Ask question

Ask question

All categories

3 years ago

6

What is an equivalent way to write the expression without grouping symbols? 7(4−x) Drag and drop the values into the boxes to cr

eate an equivalent expression.

1 answer:

wlad13 [49]3 years ago

8 0

Answer:

28-7x

Step-by-step explanation:

To write the expression without grouping symbols, multiply the 7 into both terms using the distributive property.

7*4 - 7^x

28-7x

You might be interested in

Find the unit vector in the direction of u = (-3,2).

DENIUS [597]

$\bf \textit{unit vector for }(a,b)\implies \left( \cfrac{a}{\sqrt{a^2+b^2}}~~,~~\cfrac{b}{\sqrt{a^2+b^2}} \right)\\\\
-------------------------------\\\\
(-3,2)\qquad \stackrel{unit~vector}{\implies }\qquad \left( \cfrac{-3}{\sqrt{(-3)^2+2^2}}~~,~~\cfrac{2}{\sqrt{(-3)^2+2^2}} \right)
\\\\\\
\left( -\cfrac{3}{\sqrt{13}}~~,~~ \cfrac{2}{\sqrt{13}}\right)\\\\
-------------------------------$

$\bf \textit{and now let's \underline{rationalize} the denominator for each}
\\\\\\
-\cfrac{3}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies -\cfrac{3\sqrt{13}}{13} \qquad \qquad \qquad \qquad \cfrac{2}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies \cfrac{2\sqrt{13}}{13}
\\\\\\
\textit{and written in \underline{ai+bj form}}\qquad -\cfrac{3\sqrt{13}}{13}i~~~~+~~~~\cfrac{2\sqrt{13}}{13}j$

7 0

3 years ago

a store had 600 pounds of feed. after delivering equal amounts to 4 farmers , there are 60 pounds left. how many pounds did each

Daniel [21]

Answer: 135 pounds

Step-by-step explanation:

600-60=540

540/4=135

6 0

3 years ago

In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.

Stels [109]

8

Step-by-step explanation:

Critical Path Analysis is presented using the circle and arrow diagrams.
Earliest Start Time = the earliest possible time of starting the activity
An arrow running between two event circles shows the activity needed to complete that task.
All arrows run left to right
Time for doing just task E = 8 hours (as shown in the figure)

7 0

3 years ago

At the post office, 42% of packages ship priority mail. If 150 packages are shipped today, how many will not go priority mail?

kenny6666 [7]

Since 42% of packages are being shipped via priority mail, we can safely assume the other 58% are not. 150 x 0.58 is 87.

7 0

3 years ago

The math department is putting together an order for new calculators. The

alexgriva [62]

Answer:

D

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers