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Hunter-Best [27]
3 years ago
8

Incorrect 00:00 Evaluate the expression for x = 1.7. Enter your answer in the box. х2 + 3x​

Mathematics
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

7.99

Step-by-step explanation:

x^2 +3x

Let x=1.7

(1.7)^2 +3(1.7)

2.89+5.1

7.99

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The data set represents the number of rings each person in a room is wearing. 0, 2, 4, 0, 2, 3, 2, 8, 6 What is the interquartil
taurus [48]
D1,..,d9 = 0,0,2,2,2,3,4,6,8  //there are 9 values, in ascending order
Q2 (median) = d5 = 2  //value in the middle
Q1 = (d2+d3) / 2 = (0+2)/2 = 1
(Q1 is middle value of d1,d2,d3,d4, but there is no middle element among four elements, that is why arithmetic mean is taken)
Q3 = (d7+d8) / 2 = (4+6)/2 = 5
interquantlie range = IQR = Q3 - Q1 = 5 -1 = 4
answer: 4

4 0
3 years ago
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PLZ ANSWER ASAP WILL GIVE 50PTS if u explain and mark brainliest!!!!!!!
Vinil7 [7]

Answer:

Step-by-step explanation:

1.

\frac{5q+5p}{2} = 3+4p\\5q+5p = 6+8p \\5q = 6 +3p \\q = \frac{6+3p}{5}    ( a=3,b=6,c=5)

2. q-p = 3p +5

q = 4p+5

4p = q-5

p = (q-5)/4

3. y = 2a -bx^{2}

bx^{2} = 2a - y \\\\x^{2} = \frac{2a - y}{b} \\x = \sqrt{\frac{2a-y}{b}}

8 0
3 years ago
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X f(x) = −x2 + x + 6
masha68 [24]

Answer:

a=0 b=6 c=4 on edge exercise

Step-by-step explanation:

5 0
3 years ago
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The sum of two and the quotient of a number I and five.
Alona [7]

Answer:

2+n/5

Step-by-step explanation:

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4 0
3 years ago
Can atriangle be formed with side lengths of 5cm. 10cm and 15cm
andreyandreev [35.5K]
Theorem of cosine:
a²=b²+c²-2bc(cos α)  ⇒cos α=-(a²-b²-c²) / 2bc

In this case:
a=15 cm
b=10 cm
c=5 cm

cos α=-(15²-10²-5²) / 2*10*5
cos α=-100 / 100
cos α=-1

A=arc cos -1=180º  This is impossible, because:

A+B+C=180º; then  B=C=0º  This is impossible for make a triangle  (B>0 and C>0 if we want to make a triangle).  

Therefore: it is not possible can make a triangle with side lengths of 5 cm, 10 cm and 15 cm.

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3 years ago
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