2 years ago

Calculate the area of blue paint on the front of this house..

Mathematics

1 answer:

arsen [322]2 years ago

8 0

Answer:

21 m

Step-by-step explanation:

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Pls help i am stuck no links in the answer

yarga [219]

22 degrees; you can subtract 180-158 to get the measure of U and U is equal to S because of parallel lines

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3 years ago

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Find the selling price of a $249.50 cell phone with a 30% markup

algol [13]

Answer:

$324.35

Step-by-step explanation:

249.50x74.80=74.85. markup=add, 74.85+249.50=324.35

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3 years ago

What is the independent and dependent variable in this situation?

lord [1]

Cid Sam is a way to remember
C -control S - SAME (keep the same)

I -independent A- alter

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3 years ago

On a map, the distance between two towns is 2. 5 inches, and 1 inch represents 6 miles. What is the actual distance between the

Aleks04 [339]

Answer:

15 miles

Step-by-step explanation:

1/2 inch = 3 miles

1 inch = 6 miles

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2 years ago

What is the solution set of x2 + 5x + 1 = 0?

DerKrebs [107]

Answer:

$\huge\boxed{\left\{-\dfrac{5+\sqrt{21}}{2};\ \dfrac{-5+\sqrt{21}}{2}\right\}}$

Step-by-step explanation:

$x^2+5x+1=0\\\\\text{Use the quadratic formula:}\\\\\text{For}\ ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta < 0,\ \text{then the equation has no real solution}\\\text{if}\ \Delta=0,\ \text{then the equation has one real solution}\ x=\dfrac{-b}{2a}\\\text{if}\ \Delta>0,\ \text{then the equation has two real solution}\ x=\dfrac{-b\pm\sqrt{\Delta}}{2a}$

$\text{We have}\\\\a=1,\ b=5,\ c=1\\\\\Delta=5^2-4(1)(1)=25-4=21>0\\\\x=\dfrac{-5\pm\sqrt{21}}{2(1)}=\dfrac{-5\pm\sqrt{21}}{2}$

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3 years ago