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3 years ago

13

Help help help help

2 answers:

ANEK [815]3 years ago

5 0

Answer:

-2a+6

Step-by-step explanation:

-3a+a=-2a

1+5=6

-2a+6

kupik [55]3 years ago

3 0

Answer:

-2

Step-by-step explanation:

-3a+a=-2a+6 combine like numbers but a higher negative plus a positive is going to be a negative

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Find -3A+6B A=[-3 5 -6] [9 -5 3] B=[-2 6 7] [2 -1 -6]

-Dominant- [34]

$A=\left[\begin{array}{ccc}-3&5&-6\\9&-5&3\end{array}\right];\ B=\left[\begin{array}{ccc}-2&6&7\\2&-1&-6\end{array}\right]\\\\-3A=\left[\begin{array}{ccc}(-3)(3)&(5)(3)&(-6)(3)\\(9)(3)&(-5)(3)&(3)(3)\end{array}\right]=\left[\begin{array}{ccc}-9&15&-18\\27&-15&9\end{array}\right] \\\\6B=\left[\begin{array}{ccc}(-2)(6)&(6)(6)&(7)(6)\\(2)(6)&(-1)(6)&(-6)(6)\end{array}\right]=\left[\begin{array}{ccc}-12&36&42\\12&-6&-36\end{array}\right]$

$-3A+6B=\left[\begin{array}{ccc}-9+(-12)&15+36&-18+42\\27+12&-15+(-6)&9+(-36)\end{array}\right]\\\\-3A+6B=\left[\begin{array}{ccc}-21&51&24\\39&-21&-27\end{array}\right]$

4 0

3 years ago

I will give brainliest answer

adell [148]

Answer: A=351.68 cm²

Step-by-step explanation:

To find the area of the shaded region, we would subtract the area of the circle by the area of the inner circle.

Area of Circle

$A=\pi r^2$

$A=\pi (11)^2$

$A=121\pi$

Area of inner (white) circle

$A=\pi r^2$

$A=\pi (3)^2$

$A=9\pi$

Now that we have the area to the circle and inner circle, we would subtract to find the area of the shaded region.

$A=121\pi -9\pi$

$A=112\pi$

$A=351.68 cm^2$

3 0

3 years ago

The regular hexagon has a radius of 4 in.

Nostrana [21]

Base times height /2

4 times 2√3 /2= 41.56
Answer 42

6 0

4 years ago

Read 2 more answers

In circle O, the measure of ∠ROW is 110°. What is the measure of arc RAW?

Tanya [424]

Answer:

250°

Step-by-step explanation:

We know that a circle has a total of 360°.

Now we know that ∠ROW is 110° and that Arc RAW has the same End points as ∠ROW.

We can safely assume that arc RAW will be the difference of ∠ROW and 360°.

So we then get:

360° - 110° = 250°

This means that Arc RAW will be 250°

4 0

3 years ago

brian borrowed $12,500 from the bank at an annual simple interest of 6.5%. if he repaid the loan in five years, how much did he

Lostsunrise [7]

Answer:

$16562.50

Step-by-step explanation:

3 0

3 years ago