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Veseljchak [2.6K]
3 years ago
13

Solve for X in the diagram below PLS HELP BRAINLIST AND A THANK YOU WILL BE REWARDED :)

Mathematics
2 answers:
slega [8]3 years ago
7 0

The 3 angles need to equal 180

The middle angle is given as 100.

180 -100 = 80

There is an x on each side so you have 2x

2x = 80

X = 80/2

X = 40 degrees

Bess [88]3 years ago
4 0

Answer:

Each x should equal 40

Step-by-step explanation:

The total is equal to 180°. You already know that you have 100°. Then if you subtract 100° from 180° you will get 80°. Since you have two “x” you need to divide 80° by two and you’ll get 40°

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The answer is 32. you would multiply 8 times 4 which is 32 feet.
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What number is needed to finish the pattern 66 73 13 21 52 _ 10 20
Nuetrik [128]
I think that the answer is 61 I got this off of google so I'm not 100 percent sure please don't take my word as anything but second advice.
4 0
3 years ago
Read 2 more answers
Student Cookies
34kurt

Step-by-step explanation:

Kayden:Kayah:Kayla:Michelle

2:3:4:3

2k+3k+4k+3k=36

12k=36

k=36:12

k= 3

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6 0
3 years ago
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Persons having Raynaud's syndrome are apt to suffer a sudden impairment of blood circulation in fingers and toes. In an experime
Citrus2011 [14]

Answer:

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

Step-by-step explanation:

We have to perform a hypothesis test on the difference between means.

The null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a: \mu_1-\mu_2

μ1: mean heat output for subjects with the syndrome.

μ2: mean heat output for non-sufferers.

We will use a significance level of 0.05.

The difference between sample means is:

M_d=\bar x_1-\bar x_2=0.63-2.09=-1.46

The standard error is

s_{M_d}=\sqrt{\sigma_1^2/n_1+\sigma_2^2/n_2}=\sqrt{0.3^2/9+0.5^2/9}=\sqrt{ 0.038 } \\\\ s_{M_d}=0.194

The t-statistic is

t=\dfrac{M_d}{s_{M_d}}=\dfrac{-1.46}{0.194}=-7.52

The degrees of freedom are

df=n_1+n_2-2=9+9-2=16

The critical value for a left tailed test at a significance level of 0.05 and 16 degrees of freedom is t=-1.746.

The t-statistic is below the critical value, so it lies in the rejection region.

The null hypothesis is rejected.

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

5 0
2 years ago
Mary spent half of her allowance going to the movies . She washed the family car and earned seven dollars . What is her weekly a
Debora [2.8K]
If Mary spent half of her allowance the equation will begin with 1/2x or 0.5x where x is her allowance and 0.5 is half of her allowance spent. Mary also earned 7 dollars by washing the car so this will be added to her allowance spent.
The problem says that after Mary has spent half of her allowance at the movies she was left with 18 dollars so that means that the equation must be equal to 18.

The equation you want to set up is

0.5x+7=18
Where, 18-7=11
0.5x=11
11/.5 = x
x = $22

Thus, Mary has a weekly allowance of 22 dollars.
4 0
2 years ago
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