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2 years ago

Help please. Due today

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

7 0

Answer:

$210/6 is a better deal and unit will be $/g

Step-by-step explanation:

diamong [38]2 years ago

3 0

Answer:

145/5 is better deal and unit rate of deal is $29/g

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Find the product (7m^2-3m-7)(m^2-7m-6)

earnstyle [38]

Answer:

7m^4-52m^3-28m^2+67m+42

Step-by-step explanation:

(7m^2-3m-7)(m^2-7m-6)

7m^4-3m^3-7m^2-49m^3+21m^2+49m-42m^2+18m+42

7m^4-3m^3-49m^3-7m^2+21m^2-42m^2+49m+18m+42

7m^4-52m^3-28m^2+67m+42

4 0

3 years ago

Please check screenshot

nata0808 [166]

Answer:

im sorry but whats the question exactly i will try to awnser it

Step-by-step explanation

6 0

3 years ago

Find the 15th term of the arithmetic sequence -5x+3−5x+3, -9x-2−9x−2, -13x-7,.......???

Anna35 [415]

Answer:

- 61x - 67

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

d = - 9x - 2 - (- 5x + 3)

= - 9x - 2 + 5x - 3

= - 4x - 5 and a₁ = - 5x + 3, thus

$a_{15}$ = - 5x + 3 + 14(- 4x - 5) = - 5x + 3 - 56x - 70 = - 61x - 67

5 0

3 years ago

At noon Joyce drove to the lake at 30 miles per hour. but she made the long walk back home at 4 miles per hour. How long did she

mars1129 [50]

Answer:

60 miles

Step-by-step explanation:

let d = distance to the lake

Using: time = distance ÷ speed

Create expressions for the time it takes for each journey:

Drive: $t_1=\dfrac{d}{30}$

Walk: $t_2=\dfrac{d}{4}$

If total time = 17 hours

$\implies t_1+t_2=17$

$\implies \dfrac{d}{30}+\dfrac{d}{4}=17$

$\implies \dfrac{17d}{60}=17$

$\implies 17d=1020$

$\implies d=\dfrac{1020}{17}$

$\implies d=60$

Therefore she walked 60 miles

3 0

2 years ago

Read 2 more answers

Please help me with the Math. Thx in advance! <br> Number's 8-11. THANK YOU!

Stella [2.4K]

8 :=7
9= 2/3
10=3/20
11=4

8 0

3 years ago

Read 2 more answers