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3 years ago

8

The product of 41 and a

1 answer:

lyudmila [28]3 years ago

4 0

Answer:41a

Step-by-step explanation: when you multiply a number and a variable it will give you the number and the variable which is the unknown

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The angle of elevation to the top of the Empire State Building in New York is found to be 11 degrees from the ground at a distan

Svetllana [295]

Draw a picture of a building and a one mile (or 5280 feet) distance to a point from the base of the building.

The angle of elevation is given as 11° and we want the height of the building or x.

tan(11°) = x/5280

5280 tan(11°) = x

1026.3 feet = x

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

3 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve. Round to the nearest tenth if necessary.<br> 2x^2 -3x -7 = 0

abruzzese [7]

The quadratic formula is:

$\frac{-b + \sqrt{b^2 - 4ac} }{2a}$ and $\frac{-b - \sqrt{b^2 - 4ac} }{2a}$

In this case, a = 2, b = -3, and c = -7

So, we can plug in the numbers to get:

$\frac{-(-3) + \sqrt{(-3)^2 - 4(2)(-7)} }{2(2)}$ and $\frac{-(-3) - \sqrt{(-3)^2 - 4(2)(-7)} }{2(2)}$

Simplifying, we get:

$\frac{3 + \sqrt{65} }{4}$ and $\frac{3 - \sqrt{65} }{4}$

You need to use a calculator to find what these would be in decimal form. The answer, rounded to the nearest tenth, is: x = 2.8, x = -1.3

8 0

2 years ago

PLZ help me fast 2 mins left

jek_recluse [69]

Answer:

$\sqrt{-5}=i\sqrt{5}$

$\sqrt{-25}=5i$

Step-by-step explanation:

i is an imaginary unit, this means

$i^2=-1$

Rewrite -5 as $5\cdot (-1)=5\cdot i^2,$

then

$\sqrt{-5}=\sqrt{5i^2}=\sqrt{5}\cdot \sqrt{i^2}=\sqrt{5}\cdot i=i\sqrt{5}$

Rewrite -25 as $-25=25\cdot (-1)=25\cdot i^2,$

then

$\sqrt{-25}=\sqrt{25\cdot i^2}=\sqrt{25}\cdot \sqrt{i^2}=5\cdot i=5i$

6 0

3 years ago

If f(x) = |x| + 9 and g(x) = –6, which describes the range of (f + g)(x)?

Leokris [45]

Just want points byeeee hope u fail jkjkjk

3 0

3 years ago

In a box there are 6 orange balls, 4 green balls and "x" blue balls. If the probability of removing a blue ball is 1/3, what is

worty [1.4K]

Answer: 2/3 I think

Step-by-step explanation:

4 0

2 years ago