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klemol [59]
3 years ago
8

A rectangular flower bed is five feet longer than it is wide. its area is eighty-four square feet.

Mathematics
1 answer:
777dan777 [17]3 years ago
3 0
Lets say w is the width of the flower bed. We can make an equation to find the area.
The length of the of the flower bed is (w+5) and the width is w.
To find the area we need to multiply the length(w+5) by the width(w) and set it equal to 84,
(w+5)(w)=84
w^2 +5w=84
Using the quadratic equation you get the solutions of 7 and -12. Since 7 is positive it is our width. Our length is 7+5 or 12.
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HELP ASAP! Will name brainliest!
gogolik [260]

Answer:

The answer to your question is given in the attached photo.

Step-by-step explanation:

To determine the answer to the question,

First, we shall determine the value 3A.

This is obtained by multiplying matrix A by 3 as shown in the attached photo.

Next, we shall carry out the operation 3A – B as shown in the attached photo.

5 0
3 years ago
Below, the two-way table is given for a
statuscvo [17]

Answer:

40%

Step-by-step explanation:

Probability that student is a male Given that it's a senior ::

Recall :

P(A | B) = (AnB) / B

Hence, we have ;

P(male | Senior) = number of (Male n Senior) / total Senoirs

From the table :

Total seniors = 2 + 3 = 5

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6 0
3 years ago
Use elimination to solve this system of equations x-y=11 2x+y=19
user100 [1]

Answer:

x=10, y=-1

Step-by-step explanation:

The coefficients of y are opposites, so the y-variable can be eliminated by adding the two equations.

... (x -y) +(2x +y) = (11) +(19)

... 3x = 30 . . . . . simplify

... x = 10 . . . . . . .divide by the coefficient of x

Use either equation to find y. We can use the first one, for example:

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The solution is (x, y) = (10, -1).

5 0
4 years ago
Identify the vertex, focus, and directrix of the parabola with the equation x^2-6x-8y+49=0
NeTakaya
Get it in form 4P(y-k)=(x-h)^2
add 8y to both sides
x^2-6x+49=8y
complete the square
-6/3=-3, (-3)^2=9
(x^2-6x+9)+40=8y
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minus 40 both sides
(x-3)^2=8y-40
undistribute 8 on right side
(x-3)^2=(y-5)8
4P(y-k)=(x-h)^2
4(2)(y-5)=(x-3)^2

(h,k) is center
p is distance from vertex to directix and also from vertex to focus
p=2
vertex=(3,5)
in that form, the prabola opens up so
directix is 2 below vertex
focus is 2 above vertex
up and down is y so
5-2=3
5+2=7

directix is y=3
focus=(3,7)
vertex=(3,5)
5 0
3 years ago
Read 2 more answers
The sixth graders in one school are 155. 3 of them are girls. How many are the boys? 5
umka21 [38]

Answer:

31 i think

155.3 divided by 5 is equal to 31

6 0
3 years ago
Read 2 more answers
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