I really need help with this problem.

Mathematics

2 answers:

weeeeeb [17]3 years ago

3 0

What’s the problem it’s not appearing

Tomtit [17]3 years ago

3 0

Answer:

-6, -5 2/5, -4 1/5

Step-by-step explanation:

plug in 1, 4 and 10

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How many solutions does the equation have? 7x +3 - x=3(1 + 2x) (A) 0 (B) 1. (C) infinitely many

tekilochka [14]

Answer:

C) Infinitely many

Step-by-step explanation:

7x+3-x=3(1+2x)

6x+3=3+6x

Subtract 3 from both sides

6x = 6x

Infinitely many solutions

5 0

3 years ago

Given the Arithmetic sequence A1,A2,A3,A4 61, 74, 87, 100 What is the value of A15?

Rufina [12.5K]

A15=243
74-61=13
87-61=13
So they're adding 13 every time.
A15 is 11 terms from A4 which is the last one you are given so 11*13=143
143+100=243

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3 years ago

The mass of a grain of dad is 10^-3 grams. about how many grams of sand are in a 10kg bag of sand.

Mashutka [201]

98-787 eng 676 #56 is done

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3 years ago

Please help with this

slava [35]

Answer:

D) x= $\frac{-2+-2\sqrt{7} }{3}$

Step-by-step explanation:

The quadratic formula is : $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

A in terms of this question=9

B in terms of the question is 12

C in terms of the question is -24.

This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula. So once substituted the formula of $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ becomes $\frac{(-12)+-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}$ . Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.