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Anit [1.1K]
3 years ago
6

What is the value of x?

Mathematics
1 answer:
Vesna [10]3 years ago
4 0
To find the value of x we use sine rule given by 
a/sin A=b/sin B=c/sinC
the value of x will be given by:
∠F=180-(127)=53°
13/sin 53=x/sin 87
solving for x we get
x=[13sin 87]/sin 53
x=16.2555~16.3 cm
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How would 2X + Y = 13 be written in slope-intercept form?
yan [13]

Answer:

y=-2x+13

Step-by-step explanation:

For reference, slope-intercept form is:

y=mx+b

(m=slope)

(b=y-intercept)

For the equation 2x+y=13 to be written in slope-intercept form, all we must do is subtract 2x from both sides of the equation:

2x+y=13

y=-2x+13

4 0
3 years ago
Suppose that you are interested in estimating the average impact a job training program has on wages. After controlling for obse
Ede4ka [16]

Answer:

False

Step-by-step explanation:

From the question we are told that

The coefficient for the training is r   =  0.55

The standard error is SE  =  1.06

The confidence level is 95%

Generally the level of significant is mathematically represented as

\alpha  =( 100 -95)\%

=> \alpha  = 0.05

Generally the critical value of \alpha  = 0.05 obtained from the normal distribution table is Z_{0.05} =  1.645

Generally the test statistics is mathematically represented as

t  =  \frac{r }{SE}

=> t  =  \frac{0.55}{1.06}

=> t  =  0.5189

Generally given that the t <  Z_{\alpha }

Hence  there is no sufficient evidence to conclude that the program has a positive and statistically significant impact on wages at a 95% confidence level.

So the answer is False

3 0
4 years ago
HELP ME OUT ASAP PLS 20POINTS IF U DO! On Friday, a bowling alley made $842.72 from lane rentals and $412.38 from the concession
ElenaW [278]

Answer:

  $2611.05

Step-by-step explanation:

  earnings = lane rentals + concessions

<u>Friday</u>:

  earnings = $842.72 +412.38 = $1255.10

<u>Saturday</u>:

We assume "down by 1/8" means the value was 1 -1/8 = 7/8 that of the previous day. Likewise, "increased by 1/2" is assumed to mean the value was 1 + 1/2 = 3/2 that of the previous day.

  earnings = 7/8×$842.72 + 3/2×412.38 = $1355.95

__

Then the total earnings for both days were ...

  $1255.10 +$1355.95 = $2611.05

7 0
3 years ago
Read 2 more answers
Which equation has NO solution?
o-na [289]

Answer:

B

Step-by-step explanation:

because in the periodic table nitrogen is 7, and oxygen is 16

6 0
3 years ago
F(x)=x^3-9x<br> What is the average rate of change of f over the interval (1,6]?
Rzqust [24]

Answer:

34

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 1, 6 ]

f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162

f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus

average rate of change = \frac{162-(-8)}{6-1} = \frac{170}{5} = 34

3 0
3 years ago
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