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solniwko [45]
3 years ago
6

1

Mathematics
1 answer:
suter [353]3 years ago
6 0
Ok is there more to the question??
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Which addition does the model below represent?<br> A. 3+(-1)<br> B. 3+4<br> C. 3+ (-4)<br> D. 3+1
Gemiola [76]

Answer:

C. 3+ (-4)

Step-by-step explanation:

First we have three but then we go back 4 spaces which results in -1

The simplified answer of C. would be 3-4= -1

5 0
3 years ago
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If X = 5 units, then what is the volume of the cube shown above?
Ivenika [448]

Answer:

125 square units

Step-by-step explanation:

Since it's a cube, all sides are equal. So 5 x 5= 25 x 5= 125. Hope this helps!

8 0
3 years ago
A plane travels 360,000 meters in 900 seconds. What was its speed
Umnica [9.8K]
900 / 60 = 15
So, the plane traveled 360,000 meters in 15 minutes.
Generally, we do per hour. So, 15 mins * 4 = 60 mins or 1 hour. Because we multiplied the time by 4, we also need to multiply the distance by 4. 360,000 * 4 = 1440000 meters. The plane was traveling at 1440000 meters per hour.

However, it does not make sense to use meters for this long of a distance. I am going to convert it into miles (let me know if the question asks for a different unit of distance). 1 mile equals 1609.34 meters. Divide 1440000 by 1609.34 to get how many miles. 1440000 / 1609.34 = 894.7767408.

Therefore, the plane is going about 895 miles per hour--pretty fast!

7 0
4 years ago
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Could anyone please help me with this question? thanks
Tpy6a [65]
AB = AC, so this is an isosceles triangle, then angle B=angle C =66⁰.
m∠BAD = m∠CAD, so AD is a bisector. 
In an isosceles triangle, bisector is also median and height.
So AD is perpendicular bisector.
So angle x = 90⁰. 

In triangle ABC
m∠A+m∠B+m∠C=180⁰
m∠A+66+66=180
m∠A=180-66-66=48⁰

m∠A=48⁰
AD is a bisector of A, so y=m∠A/2=48⁰/2=24⁰


x=90⁰, y=24⁰
Answer is A
3 0
4 years ago
A rectangular swimming pool that is 10 ft wide by 16 ft long is surrounded by a cement sidewalk of uniform width. If the area of
mars1129 [50]

The pool has area 160\,\mathrm{ft}^2.

Let x be the width of the sidewalk. Then the combined area of the pool and sidewalk is (10+x)(16+x)=160+26x+x^2, so that the area of the sidewalk alone is 26x+x^2.

We're told this area is 155\,\mathrm{ft}^2, so

26x+x^2=155\implies x^2+26x-155=(x-5)(x+31)=0\implies x=5

6 0
3 years ago
Read 2 more answers
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