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seropon [69]
2 years ago
7

I need answers to these MCAS practice questions ASAP!

Mathematics
1 answer:
Semmy [17]2 years ago
8 0
I’ve attached a photo with my work ....
Hope it helps!!

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Zachary visits a flower shop to purchase roses to be delivered to his mother for her birthday. The cost of the roses is modeled
Afina-wow [57]

Answer:

y = 2.5 + 4.75, every additional rose sold , x, increases the cost of the rose, y, by 2.50

Step-by-step explanation:

8 0
2 years ago
Plzzzzz help , really easy im just du mb
ra1l [238]

Answer:

Step-by-step explanation:

They are about 3 meters away from each other

and the correct area is 15.5-12 and the correct answer is 3.5 meters apart

3 0
3 years ago
Read 2 more answers
(x+7)^2+9=0<br><br> Find x with quadratics
Ne4ueva [31]

Answer:

x = -7 ±3i

Step-by-step explanation:

(x+7)^2+9=0

Subtract 9 from each side

(x+7)^2+9-9=0-9

(x+7)^2=-9

Take the square root of each side

sqrt((x+7)^2) = ±sqrt(-9)

We know sqrt(ab) = sqrt(a) sqrt(b)

x+7 = ±sqrt(-1) sqrt(9)

We know that sqrt(-1) is the imaginary number i

x+7 = ±i *3

x+7 =±3i

Subtract 7 from each side

x+7-7 = -7 ±3i

x = -7 ±3i

6 0
3 years ago
Read 2 more answers
1821.5/0.7 ... can someone please explain and answer this? Thank you SO much!!
S_A_V [24]
So you cant have a decimal in your divisor which means the problem sill become 18215/7 if that helps
8 0
2 years ago
Given: Triangle ABC : triangle ADB. AB =24, AD =16 <br> Find: AC
RoseWind [281]

Answer:

<h2>AC = 36.01</h2>

Step-by-step explanation:

Given ΔABC and ΔADB, since both triangles are right angled triangles then the following are true.

From ΔADB, AB² = AD²+BD²

Given AB = 24 and AD = 16

BD² = AB² - AD²

BD² = 24²-16²

BD² = 576-256

BD² = 320

BD = \sqrt{320}

BD = 17.9

from ΔABC, AC² = AB²+BC²

SInce AC = AD+DC and BC² = BD² + DC² (from ΔBDC )we will have;

(AD+DC)² = AB²+ (BD² + DC²)

Given AD = 16, AB = 24 and BD = 17.9, on substituting

(16+DC)² = 24²+17.9²+ DC²

256+32DC+DC² =  24²+17.9²+ DC²

256+32DC = 24²+17.9²

32DC = 24²+17.9² - 256

32DC = 640.41

DC = \frac{640.41}{32}

DC = 20.01

Remember that AC = AD+DC

AC = 16+20.01

AC = 36.01

6 0
2 years ago
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