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inn [45]
3 years ago
12

1" title=" \sqrt{7a - 10} - \sqrt{2a + 5} = 0" alt=" \sqrt{7a - 10} - \sqrt{2a + 5} = 0" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

a=3

Step-by-step explanation:

\sqrt{7a-10} =\sqrt{2a+5} \\squaring\\7a-10=2a+5\\7a-2a=5+10\\5a=15\\a=3

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Does anyone know the bottom answer please
Rina8888 [55]

Answer:

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Step-by-step explanation:

Your answer should make sense

8 0
2 years ago
2y-3x=-14 can you figure it out
ahrayia [7]
-3x + 2y = 14
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8 0
2 years ago
Cheryl and her sister Diane walk to school along the same route. Cheryl walks at an average of
STALIN [3.7K]

The distance between their house and the school from the information given will be 777.60 meters.

<h3>How to calculate the distance?</h3>

The distance between their house and the school will be:

= 80 × 81 × 12

= 77760cm

= 777.60 meters.

When Diane takes 16 min to walk to school, the length of her steps will be:

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Learn more about distance on:

brainly.com/question/17273444

8 0
1 year ago
I need to answer and explain
nignag [31]

Answer:

parallel

Step-by-step explanation:

Solve both equations for y to make it easier to compare them.

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y = (5/2)x - 3

Since the slopes are the same, the two lines are parallel.

8 0
2 years ago
Describe the error in the work shown below.
Katena32 [7]

Answer:

the bottom equation should be 18+30=3(6+10)

Step-by-step explanation:

6(3+10) = 18+60 which equals 78

78 does not equal 18

5 0
2 years ago
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