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Natali5045456 [20]
3 years ago
15

PLEASE HELP FAST ITS DUE IN 5 MINUTES!!! WILLMARK BRAINLIEST!!!!!!!

Mathematics
1 answer:
maria [59]3 years ago
4 0

Answer:

21

Step-by-step explanation:

Its a 3 by 7 square

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An elementary school has 1,134 seeds. The seeds will be planted in 27 rows.
bogdanovich [222]
42 plants will be planted in each row
You divide 1,134 by 27 and get 42 as your answer
3 0
2 years ago
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Describe the nature of the roots for this equation
vitfil [10]

First, fint the roots of the equation 2x^2+5x-7=0.

1.

D=5^2-4\cdot 2\cdot (-7)=25+56=81,\\\sqrt{D}=\sqrt{81}=9,\\ \\x_1=\dfrac{-5-9}{2\cdot 2}=-\dfrac{14}{4}=-3.5,\\ \\x_2=\dfrac{-5+9}{2\cdot 2}=\dfrac{4}{4}=1.

2. You can see that this equation has two different real roots. Note that you can make this statement without finding roots, only knowing the value of discriminant: since D=81>0, then the equation has two different real roots.

5 0
3 years ago
8 out of the 32 students at a school assembly were first-grade students. What percentage of the students at the assembly were fi
Evgen [1.6K]

Answer:

25%

Step-by-step explanation:

We can first divide and multiply by 100% to obtain the pecentage:

8/32 * 100% = 8/32 * 100/100 = 25%

<em>I hope this helped! :)</em>

3 0
3 years ago
BRAINLIEST
lina2011 [118]
First you find the unit rate for (2, 7). You divide y by the x so-ooo 7 ÷  2 = 3.5. Next you multiply the unit rate, 3.5, by 5 to get 17.5. Your answer is 17.5. I took a test with this question and that was the answer, in case you need assurance.

Hope this helps,
♥Nikki♥
4 0
3 years ago
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What is the slope of the line with points (-5, -4) and (2, 7)?
jolli1 [7]

Answer:

m = 11/7

Step-by-step explanation:

m = y2-y1/x2-x1

m = 7-(-4)/2-(-5)

m = 7+4/2+5

m = 11/7

6 0
3 years ago
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