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
lana66690 [7]
3 years ago
11

How to I solve this problem?

Mathematics
2 answers:
Arturiano [62]3 years ago
3 0

Answer:

x=3

Step-by-step explanation:

kotykmax [81]3 years ago
3 0

Answer:

x=8

Step-by-step explanation:

here is the formula slide

that my teacher gave to help me remember

You might be interested in
A poster is to have a total area of 125 cm2. There is a margin round the edges of 6 cm at the top and 4 cm at the sides and bott
jeka57 [31]

Answer:

The correct answer is 15 cm.

Step-by-step explanation:

Let the width of the required poster be a cm.

We need to have a 6 cm margin at the top and a 4 cm margin at the bottom. Thus total margin combining top and bottom is 10 cm.

Similarly total margin combining both the sides is (4+4=) 8 cm.

So the required printing area of the poster is given by {( a-10 ) × ( a - 8) } cm^{2}

This area is equal to 125 cm^{2} as per as the given problem.

∴ (a - 10) × (a - 8) = 125

⇒ a^{2} - 18 a +80 -125 =0

⇒ a^{2} - 18 a -45 = 0

⇒ (a-15) (a-3) = 0

By law of trichotomy the possible values of a are 15 and 3.

But a=3 is absurd as a > 4.

Thus the required answer is 15 cm.

7 0
2 years ago
Read 2 more answers
The coordinates of A and B are (3k, 8) and (k, -3) respectively. Given that the gradient of the line segment AB is 3, find the v
Vladimir [108]

Step-by-step explanation:

gradient = slope or several other words.

it describes how strongly a line (or tangent to a bent curve) is going up or down or ... if it is changing at all.

it is represented by the ratio

(y coordinate change / x coordinate change)

when going from one point on the line to another.

in our case, when going from A to B we have

x changes by -2k (from 3k to k).

y changes by -11 (from 8 to -3).

so, the gradient or slope is

-11/-2k = 3

11/2k = 3

11 = 3×2k = 6k

k = 11/6

A = (33/6, 8) = (11/2, 8)

B = (11/6, -3)

5 0
1 year ago
The marijority of the population in the United states _________.
Nadusha1986 [10]
It should be C english :)
6 0
2 years ago
Carla is wrapping a present in the box shown. How much wrapping paper does she need, not including overlap?
larisa [96]
2(area of s) + 2(area of f) + 2(area of ff) if s = side and f= opposite faces and ff = opposite faces.
2(4x3) + 2(3x10) + 2(4x10)=
24+60+80=
164 in squared
4 0
3 years ago
Read 2 more answers
Write an expression for the calculation subtract 10 divided into fifths from 20 diveded in half
vredina [299]
20/2-10/5. You divide 20 by 2 and subtract that from 10 divided by 5
5 0
3 years ago
Other questions:
  • A diagonal support beam is attached to the gate of a fence as shown. Which angles must be congruent in order for the top and bot
    12·1 answer
  • Draw the image of △ABC under the translation (x,y)→(x,y+3)
    8·1 answer
  • Following an experiment, Jamie estimates that his probability of making a three-pointer with a basketball is 0.8. If he shoots 1
    8·2 answers
  • I just need A,B,C I do t get it
    10·1 answer
  • What is F(x)=-12/25(x-25)^2+32 in standard form?
    6·1 answer
  • Find the quotient −40÷20.
    9·2 answers
  • -3(12 - m) = -1(m - 8)
    5·1 answer
  • NEED ANSWERS ASAP!!
    9·1 answer
  • Help me please chile
    13·2 answers
  • I need help on this​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!