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AnnyKZ [126]
3 years ago
7

Solve the equations using the quadratic formula. x^2 - 4x + 3 = 0 x^2 + 10x = -25

Mathematics
1 answer:
Vlad [161]3 years ago
8 0
X²-4x+3=0
(x-3)(x-1)=0
x=3 or x=1

x²+10x=-25
x²+10x+25=0
x=5 or x=-5
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What's the answer for 3/4 (x+3)=9
Vitek1552 [10]
We want to solve the equation :

\displaystyle{  \frac{3}{4}(x+3)=9


first, multiply both sides by 4:

\displaystyle{ \cancel{4} \cdot \frac{3}{ \cancel 4 }(x+3)=4\cdot 9

\displaystyle{ 3(x+3)=36


divide both sides by 3:

x+3=12


add -3 to both sides:

x=9



Answer: x=9
3 0
3 years ago
A number c multiplied by -2 is no less than - 3. Write this word sentence as an inequality.
antiseptic1488 [7]

Answer: -3 ≤  -2c

Step-by-step explanation:

First multiply C by -2, and make sure it's not less than -3. It can be -3, but it can't be less than.

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A city is designing a new trail system that will be
lyudmila [28]

Step-by-step explanation:

the answer is 6.125 and its will be divided by 125

3 0
3 years ago
In slope-intercept form, write the equation of the line that passes through points (-7, 8) and (2, -2).
Ymorist [56]

Answer:

y = -1x + 0.5

Step-by-step explanation:

First, I plotted the points (-7, 8) and (2, -2). Then, I drew a line connecting the two points. At the point (-7, 8), I went down 2 squares and to the right 2. This would give me a slope of -1. Since the line touches the y-axis at 0.5, this is the y-intercept.

I am not sure about the y-intercept of this equation. If I got this wrong, I am sorry and please let me know. Thank you!

3 0
3 years ago
Read 2 more answers
Which of the fractions shown has the greatest value?
kobusy [5.1K]
Greetings!

The best way to compare fractions is to find the LCM (The Lowest Common Denominator) of each of the fractions. This can be done simply by listing the multiples of the denominators.

Multiples:
3: 3,6,9,12,15,18,21,24,27...210,213
10:10,20,30,40,60,70,80...210,220
6: 6,12,18,24,30,36,42,48...210,216
7: 7,14,21,28,35,42,49...210,217

The LCM is 210:
3*70=210
10*21=210
6*35=210
7*30=210

Now, we must do what we do the denominators to the numerators:
1*70=70
70/210
2*21=42
42/210
1*35=35
=35/210
2*30=60
=60/210

The fraction with the largest numerator has the greatest value; In this case it 1/3 or 70/210.

Hope this helps.
-Benjamin



4 0
3 years ago
Read 2 more answers
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