3 years ago

When point e (-7, 2) is rotated 90º counterclockwise about the origin, it becomes point e' (-2, -7)?

Mathematics

1 answer:

Mamont248 [21]3 years ago

7 0

Yes the point(-7, 2) rotated 90<span>º counterclockwise is (-2, -7).
</span>

You might be interested in

If f(x) = x2 − 1, and f(2a) = 35, then what could be the value of a ?

Doss [256]

F(2a)=35
35=(2a)^2-1
35=4a^2-1
minus 35 from both sidse
0=4a^2-36
facor out 4
0=4(a^2-9)
factor differece of 2 perfect squares
0=4(a-3)(a+3)
set to zero
a-3=0
a=3

a+3=0
a=-3

a=-3 or 3

6 0

2 years ago

Combine like terms to simplify the expression:<br><br> 3.26d+9.75d-2.65

gogolik [260]

3.26d+9.75d-2.65 =13.01d−2.65

4 0

2 years ago

Read 2 more answers

The number -3 can be classified as which of the following? A. an integer B. a rational number C. a real number D. all of the abo

Tamiku [17]

It can be classified as all of the above

7 0

3 years ago

Simplify -1/64........

Anettt [7]

Answer:

- 2⁻⁶

Step-by-step explanation:

To simplify this we have to know the following rules.

(i) (xᵃ)ᵇ = xᵃᵇ

(ii) 1/xᵃ = x⁻ᵃ

Given: $\frac{-1}{64}$

= $\frac{-1}{4^3}$

= $\frac{-1}{(2^2)^3}$

= $\frac{-1}{2^6} \hspace{10mm}$ [using (i)]

= $2^{-6}$ [using (ii)]

Hence, the simplified form would be: $2^{-6}$

8 0

3 years ago

In a class of students, the following data table summarizes how many students have a

Allisa [31]

Answer:

Step-by-step explanation:

total students = 27

students do not have a brother probability = 13/27

students do not have a sister probability = 12/27

= 4/9

Hope this is correct :)

3 0

3 years ago