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o-na [289]
3 years ago
11

Fine the length of the hypotenuse of a Right triangle with legs pf 20cm and21cm

Mathematics
1 answer:
Arisa [49]3 years ago
3 0

Hypotenuse² = perpendicular² + base²

H² = 20²+21²

H²= 400+441 = 841

H = √841

H = 29 cm

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The height of a soccer ball thrown of a hill can be modeled by the equation h = -16t^2 -8t +120.
inessss [21]

Answer:

120 feet

Step-by-step explanation:

You have to find the y-intercept to calculate the initial hight, this can be done by substituting o in for t

h(0)= -16(0)^2-8(0)+120

=120ft

4 0
3 years ago
If you take a number, times by 3 then add 5. You get the same as if you took the number, times by 7 then subtract 8. What is the
lana [24]
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8 0
3 years ago
The probability that a new advertising campaign will increase sales is assessed as being 0.80. The probability that the cost of
tatuchka [14]

Answer:

The probability that the cost is kept within budget or the campaign will increase sales is 0.88

Step-by-step explanation:

The probability that the cost is kept within budget (event A) <u>or</u> the campaign will increase sales (event B) is the <u>union</u> of the probability of those two events. By basic properties of probability, this is:

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and for independent events:

P(A ∩ B) = P(A) * P(B)

So:

P(A ∪ B) = 0.80 + 0.40 - (0.80*0.40) = 1.20 - 0.32 = 0.88

5 0
3 years ago
Simplify. 14+4(12−34)2 Enter your answer in the box.
Komok [63]
14 + 8(12-34)

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- 162 is your answer

hope this helps
5 0
3 years ago
Read 2 more answers
Find the sum of the counting numbers from 1 to 25 inclusive. In other words, if S = 1 + 2 + 3 + ... + 24 + 25, find the value of
Anastaziya [24]

Answer:

325

Step-by-step explanation:

You must have heard about Arithmetic Progressions (AP)

Arithmetic progressions are a series of numbers such that every successive number is the sum of a constant number and the previous number.

Our very own counting numbers form AP

For example :-

2 = 1 + <u>1</u>

3 = 2 + <u>1</u>

4 = 3 + <u>1</u>

The number in bold (1) is that constant number which is added to a number to form its successive number.

To find the sum of series forming AP, we use the formula :-

sum =  \frac{n}{2} \{ a  + a  _{n}  \}

here,

  • n is the number of terms
  • a is the first number of the series
  • an is the last number of the series

So we'll use all this information to find the sum of continuous numbers from 1 to 25 where 1 is the first term(a) and 25 is the last(an).

and n is 25

S  =   \frac{25}{2}\{ 1  +25\}

=  \frac{25 \times 26}{2}

= 25  \times 13

= 325

So, the value of S comes out to be 325.

8 0
3 years ago
Read 2 more answers
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