Can u like answer one of them like number three if u answer all of them I’ll make u brainly tho-

Mathematics

1 answer:

katrin [286]2 years ago

4 0

Answer:

U were correct. k = 2

Step-by-step explanation:

-9k - 6k = -30

group all ks

-15k = -30

divide by -15

k = 2

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Every weekday, Tasha walks 3/8 mile to go to school. After school, she walks 2/8 mile to go to her grandparents' house. Then she

fenix001 [56]

There are two possibilities, and we don't know which situation is true.

#1). School is in the middle, between home and grandparents.

Home --------- 3/8 ----------- School --------- 2/8 ------- Grandparents .

If this is true, then in the whole day, Tasha walks

(3/8 + 2/8 + 2/8 + 3/8) = 10/8 = 1.25 miles .

===========================================

#2): Grandparents house is in the middle, between home and school.
Tasha passes by them on her way to school, and stops there to visit
on her way back home.

Home ------- 1/8 ------- Grandparents ---------- 2/8 ---------- School

If this is true, then in the whole day, Tasha walks

(3/8 + 2/8 + 1/8) = 6/8 = 3/4 mile .

5 0

2 years ago

Read 2 more answers

Calculate this reflection of the triangle:

Mice21 [21]

Answer:

a = 3, b = 0, c = 0, d = -2

Step-by-step explanation:

To find the reflection Multiply the matrices

∵ The dimension of the first matrix is 2 × 2

∵ The dimension of the second matrix is 2 × 3

1. Multiply the first row of the 1st matrix by each column in the second matrix add the products of each column to get the first row in the 3rd matrix.

2. Multiply the second row of the 1st matrix by each column in the second matrix add the products of each column to get the second row of the 3rd matrix

$\left[\begin{array}{ccc}1&0\\0&-1\end{array}\right]$ × $\left[\begin{array}{ccc}0&3&0\\0&0&2\end{array}\right]$ = $\left[\begin{array}{ccc}(1*0+0*0)&(1*3+0*0)&(1*0+0*2)\\(0*0+-1*0)&(0*3+-1*0)&(0*0+-1*2)\end{array}\right]=\left[\begin{array}{ccc}0&3&0\\0&0&-2\end{array}\right]$