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2 years ago

7

This is kind of off topic for math but I still need to know the answer, so I’ve finished all my math work and I know my work is

also correct but for some reason my grades drop down. I don’t understand why...

1 answer:

Mariulka [41]2 years ago

6 0

Answer:

email or call or talk to your teacher and ask why

Step-by-step explanation:

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In XYZ, mX=90 and mY=30.In TUV,mU= 30 and mV=60. Which is true about the two triangles? XYZ=TUV, XYZ= VUT,No congruency statemen

Flauer [41]

Answer:

No congruency statement can be made because the side length are unknown.

Step-by-step explanation:

The sum of the measures of all interior angles in a triangle is always 180°.

In triangle XYZ,

$m\angle X=90^{\circ}\\ \\m\angle Y=30^{\circ},$

then

$m\angle X+m\angle Y+m\angle Z=180^{\circ}\Rightarrow m\angle Z=180^{\circ}-90^{\circ}-30^{\circ}=60^{\circ}$

In triangle TUV,

$m\angle U=30^{\circ}\\\\m\angle V=60^{\circ},$

then

$m\angle T+m\angle U+m\angle V=180^{\circ}\Rightarrow m\angle T=180^{\circ}-30^{\circ}-60^{\circ}=90^{\circ}$

We have two triangles with congruent angles but we have no information about side lengths. Therefore, can not be made because the side length are unknown. Correct option is last option.

6 0

3 years ago

Read 2 more answers

Which of the following inequalities matches the graph? (1 point)

pickupchik [31]

Answer:

there were no inequalities to choose from but I believe the answer is y ≤ 4x

Step-by-step explanation:

4 0

3 years ago

A line with a slope of -2 passes through the points (0,d) and (-8,9). What is the value of d?

Verizon [17]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have m = -2 and the points (0, d) and (-8, 9). Substitute:

$\dfrac{9-d}{-8-0}=-2\\\\\dfrac{9-d}{-8}=-2\qquad\text{multiply both sides by (-8)}\\\\9-d=16\qquad\text{subtract 9 from both sides}\\\\-d=7\qquad\text{change the signs}\\\\\boxed{d=-7}$

4 0

3 years ago

How do i solve this?

Damm [24]

From the ratio given you can determine that m is proportional to 1/(r^3). You can write this as m = k * 1/(r^3), k being your constant of proportionality. Then use this to calculate the next parts of the question.

6 0

3 years ago

jek_recluse [69]

Here is some answers

1. 2x+3y=1,470

-2x -2x

---------------------

3y=-2x+1,470

---- --------

3 3

------------------

y=-2x+490

2. rise

-----

run

y=-2

---

1

Find 490 and either go up 2 down 1 or down 2 up 1 either way you will get a straight line.

3. f(x)=2x+490

Don-t know how to explain this :(

I'm confused after this question

Hope this helped a little

5 0

2 years ago