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Alja [10]
3 years ago
5

What is the value of x in the following equation?

Mathematics
2 answers:
mihalych1998 [28]3 years ago
6 0

Answer:

-2

Step-by-step explanation:

-3x - 2x = 8 + 2

-5x = 10

x = -2

docker41 [41]3 years ago
4 0

Answer:

x=-2

Step-by-step explanation:

To cancel out "- 2", we add 2 into both sides.

-3x(-2+2)=2x+(8+2)

-3x=2x+10

Now, we need to get rid of 2x so we can have one x.

Let's subtract 2x from both sides.

(-3x-2x)=(2x-2x)+10

-5x=10

To get x by itself, we will divide both sides by -5.

\frac{-5x}{-5} =\frac{10}{-5}

x=-2

<em>The value of x in the given equation is -2. I do not see a -2 in the answer choices. </em>

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(URGENT)Find the equation of the normal line to the curve below at the point (1, -2) in point slope form.
Rus_ich [418]

Answer:

Xmin:

-10

Xmax:

10

Ymin:

-10

Ymax

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Step-by-step explanation:

4 0
3 years ago
The graph of a sine function g(x) is presented below.
NISA [10]

Solution

To determine the vertical translation

We need to determine the amplitude

The amplitude is

\frac{10-4}{2}=\frac{6}{2}=3

Since the minimum is 4

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Part B

Given f(x) = 4 sin(θ - 45) + 8

The vertical translation is 8

3 0
1 year ago
I need help with this please!!!
Andru [333]

Answer:

U = \frac{TE}{3}

Step-by-step explanation:

Given

T = \frac{3U}{E}

Multiply both sides by E to clear the fraction

TE = 3U ( divide both sides by 3 )

\frac{TE}{3} = U

5 0
3 years ago
A coin is tossed 5 times. Find the probability that all are heads. Find the probability that at most 2 are heads.
fenix001 [56]

Answer:

1/32

15/32

Step-by-step explanation:

For a fair sided coin,

Probability of heads, P(H) = 1/2

Probability of tails P(T)  = 1/2

For a coin tossed 5 times,

P( All heads)

= P(HHHHH),

= P (H) x P(H) x P(H) x P(H) x P(H)

= (1/2) x (1/2) x (1/2) x (1/2) x (1/2)

= 1/32 (Ans)

For part B, it is easier to just list the possible outcomes for

"at most 2 heads" aka "could be 1 head" or "could be 2 heads"

"One Head" Outcomes:

P(HTTTT), P(THTTT) P(TTHTT), P(TTTHT), P(TTTTH)

"2 Heads" Outcomes:

P(HHTTT), P(HTHTT), P(HTTHT), P(HTTTH), P(THHTT), P(THTHT), P(THTTH), P(TTHHT), P(TTHTH), P(TTTHH)

If we count all the possible outcomes, we get 15 possible outcomes representing "at most 2 heads)

we know that each outcome has a probability of 1/32

hence 15 outcomes for "at most 2 heads" have a probability of

(1/32) x 15  = 15/32

8 0
3 years ago
Read 2 more answers
A sample of size 20 from a normal distribution has sample mean 3.5 and sample variance 14.75. Find 90% confidence intervals for
aleksley [76]

Answer:

Variance =9.2983, 27.6927

Standard deviation = 3.0493, 5.2624

Step-by-step explanation:

n = 20

S = 14.75

X² = chisquare

N-1 = degree of freedom

Alpha = 0.1

Alpha/2 = 0.1/2 = 0.05

1-0.1/2 = 0.95

Using statistics table

X² 19,0.05 = 30.14

X² 19, 0.95 = 10.12

A. 19(14.75)/30.14 , 19(14 75)/10.12

= 9.2983, 27.6927 for the variance of the population

B. Standard deviation = square root of variance

= √9.2983, √27.6927

= 3.0493, 5.2624

Please use attachment for better understanding

5 0
3 years ago
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