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2 years ago

*what shape is the cross section (giving brainliest if correct !)

Mathematics

2 answers:

Rainbow [258]2 years ago

7 0

Answer:

Pentagon

Step-by-step explanation:

Hope this helps!! :D

9966 [12]2 years ago

3 0

Answer:

Step-by-step explanation:

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Solve x^4-10x^2+9=0 <br> please and thank you

Sloan [31]

Answer:

1,3

Step-by-step explanation:

=(x^2-1)(x^2-9)=0

x=1,x=3

5 0

3 years ago

What is the shorter length 60in or 8 feet

Kryger [21]

1 foot = 12 inches

12 * 5 = 60 and 8 * 12 = 96

Therefore, 60 inches is a shorter length than 8 feet.

4 0

3 years ago

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In the sport competition, France won more gold medals than Italy, who won more gold medals than Korea. If the total number of

worty [1.4K]

Answer:

France = 15, Italy = 14, Korea = 13

Step-by-step explanation:

We are trying to find 3 consecutive integers whose sum is 42, then the highest integer will be France's gold medal count since they won the most, the second highest will be Italy, and the lowest integer will be Korea.

let n be the first/smallest integer, since they are consecutive, the next two integers are n+1 and n+2. Summing these, we get n + (n+1) + (n+2) = 42. Solve to get n = 13, n + 1 = 14, and n + 2 = 15

5 0

3 years ago

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Find the inverse of the following function

KatRina [158]

f-¹(x)= $\frac{2-7x}{x+2}$

Answer:

Solution given:

f(x)= $\frac{-2x+2}{x+7}$

Let f(x)=y

y= $\frac{-2x+2}{x+7}$

Interchanging role of x and y

x= $\frac{-2y+2}{y+7}$

doing crisscrossed multiplication

x(y+7)=-2y+2

now solve it:

xy+7x=-2y+2

keep like terms in one side

xy+2y=2-7x

take common

y(x+2)=2-7x

make a value of y

y= $\frac{2-7x}{x+2}$

So,

f-¹(x)= $\frac{2-7x}{x+2}$

3 0

2 years ago

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Mrs. Gomes found that 40% of students at her high school take chemistry. She randomly surveys 12 students. What is the probabili

VMariaS [17]

Binomial formula is :
$P ( k = 4 ) = nCk * p ^{k}(1-p) ^{n}= \\ =495 * 0.4 ^{4}* ( 0.6 ) ^{8}=$
= 495 * 0.0256 * 0.0167961 =
= 0.21284 ≈ 0.213
Answer: C ) 0.213

3 0

3 years ago

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