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3 years ago

Select all the systems of equations that have exactly one solution.

Mathematics

1 answer:

Vlad [161]3 years ago

4 0

Step-by-step explanation:

y=3x+1, y= -3x+7

y=1,X=1

X+y=10,2x+2y=20

X=5, y=5

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Plz help 5 qeustions

patriot [66]

What 5 questions ? i would gladly help but i dont know what you want me to answer

8 0

3 years ago

if each bowl of ice crem creats a profit of $0.35 what could be the profit made from the 3/4 of a gallon of ice cream

Tanya [424]

each bowl of ice crem creats a profit of $0.35

For the profit made with 3/4 bowl of icecream : multiply 3/4 by $0.35

$\begin{gathered} \text{ Profit for the }\frac{3}{4}\text{ bowl of icecream=}\frac{3}{4}\times0.35 \\ \text{ Profit for the }\frac{3}{4}\text{ bowl of icecream=}0.2625\text{ } \end{gathered}$

Profit made by 3/4 bowl of icecream is $0.2625

5 0

1 year ago

Find sec theta if theta is in quadrant 4 and sin theta= -1/5

lara31 [8.8K]

Answer:

$\frac{5}{2\sqrt{6} }$

Step-by-step explanation:

Since Θ is in fourth quadrant then cosΘ > 0, as is secΘ

Given

sinΘ = - $\frac{1}{5}$ , then

cosΘ = $\sqrt{1-(-1/5)^2}$

= $\sqrt{1-\frac{1}{25} }$ = $\sqrt{\frac{24}{25} }$ = $\frac{2\sqrt{6} }{5}$

Hence

secΘ = $\frac{1}{\frac{2\sqrt{6} }{5} }$ = $\frac{5}{2\sqrt{6} }$

5 0

3 years ago

Read 2 more answers

Shenelle has 100100100 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of th

cluponka [151]

Area as a function of width, w is:
a(w)=(w-25)^2+625
for maximum area, the width will be:
a'(w)=2(w-25)+0=0
solving for w we egt
2w-50=0
2w=50
w=25 m
given that the perimeter is 100, the length will be:
100=2(L+W)
solving for L we get:
L=50-W
but W=25m
hence
L=50-25=25 m
thus the maximum area will be:
A=L*W=25*25=625m^2

8 0

3 years ago

Read 2 more answers

Find the least common multiple of: 12x^3y^2 and 15x^2y^5

allochka39001 [22]

Answer: $60x^3y^5$