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2 years ago

[100 POINTS]!!!!!! Please help! serious answers only!!

Mathematics

2 answers:

Vlada [557]2 years ago

8 0

D. H = 90 + 2.50r

Y = 75 + 5.25s

lapo4ka [179]2 years ago

6 0

Option D.

H = 90 + 2.50r (Henry makes a flat rate of 90 and 2.50 per repair.)

Y = 75 + 5.25s (Yolanda makes a flat rate of 75 and 5.25 per sale.)

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2 years ago

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Find an equation of the circle that satisfies the given conditions.

hodyreva [135]

The equation of a circle:
$(x-h)^2+(y-k)^2=r^2$
(h,k) - the coordinates of the centre
r - the radius

The midpoint of the diameter is the centre of a circle.
The coordinates of the midpoint:
$(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$
(x₁,y₁), (x₂,y₂) - the coordinates of endpoints

$P(-1,1) \\
x_1=-1 \\ y_1=1 \\ \\ Q(5,9) \\ x_2=5 \\ y_2=9 \\ \\
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The centre of the circle is (2,5).

The radius is the distance between an endpoint of the diameter and the centre.
The formula for distance:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$(-1,1) \\ x_1=-1 \\ y_1=1 \\ \\ (2,5) \\ x_2=2 \\ y_2=5 \\ \\ d=\sqrt{(2-(-1))^2+(5-1)^2}=\sqrt{3^2+4^2}=\sqrt{9+16}=\sqrt{25}=5$

The radius is 5.

$(x-2)^2+(y-5)^2=5^2 \\
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2 years ago

There are 96 girls and 72 boys who want to participate in 6th grade intramurals.

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i) 24

ii) 4 girls, 3 boys

Step-by-step explanation:

The GCF is 24

96= 24*4

72= 24*3

I hope this helps!

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2 years ago

A. Dos números enteros positivos cuya diferencia sea 42

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Answer:

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During a bite challenge rattlers how to collect various colored ribbons each 1/2 mile they collect a red ribbon each 1/8 mile th

tino4ka555 [31]

1/2×4=4/8
1/8=1/8
1/4×2=2/8
so 4/8+2/8=6/8
and 6/8+1/8=7/8

so 7/8 ribbons will be collected

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3 years ago

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