3 years ago

Please help!!! find 2(-4) ^2 - 2(2) ^4 + 3^2 - -4^2 + 2^4

Mathematics

1 answer:

Taya2010 [7]3 years ago

5 0

Answer: 9

explanation: simply the expression .

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The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. find the diameter of the base of the cylinder

White raven [17]

Answer:

2 cm

Step-by-step explanation:

h = 14 cm

Curved surface area of a right circular cylinder = 88 cm²

2πrh = 88

$2 * \frac{22}{7}*r*14=88\\\\r = \frac{88*7}{2*22*14}\\\\ r =1 \\\\r = 1 cm$

Diameter = 2 * r = 2 * 1 = 2 cm

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3 years ago

A cookie recipe calls for 2 3/4 cups of chocolate chips and 1 1/3 cup of butterscotch chips. How much is needed all together for

MArishka [77]

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4 1/12

Step-by-step explanation:

2 9/12 + 1 4/12 = 4 1/12

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3 years ago

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Kyle spends an equal amount of money each day. After 4 days, he had 4/5 of his money left. After another 10 days he had $30 left

Elden [556K]

4 days spending equal amounts so if x is how much he spends per day and y is the original amount then 4x=1/5y bc he has 4/5 left meaning what he spent was 1/5 of the original and after 10 more days which was 14 total he spent all but 30 so the total minus 30 will be how much kyle spent so
14x=y-30 which is y=(14x+30) and substitute that in for y in 4x=1/5y so 4x=1/5 (14x+30)
20x=14x+30
6x=30
x=5 and plug that in either of the original equations 4(5)=1/5y
y=100
so he had $100 and spent $5 per day

4 0

3 years ago

Read 2 more answers

The product of two consecutive even integers is 360360. find the integers.

professor190 [17]

There are no 2 consecutive integers which give a product 360360

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3 years ago

Sidneys made $38 more than 3 times Casey’s weekly salary. If x represents Casey’s weekly salary , write an expression for sidney

Harrizon [31]

y=3x+38 is the expression for Sidney's weekly salary.

Step-by-step explanation:

Given,

Casey's weekly salary = x

Let,

y be the weekly salary of Sidney's.

According to given statement;

Sidney makes $38 more than 3 times Casey's weekly salary.

Sidney's weekly salary = 3 times Casey's weekly salary + $38

$y=3x+38$

y=3x+38 is the expression for Sidney's weekly salary.

Keywords: variable, addition

Learn more about variables at:

#LearnwithBrainly

8 0

3 years ago

Please help!!! find 2(-4) ^2 - 2(2) ^4 + 3^2 - -4^2 + 2^4 ​

Please help!!! find 2(-4) ^2 - 2(2) ^4 + 3^2 - -4^2 + 2^4