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3 years ago

9

Anna's mother is concerned about her pulse rate and asks her to rest. After lying down it decreased 20%. What is her heart rate

now? (Heart rate is 91)

1 answer:

maks197457 [2]3 years ago

4 0

Answer:

don't know gfy

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Please I need help it's really hard

Vitek1552 [10]

I'd say angle A = angle B
arc tangent (angle B) = 150 / 555
<span><span><span>arc tangent (angle B) = 0.2702702703 </span>
angle B = 15.124 degrees

By the way 555 feet is the height of the Washington Monument.
</span> </span>

3 0

3 years ago

How do you solve this ?

Alenkasestr [34]

See photo for solution

4 0

3 years ago

If (a-bi)^2 = 13 - 12i, what is the product of a and b?

VARVARA [1.3K]

Answer:

$\large \boxed{\sf \ \ \ a\cdot b= 6 \ \ \ }$

Step-by-step explanation:

Hello,

$(a-bi)^2 = 13 - 12i\\\\ a^2+(bi)^2-2abi = 13-12i\\\\a^2-b^2-2abi=13-12i$

Imaginary term must be the same so

-2ab=-12

2ab = 12

ab = 12/2 = 6

So the product of a and b is 6

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0

3 years ago

elena-s [515]

Answer:

the answer is point f. mostly the answer of such type of questions are the points which do not lie ON the circle

3 0

2 years ago

Suppose that on January 1, 2018, you buy a bond for $2,000 that will pay interest of 3.6% per year compounded continuously for 2

Lady_Fox [76]

Answer: $4108.87

Step-by-step explanation:

Given : Present value : $P= \$2,000$

The number of time period : $t=20\text{ years}$

The rate of interest : $r=3.6\%\ =0.036$

Let P be the present value of bond .

The formula to calculate the future value is given by :-

$FV=Pe^{rt}$

$\\\\\Rightarrow\ FV=2000e^{0.036\times20}}\\\\\Rightarrow\ FV=4108.86642129\approx4108.87$

Hence, the future value of the bond on January 1, 2038 would be $4108.87 .

8 0

3 years ago