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3 years ago

(simplify the expression) 2x7b

Mathematics

1 answer:

Lapatulllka [165]3 years ago

5 0

Answer:

14b

Step-by-step explanation:

2×7=14

Just put the "b" after 14

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Usimov [2.4K]

1) x^2 + 8x + 16 = (x+4)^2

Answer: C. 16

2) x^2 + 4x + 4 = (x+2)^2

Answer: B. 4

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3 years ago

Select all of the following that are ordered pairs of the given function.

podryga [215]

Answer:

(-1, 5)

(0, 3)

(2, -1)

Step-by-step explanation:

we have

$f(x)=3-2x$

Remember that

If a ordered pair is a solution of the given function, then the ordered pair must satisfy the given function

Verify each case

case a) (-2, -1)

substitute the value of x and the value of y in the given function and compare the result

$-1=3-2(-2)$

$-1=7$ ---> is not true

therefore

Is not a ordered pair of the given function

case b) (-1, 5)

substitute the value of x and the value of y in the given function and compare the result

$5=3-2(-1)$

$5=5$ ---> is true

therefore

Is a ordered pair of the given function

case c) (0, 3)

substitute the value of x and the value of y in the given function and compare the result

$3=3-2(0)$

$3=3$ ---> is true

therefore

Is a ordered pair of the given function

case d) (1,0)

substitute the value of x and the value of y in the given function and compare the result

$0=3-2(1)$

$0=1$ ---> is not true

therefore

Is not a ordered pair of the given function

case e) (2, -1)

substitute the value of x and the value of y in the given function and compare the result

$-1=3-2(2)$

$-1=-1$ ---> is true

therefore

Is a ordered pair of the given function

6 0

3 years ago

Hey guys! Do you mind helping me with these two problems? Thank you!

disa [49]

Answer:

Step-by-step explanation:

All are whole numbers not real numbers not

6 0

3 years ago

Evaluate ƒ(x ) = x 2 + 1 for ƒ(10). 2√2 101 21

Vladimir [108]

F(10) = (10)^2 + 1
= 100 + 1
= 101

101 is the answer

5 0

3 years ago

Students in a random sample of 57 students measured their handspan. The dot plots display the results for the males and females.

Nat2105 [25]

Answer:

There is a difference in mean hand span between male and female if you notice the difference between their averages. 2cm is quite significant

female mean = 19.6 cm and male mean = 21.6 cm

Step-by-step explanation:

a.) There is a significant difference.

take P( Z < ( 19.6 - 21.6) / 1) = P(Z < -2) = 2% probability of assuming that male and female means are the same. too low to think like that.

b.) Differ by 2cm. MAD= Mean Absolute Deviation , MAD within their own data set seem similar

C.) The variability in hand spans among male and female are very similar, since they both have the same MAD = 1.0

7 0

3 years ago