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Leno4ka [110]
3 years ago
14

Question is In the image no need for step by step just the answer

Mathematics
1 answer:
Delicious77 [7]3 years ago
7 0

Answer:

A

Step-by-step explanation:

-4x+5y=10. -4x+5y=10. -4x+5y=10

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In scoole i need to know whats 14.6 divided by 2
ICE Princess25 [194]
The answer is 7.3. Hope that helps.

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2 years ago
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How would eight billion, nine hundred seventy-seven thousand, thirteen be written in standard form?
zheka24 [161]

Answer:

8 billion > 8,000,000,000

977 thousand > 977,000

13> 13

8,000,977,013

Step-by-step explanation:

3 0
2 years ago
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Find the area of a quadrilateral ABCD in which AB = 3 cm, BC = 4 cm, CD = 4 cm, DA = 5 cm and AC = 5 cm.
melamori03 [73]

Answer:

6+2\sqrt{21}\:\mathrm{cm^2}\approx 15.17\:\mathrm{cm^2}

Step-by-step explanation:

The quadrilateral ABCD consists of two triangles. By adding the area of the two triangles, we get the area of the entire quadrilateral.

Vertices A, B, and C form a right triangle with legs AB=3, BC=4, and AC=5. The two legs, 3 and 4, represent the triangle's height and base, respectively.

The area of a triangle with base b and height h is given by A=\frac{1}{2}bh. Therefore, the area of this right triangle is:

A=\frac{1}{2}\cdot 3\cdot 4=\frac{1}{2}\cdot 12=6\:\mathrm{cm^2}

The other triangle is a bit trickier. Triangle \triangle ADC is an isosceles triangles with sides 5, 5, and 4. To find its area, we can use Heron's Formula, given by:

A=\sqrt{s(s-a)(s-b)(s-c)}, where a, b, and c are three sides of the triangle and s is the semi-perimeter (s=\frac{a+b+c}{2}).

The semi-perimeter, s, is:

s=\frac{5+5+4}{2}=\frac{14}{2}=7

Therefore, the area of the isosceles triangle is:

A=\sqrt{7(7-5)(7-5)(7-4)},\\A=\sqrt{7\cdot 2\cdot 2\cdot 3},\\A=\sqrt{84}, \\A=2\sqrt{21}\:\mathrm{cm^2}

Thus, the area of the quadrilateral is:

6\:\mathrm{cm^2}+2\sqrt{21}\:\mathrm{cm^2}=\boxed{6+2\sqrt{21}\:\mathrm{cm^2}}

4 0
3 years ago
Which equation is parallel to the graph of y = 2x-5 and goes through the point (3,9)?
lawyer [7]

Answer:

y = 2x + 3

Step-by-step explanation:

the slope is 2 so the line parallel will have a slope of 2

y-9 = 2(x-3)

y-9= 2x - 6

y = 2x +3

6 0
2 years ago
ASP plz Look at the function y=2x=1 Dom f=(-2,-1,0,1,2)cR. Represent in a graph and find the Im f. Plz graphing it
astra-53 [7]

Answer:

Step-by-step explanation:

What is "the lm f."?

do you mean y = 2x+1?

4 0
2 years ago
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