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KonstantinChe [14]
3 years ago
15

Solve for a. 8.1 = a - (-2.4)

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0

Answer: 5.7

Step-by-step explanation:

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Solve for x in the equation x^2-10x+25=35.
KatRina [158]
So, this is too vague but I'll solve for both quadratic formula and find the discriminant.

Quadratic formula: <span>x=<span>5+<span><span><span>√35 OR</span><span> </span></span>x</span></span></span>=<span>5−<span>√<span>35
Finding the discriminant: 141</span></span></span>
3 0
3 years ago
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If a &lt; 0 and c &gt; b, circle the expression that is greater:
matrenka [14]

Answer:

The expression that is greater is a (b - c)

Step-by-step explanation:

  • a < 0 and c > b, this means <u>(by the addition property)</u> that c - c > b - c⇒0 > b - c

so for the product <u>a(b - c) </u>we would have a multiplication of a negative number <em>a</em> and another negative number <em>(b - c)</em>. We know that the result of the <u>multiplication of two negative numbers  is a positive number.</u>

Therefore, a (b - c) > 0

  • a < 0 and c > b, this means <u>by the addition property</u> that c - b > b - b⇒ c - b > 0

so for <u>a(c - b)</u>, we have the negative number <em>a</em> multiplied by the positive number <em>(c - b). </em>We know that the result of the <u>multiplication of a negative number by a positive number is negative. </u>

<u>Therefore  a (c - b) < 0</u>

Thus, the expression that is greater is the positive one which is a (b - c)

5 0
3 years ago
Need help with number 13
Taya2010 [7]

Answer:

What's the question?

Step-by-step explanation:

5 0
3 years ago
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4 2/3 divide by 1 2/3
sladkih [1.3K]

Answer:

14/5

Step-by-step explanation:

I'd suggest rewriting both mixed numbers as improper fractions.  Then we'd have:

14/3 and 5/3

Dividing 14/3 by 5/3 is equivalent to dividing 14 by 5, since the denominators are the same (3).

Quotient is 14/5.

3 0
3 years ago
Langston has $45$ greeting cards. He gives $18$ of the cards to his friends. What percent of his greeting cards does he give to
dalvyx [7]

Answer:

45-18=27 Greeting cards

Step-by-step explanation:

3 0
3 years ago
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