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pantera1 [17]
3 years ago
14

I need help, I don’t understand what I’m supposed to do

Mathematics
1 answer:
Schach [20]3 years ago
8 0

Answer:

Step-by-step explanation:

For a, you need to plugin -9 into the equations inside the boxes and solve.

y = x^2 + 3, y = 9^2 + 3, y = 81 + 3, y = 84.

y = √x - 2, y = √9 - 2, y = 3 - 2, y = 1.

For b, It's only possible for the second equation to output 0, as for the first, it's impossible for x^2 to equal -3 and add to 3 to get 0. For the second equation you can plug in 4 to get 2 - 2, which gives 0.

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Pls HELP meeee. My child needs some real help I I wish I would’ve took those college lessons.
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I think the answer would be 75%, meaning that the orange juice would have a greater percentage of water.
3 0
3 years ago
Read 2 more answers
Which expressions have the same value as .04 x .005. Select all that apply.
Novay_Z [31]

Answer:

Hello There!!

Step-by-step explanation:

0.04×0.005=0.0002

.0002 ✔

(4/100)=>0.04 × (5/1000)=>0.005=0.0002 ✔

(4 × .01)=>0.04 × (5 × .001)=>0.0005 =0.00002 ❌

.002 ❌

4 × 5 × .00001=0.0002 ✔

hope this helps,have a great day!!

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4 0
3 years ago
Avery and Caden have saved $27,000 towards a down payment on a house. They want to keep some of the money in a bank account that
Thepotemich [5.8K]

Answer:

$6750 in the bank account and $20,250 in the stock fund

Step-by-step explanation:

If B is the money they put in the bank and S is the amount they put in the stock fund, then:

B + S = 27000

1.024 B + 1.072 S = 1.06 × 27000

Solving the system of equations:

1.024 (27000 − S) + 1.072 S = 28620

27648 − 1.024 S + 1.072 S = 28620

0.048 S = 972

S = 20250

B = 27000 − S

B = 6750

They should put $6750 in the bank account and $20,250 in the stock fund.

6 0
3 years ago
Three rats in a lab are injected a type of medicine. The independent probabilities for each rat exhibiting side effects are 0.5,
EleoNora [17]

Step-by-step explanation:

There are four possible values of X: 0 rats show side effects, 1 rat shows side effects, 2 rats show side effects, or all 3 rats show side effects.

Probability X = 0:

P = (1 − 0.5) (1 − 0.4) (1 − 0.3)

P = 0.21

Probability X = 1:

P = (0.5) (1 − 0.4) (1 − 0.3) + (1 − 0.5) (0.4) (1 − 0.3) + (1 − 0.5) (1 − 0.4) (0.3)

P = 0.44

Probability X = 2:

P = (0.5) (0.4) (1 − 0.3) + (0.5) (1 − 0.4) (0.3) + (1 − 0.5) (0.4) (0.3)

P = 0.29

Probability X = 3:

P = (0.5) (0.4) (0.3)

P = 0.06

7 0
3 years ago
Next in sequence 9/16, -9/8, 9/4, -9/2, 9, ?
Fudgin [204]

Answer:

-18

Step-by-step explanation:

*2, *(-2), *2, *(-2) ...

5 0
3 years ago
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