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2 years ago

Can someone help me D: it's math (if you don't know, I'm terrible at math, so please help lol)

Mathematics

2 answers:

Nataly [62]2 years ago

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Levart [38]2 years ago

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Can’t see anything you did not download an image

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If cos 35 degrees =8/X , find X (3sf)

777dan777 [17]

The answer is in the file below

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3 years ago

Finn is wrapping a package that measures 12 long ,6 wide and 3 tall. He wants to know the least amount of wrapping paper that he

garri49 [273]

Answer:

12*6*3=216

Step-by-step explanation:

First multiply !2 and 6 to get 72 .Then multiply 72 and 3 to get 216.

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2 years ago

Solve for x in the equation.

labwork [276]

Answer:

The solution is $\displaystyle x=1\pm \sqrt{47}$ . Fourth option

Explanation:

Solve for x:

$2x^2+3x-7=x^2+5x+39$

Move all the terms from the right to the left side of the equation, a zero in the right side:

$2x^2+3x-7-x^2-5x-39=0$

Join all like terms:

$x^2-2x-46=0$

The general form of the quadratic equation is:

$ax^2+bx+c=0$

Solve the quadratic equation by using the formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

$\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}$

$\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}$

$\displaystyle x=\frac{2\pm \sqrt{188}}{2}$

Since 188=4*47

$\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}$

Take the square root of 4:

$\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}$

Divide by 2:

$\displaystyle x=1\pm \sqrt{47}$

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0

2 years ago

What is 3 3/8 tons equal to in pounds?

guapka [62]

1 ton is equivalent to 2000 pounds

we have to find how many pounds 3 3/8 tons are equal to

if 1 ton --> 2000 pounds

we can break down the fraction into 3 + 3/8

then 3 tons --> 2000 x 3 = 6000 pounds

3/8 ton ---> 2000 x 3/8 = $\frac{3*2000}{8} = \frac{6000}{8} = 750 pounds$

after adding 6000 + 750 = 6750 pounds

answer is 6750 pounds

7 0

3 years ago

Read 2 more answers

The number 40 cannot be decomposed into prime factors<br><br>True<br>either<br>False

dusya [7]

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {\large{\textsf{\textbf{\underline{\underline{Answer : \:}}}}}}$

False, because the number 40 is a composite number, those that cannot be broken down are called Prime Numbers.

Prime numbers are numbers that are used to decompose any number, but prime numbers cannot be decomposed, since they only have two Divisors, which are 1 and itself.

$~\sf{Atte: Murdock:)}$

3 0

1 year ago

Read 2 more answers