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GuDViN [60]
3 years ago
7

Solve the simultaneous equations:

" alt="y = x + 7 " align="absmiddle" class="latex-formula"> and x^{2} +  y^{2} = 25

Mathematics
1 answer:
labwork [276]3 years ago
3 0
I hope this helps you

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SOMEONE PLS HELP ASAP!!!
ladessa [460]

Answer: h(x)=10(0.4)^x

Step-by-step explanation:

The exponential function h, represented in the table, can be written as h(x)=ab^x

From table, at x=0, h(x) =10

Put theses values in equation,, we get

10=a.b^0\\\\\Rightarrow\ 10=  a (1)\\\\\Rightarrow\ a= 10

Also, for x= 1 , h(x) = 4, so put these values and a=10 in the equation , we get

4=10b^1\\\\\Rightarrow\ b=\dfrac{4}{10}\\\\\Rightarrow\ b= 0.4

Put value of a and b in the equation ,

h(x)=10(0.4)^x  →  Required equation.

5 0
3 years ago
Greg has decreased his running time by 1/10 minute each of the last six weeks. Write an expression to represent the total change
Nastasia [14]

x is your starting running time. 1/10 of a minute is 6 seconds, so you can do x - 6(6). 6 times 6 = 36, so your answer is x - 36 seconds. 36 seconds.

7 0
3 years ago
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Your credit card balance is 1,200$ after you buy an iPhone X. You decide to take 5 months to pay it off at 21% interest rate. Wh
natta225 [31]

Answer:

Total Payment is $1305

Step-by-step explanation:

simple interest = (principal × rate × time)/100

p = $1200

time = 5 months

rate = 21%

Interest = (1200 × 21 × 5/12)/100

= 12 × 21 × 5/12 = 21 × 5

Interest = $105

Total payment = credit balance + interest

= $1200 + $105

= $1305

7 0
3 years ago
Hey i need help thank ya'll! =D
iogann1982 [59]

Answer:

45 / 56

Step-by-step explanation:

4 0
3 years ago
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2. A 12-ounce bottle of fruit juice costs
Law Incorporation [45]

Answer:

Costs $2.75

Step-by-step explanation:

Set up:

\frac{12}{1.50} =  \frac{22}{x}

Cross Multiply:

12x = 33

Divide by 12:

x = $2.75

7 0
3 years ago
Read 2 more answers
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