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mina [271]
3 years ago
7

Pls hurry!!!!!!! What value(s) of x will make x^2 = 100 true?

Mathematics
1 answer:
Darya [45]3 years ago
4 0

Answer:

\large\boxed{\fcolorbox{x=10 }{}{}} OR \large\boxed{\fcolorbox{x=-10 }{}{}}

Let's solve the equation step-by-step:

First, you must find the square root:

x = ± \sqrt{100}

We know that 10 × 10 = 100 and -10 x -10 is 100

that means that the square root is either  10 or -10

And we also know that 10^2 -10^2 are both 100

meaning that x = 10^2 OR -10^2

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Dodi drove across Canada and into the Yukon last summer. They travelled altogether 11760 kilometers over 42 days.
Rainbow [258]

Answer:

280

Step-by-step explanation:

divide 11760 by 42 and you get 280 which shows they traveled 280 kilometers in 1 day

4 0
3 years ago
What is the least whole number that replaces blank divided by 21 greater than 13
Phantasy [73]

You want to find the value of __ such that

... __ / 21 > 13

Multiply by 21.

... __ > 21·13

... __ > 273


The smallest whole number greater than 273 is 274.


_____

That is, 274/21 > 13

3 0
4 years ago
Read 2 more answers
Perform the indicated operation. Be sure the answer is reduced.<br><br> d+3/8d -2d+1/10d^2
mars1129 [50]

Answer:

\frac{d(4d-25)}{40}

Step-by-step explanation:

Given: d+\frac{3}{8}d-2d+\frac{1}{10}d^2

To find: the value of given expression in reduced form

Solution:

d+\frac{3}{8}d-2d+\frac{1}{10}d^2=\frac{d}{1}+\frac{3}{8}d-\frac{2d}{1}+\frac{1}{10}d^2

Here, L.C.M(1,8,1,10)=40

( L.C.M of two or more numbers is the smallest positive number that is their multiple )

So,

d+\frac{3}{8}d-2d+\frac{1}{10}d^2=\frac{d}{1}+\frac{3}{8}d-\frac{2d}{1}+\frac{1}{10}d^2\\=\frac{40d+15d-80d+4d^2}{40}\\=\frac{\left ( 40d+15d-80d \right )+4d^2}{40}\\=\frac{\left ( -25d \right )+4d^2}{40}\\=\frac{4d^2-25d}{40}\\=\frac{d(4d-25)}{40}

3 0
3 years ago
What is 19.2 x 10^8 minutes in hours
Ksju [112]
<span>19.2 x 10^8 minutes in hours is

32 000 000 hours
</span>
8 0
3 years ago
50 PTS Please do not steal or I will report
Diano4ka-milaya [45]

Answer:The quadratic formula helps us solve any quadratic equation. First, we bring the equation to the form ax²+bx+c=0, where a, b, and c are coefficients. Then, we plug these coefficients in the formula: (-b±√(b²-4ac))/(2a) .The four methods of solving a quadratic equation are factoring, using the square roots, completing the square and the quadratic formula.

Step-by-step explanation: 6x² + 11x - 35 = 0.

2x² - 4x - 2 = 0.

-4x² - 7x +12 = 0.

20x² -15x - 10 = 0.

x² -x - 3 = 0.

5x² - 2x - 9 = 0.

3x² + 4x + 2 = 0.

-x² +6x + 18 = 0.

8 0
3 years ago
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