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Lostsunrise [7]
3 years ago
8

180 heartbeats in 3 minutes ? heartbeat (s) per minute

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
3 0

Answer:

60

Step-by-step explanation:

180÷3=60

if it is unclear or you need more explanation, ask freely.

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In the adjoining figure, area of trangle ABC is
Zepler [3.9K]

Answer:

PQ=4\ cm

Step-by-step explanation:

see the attached figure with the letter D to better understand the problem

we know that

The segment side AD is the height of triangle ABC

so

Triangles PBQ and ABD are similar by AA Similarity Theorem

The area of triangle ABC is equal to

A=\frac{1}{2}(BC)(AD)

we have

A=48\ cm^2\\BC=12\ cm

substitute

48=\frac{1}{2}(12)(AD)

AD=8\ cm

Remember that

If two triangles are similar  then the ratio of its corresponding sides is proportional

so

\frac{BP}{AB}=\frac{PQ}{AD}

substitute the given values

\frac{BP}{2BP}=\frac{PQ}{8}

\frac{1}{2}=\frac{PQ}{8}

PQ=4\ cm

3 0
3 years ago
PLZ HELP PLZ PLZ PLZ PLZ AND PLZ PLZ PLZ HURRYGraph the points 0,4 1,8 and 2,10
Elanso [62]

Answer:

i made it going by 2's as it's easier and quicker and more efficient. sorry for the messy hand writing.

7 0
3 years ago
!!HELP!! algebra two!! multiply and combine like terms to write as the sum of difference of monomials!! a-i !!!explanation, if p
vazorg [7]

Answer:

a. 10a + 8a²

c. 12z + 3z²

e. -20 + x + x²

g. -64 + 9z⁴

i. y¹⁰⁰¹ + 8y¹³²⁰⁰

Step-by-step explanation:

According to the Six Exponential Rules, whenever you divide terms, you subtract the exponents, and of course whenever you multiply terms, you add the exponents.

a. The variables have an invisible degree term of 1, so when multiplied, you get 8a².

c. ⅛ of 24 and 96 means dividing both numbers by its multiplicative inverse, which is 8: ⅛[24] → 24 ÷ 8; 3; ⅛[96] → 96 ÷ 8; 12. Then of course, you still have to follow the exponential procedure.

e. This is just like the Quadratic Equation, y = <em>Ax² + Bx + </em><em>C</em>. All you have to do is do what I like to call FOIL:

F - Multiply the first terms in each set of parentheses FARTHEST TO THE LEFT

O [Outermost] - Multiply the first term in the first set of parentheses FARTHEST TO THE LEFT by the last term in the second set of parentheses FARTHEST TO THE RIGHT

I [Innermost] - Multiply the last term in the first set of parentheses FARTHEST TO THE RIGHT by the first term in the second set of parentheses FARTHEST TO THE LEFT

L - Multiply the last terms in each set of parentheses FARTHEST TO THE RIGHT

Doing this will give you the above answer.

g. See explanation letter <em>e</em><em>.</em>

i. Now, as I mentioned before, when you multiply terms, you add the exponents. In addition, that decimal in the far right corner, is equivalent to ⅛, and ⅛ of 8 is 1, so we know that 1 is our INVISIBLE coefficient next to the <em>y</em><em>,</em><em> </em>then you just add 1 to 1000 in the exponents because of the invisible degree of 1.

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

**I have a video that talks about the Six Exponential Rules. It is titled "Six Exponential Procedures". Go check out the channel to watch it and gain more assistance.

4 0
3 years ago
Someone Help Me Please ? , It’s Probability
olga nikolaevna [1]
1. correct
2. same as 1
3. 2/5, 2:5, .40, 40%
4. 3/5, 3:5, 0.60, 60%

Hope this helped☺☺
3 0
4 years ago
Jorge started the month with a balance of $400 in his checking account and ended the month with $450 what is the percent of the
KatRina [158]

Answer:

%12.5

Step-by-step explanation:

<em>Step 1:  Make an equation</em>

<em>400x = 450</em>

<u>Step 2:  Divide both sides by 400</u>

400x / 400 = 450 / 400

<em>x = 1.125</em>

<u>Step 3:  Convert into a percentage</u>

1.125 * 100

<em>%112.5</em>

<em>The increase is %12.5</em>

Answer:  %12.5

6 0
3 years ago
Read 2 more answers
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