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Paha777 [63]
3 years ago
9

100 + 8² - (2 + 3) • 10 ÷ 2 simplify that nd ill give brainliest

Mathematics
2 answers:
ankoles [38]3 years ago
8 0

Answer:

139

Step-by-step explanation:

Katarina [22]3 years ago
3 0

Answer:

139

Step-by-step explanation:

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Select the appropriate values of x that are solutions to f (x)=0, where f (x) = -7x^2 +4x+9
Ghella [55]
-7x^2 +4x+9=0\\
\Delta=4^2-4\cdot(-7)\cdot9=16+252=268\\
\sqrt{\Delta}=\sqrt{268}=2\sqrt{67}\\
x_1=\frac{-4-2\sqrt{67}}{2\cdot(-7)}=\frac{-4-2\sqrt{67}}{-14}=\frac{2+\sqrt{67}}{7}\approx1.46\\
x_2=\frac{-4+2\sqrt{67}}{2\cdot(-7)}=\frac{-4+2\sqrt{67}}{-14}=\frac{2-\sqrt{67}}{7}\approx-0.88\\
7 0
3 years ago
Suppose there is a 21.9% probability that a randomly selected person aged 20 years or older is a jogger. In addition, there is a
Stells [14]

Answer:

The value P(F\ n \  J) = 0.05

The answer is No

Step-by-step explanation:

From the question we are told that

The probability a person is a jogger is P(J) =  21.9 \% =  0.219

The probability that a person is female given that she jogs is P(F|J)  =  21.9 \%  = 0.219

Generally the probability that a randomly selected person aged 20 years or older is female and jogs? Would it be unusual to randomly select a person aged 20 years or older who is female and jogs is mathematically represented as

P(F\ n \  J) = P(J)* P(F|J)

=>    P(F\ n \  J) = 0.219* 0.219

=>    P(F\ n \  J) = 0.05

Given that the probability is  equal to 0.05 then it is not unusual

8 0
3 years ago
What is the product of any integer and –1?
IrinaVladis [17]

Answer: the product is the opposite of the integer

Step-by-step explanation:

8 0
3 years ago
4. Sam has 6 rose bushes. He counted the flowers on each of them. There are 8, 2, 5,
Vanyuwa [196]

Answer:

No

Step-by-step explanation:

SD=8+2+5+4+11+9÷6

13=10+9+20÷6

13=19+20÷6

13=39÷6

13=6.5-False=No

4 0
3 years ago
PLS HELP!! <br><br> For the function f(x)=x+9. Find (f x f^-1)(5)
Karo-lina-s [1.5K]

Answer:

I hope this helps you

Step-by-step explanation:

y=x+9

x=y-9 f^-1 (x)= x-9

x=5 f^-1 (5)=5-9 = -4

f (f^-1))=f (-4)=?

x= -4

f (-4)=-4+9

f (-4)= 5

6 0
3 years ago
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