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Veseljchak [2.6K]
3 years ago
9

Help me please.. i will mark brainliest if correct

Mathematics
1 answer:
UkoKoshka [18]3 years ago
3 0

Answer:x=7

Step-by-step explanation:

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Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?
never [62]

Answer:

∠ Y = 45°, ∠ X = 135°

Step-by-step explanation:

Since the 2 angles are supplementary, then

X + Y = 180 ← substitute X = 3Y

3Y + Y = 180, that is

4Y = 180 ( divide both sides by 4 )

Y = 45

and

X + Y = 180, so

X + 45 = 180 ( subtract 45 from both sides )

X = 135

Thus

∠ X = 135° and ∠ Y = 45°

5 0
3 years ago
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A geometric solid has only length and height
CaHeK987 [17]
No it has length breadth/width and height

5 0
3 years ago
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Which math expression means "the difference of 40 and 12"?
blsea [12.9K]

Answer:C

Step-by-step explanation:This is because c has subtract sign and you are trying to find the difference and difference you need to subtract.And you need to find the difference of 40 and 12 so u write 40- 12 which is choice c.

Hope it helps and it does please give Brainliest .Thanks ;)

6 0
3 years ago
Witch equation has the correct sign on the product.
maria [59]

Answer: choice A or (-25)(-25)=625

Step-by-step explanation:

its choice A because a negative times a negative equals a positive :)

4 0
2 years ago
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Based on the sample of n = 25 healthy-weight students, can you conclude that healthy-weight students eat significantly fewer fat
Elis [28]

Answer:

z = -1.645

Step-by-step explanation:

b) n =25, M = 4.01 , \mu = 4.22 , \sigma = 0.60 , \alpha= 0.05

The hypothesis are given by,

H0 : \mu\geq 4.22 v/s H1 : \mu < 4.22

The test statistic is given by,

Check attachment for the formula that should br here.

z = \frac{4.01- 4.22 }{0.60 /\sqrt{25}}

= -1.75

The critical value of z = -1.645

The calculated value z > The critical value of z

Hence we reject null hypothesis.

The healthy-weight students eat significantly fewer fatty, sugary snacks than the overall population.

8 0
3 years ago
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