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3 years ago

12

A rectangle has a perimeter of 48 ft. The length and width are scaled by a factor 1.5. What is the perimeter of the resulting re

ctangle? Enter your answer in the box. ft

1 answer:

Tanzania [10]3 years ago

4 0

Answer:

72

Step-by-step explanation:

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100 points consider the function below -2|x-3|+1 = -2sqrtx-1

Alenkinab [10]

Answer:

D. x = 1.7 or x = 5.7

Step-by-step explanation:

The left side of the equation is graphed in blue. The right side of the equation is graphed in red.

The solution of the equation is the x (and y) that make both equations true.

On the graph these solutions are the points where the two graphs intersect.

Those two points have x values that are positive (and y's that are negative) Only answer D. has x-values that correspond to the x-values of the points of intersection.

3 0

2 years ago

Read 2 more answers

astraxan [27]

Answer:

No real roots

Step-by-step explanation:

The given equations are:

$3x-1+2y=0$

$3x^2-y^2+4=0$

We make y the subject in the first equation to get

$y=\frac{1-3x}{2}$

We substitute into the second expression to get:

$3x^2-(\frac{1-3x}{2})^2+4=0$

We expand to get:

$3x^2-\frac{(1-6x+9x^2)}{4}+4=0$

Multiply through by 4 to get:

$12x^2-1+6x-9x^2+16=0$

$3x^2+6x+15=0$

The discriminant is given by $D=b^2-4ac$

$D=3^2-4*12*15$

$D=-711$

Since the discriminant is less than zero, the two curves never intersects.

Therefore the system has no real roots

6 0

4 years ago

15. • Solve the simultaneous equations

tamaranim1 [39]

Answer:
B. 1 and -2
Explanation:
First, add up the equations:
x-x+3y+y=4
4y=4
y=1
Now, plug y into any of the original equations above and solve for x:
-x+1=3
-x=2
x=-2
Therefore, the answer is B. 1 and -2

5 0

4 years ago

is recommended that a ramp have least feet of horizontal distance for every 1 foot of horizontal rise along an incline. The ramp

lesya [120]

Answer: no

Step-by-step explanation:

8 0

3 years ago

What is 28% of 170<br> A.46.8<br> B.44.8<br> C.4.76<br> D.47.6

Rufina [12.5K]

The answer is D. Final answer.

8 0

3 years ago