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3 years ago

Use the graph below to fill in the blank with the correct number: f(−2) = _______

Mathematics

2 answers:

Vadim26 [7]3 years ago

8 0

Answer:

$f(-2)=2$

Step-by-step explanation:

we know that

f(x) is the value of the function for the value of x

In this problem

$f(-2)$ is the value of the function for the value of $x=-2$

Observing the graph

For $x=-2$

the value of the function is equal to

$f(-2)=2$

see the attached figure to better understand the problem

sp2606 [1]3 years ago

5 0

The answer would be 2
the hint to find out how would be <span>f(-2) is the y value of the point when x = -2</span>

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Parallelogram ABCD is reflected over the x-axis. What rule shows the input and output of the reflection, and what is the new coo

vovangra [49]

(x,y) ->(x,-y); A' is at (-5,-1)

3 0

3 years ago

A test to measure psychotic tendencies was given to a group of 1,000 air force cadets who wished to work in nuclear silos. Any c

Anastaziya [24]

Answer:

Option d) 840

Step-by-step explanation:

Given that a test to measure psychotic tendencies was given to a group of 1,000 air force cadets who wished to work in nuclear silos.

If Score ≥64 would be eliminated.

X is N(52, 12)

Probability for any random person to get eliminated

= $P(X\geq 64)\\= 1-R(64)\\=1-0.8413\\= 0.1587$

Now coming to sample size of 1000 people, we find each person is independent of the other and there are two outcomes either >64 or < 64

So Y no of persons who get more than 64 is binomial with n =1000 and p = 0.1587

Mean of Y = E(Y)

= no of people who were not accepted $=1000(0.1587) = 158.7$

No of people accepted $= 1000-158.7 = 841.3\\=841$

Approximately we get 840 so option d

6 0

4 years ago

Find the scale factor from Triangle ABC to Triangle DEF.

Kamila [148]

Answer:

The ratio of any two corresponding lengths in two similar geometric figures.

Step-by-step explanation:

You can see immediately that the length of each of the sides in triangle DEF is equal to the length of the corresponding side in ABC multiplied by “a”.

If you divide the length of DE by the length of AB:

a^2/a =a.

You get a scale factor of “a”

7 0

3 years ago

The sum of two positive integers is 13 the difference between these numbers is 7 what is their product ? Explain :

olasank [31]

A+b=13
a-b=7
add the two equations using system of equations
2a=20
a=10
10+b=13
b=3

5 0

4 years ago

Read 2 more answers

For the equation, 2x + 6 = 3x - 10, what is the solution

geniusboy [140]

Answer: x=16

Step-by-step explanation:

$2x+6=3x-10$

Subtract 6 on both sides

$2x+6-6=3x-10-6$

$2x=3x-16$

Subtract 3x on both sides

$2x-3x=3x-16-3x$

$-x=-16$

Divide -1 on both sides

$\frac{-x}{-1}=\frac{-16}{-1}$

$x=16$

7 0

3 years ago