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Lesechka [4]
3 years ago
5

Translate the sentence into an equation

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
4 0
7(y+2)=3
seven times the sum of a number (y) and 2
means y+2 multiplying by 7
Lyrx [107]3 years ago
3 0
7(x+2)=3

7
times the sum of a number ‘x’, and (which means add) is equal ‘=‘ to 3
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A shelf is designed so it will fit in a 90º corner between two walls. The shelf has dimensions, rounded to the nearest tenth, as
den301095 [7]

Answer:

Yes, it will fit snugly in a 90º corner

Step-by-step explanation:

To do this, we simply need to check if the given sides of the shelf is right-angled.

So, we have:

Hypotenuse = \sqrt{242

Side\ 1 = Side\ 2 = 11

To check for right-angle triangle, we make use of:

Side\ 1^2 + Side\ 2^2 = Hypotenuse^2

This gives:

11^2 + 11^2 = \sqrt{242}^2

121 + 121 = \sqrt{242}^2

242 = \sqrt{242}^2

242 = 242

This shows that the given sides of the shelf is a right-angled triangle.

Hence, it will fit the wall

4 0
3 years ago
Determine the measure of the missing angles. Show your work! Be ready to discuss your answer.
soldier1979 [14.2K]

For a.

Since there are already two angles given for the triangle, we can measure the last angle using this formula:

90 + 55 + a = 180

Now solve for "a".

90 + 55 + a = 180

145 + a = 180

a = 180 - 145

a = 35°

For b.

From the picture above, the two triangle's tip are touching and having to form <em>vertical angles. </em>This means that the angles are congruent to each other.

Now that we have two angles in the second triangle(35 and 120), we can use the same formula:

35 + 120 + b = 180

Now solve for "b":

35 + 120 + b = 180

155 + b = 180

b = 180 - 155

b = 25°

3 0
3 years ago
Read 2 more answers
Find the number of faces on this solid.
snow_lady [41]

Answer:

5 faces

Step-by-step explanation:

4 triangle faces + 1 square base face = 5 faces in total

7 0
3 years ago
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Help please, right answers :)
GuDViN [60]
B sorry if I’m wrong
6 0
3 years ago
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Can someone help me with this will give the brainliest
kiruha [24]

Answer:

148 in^2

Step-by-step explanation:

2(4 x 5) = 40

2(4 x 6) = 48

2(5 x 6) = 60

5 0
3 years ago
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