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guapka [62]
3 years ago
5

What is (-2, -1) rotated 90 degrees clock wise

Mathematics
1 answer:
Savatey [412]3 years ago
4 0

Answer:

(-1, 2)

Step-by-step explanation:

If we have a point (h,k) and it is rotated 90 degrees clockwise, the resulting point will have coordinates (k, -h).

So, basically the y coordinate becomes the x coordinate and x coordinate becomes the NEGATIVE of the y coordinate.

The point to rotate is (-2, -1), so after 90 degree clockwise rotation, it will become:

(-1, -(-2))

= (-1, 2)

This is the answer.

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3 1/3 + (-2 1/4) + 1 5/6=
trasher [3.6K]

Answer:

2\dfrac{11}{12}

Step-by-step explanation:

The first step is to ensure that all of the fractions have a common denominator.

3\dfrac{1}{3}+\left( -2\dfrac{1}{4} \right) + 1\dfrac{5}{6}= \\\\3\dfrac{4}{12} - 2\dfrac{3}{12} +1 \dfrac{10}{12}= \\\\1\dfrac{1}{12}+1\dfrac{10}{12}= \\\\\boxed{2\dfrac{11}{12}}

Hope this helps!

6 0
3 years ago
Dilip is going to paint a shoebox to use for storage of his trading cards. The shoebox is 23 inches long, 10 inches wide, and 8
chubhunter [2.5K]

The answer is 988 square inches. L=23 W=10 H=8

The equation for surface area is 2(L x W) + 2(L x H) + 2(W x H)

Next, you need to substitute the values into the equation to get:

Surface area= 2(23 x 10) + 2(23 x 8) + 2(10 x 8)

Now finish solving the equation to get an answer of 988 square inches!

5 0
3 years ago
Solve.<br> x² + 5x – 2=0
ExtremeBDS [4]

Answer:

1

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

2

+

5

−

2

=

0

x^{2}+5x-2=0

x2+5x−2=0

=

1

a={\color{#c92786}{1}}

a=1

=

5

b={\color{#e8710a}{5}}

b=5

=

−

2

c={\color{#129eaf}{-2}}

c=−2

=

−

5

±

5

2

−

4

⋅

1

(

−

2

)

√

2

⋅

1

Step-by-step explanation:

this should help

8 0
3 years ago
Read 2 more answers
Which translation will change figure ABCD to figure A prime B’C’D’?
levacccp [35]

Answer:

gods plan by drake

Step-by-step explanation:

3 0
3 years ago
7(3x + 5y)<br> Simplify this expression please!
lbvjy [14]

Answer:

21x + 35y

Step-by-step explanation:

Distribute the 7 to everything in the parentheses.

7*3=21

7*5=35

5 0
3 years ago
Read 2 more answers
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