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
sleet_krkn [62]
3 years ago
9

Expand and simplify: (2x + 5y) (x − 3y)

Mathematics
2 answers:
nikdorinn [45]3 years ago
7 0
2x^2 - 6xy + 5xy - 15y^2.
Which simplifies to:
2x^2 - xy - 15y^2.

ivanzaharov [21]3 years ago
5 0
The answer is 2y times 3x
You might be interested in
chuck wants to increase his savings account by 45%. if chuck has230 in his account, how much will he have after increasing his s
katovenus [111]

Answer:

$333.5

Step-by-step explanation:

First we have to find 45% of 230 and then add that value to 230

(we can also find 145% of 230, which is essentially the same thing)

so 45% of 230 is:

230*(45/100)= $103.5

230+103.5= $333.5

4 0
3 years ago
you buy a box of chocolates containing 2772 pieces if you give 900 of the chocolate to your parents and share the rest equally w
neonofarm [45]

Answer:

You will have 624 chocolates for yourself.

Step-by-step explanation:

2772 - 900 = 1,872

1,872 / 3 = 624

You and your siblings will have 624 pieces each after all is said and done.

7 0
3 years ago
Harold spent 3/4 hour milking cows. He milked 3 groups of cows. If he spent an equal amount of time on each group of cows, what
Aneli [31]
(3/4)/3

3/12

1/4

So he spent a 1/4 hour milking each group.
5 0
3 years ago
The law of cosines is used to find the measure of Z.
Shtirlitz [24]

Answer:

C. Z=51^{\circ}

Step-by-step explanation:

We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.

Law of cosines: c^2=a^2+b^2-2ab\cdot \text{cos}(C), where, a, b and c are sides opposite to angles A, B and C respectively.

Upon substituting our given values in law of cosines, we will get:

16^2=19^2+18^2-2(19)(18)\cdot \text{cos}(Z)

256=361+324-684\cdot \text{cos}(Z)

256=685-684\cdot \text{cos}(Z)

256-685=685-685-684\cdot \text{cos}(Z)

-429=-684\cdot \text{cos}(Z)

\frac{-429}{-684}=\frac{-684\cdot \text{cos}(Z)}{-684}

0.627192982456=\text{cos}(Z)

\text{cos}(Z)=0.627192982456

Now, we will use inverse cosine or arc-cos to solve for angle Z as:

Z=\text{cos}^{-1}(0.627192982456)

Z=51.1566718^{\circ}

Z\approx 51^{\circ}

Therefore, the measure of angle Z is approximately 51 degrees.

6 0
3 years ago
Read 2 more answers
Which equation is a point slope form equation for line AB ?
guapka [62]
I believe the answer is D
y+2=-2(x-5)
-2*-5=10
y+2=-2x+10
-2 -2
y=-2x+8
7 0
3 years ago
Read 2 more answers
Other questions:
  • Ten times the sums of half a number and 6 is 8
    7·1 answer
  • Your race car weighs 1.5 tons. To make the car faster, you replaced the steel body with carbon-fiber and reduced the weight by 3
    12·2 answers
  • Which two scientists worked together to develop a tree-dimensional model of dna
    14·2 answers
  • What number has 2 more tens then 11
    7·1 answer
  • What are the endpoint coordinates for the midsegment of △PQR that is parallel to PQ¯¯¯¯¯? Enter your answer, as a decimal or who
    10·1 answer
  • A solid plastic ball is a sphere with a radius of 8 inches. How much plastic does it take to make one ball
    7·1 answer
  • The Digital Pet Rock Company was recently successfully funded via Kickstarter and must now appoint a president, chief executive
    6·1 answer
  • Peter worked 2 part-time jobs and earned $189.00 for working a total of 24 hours at both jobs. He is paid $6.00 per hour at Job
    14·1 answer
  • 2(x+16)= 6x please help me :)
    14·2 answers
  • 10tu^3 + 4v - 3v<br><br> must combine like terms solve or rewrite expression
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!