I NEED HELP IN THIS QUESTION PLEASE

Answers

Answer 1

Answer: The answer would be H 48 ÷ 6

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Adrian jogs 3\4 mile each morning.How many days will it take him to jog 3 miles? Plz help

Answers

It would take Adrian 4 days, if you add 3/4 four times all together you will end up with 12/4. Then you have to simplify it, getting the answer 3. Hope this helped! :)

A video game store has a 20% sale on all video games. If the game you wanted cost $32.00,what would the discount be?

Answers

Multiply the decimal conversion of 20% by 32 to find the discount. 20% = 0.20, so 0.20*32 = 6.4. Therefore, the discount is $6.40.
Hope that helped.

You would do cross multiplication and your answer should be $6.40

chad has two pieces of wood.one piece is7\12 foot long the second piece is 5\12 foot longer then the first piece. how long is the second one

Answers

These fractions both have the same denominators so we can add them without having the equate them first.

The only thing you have to do is add the numerators (7 and 5), and keep the denominators the same.

7 5 12
-- + --- = ------
12 12 12

When you simplify 12/12 it becomes 1.

The second piece of wood is 1 foot long

What is the greatest common factor of 90 and 15

Answers

$90: \ 30, \ 6 \n 15: \ 5, \ 1 \n 3 \ x \ 5 \ = \ 15 \n GCF: \ 15$

Whats the difference between linear equations and quadratic equation

Answers

Answer:

Step-by-step explanation:

A linear equation in two variables doesn't involve any power higher than one for either variable. It has the general form Ax + By + C = 0, where A, B and C are constants. ... A quadratic equation, on the other hand, involves one of the variables raised to the second power. It has the general form y = ax2 + bx + c

Please Help Me !!!!!!

1. Polynomials Add or subtract

(4x2 + 15x – 3) – (–3x2 + 5) (1 point)

A.7x2 + 15x – 8

B.x2 + 12x + 2

C.x2 + 15x – 8

D.7x2 + 8 2.

2. Simplify the polynomial.

–3f2 + 4f – 3 + 8f2 + 7f + 1 (1 point)

A.5f2 – 11f + 2

B.11f2 + 11f + 2

C.5f2 + 11f – 2

D.–5f2 + 11f – 2

3. Add or subtract

(2x2 + 6x + 1) + (–7x2 + 2x – 3) (1 point)

A.5x2 – 4x – 2

B.–5x2 + 8x – 2

C.5x2 – 8x + 2

D.–9x2 – 8x + 2

4. Name the coefficients in the polynomial.

4x2 + 3x – 3 (1 point)

A.4, –3, –3

B.4, 3

C.4, 3, 3

D.–4, –3

5. How many terms are in the following polynomial?

6x4 + 3x3 – 2x2 + 15x – 14 (1 point) A. 5

B.4

C.3

D.2

6. In the expression –7x – 5x2 + 5, what is the coefficient of x? (1 point)

A.7

B.5

C.–5

D. -7

7. Write the expression using scientific notation.

(2.5 • 104)(4 • 103) (1 point)

A.10 • 107

B.10 • 108

C.1 • 108

D.10 • 1012

8. Write the expression using a single exponent.

22 • 28 (1 point)

A.410

B.210

C.416

D.216

Answers

Answer:

(1) A

(2) C

(3) B

(4) The coefficients are 4,3,-3.

(5) A

(6) D

(7) C

(8) B

Step-by-step explanation:

(1)

The given expression is

$(4x^2 + 15x - 3) - (-3x^2 + 5)$

Using distributive property.

$(4x^2 + 15x - 3) - (-3x^2) -( 5)$

$4x^2 + 15x - 3 + 3x^2 - 5$

On combining like terms.

$(4x^2+3x^2) + 15x +(- 3 - 5)$

$7x^2 + 15x-8$

Therefore, the correct option is A.

(2)

The given expression is

$-3f^2 + 4f - 3 + 8f^2 + 7f + 1$

On combining like terms.

$(-3f^2+ 8f^2) +( 4f + 7f )+(- 3 + 1)$

$5f^2 +11f -2$

Therefore, the correct option is C.

(3)

The given expression is

$(2x^2 + 6x + 1) + (-7x^2 + 2x - 3)$

Combined like terms.

$(2x^2-7x^2) + (6x+ 2x) + (1 - 3)$

$-5x^2 + 8x -2$

Therefore, the correct option is B.

(4)

The given expression is

$4x^2 + 3x - 3$

A number before variable terms are called coefficient of that term.

Therefore, the coefficients are 4,3,-3.

(5)

The given expression is

$6x^4 + 3x^3 - 2x^2 + 15x - 14$

It this polynomial, the number of terms is 5.

Therefore the correct option is A.

(6)

The given expression is

$-7x - 5x^2 + 5$

The coefficient to x is -7.

Therefore, the correct option is D.

(7)

The given expression is

$(2.5\cdot 10^4)(4\cdot 10^3)$

$(2.5\cdot 4)\cdot (10^4\cdot 10^3)$

Using product property of exponent.

$(10)\cdot 10^(4+3)$

$1\cdot 10^(1+4+3)$

$1\cdot 10^(8)$

Therefore, the correct option is C.

(8)

The given expression is

$2^2\cdot 2^8$

Using product property of exponent.

$2^(2+8)$

$2^(10)$

Therefore, the correct option is B.

$1.\n(4x^2+15x-3)-(-3x^2+5)\n=4x^2+15x-3+3x^2-5\n=7x^2+15x-8\leftarrow A.$

$2.\n-3f^2+4f-3+8f^2+7f+1\n=5f^2+11f-2\leftarrow C.$

$3.\n(2x^2+6x+1)+(-7x^2+2x-3)\n=2x^2+6x+1-7x^2+2x-3\n=-5x^2+8x-2\leftarrow B.$

$4.\n4x^2+3x-3\n\{4;\ 3;-3\}$

$5.\n6x^4+3x^3-2x^2+15x-14\n\{6;\ 3;-2;\ 15;-14\}\to5\leftarrow A.$

$6.\n-7x-5x^2+5\n\{-7\}\leftarrow D.$

$7.\n(2.5\cdot10^4)(4\cdot10^3)=2.5\cdot4\cdot10^(4+3)=10\cdot10^7\n=10^(1+7)=10^8=1\cdot10^8\leftarrow C.$

$8.\n2^2\cdot2^8=2^(2+8)=2^(10)\leftarrow B.$

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Mrs. Beach bought shells at a gift shop. The red shells (r) were $0.75 each, and the white shells (w) were $0.49 each. The total cost was $4.70 for 8 shells. Later, the clerk forgot how many of each color shell he sold, so he guessed 4 red and 4 white shells. That was 8 shells, but the cost was $4.96. What advice would you give the clerk for his next guess?