MATHEMATICS HIGH SCHOOL

Many of the constructions that the Greeks thought impossible were later proven impossible in the 18th and 19th centuries.A. True
B. False

Answers

Answer 1
Answer:

Answer:

True

Step-by-step explanation:

Types of proof:

You can use contradiction Or You can use decent.

Types of Dis-Proof:

You can use a counterexample Or You can use logical contradiction.

Note To Moderators:

Please don't delete this answer because I want to help everyone that I can during school hours.
Answer 2
Answer:

Answer: true

Step-by-step explanation:

I did the the test and. got it correct

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Help me asap .... will crown brainiest !

Answers

Answer:

B of course you dummy

Step-by-step explanation:

can anyone solve 4x^2 + 12x - 40 ? you would have to find what multiplies to get -40 but adds to get 12, but you do something with th 4x^2 as well

Answers


There's really nothing to solve, since there's no equation there.
Perhaps you want that expression factored.  We can do that.

First, all 3 terms share a common factor of 4.  Let's pull that out,
and see what's left to be factored:

                   4x² + 12x - 40  =  4 (x² + 3x - 10) .

Now, the expression left inside the parentheses looks
like it might be a lot easier to handle. 

Here's what the whole expression looks like after the
quadratic inside the parentheses is factored:

            4 (x² + 3x - 10)  =    4 (x + 5) (x - 2) .

There it is.  Understand ... we haven't changed anything,
and we haven't solved anything.  We only wrote the original
expression in a different form.  It's still just an expression that
stands for a number, and we won't know the number until
somebody tells us the value of 'x' .

Students in Miss Moseley's fourth grade class are learning multiplication, and they demonstrate mastery by passing assessments. Travis has passed 11 tests, and his classmate, Jenifer, has passed 2 tests. Going forward, Travis plans to pass 2 tests per week. Meanwhile, Jenifer plans to pass 5 tests per week. Eventually Jenifer will catch up to Travis. When the number of tests each student has passed are equal, how many tests will each student have passed and how many weeks will it take?

Answers

Jenifer

2+5 week 1

7+5 week 2

12+5 week 3

17 week4


Travis

11+2 week 1

13+2 week 2

15+2 week 3

17 week 4

-14-7(9v+3)=13v+41 ​

Answers

Answer:

v=−1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−14−7(9v+3)=13v+41

−14+(−7)(9v)+(−7)(3)=13v+41(Distribute)

−14+−63v+−21=13v+41

(−63v)+(−14+−21)=13v+41(Combine Like Terms)

−63v+−35=13v+41

−63v−35=13v+41

Step 2: Subtract 13v from both sides.

−63v−35−13v=13v+41−13v

−76v−35=41

Step 3: Add 35 to both sides.

−76v−35+35=41+35

−76v=76

Step 4: Divide both sides by -76.

−76v

−76

=

76

−76

v=−1

Answer:

v = 12.67

95% sure... I could be wrong, though.

Step-by-step explanation:

14-7(9v+3)=13v+41 ​

-14-63v-21=13v+41

-14-21=76v

6=76v

12.67=v

In a bakery that sells cookies there are 4 oatmeal cookies for every 11 chocolate cookies.If there are 285 cookies altogether how many oatmeal cookies are there?

Answers

Answer:

There are 76 oatmeal raisen cookies altogether.

Step-by-step explanation:

4 + 11 = 15

285/15 = 19

19 * 4 = 76

Solve for x: 4 over 5 x + 4 over 3 = 2x x = Write your answer as a fraction in simplest form. Use the "/" symbol for the fraction bar. (2 points)

Answers

Answer:

x = 10/9

Step-by-step explanation:

Solve for x:

(4 x)/5 + 4/3 = 2 x

Put each term in (4 x)/5 + 4/3 over the common denominator 15: (4 x)/5 + 4/3 = (12 x)/15 + 20/15:

(12 x)/15 + 20/15 = 2 x

(12 x)/15 + 20/15 = (12 x + 20)/15:

(12 x + 20)/15 = 2 x

Multiply both sides by 15:

(15 (12 x + 20))/15 = 15×2 x

(15 (12 x + 20))/15 = 15/15×(12 x + 20) = 12 x + 20:

12 x + 20 = 15×2 x

15×2 = 30:

12 x + 20 = 30 x

Subtract 30 x from both sides:

(12 x - 30 x) + 20 = 30 x - 30 x

12 x - 30 x = -18 x:

-18 x + 20 = 30 x - 30 x

30 x - 30 x = 0:

20 - 18 x = 0

Subtract 20 from both sides:

(20 - 20) - 18 x = -20

20 - 20 = 0:

-18 x = -20

Divide both sides of -18 x = -20 by -18:

(-18 x)/(-18) = (-20)/(-18)

(-18)/(-18) = 1:

x = (-20)/(-18)

The gcd of 20 and -18 is 2, so (-20)/(-18) = (-(2×10))/(2 (-9)) = 2/2×(-10)/(-9) = (-10)/(-9):

x = (-10)/(-9)

Multiply numerator and denominator of (-10)/(-9) by -1:

Answer: x = 10/9
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