I am very confused amd i also hate math so please help

To increase any number by a percent we can find the growth factor and multiply the number by that growth factor. Find the factor

Kay [80]

Answer:

1.10

Step-by-step explanation:

An exponential function with base b is defined by ƒ(x) = a(b)ˣ.

The base b is the growth factor — the factor by which each successive term is multiplied.

If b > 1, we have exponential growth.

The function is

ƒ(x) = 350(1 + 0.10)ˣ = 350(1.10)ˣ

The growth factor is 1.10.

3 0

3 years ago

Find the amount of the discount on a $234 item with a 15% discount

hodyreva [135]

I believe it's
234-15%= 198.9

3 0

3 years ago

Read 2 more answers

For which pairs of functions is (f*g)(x)=x?

ololo11 [35]

Answer is probably
C. f(x)=x-2/3 and g(x)=2-3x

3 0

3 years ago

Seth drinks a glass of orange juice every day that contains 0.6 grams of Vitamin C. He eats a serving of strawberries for snack

belka [17]

Answer:

3 week or 21 days consume Vitamin C = 19.95 grams

Step-by-step explanation:

given data

orange juice Vitamin C = 0.6 grams

strawberries Vitamin C = 0.35 grams

to find out

How many grams of Vitamin C does Seth consume in 3 weeks

solution

we first find total Vitamin C consume in 1 day that is

total Vitamin C consume in 1 day = orange juice Vitamin C + strawberries Vitamin C

total Vitamin C consume in 1 day = 0.6 + 0.35

total Vitamin C consume in 1 day = 0.95 grams

so

in 3 week have 3 × 7 = 21 days

so in 21 days consume Vitamin C = 1 day consume × no of days consume

21 days consume Vitamin C = 0.95 × 21

21 days consume Vitamin C = 19.95 grams

5 0

4 years ago

The pesticide diazinon is in common use to treat infestations of the German cockroach, Blattella germanica. A study investigated

cluponka [151]

Answer:

We conclude that there is no difference in the proportion of cockroaches that died on each surface.

Step-by-step explanation:

We are given that a study investigated the persistence of this pesticide on various types of surfaces.

After 14 days, they randomly assigned 72 cockroaches to two groups of 36, placed one group on each surface, and recorded the number that died within 48 hours. On the glass, 18 cockroaches died, while on plasterboard, 25 died.

Let $p_1$ = proportion of cockroaches that died on glass surface.

$p_2$ = proportion of cockroaches that died on plasterboard surface.

So, Null Hypothesis, $H_0$ : $p_1-p_2$ = 0 {means that there is no difference in the proportion of cockroaches that died on each surface}

Alternate Hypothesis, $H_A$ : $p_1-p_2\neq$ 0 {means that there is a significant difference in the proportion of cockroaches that died on each surface}

The test statistics that would be used here Two-sample z proportion statistics;

T.S. = $\frac{(\hat p_1-\hat p_2)-(p_1-p_2)}{\sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1}+\frac{\hat p_2(1-\hat p_2)}{n_2} } }$ ~ N(0,1)

where, $\hat p_1$ = sample proportion of cockroaches that died on glass surface = $\frac{18}{36}$ = 0.50

$\hat p_2$ = sample proportion of cockroaches that died on plasterboard surface = $\frac{25}{36}$ = 0.694

$n_1$ = sample of cockroaches on glass surface = 36

$n_2$ = sample of cockroaches on plasterboard surface = 36

So, test statistics = $\frac{(0.50-0.694)-(0)}{\sqrt{\frac{0.50(1-0.50)}{36}+\frac{0.694(1-0.694)}{36} } }$

= -1.712

The value of z test statistics is -1.712.

Since, in the question we are not given with the level of significance so we assume it to be 5%. Now, at 5% significance level the z table gives critical values of -1.96 and 1.96 for two-tailed test.

Since our test statistics lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.

Therefore, we conclude that there is no difference in the proportion of cockroaches that died on each surface.

8 0

4 years ago