1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BARSIC [14]
2 years ago
9

Please help me asap i’ll give you a thanks and 10 points

Mathematics
1 answer:
SVETLANKA909090 [29]2 years ago
6 0
Answer: B)
Explanation: when rotating a point a 90 degree counter clockwise origin a(x,y) becomes a’(-y,x) meaning you switch the x and y and make the y negative
You might be interested in
Your fixed expenses are $1,151.65/month. You saved 4 months' worth in an emergency fund, investing 25% in a savings account at a
dimulka [17.4K]

The correct answer is in fact $30.67

6 0
3 years ago
Read 2 more answers
What would be the angle between the two perpendicular lines.​
Anna007 [38]

Answer:

<em>90 degrees</em>

<em>90 degreesPerpendicular lines are lines that intersect at a <u>right (90 degrees) angle.</u></em>

5 0
2 years ago
Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she
Sergeeva-Olga [200]
A) .10 d + .25 q = 7.75
B) d + q = 40

Multiplying B) by -.10
B)  -.10d -.10q = -4.0
Then adding this to A)
A) .10 d + .25 q = 7.75
.15q = 3.75

Quarters = 25
Therefore, dimes = 15
***************************************************
Double-Check
A) .10 d + .25 q = 7.75
A) .10 * 15 d + .25 * 25 = 7.75
A) 1.50 + 6.25 = 7.75

Correct!!


6 0
3 years ago
PEMDA is a regular pentagon. which of the statements is correct ​
Gnom [1K]

there are no statements to see of they are correct

3 0
3 years ago
Read 2 more answers
In ∆MNP, m∠N = 90º, NH – altitude, m∠P = 21º, PM = 4 cm. Find MH.
Sveta_85 [38]

Answer:

0.51 cm

Step-by-step explanation:

In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°

By the sine definition,

\sin \angle P=\dfrac{\text{Opposite leg}}{\text{Hypotenuse}}=\dfrac{MN}{MP}\\ \\MN=MP\sin \angle P\\ \\MN=4\sin 21^{\circ}\approx 1.43\ cm

Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,

\cos \angle M=\dfrac{\text{Adjacent leg}}{\text{Hypotenuse}}=\dfrac{MH}{MN}\\ \\MH=MN\cos \angle M

In the right triangle, two acute angles are always complementary, so

m\angle M=90^{\circ}-m\angle P=90^{\circ}-21^{\circ}=69^{\circ}

Thus,

MH=1.43\cos 69^{\circ}\approx 0.51\ cm

7 0
2 years ago
Other questions:
  • Yoon buys a box of markers for $2.85, but he has a coupon for 20% off. How much does he save with the coupon?
    7·1 answer
  • Show that |3+10| =|3|+|10|
    13·1 answer
  • 9-5(4-2)<br> --------------<br> 3+5
    10·1 answer
  • What is the value of x ?
    15·1 answer
  • A forest covers 71,000 acres. A survey finds that ​0.3% of the forest is​ old-growth trees. How many acres of​ old-growth trees
    7·1 answer
  • PLEASE HELP!!!!!!!!! ​
    13·1 answer
  • PLEASE HELP ME PLEASE!
    15·1 answer
  • B<br> 15<br> C<br> А.<br> Find the length of "a"using<br> the Pythagorean Theorem.
    10·1 answer
  • Sarah took a 20? Test and got 17 problems correct what percent did she get
    5·2 answers
  • In the figure, POG is a diameter of the circle with centre O.<br>Find x° + y°.​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!