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Alenkinab [10]
3 years ago
13

Plsss help me I don’t understand!!

Mathematics
1 answer:
inna [77]3 years ago
6 0

Answer:

11

Step-by-step explanation:

in the "score" section all you do is add all them up. And because there is a negative for ALL the numbers, all you do is add a negative after you add all the SCORES

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What are scale drawings? can you give an example?
Alecsey [184]
Scale Drawings are drawings that are used to show the true size of something.
Scale drawings are most commonly used in maps, or in large scale drawings. These show the scale of something. It may show that 1cm is equivalent to 1km, which would allow someone to measure the map to see how far the distance it. It also allows a map to be made smaller, and less detailed- making it often easier to read.
Hope this helps :) 
7 0
3 years ago
I need help on this quick
Pachacha [2.7K]

Answer:

The hypotenuse to the nearest tenth is 8.1

Step-by-step explanation:

We can use the Pythagorean theorem to solve

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

Let a be the x leg and b be the y leg

a = 7 units

b= 4 units

7^2 + 4^2 = c^2

49+ 16 = c^2

65 = c^2

Take the square root of each side

sqrt(65) = sqrt(c^2)

8.062257748 =c

To the nearest tenth

8.1 =c

7 0
3 years ago
A flight of stairs is supported by two columns, as shown in the diagram.
dangina [55]

Answer:

12 feet

Step-by-step explanation:


4 0
3 years ago
Eduardo spent half of his weekly allowance on clothes. To earn more money his parents let him weed the garden for $8. What is hi
lbvjy [14]

Answer: his weekly allowance is $8

The model to solve the problem is

X/2+8=12

Step-by-step explanation:

To get Eduardo's weekly allowance

Say it is x

Now he spent half of x on clothes and earns extra $8 more to end up with $12

Therefore

x/2+8=12

x/2=12-8

x/2=4

x=8

7 0
3 years ago
Read 2 more answers
Kim wants to know how many families in her small neighborhood of 70 homes would participate in a neighborhood sports event. She
tatuchka [14]

Answer:

Yes, this is a valid inference because she took a random sample of the neighborhood.

Step-by-step explanation:

As her survey was non bias and completely random and she found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. So, yes, this is a valid inference because she took a random sample of the neighborhood.

7 0
3 years ago
Read 2 more answers
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