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2 years ago

−5y2−3y−2, when y=2.

Mathematics

1 answer:

sergij07 [2.7K]2 years ago

6 0

y=2

-5(2)²-3(2)-2

-5(4)-3(2)-2

-20-6-2

=12

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Help me plzz show work plz

iren2701 [21]

Answer:

Step-by-step explanation:

Use the formula for radius and circle circumference.

$d=2r \\ \\ C=2\pi r$

Since we know the diameter, if we divide that by 2, we can get the radius.

$29.5/2=14.75$

Now we can plug that value into the circumference formula to get the circumference.

$C=2(14.75)\pi \\ \\ C=29.5\pi \\ \\ C=93$

*Since we're rounding to the nearest inch.

7 0

3 years ago

bill has twice the number of books as Bob does. Together they have 52 books. How many books does Bill have?

rjkz [21]

Answer:

Bill has 13 books. Bob has 26 books.

Step-by-step explanation:

52 divided by 2 = 26

26 divided by 2 = 13

13 x 2 = 26 and 26 + 26 = 52

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3 years ago

Question

denpristay [2]

Answer:

63x ft³

Step-by-step explanation:

To find the the volume of a rectangular prism you multiply all the dimensions (7 feet, x feet, and 9 feet in this case).

7×x×9=

63×x=

Volume= 63x ft³

8 0

2 years ago

-2/3x greater than or equal to 7

Romashka-Z-Leto [24]

X = or > -21/2 with the problem.

8 0

3 years ago

How to evaluate the expression

jasenka [17]

Answer:

Step-by-step explanation:

$4^{5}$ can be expressed as $2^{(2)(5)}$ = $2^{10}$

Similarly $4^{8}$ can be expressed as $2^{(2)(8)}$ = $2^{16}$

Numerator becomes:

$2^{10}$ · $-2^{9}$ = $-2^{19}$

Denominator becomes:

$2^{16}$ · $-2^{3}$ = $-2^{19}$

Since numerator = Denominator,

Answer = 1

Edit reason: typo

4 0

3 years ago