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STatiana [176]
3 years ago
9

5-(-3.8) + 1.5I don't understand how to work problems like this ​

Mathematics
2 answers:
Marizza181 [45]3 years ago
8 0
Okay when subtracting 2 negatives the number will be come positive. Using this question ur new equation will be
5+3.8+1.5. You just type in your calculator and get your answer.
The answer is 10.3! Hope this helped!
marissa [1.9K]3 years ago
6 0
10.3

When there is a in front of an expression in parentheses, change the sign of each term in the expression.

So it becomes 5 + 3.8 + 1.5
Now it’s just simple math....
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Answer: Choice A

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==============================================

Explanation:

Congruent triangles are identical copies of one another. This means the corresponding pieces must be the same.

It's like saying two houses are identical, so that means the all the various parts (eg: front door, windows, etc) must be identical. If let's say the two front doors were different, then the houses wouldn't be completely identical.

Going back to the triangles, we know that the sides are congruent by the tickmarks

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That takes care of the first part of choice A.

And similarly, the angle markers tell us which angles are congruent

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2 years ago
The senior classes at High School A and High School B planned separate trips to Lake Compounce. The senior class at High School
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Answer:

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<em><u>remember</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>number</u></em><em><u> </u></em><em><u>your</u></em><em><u> </u></em><em><u>equations</u></em>

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make x the subject of one equation

and label it equation 3

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x =  \frac{206}{3}  -  \frac{7y}{6} .............3

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Therefore there are 15 students in each van and 46 students in each bus.

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