Mathematics College

At which approximate x-value are these two equations equal
y = √1 - x^2
y = 2x - 1

Answers

Answer 1

9514 1404 393

Answer:

  x = 0.8

Step-by-step explanation:

If you mean y = √(1 -x²), then the curves cross at x=0.8.

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If you equate the y-expressions, then square both sides, you have ...

  √(1-x²) = 2x-1

  1 - x² = (2x -1)² = 4x² -4x +1

  0 = 5x² -4x . . . . . subtract the left-side expression

  x(5x -4) = 0   ⇒   x = 0, or x = 4/5

The x=0 solution is extraneous.

The two equations are equal at x = 4/5.

At Which Approximate X-value Are These Two Equations Equal Y = 1 - X^2 Y = 2x - 1

Related Questions

Find the solution to the system of equations y=1/2x +1, y= -x-2

Answers

(-2,0)
-x-2=1/2x-2
-1.5x-2=1
-1.5x=3
X=-2
(-2,0)

Answer:

answer is (1,0)

Step-by-step explanation:

Sara drove 96 miles on 3.2 gallons of gas. How many miles can Sara drive on 12.5 gallons of gas

Answers

Answer:

375 miles

Step-by-step explanation:

Create a proportion where x is the number of miles she can drive on 12.5 gallons of gas:

[tex]\frac{96}{3.2}[/tex] = [tex]\frac{x}{12.5}[/tex]

Cross multiply and solve for x:

3.2x = 1200

x = 375

So, with 12.5 gallons of gas, Sara can drive 375 miles

375 miles 96 on 3.2 gallons of gas dived

The surface area is what?? These are the numbers 14 cm, 14cm, and 10cm

Pls answer fast​

Answers

Since the shape is a square pyramid, the base would be 14 by 14. The area of one triangle would be 10 times 14 times 1/2 = 70. 70 times 4 = 280. 14 times 14 = 196

196 + 280 = 476

Final answer = 476

Need help!!!!!!!!!!!! Struggling

Answers

A = 28.26 sq yds

Step-by-step explanation:

diameter (D) = 6 yds

radius (r) = D/2 = 3 yds

A = πr^2

= (3.14)(3 yds)^2

= 28.26 sq. yds

Simplify (5m - 4)2 using the square of a binomial formula.

A) 5m2 - 20m - 4
B) 25m2 – 40m + 16
C) 25m2 + 40m + 16
D) 5m2 – 40m + 4

Answers

Answer:

[tex]25m^{2} -40m+16[/tex]

Step-by-step explanation:

Rewrite (5m−4)^2 as (5m−4)(5m−4).

Expand (5m−4)(5m−4) using the FOIL Method.

[tex]25m^{2} -40m+16[/tex]

can someone help me find x

Answers

Answer:

x = 5

Step-by-step explanation:

Since this shape is a quadrilateral, the sum of the interior angles is 360.

Equation:

81 + 20x - 16 + 15x + 30 + 16x + 10 = 360

51x + 105 = 360

51x = 360 - 105

51x = 255

x = 5

Avery invested $200 in an account paying an interest rate of 6 7/8%
compounded continuously. Jeremiah invested $200 in an account paying an
interest rate of 6 5/8% compounded quarterly. To the nearest hundredth of a
year, how much longer would it take for Jeremiah's money to triple than for
Avery's money to triple?

Answers

Answer:

15

Step-by-step explanation:

The table below shows the possible outcomes of rolling a six-sided number cube and flipping a coin.

what is the probability of getting a number less than 3 and tails

A. 1/12
B. 1/6
C.1/4
D. 1/3​

Answers

What’s the answer plsssssssssssssss

Answer:

c is the correct answer but i am not sure

Which of the following is equivalent to 24/80

Answers

Answer:

0.3

Step-by-step explanation:

Just divide : 24/80 = 0.3

There were 3 chihuahuas at the dog park last Saturday, along with 9 other dogs. Considering this data, how many of the next 20 dogs to arrive at the park next Saturday should you expect to be chihuahuas?

Answers

Answer:

5

Step-by-step explanation:

Since there are 3 chihuahuas out of 12 dogs IN TOTAL (which includes the 9 other dogs), the ratio is 1:4, or 1/4.

Assuming this ratio is consistent, (1/4)*20 is 5.

In conclusion, you can expect there to be 5 chihuahuas out of the next 20 dogs to arrive at the park.

Hope it helped, and have a beautiful day/night! <3

Please help me I would appreciate it a lot

Answers

Answer:

Juan can consume 2.22 calories per day

Step-by-step explanation:

[tex]68.820 \div 31 \: day \: month \: \\ \\ = 2.22[/tex]

what is the permiter of the figuere

Answers

Answer:

68.7

Step-by-step explanation:

2+3
For what value of a does
9
(3)"
?
-
73
3
1

Answers

Answer:

3

Step-by-step explanation:

3 × 3 = 9

( 3 + 3 + 3 = 9 )

______________________________________

How to find the area of a triangle using trig

Answers

Hope this helps you out in your journey for the test

PLEASE HELP IM IN MY FINALS I WILL GIVE BRANLIEST Find the slope of the line through each pair of points. (-8, 15),(-1,9)​

Answers

your slope (m) is (-6,7)

follow the picture this is confusing

Answers

Step-by-step explanation:

This is a familiar conversion problem:

[tex]3.3 \times {10}^{2} lightyears \times \frac{5.9 \times {10}^{12} miles}{1 \: lightyear} [/tex]

[tex] = 1.95 \times {10}^{15} \: miles[/tex]

Answer:

see below

Step-by-step explanation:

3.3 × 10^2  light years

one light year is 5.9 × 10^12 miles

you need to multiple these two values

3.3 × 10^2  light years  ×  5.9 × 10^12 miles/light year =

=     (3.3 × 5.9) × 10^2 × 10^12

=     19.47 × 10^(2 + 12)

=     1.947 × 10^1 × 10^14

=     1.947 × 10^15 miles

What is the volume of the cube shown below?

Answers

Hopes this helps:

Answer: D. 216a^3

Have a great day.

A combined total of $53,000 is invested in to two bonds that pay 2% and 8.5% simple interest. The annual interest is %3,335. How much is invested in each bond?

Answers

$26,500 is invested into each bond.

Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
ETIH
12
5
15
a.
12
4
5
15
5
b.
4
5
4
15
12
15
C.
4
5
1
12
10
3
d.
15
5
5
m
4
--
12
4

Answers

Answer: the answer is C

Step-by-step explanation: because

Help with 19 please

Answers

Answer:

Plot a point at (0,5) the plot a point at (1,8) (2,11) etc...

Step-by-step explanation:

Solve these 2 parts please. 1 by 1 solve these two.

Answers

1) A square has 4 equal sides
So you should divide the whole perimeter by 4
28/4= 7 cm
Each side has a length of 7 cm
2) the area of a square is:
Side x side
= 7 x7
= 49

What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches,
a width of 8 inches, and a length of 17 inches?

Answers

Answer:

2584

Step-by-step explanation:

height of 19 inches,

a width of 8 inches, and a length of 17 inches

17 times 19 times 8

192=6000(.02(8/5-4Y)+.08y)
solve for y

Answers

Given:

The equation is:

[tex]192=6000\left(0.02\left(\dfrac{8}{5}-4y\right)+0.08y\right)[/tex]

To find:

The value of y.

Solution:

We have,

[tex]192=6000\left(0.02\left(\dfrac{8}{5}-4y\right)+0.08y\right)[/tex]

On simplification, we get

[tex]192=6000\left(0.02\times 1.6-0.02\times 4y+0.08y\right)[/tex]

[tex]192=6000\left(0.032-0.08y+0.08y\right)[/tex]

[tex]192=6000\left(0.032\right)[/tex]

[tex]192=192[/tex]

Since LHS=RHS and the equation is free from the variable y, therefore the given equation is true for all real values of y.

Hence, all real values of y are solutions.

Which equation has a graph that lies entirely above the x-axis?

Answers

This awnser is 309 and has 11.22 as the fraction

Answer: c

Step-by-step explanation:

y=(x-7)^2+7

speeeeeeeeeeeddddddddddddddddd (might give brainlest

Answers

Answer:

6

Step-by-step explanation:

6 times 6 is 36 and the formula for area is

lxw(Length times width)

Are the events independent??

Best answer gets brainliest!!!

Answers

Answer:

C

Step-by-step explanation:

two events are independent if you can mulitply them to find their intersection

.5*.36= .18 which is obviously not .2

therefore they're not independent because they're not eqaul

Two bottles of honey are compared,one costs R89,99 for 530g and the other. R59,99 for 375g.Which one is cheaper

Answers

The second one is cheaper because it is worthy more

la
You spend some time in the kitchen making sure the recipe is just right for
the cooking show. You spend 2 3/4 hours baking and half of an hour
cleaning up the kitchen. How much time were you in the kitchen?

Answers

3 and 1/4 is the answer!!

What is the solution 5x-15=-25

Answers

Answer:

x= -2

Step-by-step explanation:

MARK AS BRAINLIEST!!

Answer: -2

Step-by-step explanation: -2 times 5 is -10. -10-15=-25

Help please I don’t know what to do and I need to pass this class to be able to graduate

Answers

9514 1404 393

Answer:

3 line segmentstriangle

Step-by-step explanation:

What to do:

read the questiondo what it says

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When you plot 3 points, A, B, C, you can join them 3 ways: AB, AC, BC. The three line segments make a triangle

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