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3 years ago

-11x + 7y = 5 and 5x – 2y = – 7 PLEASE HURRY

Mathematics

1 answer:

artcher [175]3 years ago

7 0

The answer will be x=-3 y=-4

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Classify each number as an integer or a not integer

galina1969 [7]

Answer:

can't really do that.

Step-by-step explanation:

whats the numbers lol

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2 years ago

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Find the radius and diameter of circle A, if the endpoints of the radius are (-2, -1) and (6,4).

AleksandrR [38]

Step-by-step explanation:

$length \: between \: ( - 2, - 1) \: and \: (6,4) \\ = \sqrt{(x _{1} - x _{2} )² + (y _{1} - y _{2})² } \\ = \sqrt{( - 2 - 6)²+ ( - 1 - 4)²} \\ = \sqrt{64 + 25} \\ = \sqrt{100} \\ = 10 \: units \\ radius = 10 \: units \\ diameter = 2 \times radius \\ d = 2 \times 10 \\ d = 20 \: units$

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2 years ago

HOW TO DO THIS QUESTION

sdas [7]

Answer:

A ≈ 40.3 cm²

Step-by-step explanation:

The area of right Δ ACD is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

Here A = 50.5, b = CD and h = AC , then

$\frac{1}{2}$ × 14 × AC = 50.5

7 AC = 50.5 ( divide both sides by 7 )

AC ≈ 7.214

The area of Δ ABC is calculated as

A = $\frac{1}{2}$ × BC × AC × sin36°

= 0.5 × 19 × 7.214 × sin36°

≈ 40.3 cm² ( to 3 sf )

3 0

2 years ago

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Sports drinks- $1.75 pizza- $2.25

sineoko [7]

Answer:

7 drinks

Step-by-step explanation:

7x1.75=12.25

4 x 2.25= 9

added - 21.25

3 0

2 years ago

Sneezie's Tissues currently packages

QveST [7]

Answer:

3 times

Step-by-step explanation:

Volume of the pyramid:

V = lwh/3

Volume of the prism:

V = lwh

Since all dimensions remain as is, the volume of the prism is:

lwh / (lwh/3) = 3 times greater

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2 years ago