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EleoNora [17]
4 years ago
12

3x^2-16x-12 Solve for x

Mathematics
1 answer:
harkovskaia [24]4 years ago
6 0
What the question???????
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Please help need to finish ASAP
jok3333 [9.3K]

Look at the picture.

The triangle ADC and the triangle CDB are similar.

Therefore corresponding sides are all in the same proportion:

\dfrac{y}{4}=\dfrac{12}{y}\ \ \ \ |cross\ multiply\\\\y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\cdot\sqrt3\\\\y=4\sqrt3

Answer: 4√3

3 0
3 years ago
Thank you for helping me
Tresset [83]

Answer:

-8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help Please?
Studentka2010 [4]

Answer: 40 students

Step-by-step explanation:
50x4 = 200 students

10x4 = 40 students who chose red.


You can check your work by dividing 4 by 200 and 40 by 4.

6 0
2 years ago
168 is what per cent of 420
vagabundo [1.1K]

Answer:

<u>40%</u>

Step-by-step explanation:

Working out percentages

168 of 420 can be written as:

168 /420

420

To find percentage, we need to find an equivalent number with denominator 100. Multiply both numerator & denominator by 100

=(168/420)*(100)

= <u>40 /100 </u>

Therefore, the answer is <u>40% </u>

If you are using a calculator, simply enter 168÷420×100 which will give you 40 as the answer.

7 0
3 years ago
Read 2 more answers
Susan saw a recipe for a fruit salad she thought was fantastic for her upcoming get together of 20 people. It called for 1/2c of
natta225 [31]

Answer:

i would take 2c/ four servings of pineapples to serve all six people

Step-by-step explanation:

7 0
3 years ago
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