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2 years ago

Which of the following statements are correct?

Mathematics

2 answers:

sattari [20]2 years ago

5 0

I will help.
Triangle DEF is congruent to triangle GHI.
You can use the process of elimination to get that. All three are not because when u look at their angles and their side. Triangle ABC is not like the others. And abc is not congruent to def because of the angles and the sides.

aniked [119]2 years ago

4 0

Answer:

If you don't understand ask your teacher.

Step-by-step explanation:

Then the purpose of a teacher will be completed!!!

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A boat traveling upstream goes 84 kilometers in 7 hours. If the return trip takes only 3 hours, what is the speed (in kilometers

Hunter-Best [27]

Speed = Distance ÷ time

Speed upstream = 84 ÷ 7 = 12 km/h

Speed downstream = 84 ÷ 3 = 28 km/h

Speed in still water = 1/2(28 + 12) = 20 km/h

Answer: 20 km/h

8 0

2 years ago

What is the equation of a line with a slope of -1/2 and passes through the point (6,-6)

Vlad [161]

Well I am going to assume you need slope-intercept form. So the equation is y=mx+b. m is slope, b is y intercept. So you just plug it in -6= -1/2(6)+b. -6=-3+b. Now you figure out for b so what does b have to be to make the equation equal. Well -3 so -6=-3+-3, or -6=-6.

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Hope that helped

3 0

2 years ago

PLZ HELP, WILL GIVE BRAINLIEST!!!

fiasKO [112]

Answer: $4 senior, $7 child

Step-by-step explanation:

(3s + 9c = 75)

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4 0

2 years ago

I'm really having trouble simplifying trigonometric expressions, I understand the identities, but sometimes I get stuck, and rea

Karolina [17]

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2 years ago

A builder is building a fence with 6-inch-wide wooden boards, arranged side-by-side with no gaps. How many boards are needed to

Varvara68 [4.7K]

Answer:

25 wooden boards

Step-by-step explanation:

Given that:

Width of wooden board = 6 inches

Number of boards required to build a fence of 150 inches long if there are no gaps :

The lenght of fence / width of wooden board

= 150 inches / 6 inches

= 25 wooden boards

6 0

2 years ago