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3 years ago

How to do radicals in a 45-45-90 triangle?

Mathematics

2 answers:

nikklg [1K]3 years ago

5 0

1:1: square root 2

that is it.

leva [86]3 years ago

5 0

If the question is to find the value of u and v, use sin-cos-tan ratio to solve it

Find the value of v
v/12 = tan 45°
v/12 = 1
v = 12
The value of v is 12

Find the value of u
sin 45° = v/u
u = v/sin 45°
u = 12/(√2/2)
u = 24/√2
rationalize
u = 24/√2 × √2/√2
u = 12√2
The value of u is 12√2

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Property for 5x +15=-4

erastova [34]

5x +15=-4 5x=-4-15 5x=-20 X=-20/5 X=-4

4 0

4 years ago

A hemoglobin test measures 29 grams of hgb per 200 milimiters of blood. If the patient has 11 quarts of blood in her body, how m

bezimeni [28]

Answer:

$11 quarts *\frac{946.353 ml}{1 quarter}= 10409.883 ml$

And for this case we can create the following proportion rule:

$\frac{29 gr}{200 ml} =\frac{x}{10409.883 ml}$

And solving for x we got:

$x= 10409.883 ml *\frac{29 gr}{200ml}= 1509.433 gr$

Step-by-step explanation:

For this problem we know that A hemoglobin test measures 29 grams of hgb per 200 milimiters of blood. and we want to know how many grams of Hgb are present in 11 quarts

First we need to convert the quarts to ml and we have:

$11 quarts *\frac{946.353 ml}{1 quarter}= 10409.883 ml$

And for this case we can create the following proportion rule:

$\frac{29 gr}{200 ml} =\frac{x}{10409.883 ml}$

And solving for x we got:

$x= 10409.883 ml *\frac{29 gr}{200ml}= 1509.433 gr$

3 0

3 years ago

A dime has a diameter of about 18 millimeters. About how many millimeters long would a row of 34 dimes be?

Step2247 [10]

This is simple. One dime = 18 mm.

So simply multiply 34 by 18 to get 612 mm.

Hope this helps!

7 0

3 years ago

Read 2 more answers

Help! Given that tanθ=-1, what is the value of secθ, for 3π/2<θ<2π?

user100 [1]

Answer: Choice B) $\sqrt{2}$

Work Shown:

$\sec^2(\theta) = \tan^2(\theta) + 1\\\\\sec^2(\theta) = (\tan(\theta))^2 + 1\\\\\sec^2(\theta) = (-1)^2 + 1\\\\\sec^2(\theta) = 2\\\\\sec(\theta) = \sqrt{2}\\\\$

Note: secant is positive in quadrant Q4, when theta is between 3pi/2 radians and 2pi radians (270 degrees and 360 degrees). So that's why we don't consider the minus form of the plus minus.

5 0

3 years ago

PLEASE HELP ME PLEASE IM BEGGING

Elena-2011 [213]

<span>-1901075.28726
</span>I do not know if this is correct or not but I hope this helps!

8 0

4 years ago