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
Akimi4 [234]
3 years ago
9

Can someone help me with number 7 the circled one?

Mathematics
1 answer:
Ivenika [448]3 years ago
5 0
Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----

x^2+x = 2x+79
x^2-x-79 = 0
------
This quadratic does not have an integer solution.</span>
You might be interested in
Hello everyone, i am very confused by this question:
Lesechka [4]

Answer:

Read the explanation down

Step-by-step explanation:

This is a linear equation, because the equation does not have any exponents. Graph it by putting the equation into either slope-intercept form y=mx+b or point-slope form y−y1=m(x−x1).

Isolate y by first adding 6x to each side:

9y=6x−18

Divide each side by 9:

y=23x−2

Now graph the line y=23x−2 by first plotting the y intercept at (0,−2), then connecting points with a slope of 23.

graph{2/3x-2 [-10, 10, -5, 5]}

8 0
3 years ago
Please help me with this!! I will mark brainlist!!
kondor19780726 [428]

Answer:

54°

Step-by-step explanation:

Your triangle is isosceles. You have been given the third angle, and you have been asked to find the measure of one of the two equal angles. We know that the internal angles of a triangle sum to 180, so 72+x+x=180 \rightarrow 2x=108 \rightarrow x = 54

3 0
3 years ago
A right triangle has two equal sides. The hypotenuse is 10 cm. What is the perimeter of the triangle?
Scorpion4ik [409]

Answer:

Isosceles Right Triangle Example

Step-by-step explanation:

Find the area and perimeter of an isosceles right triangle whose hypotenuse side is 10 cm. Therefore, the length of the congruent legs is 5√2 cm. Therefore, the perimeter of an isosceles right triangle is 24.14 cm.

Hope this answer helps ^^

4 0
3 years ago
1. What's 7/8 as a decimal?
denpristay [2]

Answer:

0.875

Step-by-step explanation:

7/8 as a decimal is 0.875. Another was of thinking of this is the number '7' is 87.5 percent of the number '8.

5 0
3 years ago
One urn contains one blue ball (labeled b1) and three red balls (labeled r1, r2, and r3). a second urn contains two red balls (r
Flura [38]

Answer:

12 possibilities

Step-by-step explanation:

In the first urn, we have 4 balls, and all of them are different, as they have different labels, so the group of two red balls r1 and r2 is different from the group of red balls r2 and r3.

The same thing occurs in the second urn, as all balls have different labels.

The problem is a combination problem (the group r1 and r2 is the same group r2 and r1).

For the first urn, we have a combination of 4 choose 2:

C(4,2) = 4!/2!*2! = 4*3*2/2*2 = 2*3 = 6 possibilities

For the second urn, we also have a combination of 4 choose 2, so 6 possibilities.

In total we have 6 + 6 = 12 possibilities.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y
    13·2 answers
  • How to understand the word problem well in the math?​
    10·1 answer
  • Divide. 2/7÷1/3 = pls help free points
    6·2 answers
  • What is 1/2 divided by 3 i got my Awncer but it says I got it wrong:(​
    7·2 answers
  • I don’t understand what I’m supposed to do. Someone pls help :’/
    15·1 answer
  • ( 2 5/8 + 1/6) + 1 3/8
    7·2 answers
  • Ayo plz help me with math i trying to get good grades in 2 weeks :(
    6·2 answers
  • What is the solution of each equation<br> 42=7f
    6·2 answers
  • GIVING BRAINLIEST ONLY IF CORRECT
    6·2 answers
  • Which statement is true?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!