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kompoz [17]
2 years ago
13

Simplify the expression 2(3+d-1)=

Mathematics
1 answer:
Alex73 [517]2 years ago
3 0

Answer:

4+2d

Step-by-step explanation:

2(3+d-1)

6+2d-2=6+(-2)+2d

=4+2d

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Circle the value of the meaning of the underlined 572 underline is the 5
vekshin1

the 5 is in the hundreds place, the 7 is in the tens place and the 2 is in the ones place

8 0
2 years ago
Bryce measured the circumference of a tree trunk. Its circumference was 91 ft. What was the approximate diameter, rounded to the
iren2701 [21]

Answer: 29 feet.

Step-by-step explanation: The formula for the circumference of a circle is C = π d. In order to calculate the diameter of the tree we will use the same formula and solve for d.

91 = 3.14 x d

In order to solve for d you need to divide both sides for 3.14:

D = 28.98, rounded to the nearest foot is 29 feet.

5 0
3 years ago
A sauce recipe uses four cans of tomatoes in every 2 1/2 quarts how many cans of tomatoes are used in each court of sauce
romanna [79]

Answer:

I hope this is what youre looking for

2.5 cups in every can

Step-by-step explanation:

2 1/2 quarts = 10 cups

divide 10 by 4

which is 2.5 cups

8 0
3 years ago
6. Romeo is planning to elope with Juliet tonight. He knows that her windowsill is 18 feet from the ground. He also knows the 4-
Ierofanga [76]

Answer:

24' ladder

Step-by-step explanation:

It is sometimes useful to illustrate situations given in problems, as in this case;

The wall will be a vertical with a height 18 ft and the ladder will be away from the wall at the bottom and against the wall at the top end;

This is shown in the picture and as can be seen, it is a right-angle triangle;

We are told there is 4-to-1 rule, with which we can find the distance of the ladder from the wall at the bottom, denoted as a in the picture;

The rule is essentially saying the ratio of the vertical height of the ladder to the horizontal distance is 4 : 1, or ⁴/₁ (or just 4)

We know the vertical height of the ladder needs to be 18 ft since the window is that high up the wall;

The ratio will be 18 : a, or ¹⁸/ₐ

We can set the fractions equal to each other and solve:

¹⁸/ₐ = ⁴/₁

¹⁸/ₐ = 4

18 = 4a

a = 18/4

a = 4.5

The distance from the wall at the bottom should be 4.5 ft according to the 4-to-1 rule

Now we have the 2 sides of our triangles we can use Pythagoras theorem to find the length of the ladder, denoted x;

x² = (18)² + (4.5)²

x² = 324 + 20.25

x² = 344.25

x = 18.5539753

The ladder must be at least 18.6' long to be able to lean against the wall, reaching the window and complying with the 4-to-1 rule;

The ladder size therefore will be the 24' ladder, since it has a maximum length of 21' which can reach the window;

The smaller option, the 20', could be used since the reach is 19' 10", which is sufficient to reach Juliet but it would not likely be suitable for climbing into the window since it is not long enough;

Since he may climb into the window according to the scenario, the answer should be the 24' ladder both if he does or does not climb into the window;

I'm quite clueless about what to do with the information in the last 2 columns, not even sure what they mean to be honest so I think they are irrelevant.

4 0
2 years ago
Please look at the image and help me please
dsp73

oh shi sorry I wish I could help but I'm stupid

5 0
3 years ago
Read 2 more answers
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