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4 years ago

Help please I don’t get it (????)

Mathematics

2 answers:

lara31 [8.8K]4 years ago

7 0

Answer:

is a sas theorem.

Step-by-step explanation:

Eddi Din [679]4 years ago

6 0

Step-by-step explanation:

i am guessing you dont understand what do they mean by SSS, SAS, and AA. These are three theorems that are used to compare triangles to each other. your reference book might already have the explanation.

A. SAS stands for side angle side.

this theorem is used to prove that two triangles are congruent, but we're looking for the theorem that proves that these triangles are similar. this can't be our answer.

D. SSS

the three sides of one triangle are compared with the three sides of the other triangle to prove that they're 'congruent', can not be our answer either.

B. AA

we look at the angles of both the triangles to see if the triangles are similar or not. in this case, only one triangle's angle is given. you will have to find the angle of the other one, which will obviously be the same. this is our answer. you can find the angle to check if you're correct or not.

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A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certain city in the U.S. are diff

kvasek [131]

Answer:

The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the proportion of the general population of young adults in the U.S.

Step-by-step explanation:

The hypothesis for the test can be defined as:

H₀: The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the actual proportion, i.e. P = p.

Hₐ: The proportion of young adults (18-25 years of age) in a certain city in the U.S. are different from the actual proportion, i.e. P ≠ p.

The test statistic is defined as:

$z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}$

Assume that the significance level of the test is, α = 0.05.

The decision rule is:

If the p-value of the test is less than the significance level then the null hypothesis will be rejected. And vice-versa.

It is provided that the p-value of the test is, p-value = 0.076.

The p-value = 0.076 > α = 0.05.

Thus, the null hypothesis will not be rejected at 5% level of significance.

Conclusion:

The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the proportion of the general population of young adults in the U.S.

4 0

4 years ago

If you multiply the slopes of two perpendicular lines, what is the result?

rodikova [14]

Find the gradient/slope of Line A:

(3-2)÷(-1-4)

=-0.2

Therefore, the gradient/slope of line B is 5

Using the equation y-y1=m(x-x1) we can find the equation of line B

y-7=5(x-3)

y= 5x-8

Sub in a random value for y (eg. y=2)

2=5x-8

5x=10

X=2

so (2,2)

6 0

3 years ago

Plz help! read the instructions and write a proper answer and if you don't i will report you! And the first one to answer right

ahrayia [7]

Answer:

1 = 0.61, 2 = 1.13

Step-by-step explanation:

The first is 25 + 25 + 10 + 1. This is 61 cents which is 0.61 of 1 dollar. The second is 100 + 10 + 1 + 1 + 1. This is equal to 113, 0r 1.13

BRAINLIEST PLEASE

3 0

2 years ago

someone help me out. i could use it please. O is inscribed in ABC , which has a perimeter of 76 cal. What is the length of CE?

Dimas [21]

Answer:

C.E=18 cm

Step-by-step explanation:

we know that

If the circle O is inscribed in triangle ABC

then

A.F=A.D=6 cm

B.D=B.E=14 cm

C.F=C.E=?

The perimeter of triangle is equal to

P=2(6)+2(14)+2(C.E)

P=76 cm

76=2(6)+2(14)+2(C.E) -----> solve for C.E

76=12+28+2C.E

2C.E=76-40

C.E=36/2

C.E=18 cm

7 0

4 years ago

Factoring as a product of two binomials x2+10x+24

MrMuchimi

That can be factored to:

(x+6)(x+4)

5 0

3 years ago

Read 2 more answers