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e-lub [12.9K]
3 years ago
8

The ordered pair (−3,−6) is a solution for the first equation, and it is a solution for the second equation. Therefore, (−3,−6)​

is a solution to the system of equations. ​−4x+y=65x−y=21​ true or false? HELP PLEASE I AM IN THE MIDDLE OF A QUIZ HELP!!!! ASAP
Mathematics
2 answers:
Alisiya [41]3 years ago
7 0
False. If x=-3 and y=-6 and you substitute them into the equation they do not add up

Olenka [21]3 years ago
3 0

Answer: False

I took the test. Hope you do well!!

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Plz plz plz plz help me​
Mrac [35]

Answer:

Solution given:

perpendicular [P]=15m

base[B]=8m

hypotenuse [H]=17m

rate :4 plants per square metre

no of plants=?

we have

Area of triangular garden: ½(P*B)=½(15*8)=60m²

Now

Total no of plants =rate ×Area =4×60=240

Michael needs <u>240</u> plants in the garden

3 0
3 years ago
Find the area if each figure. round the nearest hundredth where neccessary.​
faltersainse [42]

Answer:

351.48cm²

Step-by-step explanation:

Heron’s Formula

Find half the perimeter (30+30+26)/2=43

It’s the square root of each side subtracted from 43, multiplied together, times 43.

√(43-30)*(43-30)*(43-26)*43=√13*13*17*43=√=123539=351.481cm²

6 0
3 years ago
H/3+h/6=1 how many hours will it take them to mow their lawn a.6 b.3 c.2 d.1
Furkat [3]

Answer:

c 2

Step-by-step explanation:

h/3 + h/6 =1

Multiply both sides by 6 to eliminate the fractions

6(h/3+h/6) = 1*6

2h +h =6

Combine like terms

3h = 6

Divide by 3

3h/3 = 6/3

h =2

2 hours

8 0
3 years ago
If 15 times a number to equal 647
Ainat [17]
I'm assuming, from what you've given me that the question is asking to do this.

15n=647
647 divided by 15 equals 43.13...repeated
Let me know if this is what you are looking for.

3 0
3 years ago
A piece of carpet is in the shape of an isosceles trapezoid with a height of 30 inches and bases 40 and 60 inches. What is the a
yaroslaw [1]
30x40x60=72,000. with area you do LxWxH
3 0
3 years ago
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