All the corners of a rectangle is equal to 90 degrees. So you need to set (x-1) and (2x+10) equal to 90 and then solve for x.
(x - 1) + (2x + 10) = 90
<em>Combine the like terms...
</em>3x + 9 = 90
<em>Subtract both sides by 9...
</em>3x + 9 - 9 = 90 - 9
3x = 81
<em>Divide both sides by 3...
</em><em>3x = 81
</em>(3x) / 3 = 81 / 3
x = 27
Answer:
5
Step-by-step expTo find IQ Range, you take the Third Quartile and subtract it by the First Quartile to get your answer.
<span>Greetings!
"One million four hundred ninety-six thousand seven hundred seventy -two in standard form."...
First start at the end of the number:
Two is in the ones place: 2
Seven is in the tens place: 72
Seven is in the hundreds place: 772
Six is in the thousands place: 6772
Nine is in the ten-thousands place: 96772
Four is in the hundred-thousands place: 496772
One is in the millions place: 1</span>496772
The number in standard form is: 1496772
Hope this helps.
-Benjamin
Answer:
157 ft, since you didn't put if it was a diameter of a circle or not I just guessed it was a circle.
Answer:
x = ± sqrt(43)
Step-by-step explanation:
2x^2 - 28 = x^2 + 15
Subtract x^2 from each side
2x^2-x^2 - 28 = x^2-x^2 + 15
x^2 -28 = 15
Add 28 to each side
x^2 - 28 +28= 15+28
x^2 = 43
Take the square root of each side
sqrt(x^2) = ± sqrt(43)
x = ± sqrt(43)
