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3 years ago

NEED HELP FAST ON THESE 2 questions

Mathematics

1 answer:

Fofino [41]3 years ago

7 0

Answer:

hope it helped u a lot

Step-by-step explanation:

plss give me braniest

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What is the value of 9 in 309.15

stira [4]

The answer is tens because all the numbers the decimal end with an ‘s’, and all the numbers the decimal end with a ‘ths’.

4 0

3 years ago

PLEASE HELP!!!!!!!!!!!!

hammer [34]

Answer:

The answer to your question is: Option B is correct

Step-by-step explanation:

Which expression is equivalent to the square root of 80?

Find the prime factors of 80

80 = 2⁴5 then $\sqrt{80} = 4\sqrt{5}$ = $\sqrt{2^{2}2^{2} 5 }$

Option A which is 4 square root of 2 times the square root of 5 This option is incorrect

Option B which is square root of 2^4 times the square root of 5 This option is correct

Option C which is the square root of 2 times the square root of 2 times the square root of 5 This option is incorrect

Option D which is the square root of 2^2 times the square root of 2^2 times the square root of 5^2 This option is incorrect

6 0

3 years ago

Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much o

Art [367]

Answer:

The value will be used as the point estimate for the mean endowment of all private colleges in the United States is of 180.975 millions of dollars.

Step-by-step explanation:

When we have a sample, the mean of the sample is used as the point estimate for the mean of the entire population.

What value will be used as the point estimate for the mean endowment of all private colleges in the United States?

We have to find the mean of the 8 colleges. So

$M = \frac{60.2 + 47.0 + 235.1 + 490.0 + 122.6 + 177.5 + 95.4 + 220.0}{8} = 180.975$

The value will be used as the point estimate for the mean endowment of all private colleges in the United States is of 180.975 millions of dollars.

4 0

3 years ago

Andrea baked h muffins.Violet baked 8 fewer muffins than Andrea.Find the average number of muffins baked by both girls,in terms

faltersainse [42]

The number of muffins Andrea baked: h
The number of muffins Violet baked: h-8

In order to find the average, we add the two expressions and divide them by 2.
(h)+(h-8)=2h-8
(2h-8)/2=h-4

The average number of muffins baked is h-4 muffins.
Hope this helped!

5 0

3 years ago

A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and 1. How m

nadya68 [22]

Answer:

There is no solution to this.

Explanation :

We have a double system of equation to solve. Let x be the big number and let y be the smaller number, such that y < x.

x is equal to twice a smaller number plus 3, which translates into : x = 2y + 3

and x is equal to twice the sum of the smaller number and 1 : x = 2 * (y + 1)

We get this system to solve : $\left \{{{x=2y+3} \atop {x=2(y+1)}} \right. \left \{{{x-2y=3} \atop {x-2y=2}} \right.$

It's either x minus 2y equals 3, or x minus 2y = 2 but it can't be both. No solutions exist because the situation describes two lines that have the same slope and different y-intercepts

7 0

3 years ago