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3 years ago

What is 3.4 * 5.6 answer?

Mathematics

2 answers:

Tom [10]3 years ago

6 0

19.04 is the answer

hope that helps :)

kvv77 [185]3 years ago

3 0

109.04 is the answer hope it helped

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a. On a hiking trip Bob and his two friends hiked 15 miles the first day, 10 miles on the second and 7 miles on the third day. I

Len [333]

Answer: A. 14 miles each day.

Step-by-step explanation:

Day 1 : 15 miles

Day 2 : 10 miles

Day 3 : 7 miles

15 + 10 + 7 = 32 miles

60 - 32 = 28 miles

2 days left

28/2 = 14

14 is less than 18

7 0

3 years ago

The equation 2y+53=165 represents the situation “ Joel spent $165 on a pair of jeans and two shirts at the same price.” What doe

Anvisha [2.4K]

1. answer is C

2. answer is D

3. answer is A

7 0

2 years ago

Read 2 more answers

Olivia signed up for a streaming music service where there's a fixed cost for monthly membership and a cost per song downloaded.

Nuetrik [128]

Answer:

(A)If x represents the number of songs she downloads then it is a variable because of the AMOUNT of songs she downloads.

Step-by-step explanation:

For example if we had f(x)=2 the equation would be c=4.99+.75(2)

.75*2=1.50+4.99=

(6.49 = c) cost per month if she downloads 2 songs

8 0

3 years ago

Read 2 more answers

✓ 10

liraira [26]

Answer:

Decrease in dollars is $555.00, $6845.00 was in his account at the end of last year.

Step-by-step explanation:

7400 times 7.5/100

=74 times 7.5

=$555.00

7400-555=$6845.00

7 0

2 years ago

Find the polynomial of minimum degree, with real coefficients, zeros at

drek231 [11]

Answer:

$\huge\boxed{p(x)=4x^3-20x^2+4x+300}$

Step-by-step explanation:

$\text{If}\ x=4\pm3i\ \text{and}\ x=-3\ \text{are the zeros of a polynomial, then it has a form:}\\\\p(x)=\bigg(x-(4-3i)\bigg)\bigg(x-(4+3i)\bigg)\bigg(x-(-3)\bigg)\bigg(r(x)\bigg)\\\\p(x)=(x-4+3i)(x-4-3i)(x+3)\bigg(r(x)\bigg)\\\\p(x)=\underbrace{\bigg((x-4)+3i\bigg)\bigg((x-4)-3i\bigg)}_{\text{use}\ (a+b)(a-b)=a^2-b^2}(x+3)\bigg(r(x)\bigg)\\\\p(x)=\bigg((x-4)^2-(3i)^2\bigg)(x+3)\bigg(r(x)\bigg)\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2$

$p(x)=(x^2-2(x)(4)+4^2-3^2i^2)(x+3)\bigg(r(x)\bigg)\qquad\text{use}\ i^2=-1\\\\p(x)=(x^2-8x+16-9(-1))(x+3)\bigg(r(x)\bigg)\\\\p(x)=(x^2-8x+16+9)(x+3)\bigg(r(x)\bigg)\\\\p(x)=(x^2-8x+25)(x+3)\bigg(r(x)\bigg)\qquad\text{use FOIL}:\ (a+b)(c+d)=ac+ad+bc+bd\\\\p(x)=\bigg((x^2)(x)+(x^2)(3)+(-8x)(x)+(-8x)(3)+(25)(x)+(25)(3)\bigg)\bigg(r(x)\bigg)\\\\p(x)=(x^3+3x^2-8x^2-24x+25x+75)\bigg(r(x)\bigg)\qquad\text{combine like terms}\\\\p(x)=(x^3-5x^2+x+75)\bigg(r(x)\bigg)$

$\text{The y-intercept is at 300}.\\\\\text{For}\ w(x)=a_nx^n+a_{n-1}x^{n-1}+a_{n-2}x^{n-2}+...+a_1x+a_0\\\\\text{y-intercept is}\ a_0\\\\\text{Therefore for}\ p(x)=(x^3-5x^2+x+75)\bigg(r(x)\bigg)\\\\\text{y-intercet is}\ 75\bigg(r(x)\bigg)\\\\75\bigg(r(x)\bigg)=300\qquad\text{divide both sides by 75}\\\\r(x)=4\\\\\text{Finally:}\\\\p(x)=(x^3-5x^2+x+75)(4)\qquad\text{use the distributive property}\\\\p(x)=(x^3)(4)+(-5x^2)(4)+(x)(4)+(75)(4)\\\\p(x)=4x^3-20x^2+4x+300$

7 0

3 years ago