I need help with this algebra question

Can someone please help me with this math question?

Phantasy [73]

Answer:

x = (ab - ac )/c

Step-by-step explanation:

x/a = b/c - 1 Multiply through by ac:

cx = ab - ac Divide both sides by c:

x = (ab - ac )/c.

5 0

3 years ago

A bucket holds 2 liters of water. How many milliliters of water can the bucket hold?

Nezavi [6.7K]

The number of milliliters of water that the bucket can hold is 2000 milliliters.

First and foremost, it's important to know that 1000 milliliters is thesame thing as 1 liter.

Therefore, for one to get the number of milliliters in 2 liters, one will have to multiply 1000 milliliters by 2. This will be:

= 1000 milliliters × 2

= 2000 milliliters

Also, you can do the same for other figures too e.g. for 5 liters will be:

= 5 × 1000 milliliters

= 5000 milliliters.

In conclusion, the number of milliliters of water that the bucket can hold is 2000 milliliters

Read related link on:

brainly.com/question/24429956

7 0

3 years ago

The mean waiting time at the drive-through of a fast-food restaurant from the time the food is ordered to when it is received is

alexira [117]

Answer:

a) And if we replace we got: $\bar X= 78$

$s = 15.391$

b) $78-3.25\frac{15.391}{\sqrt{10}}=62.182$

$78-3.25\frac{15.391}{\sqrt{10}}=93.818$

So on this case the 99% confidence interval would be given by (62.182;93.818)

Step-by-step explanation:

Dataset given: 109 67 58 76 65 80 96 86 71 72

Part a

For this case we can calculate the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And if we replace we got: $\bar X= 78$

And the deviation is given by:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And if we replace we got $s = 15.391$

Part b

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

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

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=10-1=9$

Since the Confidence is 0.99 or 99%, the value of $\alpha=0.01$ and $\alpha/2 =0.005$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,9)".And we see that $t_{\alpha/2}=3.25$

Now we have everything in order to replace into formula (1):

$78-3.25\frac{15.391}{\sqrt{10}}=62.182$

$78-3.25\frac{15.391}{\sqrt{10}}=93.818$

So on this case the 99% confidence interval would be given by (62.182;93.818)

8 0

3 years ago

The figure below shows a rectangle ABCD having diagonals AC and DB.

Keith_Richards [23]

Answer: b) ΔADC ≡ ΔBCD by SAS

<u>Step-by-step explanation:</u>

Step 1: AD = BC SIDES are congruent

Step 2: ∠ADC ≡ ∠BCD ANGLES are congruent

Step 3: DC = DC SIDES are congruent

The proof is using Side-Angle-Side (SAS)

Look at the angles in step 2. These are the triangles you are proving congruency for: ΔADC ≡ ΔBCD

4 0

4 years ago

Please help !! i’ll give 5 stars if help.

Firlakuza [10]

Answer:

true

Step-by-step explanation:

there are two x-intercepts

6 0

3 years ago