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3 years ago

Please help thank you so much

Mathematics

2 answers:

kirza4 [7]3 years ago

8 0

Answer: 15

Step-by-step explanation:

Since the angle looks to be around 90 degrees and the x is timsed by 6 the answer would have to be a lower number. And from the options only 15 would work.

Licemer1 [7]3 years ago

5 0

Answer:

$\Huge\boxed{x=15}$

Step-by-step explanation:

Hello There!

The angle labeled 6x is a right angle

If an angle is formed using the diameter of a circle then the opposite angle of that side is a right angle

So 6x = 90

isolate the variable

divide each side by 6

90/6= 15

6x/6=x

we're left with x = 15

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6х + 4y + 2z = 32 3х - 3y - z = 19 3х + 2y + z = 32 x = ? y = ? z = ?

blsea [12.9K]

×=12

y=9

z=2 not sure I'm right

3 0

3 years ago

1. Find f(3) for the function below. f(x) = 4^x

Wewaii [24]

Answer:

Step-by-step explanation:

f(x) = 4^x,

When x = 3,

=> f(3) = 4^3

= 4 * 4 * 4

= 64

7 0

3 years ago

Read 2 more answers

Advertisements for the Sylph Physical Fitness Center claim that completion of their course will result in a loss of weight (meas

MrMuchimi

Answer:

90% confidence interval for the mean weight loss for the population represented by this sample assuming that the differences are coming from a normally distributed population is [1.989 ,13.5105]

Step-by-step explanation:

The data given is

Mean Std Dev

Before 177.25 29.325

After 169.50 22.431

Difference 7.75 8.598

Hence d`= 7.75 and sd= 8.598

The 90% confidence interval for the difference in means for the paired observation is given by

d` ± t∝/2(n-1) *sd/√n

Here t∝/2(n-1)=1.895 where n-1= 8-1= 7 d.f

and ∝/2= 0.1/2=0.05

Putting the values

d` ± t∝/2(n-1) *sd/√n

7.75 ±1.895 * 8.598 /√8

7.75 ± 5.7605

1.989 ,13.5105

90% confidence interval for the mean weight loss for the population represented by this sample assuming that the differences are coming from a normally distributed population is [1.989 ,13.5105]

3 0

3 years ago

Need help with this math don’t understand

slava [35]

Answer:

Step-by-step explanation:

The formula for flipping smth over the x axis is(x,y)→(x,−y)

just flip the symbol on the second #

your points are:

(-4,-2)→(-4,2)

(0,-4)→(0,4)

(-4,-5)→(-4,5)