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rewona [7]
2 years ago
5

Determine if true: 8x2-63=-40

Mathematics
2 answers:
TiliK225 [7]2 years ago
4 0
This answer is false
prohojiy [21]2 years ago
3 0

Answer:

False

Step-by-step explanation:

8x2=16

16-63=-47

-47=-40

The numbers do not match.

Hence, the equation is false.

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Isosceles triangle ABC is shown below. What is the value of x?
vovangra [49]

Answer:

Where is the triangle shown below?

Step-by-step explanation:

6 0
3 years ago
John needs 7 gallon bottles of water to fill 90water balloons how many gallon bottles of water does John need to purchase to fil
Allushta [10]

Answer:

11 bottles

Step-by-step explanation:

make a proportion because if you're using the same rate proportions can show that it's equal

\frac{7}{90} = \frac{x}{140}

cross multiply

7 *140= 980

divide the answer by 90 to find x

980/90= 10.8

round to 11 because you can't have 10.8 bottles

8 0
3 years ago
Seriously, I don't like when they put "Not enough information". I feel like there is something missing.
Marizza181 [45]
Hey there Gary!

If Angle DBC is 73, you do subtract it from 180 to get ABD.

180 - 73 = 107

Angle ABD = 107
Angle DBC = 73

Angle ABD > DBC
or
Angle DBC < ABD

The line BD/DB is the same length in both angles, proving line AD is greater than CD. This is also justified by the fact that lines AB and CB are congruent.

I hope this helps, let me know if there's something wrong about my answer.
4 0
3 years ago
Read 2 more answers
What is the domain and range of the function shown in the graph?
love history [14]
The domain is the set of all x values which are defined (appear on the graph) of the function. In this system, all values from negative infinity to 0, but not including zero, and all values above zero, through positive infinity, are valid. We can write this in set builder notation as x: (-∞,0)∪(0,∞).

The range is the set of all y values which are defined in the function. Like the domain, the range of this function contains all value from negative infinity to positive infinity except zero. Same notation: y: : (-∞,0)∪(0,∞).


3 0
3 years ago
How is estimation helpful in finding a product mentally? Explain.
Ulleksa [173]
When you estimate you either round up or down to get an even number. It's easier to mentally multiply numbers ending in 0.
5 0
3 years ago
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