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3 years ago

Which systems of equations intersect at point A in this graph?

Mathematics

1 answer:

Svet_ta [14]3 years ago

6 0

Y = 4 x - 9

y = - 3 x - 5

I hope this will help you

i looked this up and this is what i got

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If 10^2y = 25, then 10^-y equals: (a) -1/5 (b) 1/625 (c) 1/50 (d) 1/25 (e) 1/5

Gemiola [76]

<h3>given:</h3>

$10 ^{2y} = 25$

${10}^{y} = .......$

<h3>solution:</h3>

$10 ^{2y} = 25$

$(10y {)}^{2} = {5}^{2}$

$10y = 5$

$\frac{1}{ {10}^{y} } = \frac{1}{5}$

${10}^{ - y} = \frac{1}{5}$

therefore, the correct answer is option E.

8 0

2 years ago

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Find the Least common multiple of 4xy cubed and 2x squared y cubed

Mashcka [7]

Answer
The LCM for 4xy², 2x²y3 is the numeric part 4 multiplied by the variable part.
4xy²
Step-by-step explanation:

6 0

2 years ago

Eagle Outfitters is a chain of stores specializing in outdoor apparel and camping gear. They are considering a promotion that in

Zina [86]

Answer:

Step-by-step explanation:

Assuming that:

the promotion will be considered to be a success if more than 10% use the coupons received.

and coupons are sent to 100 credit card customers.

Then, the null hypothesis and alternative hypothesis is:

$\mathbf{H_o:p\le 0.10} \\ \\ \mathbf{H_a:p> 0.10}$

sample size n = 100

Using the eagle file data;

the no of people in the sample who use the coupon = 13

then,

$\hat p = \dfrac{x}{n}$

$\hat p = \dfrac{13}{100}$

$\hat p = 0.13$

Test statistics can be computed as:

$Z = \dfrac{\hat p - p }{\sqrt{\dfrac{p(1-p)}{n}}}$

$Z = \dfrac{0.13 - 0.10 }{\sqrt{\dfrac{0.10(1-0.10)}{100}}}$

$Z = \dfrac{0.03 }{\sqrt{\dfrac{0.09}{100}}}$

$Z = \dfrac{0.03 }{\sqrt{0.0009}}$

$Z = \dfrac{0.03 }{0.03}$

$Z = 1$

$P-value = P(Z > 1) \\ \\ P-value = 1 - P(Z < 1 ) \\ \\ P-value = 1 - 0.8413 \\ \\ P-value = 0.1587 \\ \\$

At ∝ = 0.05

Since, P-value is greater than ∝, then we fail to reject $\mathbf{H_o}$ .

Therefore, Eagle should not go with the promotion; a larger sample should be taken.

3 0

3 years ago

What is the solution to the system of equations: y = -2x – 3 5x = -4+ y

12345 [234]

Answer: y=-2x-3 = x=-1/2y+-3/2

5x = -4+ y = x=1/5y+-4/5

proof:

y=-2x-3 -- Step 1: Flip the equation.

−2x−3=y

Step 2: Add 3 to both sides.

−2x−3+3=y+3

−2x=y+3

Step 3: Divide both sides by -2.

−2x/-2=y+3/-2

5x = -4+ y -- Step 1: Divide both sides by 5.

5x/5=y-4/5

3 0

2 years ago

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Can someone help me thank you

Inga [223]

Answer:

1. 4/100

2.39/100

3 0.7

4 0.52

hope this helps!

3 0

3 years ago

Read 2 more answers