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STALIN [3.7K]
3 years ago
14

I NEED HELP ON 4,6,7,8,9 (ALGEBRA)

Mathematics
1 answer:
wolverine [178]3 years ago
5 0
The only one I know is 7. Which is C
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The length of a rectangle is 3 yd longer than its width. if the perimeter of the rectangle is 50 yd , find its length and width.
leva [86]
Length = w+3
P = 2L +2W
50 = 2(w+3) + 2w
50 = 2w +6 +2w
50 = 4w +6
50-6 =4w-6
44 = 4w
44/4 = 4w/4
w = 11
l = 11+3
l = 14

50 = 2L+2W
50 = 2(14) + 2(11)
50 = 28 +22
50=50

7 0
3 years ago
If $(2x+5)(x-3)=14$, find the sum of the possible values of $x$.
MA_775_DIABLO [31]

Answer:

x = 1/4 ± 1/4√233

Step-by-step explanation:

(2x + 5)(x - 3) = 14

~Use FOIL on the left side

2x² - 6x + 5x - 15 = 14

~Combine like terms

2x² - x - 15 = 14

~Subtract 14 to both sides

2x² - x - 29 = 0

~Use the quadratic formula and simplify

x = 1/4 ± 1/4√233

Best of Luck!

7 0
3 years ago
Can someone please help me with this question
ZanzabumX [31]

Answer: ask a parent or just google it

Step-by-step explanation:

8 0
4 years ago
Leandro wants to build a one-sample
9966 [12]

Answer:

2.326

Step-by-step explanation:

3 0
3 years ago
400 people were asked if they liked their school lunch.10% said yes. 32 of those that said yes were boys.152 of those that were
lbvjy [14]

Using proportions, considering the total number of students, it is found that 216 boys to linking their school lunch.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, 400 - 152 = 248 boys were surveyed. 32 said they liked the school lunch and 248 - 32 = 216 said no liking their school lunch.

More can be learned about proportions at brainly.com/question/14398287

#SPJ1

6 0
2 years ago
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