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3 years ago

Which postulate or theorem proves that Δ QRS and Δ TRS are congruent?

Mathematics

2 answers:

Oliga [24]3 years ago

8 0

HL congruence theorem cuz it’s a right triangle with congruent hypotenuse

Akimi4 [234]3 years ago

6 0

Answer:

SAS

Step-by-step explanation:

Triangles QRS and TRS share the same side which is congruent by the reflexive property and perpendicular angles. They also have another congruent leg as marked on the diagram. These forms side-angle-side or SAS.

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Which decimal is shown on this number line?

-BARSIC- [3]

The answer is
C. 0.4

1/2 is 0.5
so one down from it would be 0.4

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3 years ago

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The surface area of the solid is about ____ inches squared

Dafna11 [192]

Answer:

Surface area of the whole figure $= 320.28inch^2$

Step-by-step explanation:

The surface area of the figure :

Surface area of the cylinder(excluding top)+Surface area of the cone(excluding bottom)

Radius of the cylinder=3 inch and Height of cylinder=13 inch

Surface area of the cylinder with one circular face

$=2\pi rh+\pi r^2$

As, $\pi =\frac{22}{7}= 3.14$

$=(2*3.14*3*13)+(3.14*3*3)\\\\=244.92+28.26\\\\=273.18inch^2$

Surface area of the cone excluding base:

$=\pi *r*l$

l= slant height=5 inch r= radius= 3 inch

Surface area of the cone = $3.14*3*5$

$=47.1inch^2$

Total surface area of the whole figure $=273.18+47.1$

$= 320.28inch^2$

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3 years ago

Which function has a domain where x does not =3 and a range where y does not =2? A. f(x)=(x-5)/(x+3) B. f(x)=2(x+5)/(x+3) C. 2(x

Natali5045456 [20]

Answer: D. (x+5)/(x-3)

Step-by-step explanation:

Domain = Set of all input values of a function.

range = set of all output values of a function.

Given: Domain: $x\neq3$ ; range = $y\neq2$

We do not include a value for domain if it makes the expression indeterminant .

Since all the functions in options are fractions, here the denominator does not equal to 0.

But in option C and D, the denominator can be zero if x=3.

So , domain for then it $x\in {R-3}$

Also, for option C if $2=2\dfrac{(x+5)}{(x-3)}$

$\Rightarrow\ x-3=x+5\\\\\Rightarrow\ -3=5$ .which is not true.

Wher as in option D, $2=\dfrac{x+5}{x-3}\Rightarrow\ 2x-6=x+5\Rightarrow\ x=11$

Hence, Domain: $x\neq3$ ; range = $y\neq2$ is for option D.

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3 years ago

Question 26 OT 40

masha68 [24]

I think the answer is D

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3 years ago

Phillip is rolling two number cubes. How many different ways can he roll the number cubes and get a sum of 6?

attashe74 [19]

Your answer you be A. 3

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4 years ago

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