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Nostrana [21]
3 years ago
9

I NEED HELP WITH BOTH ASAP

Mathematics
1 answer:
myrzilka [38]3 years ago
8 0
1st answer:
3 more = plus 3
Product is multiplication, so it is saying 7x
Less than 26 = <26

Equation : 7x+3<26

Solution:
1st subtract 3 from both sides

7x+3<26
-3 -3
7x<23

Divide both sides by 7.

7x<23
÷7 ÷7
answer:
3\frac{2}{7}

Hope this helps
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Could these side lengths make a right triangle, 12m, 35m and 37m
natta225 [31]

Answer:

Yes

Step-by-step explanation:

Using Pythagorean theorem WHICH ONLY WORKS FOR RIGHT TRIANGLES,

a^2+b^2=c^2 where a and b are the two shortest legs.

12^2+35^2=c^2

144+1225=c^2

c^2=1369

c=\sqrt{1369}

c=37

3 0
3 years ago
Enter the correct value so that each expression is a perfect square trinomial
myrzilka [38]

Answer:

Step-by-step explanation:

1). x² - 10x + a²

  By using the formula of (a - b)² = a² - 2ab + b²

  x² - 2(5)x + a²

  Therefore, for a perfect square of the expression a should be equal to 5.

  Therefore, (x² - 10x + 25) will be the answer.

2). x² + 2ax + 36

  = x² + 2(a)x + 6²

  For a perfect square of the given expression value of a should be 6.

   x² + 2(a)x + 6² = x² + 2(6)x + 6²

                           = (x + 6)²

  Therefore, x² + 12x + 36 will be the answer.

3). x^{2}+\frac{1}{2}x+a^2

    x^{2}+2(\frac{1}{4})x+a^2

   To make this expression a perfect square,

   a² = (\frac{1}{4})^2

   x^{2}+2(\frac{1}{4})x+(\frac{1}{4})^2 = (x+\frac{1}{4})^2

  Therefore, the missing number will be \frac{1}{16}.

5 0
3 years ago
4+ 10(5-3) + 4 +62 is what <br> 18<br> 42<br> 21<br> 45
LenaWriter [7]

Answer:

18

Step-by-step explanation:

i k

Just todo the test so its tje ansiedad

4 0
2 years ago
Reciprocate 2 5/9 <br>plz and thx​
ZanzabumX [31]

Answer: 9/23

Step-by-step explanation:

1- Convert the mixed fraction to an improper fraction.  9 x 2 + 5 = 23 and keep the original denominator.  23/9

2- Now “flip” the fraction to its reciprocal. 23/9 becomes 9/23

3- Check to see if it can be reduced.  It cannot so there’s your answer.  9/23

6 0
2 years ago
The cost for n teachers to attend the technology conference is 3n+5 dollars. What is the cost for 7 teachers to attend
Veronika [31]
If it costs 3n+5, you have to plug 7 in for n and solve. 3(7)+5=26 so $26 

3 0
3 years ago
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