (4r)^2$

$SA= \frac{4}{6} \pi rl+16 \pi r^2$

$\huge \purple {\boxed {SA= \frac{2}{3} \pi rl+16 \pi r^2}}$

8 0

2 years ago

(a) Write 6.27% as a decimal (b) Write 0.084 as a percentage. Please help! :D

IgorC [24]

Answer:

A. 0.0627

B. 8.4%

Step-by-step explanation:

You need to divide by 100 if you want to make the decimal to a percent. If you want to make a percent to a decimal then just multiply by 100.

8 0

3 years ago

Read 2 more answers

Math question please show work for brainliest :)

alukav5142 [94]

Add the numbers at the top of each bar (some numbers you have to guess at). you come up with around 380 to 390. closest answer is B, 388

7 0

3 years ago