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Alexandra [31]
3 years ago
13

What is a equations ?

Mathematics
2 answers:
myrzilka [38]3 years ago
4 0
An equation says that two things are equal. It will have an equals sign "=" like this:

<span>7 + 2 = 10 − 1</span>
spayn [35]3 years ago
3 0
Subtract 1 from ten  , because that is how it works out 
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The perimeter of a rectangular parking lot is 292 m.
Reika [66]

Answer:

the answer would be 211

Step-by-step explanation:

you simply add the length and width together to find perimeter. since you have the total perimeter and the length you would instead subtract the two.

292-81= 211

4 0
3 years ago
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Lisa bought some books. She spent a total of $45 after a discount of $6 off of her total purchase. Each book cost $3. How many b
elena55 [62]

Answer:

She spent 17 books  

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8 0
3 years ago
A scientist who studies sleep has developed a new technique to help people sleep each night. He
Andru [333]

Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis H_0: \mu = 0; Alternative hypothesis H_1: \mu \neq 0.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by \mu is of 0, hence:

H_0: \mu = 0

At the alternative hypothesis, it is tested if there is a difference, hence:

H_1: \mu \neq 0

More can be learned about an hypothesis test at brainly.com/question/26454209

7 0
2 years ago
The formula for the area of a triangle is a =1/2bh in which b represents the length of the base Andy represents the height. If a
aleksandrvk [35]
A=1/2bh
Data:
a=192 mm²
h=12 mm


therefore:
192 mm²=1/2(b)(12 mm)
192 mm²=6b mm
b=192 mm²/6 mm
b=32 mm

Answer: the measure of the base is 32 mm
4 0
3 years ago
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On a map, 1 centimeter represents a distance of 15 kilometers. How many kilometers are represented by 7 centimeters?
marishachu [46]

Answer:

105

Step-by-step explanation:

15 times 7 =105

5 0
2 years ago
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