All categories

1 year ago

Quick I need an answer to this Queston:

Mathematics

1 answer:

fiasKO [112]1 year ago

6 0

Step-by-step explanation:

$- \frac{3}{4} x + 2 \frac{1}{4 } = \frac{1}{2} x + 1$

$- \frac{3}{4} x + \frac{9}{4} = \frac{1}{2} x + \frac{2}{2}$

$\frac{ - 3x + 9}{4} = \frac{2x + 4}{4}$

$- 3x + 9 = 2x + 4$

$- 3x - 2x = 4 - 9$

$- 5x = - 5$

$x = \frac{ - 5}{ - 5}$

$x = 1$

The answer is C.

You might be interested in

What must be true in order for a term x – a to be a factor of a polynomial f(x)?

gladu [14]

Answer:

Option B will be the correct one.

Step-by-step explanation:

The factor of a polynomial, y = f(x) is obtained by making f(c) = 0 and then solving the equation f(c) = 0 for c and then from the obtained value of c we say (x - c) is a factor of the polynomial y = f(x).

Now, on the reverse, the term (x - a) will be a factor of a polynomial, y = f(x), if and only if f(a) = 0.

Therefore, option B will be the correct one. (Answer)

6 0

2 years ago

What is the inverse of the functionf(x)=2x+1

mr Goodwill [35]

x = 2x + 1

x - 2x = 1

-x = 1

x = -1

3 0

3 years ago

Read 2 more answers

An SRS of 100 flights of a large airline (airline 1) showed that 64 were on time. An SRS of 100 flights of another large airline

IRINA_888 [86]

Answer:

Option b) between 0.05 and 0.01.

Step-by-step explanation:

We are given the following in the question:

$x_1 = 64\\n_1 = 100\\x_2 = 80\\n_2 = 100$

Let $p_1$ and $p_2$ be the proportion of all parts from suppliers 1 and 2, respectively, that are defective.

$p_1 = \dfrac{x_1}{n_1} = \dfrac{64}{100} = 0.64\\\\p_2 = \dfrac{x_2}{n_2} = \dfrac{x_2}{n_2} = \dfrac{80}{100}= 0.8$

First, we design the null and the alternate hypothesis

$H_{0}: p_1 = p_2\\H_A: p_1 \neq p_2$

We use Two-tailed z test to perform this hypothesis.

Formula:

$\text{Pooled P} = \dfrac{x_1+x_2}{n_1+n_2}\\\\Q = 1 - P\\\\Z_{stat} = \dfrac{p_1-p_2}{\sqrt{PQ(\frac{1}{n_1} + \frac{1}{n_2})}}$

Putting all the values, we get,

$\text{Pooled P} = \dfrac{80+64}{100+100} = 0.72\\\\Q = 1 - 0.72 = 0.28\\\\Z_{stat} = \frac{0.64-0.8}{\sqrt{0.72\times 0.28(\frac{1}{100} + \frac{1}{100})}} = -2.5198$

Now, we calculate the p-value from the table at 0.05 significance level.

P-value = 0.01174

Since,

$0.05 > 0.01174 > 0.01$

Thus, the correct answer is

Option b) between 0.05 and 0.01.

6 0

3 years ago

this dosent make sense!!!!! Mrs Konstanty has Mrs. Nasta sold pizzas for the Pink Out Game. Pizzas were sold in a ratio of 2 che

SashulF [63]

Answer:

Step-by-step explanation:

You are using the ratio 2:7, cheese pizzas to pepperoni pizzas. You must multiply the ratio by the same numbers, or the ratio will become unproportional. The question states that 35 more pepperoni pizzas were sold than cheese. If we multiply the ratio by 7, we would have 14:49. The range in that is 35, so that means that 35 more pepperoni pizzas were sold. Because you are trying to find how many total pizzas were sold, you need to add 14 and 49 together to get a grand total of 63.

3 0

3 years ago

What type of function should you use to model the scenario?

kap26 [50]

Answer:

I think non of these! Cuz we use the CHOOSE function to model the scenario.

Hope this helps ❤️

4 0

3 years ago