All categories

3 years ago

Pls ANWSER this question :) (math)

Mathematics

2 answers:

Aleks04 [339]3 years ago

8 0

Answer:

Two miles per hour

Step-by-step explanation:

Just take your time and add carefully

son4ous [18]3 years ago

6 0

Answer:

A 2 miles per hour

Step-by-step explanation:

You might be interested in

Solve for x parallel lines

ss7ja [257]

X will be equal to 20

4 0

3 years ago

What is the value of AAA when we rewrite 2^{x-6}+2^{x}2 x−6 +2 x 2, start superscript, x, minus, 6, end superscript, plus, 2, st

Nuetrik [128]

Answer:

$A=\frac{65}{64}\ or\ A=1.015625$

Step-by-step explanation:

Given:

The expression is given as:

$2^{x-6}+2^{x}$

The equivalent expression to the above expression is given as:

$A\cdot 2^{x}$

Now, simplifying the original expression using the law of indices:

$a^{m-n}=\frac{a^m}{a^n}$

So, $2^{x-6}=\frac{2^x}{2^6}$ . The expression becomes:

$=\frac{2^x}{2^6}+2^x$

Now, $2^x$ is a common factor to both the terms, so we factor it out. This gives,

$=2^x(\dfrac{1}{2^6}+1)\\\\=2^x(\frac{1}{64}+1)\\\\=2^x(\frac{1}{64}+\frac{64}{64})\\\\=2^x(\frac{1+64}{64})\\\\=2^x(\frac{65}{64})\\\\=(\frac{65}{64})\cdot 2^x$

Now, on comparing the simplified form with the equivalent expression, we conclude:

$A\cdot2^x=(\frac{65}{64})\cdot 2^x\\\\A=\frac{65}{64}\ or\ 1.015625$

Therefore, the value of 'A' is $A=\frac{65}{64}\ or\ A=1.015625$

7 0

3 years ago

Read 2 more answers

WILL GIVE BRAINIEST!! In triangle PQR, PQ = 13, QR = 14, and PR = 15. Let M be the midpoint of QR. Find PM.

Oduvanchick [21]

Answer:

6.5

Step-by-step explanation:

If M is the midpoint of PQ, PM is congruent to MQ. Midpoint means middle. So, the midpoint divides PQ in half. PQ = 13, and 13/2 = 6.5.

4 0

3 years ago

A sample of 50 cotton threads shows the mean breaking strength to be 220 grams and the sample standard deviation to be 12 grams.

xenn [34]

Answer:

$220-2.01\frac{12}{\sqrt{50}}=216.589$

$220+2.01\frac{12}{\sqrt{50}}=223.411$

The confidence interval for this case would be (216.589, 223.411)

Step-by-step explanation:

Information given

$\bar X=220$ represent the sample mean

$\mu$ population mean

s=12 represent the sample standard deviation

n=50 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=50-1=49$

The Confidence level is 0.95 or 95%, the significance is $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case is $t_{\alpha/2}=2.01$

And replacing we got:

$220-2.01\frac{12}{\sqrt{50}}=216.589$

$220+2.01\frac{12}{\sqrt{50}}=223.411$

The confidence interval for this case would be (216.589, 223.411)

6 0

3 years ago

Jaycee bought 8 gallons of gas for $31.12 right any quetion relating the cost c to the number of gallons g of gas how much wood

S_A_V [24]

$3.89g=c
$3.89•11=c
$42.79=c
$42.79 for 11 gallons of gas

5 0

3 years ago