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9966 [12]
3 years ago
14

Can someone help me or at least tell my why my answer is wrong?

Mathematics
2 answers:
crimeas [40]3 years ago
6 0
The answer is 15 hope this helps
ch4aika [34]3 years ago
3 0
The correct answer should be 15
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Use the quadratic formula to solve x2+7x+3. Show all of your work. Then describe the solution.
Mariana [72]

Answer:

Step-by-step explanation:

The coefficients of the quadratic x^2 + 7x + 3 are a = 1, b = 7 and c = 3.

The discriminant is b^2 - 4ac, or 49 - 4(1)(3), or 49-12, or 37.

Because the discriminant is positive, we know that this quadratic equation has two real, different solutions.

      -7 ± √37

x = ---------------   =>   x = (-7 + √37)/2  and  x = (-7 - √37)/2

             2

In words:  This quadratic equation has two real, unequal solutions involving the radicand 37.

7 0
2 years ago
Ricardo is buying juice boxes for snack packs. Which is the best buy?
patriot [66]
Ummm I don’t find a way to give this a response, but the Best Buy it would be snack packs because he’s getting a finance
8 0
3 years ago
Write or draw to explain two different ways to find the difference for 12-3
ValentinkaMS [17]
12-3=9
12+(x)=-3
-3+(x)= -12
8 0
2 years ago
Read 2 more answers
PLEASE QUICKLY HELP ME!!
Ksju [112]

Answer:

Part A: 16x^2 -56x+49

I'm not quite sure on Part B and C though, sorry :/.

Step-by-step explanation:

To find the expression we need to solve (4x-7)•(4x-7)

4x•4x = 16x^2

4x•-7= -28x

-7•4x= -28x

-7•-7=49

Combine alike terms

16x^2-56x+49

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

3 0
3 years ago
Need Help Fast!!!!<br> Will Mark Brainlist!!!!<br> Will Rate!!!!<br> 9th Grade Honors Geometry
svetoff [14.1K]

Answer:

The Correct Answer is 4!

Step-by-step explanation:

We know on triangle 1 that 2 of the sides are 2 and 4 and there a right angle, an angle that has 90 degrees

with this we can calculate the top angle to be 26.565 which combined on both sides is equal to 90, lust you will then have to subtract 90 minus 26.565 and you will get 63.435. Now that we know than the top angle is equal to 63.435, the 2nd angle is equal to 90 degrees which by the way resembles a right angle, and that 1 side of the 3 sides is 2 we can conclude though the triangle formula that...

X=4.

That's it Hope I Helped.

7 0
3 years ago
Read 2 more answers
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