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dolphi86 [110]
3 years ago
15

Help me please this is 7th grade math

Mathematics
1 answer:
insens350 [35]3 years ago
7 0

Answer:

Step-by-step explanation:

what are we trying to find?

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Ava has a credit card that gets her a 5% discount on every purchase and free shipping when used online. The annual percentage ra
8_murik_8 [283]

Answer:

1:$10

2:$13.06

Step-by-step explanation:

5 0
3 years ago
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tyler has a rectangular garden measuring 12m by 20 m that he wants to split diagonally from corner to corner using a fence. how
adelina 88 [10]

Answer:

23.3

(or 4\sqrt{34} (let me know if you wanted this one and is you want it explained) lol)

Step-by-step explanation:

To find the length of the fence, use the Pythagorean theorem because, if you cut a rectangle diagonally, you will create two right triangles, and this formula only works with right triangles:

a^{2} +b^{2} =c^{2}

Insert values:

12^{2} +20^{2} =c^{2}

Solve for c:

Evaluate exponents

144+400=c^2

Simplify addition

544=c^2

Find the square root of both

\sqrt{544} =\sqrt{c^2}\\\\\sqrt{544} =c\\\\23.324=c\\\\c=23.3

The fence needs to be approximately 23.3 m.

5 0
3 years ago
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Write parametric equations of the line with the equation 4x-6y=-12
Vitek1552 [10]

Answer:

no the answer is 2

Step-by-step explanation:

6 0
3 years ago
A map is drawn using a scale of 1cm/80 mi
yulyashka [42]

Answer:

280/80 = 28/8 = 7/2 = 3.5 cm

Step-by-step explanation:

the ratio is 1cm/80mi = a cm/280mi

so you get 280cm * mi = 80mi*a cm

so a = 280/80 = 3.5  

8 0
3 years ago
What is the equation of the line with an x-intercept of -1 and a y-intercept of 2? y = 2x - 2 y = - 2x 2 y = 2x 2
guajiro [1.7K]
X intercept = -1,  y = 0           (-1, 0)

<span>y intercept = 2,  x = 0           (0, 2)
</span>
slope between (-1, 0) and (0, 2):

slope = (2 -0)/(0 - -1) =  2/1 = 2,           m = 2

Using point   (-1, 0)   x₁ = -1, y₁ = 0

y - y₁ = m(x - x₁)

y - 0 = 2*(x - -1)

y = 2(x + 1)

y = 2x + 2
6 0
4 years ago
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