3 years ago

Please, I need your help! Can someone answer this immediately!

Mathematics

1 answer:

Helga [31]3 years ago

5 0

Answer:

true false false true

Step-by-step explanation:

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Write an algebraic expression that models the word phrase.

lutik1710 [3]

Answer:

B: 6x+2

Step-by-step explanation:

hope this helps :)

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2 years ago

A triangle has dimensions 5, 7, and 11. A similar triangle is drawn with a scale factor of 1.4. What are the dimensions of the n

Artyom0805 [142]

Your answer would be B

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3 years ago

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How do you write 3,029,251 in word form

Dmitrij [34]

Three million twenty nine and two hundred fifty one

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3 years ago

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3x^3-2x^2-147x+98=(ax-c)(bx+d)(bx-d) where a,b,c and d positive integers. Work out the value of a,b,c and d

Alexxx [7]

Expand the right side:

$(ax-c)(bx+d)(bx-d)=(ax-c)(b^2x^2-d^2)$

$=ab^2x^3-b^2cx^2-ad^2x+cd^2$

Notice that 98 = 2 * 7 * 7, so we have $c=2$ and $d=7$ .

Then

$-ad^2=-147\implies a=\dfrac{147}{49}=3$

and

$ab^2=3\implies b^2=1\implies b=1$

6 0

3 years ago

A teacher is four time as old as a student .in 20 years, the student 's age will be half of the teacher 's age. How old are they

notka56 [123]

Let the present age of student be x
Present of teacher will be 4x

After 20 years,
Age of student = x + 20
Age of teacher = 4x + 20

According to the given condition after 20 years,
x + 20 = (4x + 20)/2
x + 20 = 2x + 10
2x - x = 20 - 10
x = 10

So student's present age is 10 years while teacher's is 4 x 10 i.e 40 years.

Hope This Helps You!

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3 years ago