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denis-greek [22]
3 years ago
8

Solve: -7x+2y=-3 2x+4y=42

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

i think its three, nine

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Pleaseeeee helpppppp​
natima [27]

Answer:

BCE

Step-by-step explanation:

I hoped this helped and mark me as brainly pls

3 0
3 years ago
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Which of the following is the best answer to 4/5 minus 2/3
ella [17]

Answer:

2/15

Step-by-step explanation:

4/5-2/3 = 12/15-10/15 = 2/15

So 2/15 is your answer

6 0
3 years ago
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SOMEONE PLEASE HELP ME ASAP PLEASE!!!!​
ehidna [41]

Answer:

Therefore,

a_{21}=2

Step-by-step explanation:

Given:

A=\left[\begin{array}{ccc}3&6&9\\2&4&8\\\end{array}\right]

To Find:

a₂₁ = ?

Solution:

Let,

A=\left[\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\\\end{array}\right]

We require  ' a₂₁ ' i.e Second Row First Column Element

So on Comparing we get

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Therefore,

a_{21}=2

5 0
3 years ago
 Ill Mark Brainliest if you answer correctly. The figure below shows a shaded circular region inside a larger circle:
pogonyaev

First we have to find the areas of both circle using the formula

Area = \pi r^2

For larger circle,

Area=  \pi(5)^2 = 25 \pi

For smaller circle,

Area = \pi (4)^2 = 16 \pi

Required probability

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8 0
3 years ago
I WILL GIVE BRAINLIEST Given: BFCE, AB perpendicular to BE, DE perpendicular to BE,
mars1129 [50]

Answer:

Step-by-step explanation:

From the given picture,

∠ABE = ∠DEF = 90° [Since, AB and DE are perpendicular to DE]

m∠ECA = m∠BFD [Given]

m∠ECA + m∠ACB = 180° [Liner pair of angles]

m∠BFD + m∠DFE = 180° [Liner pair of angles]

m∠ACB + m∠ECA = m∠BFD + m∠DFE [Transitive property]

m∠ACB = m∠DEF [Since, m∠ECA = m∠BFD]

Therefore, ΔABC ≅ ΔDEF [By AA property of similarity]

3 0
2 years ago
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