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3 years ago

6w + 2(4w - 7) simplified

Mathematics

2 answers:

Gemiola [76]3 years ago

8 0

Answer:

14w -14

Step-by-step explanation:

6w + 2(4w - 7)

Distribute

6w+ 8w -14

Combine like terms

14w -14

lara31 [8.8K]3 years ago

4 0

Answer:

6w+(2×4w)-(2×7)

(6w+8w)-14=14w-14

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Simplify the following<br>3to the exponents 18devided by3to the exponents 15

Oliga [24]

Answer:

Step-by-step explanation:

$\frac{3^{18} }{3^{15} }$

$3^{18-15}$

$3^{3}$

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3 years ago

g If the p-value for your test statistic in a test of hypothesis (for example, a t-test, one-tail) is 0.07 and the significance

Reptile [31]

Complete Question

If the p-value for your test statistic in a test of hypothesis (for example, a t-test, one-tail) is 0.07 and the significance level alpha is set at 0.05, you conclude that:

Both hypotheses H0 and H1 can be accepted

The null hypothesis H0 cannot be rejected

The null hypothesis H0 can be rejected

The research hypothesis H1 can be accepted

Answer:

The correct option is B

Step-by-step explanation:

From the question we are told that

The p-value is $p-value = 0.07$

The level of significance is $\alpha = 0.05$

Generally given that it is a one tail test then the possible value of

The null hypothesis is $H_o : \mu = x$

Here $\mu$ is the mean and x is the value

the possible values of the alternative hypothesis is $\mu > x \ \ or \ \ \mu < x$

Now from the value given we see that the $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

7 0

3 years ago

If f(x) = -5X - 4 and g(x) = -3x - 2, find (f + g)(x).

dmitriy555 [2]

Answer:

(f+g) (x)= -5x-4= (-3x-2)

or, -5x + 3x= -4+2

or, -2x= -2

or,x= 2/2

:. x= 1

Step-by-step explanation:

first we have to make same alphabet and put together if there is subtract if it come in front we should make add and we can get the value of x

5 0

3 years ago

The sum of the first eight terms in a Geometric Series is 19680 and the sum of the first four terms is 240. A) Find the first te

Vikki [24]

Answer:

First Term = 6

Common Ratio = 3

Step-by-step explanation:

According to the Question,

Given, The sum of the first eight terms in a Geometric Series is 19680 and the sum of the first four terms is 240 .

Thus, $S_{8} = 19680$ & $S_{4} = 240$ .

The Sum of n-term of Geometric Mean is $S_{n} = \frac{a(r^{n-1)} }{r-1}$ Where, r>1 , a=First term of G.P & r=common Ratio .

Now, on solving $\frac{S_{8} }{S_{4} }$ we get,

$\frac{19680}{240} = \frac{\frac{a(r^{8-1)} }{r-1}}{\frac{a(r^{4-1)} }{r-1}}$

$82 = \frac{r^{8}-1 }{r^{4}-1 }$

$82r^{4}-82 = r^{8}-1\\r^{8}-82r^{4}+81 = 0\\r^{8}-81r^{4}-r^{4}+81 = 0\\(r^{4}-81)( r^{4}-1) =0$ (r=1 is not possible so neglect $( r^{4}-1) =0$ )

So, r=3 Now Put this value in $S_{4} = {\frac{a(r^{4-1)} }{r-1}}$ We get a=6 .

5 0

3 years ago

Solve for y.<br>y-x= 15<br>x= 12<br>Simplify your answer as much as possible.

Ad libitum [116K]

y - x = 15

y - 12 = 15

y = 27

Hope this helps! ;)

8 0

3 years ago

6w + 2(4w - 7) simplified​

6w + 2(4w - 7) simplified