1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yawa3891 [41]
3 years ago
5

Which expression is equivalent to 2√28+2√63

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

2\sqrt{28}+2\sqrt{63}=2\sqrt{4\cdot7}+2\sqrt{9\cdot7}=2\sqrt4\cdot\sqrt7+2\sqrt9\cdot\sqrt7\\\\=2(2)\sqrt7+2(3)\sqrt7=4\sqrt7+6\sqrt7=\boxed{10\sqrt7}

You might be interested in
One of the factors of the polynomial
oee [108]

Answer:

p = 2/3 while q = 5/3

Hope it helps, cos I'm kinda busy to give the explanation

8 0
3 years ago
Isabelle is using a square piece of cardboard to make a box without a lid. She cuts 2-inch squares from each corner and folds up
katrin2010 [14]

<em>The dimensions of the cardboard to make a box without a lid is 11 inches by 11 inches.</em>

<h2>Explanation:</h2>

In this problem, we have that Isabelle is using a square piece of cardboard to make a box without a lid. She cuts 2-inch squares from each corner and folds up the edges. The figure below shows this statement. The finished box has a volume (V) of 98 cubic inches, in other words:

V=98in^3

When folding up, we get the box without lip shown in the second figure. So the volume would be:

V=2xx \\ \\ V=2x^2 \\ \\ But: \\ \\ V=98 \\ \\ Then: \\ \\ 2x^2=98 \\ \\ x^2=49 \\ \\ x=\sqrt{49} \\ \\ x=7in

Since te cardboard is square, then the side (s) is given by:

s=2+x+2 \\ \\ s=2+7+2 \\ \\ s=11in

Therefore:

<em>The dimensions of the cardboard to make a box without a lid is 11 inches by 11 inches.</em>

<h2>Learn more:</h2>

Volume of a box: brainly.com/question/10501080

#LearnWithBrainly

8 0
3 years ago
Read 2 more answers
Caitlin is making cookies. She makes 2 batches of cookies on
zlopas [31]
2 and a half cups of chocolate I think
7 0
3 years ago
Read 2 more answers
Solve for each equation
IrinaK [193]
<span>w divided by 7 1/2 
Substitute variable for numbers
5 5/6 divided by 7 1/2
Convert the mixed numbers into improper fractions
35/6 divided by 15/2
Convert the division sign to multiplication while flipping the fraction 15/2 to 2/15
35/6*2/15
Multiply
Final Answer: 70/90</span>
7 0
3 years ago
Read 2 more answers
the area of a mirror is 225 square inches and its width is 13 3/4 inches. Will the mirror fit in a space that is 15 inches by 16
Tems11 [23]
A = 225 in^2
W = 13.75

15x16 = 240 in^2

240/13.75 = 17.45 in

the mirror would not fit in a space that is 15 by 16 inches since its approximately 13 by 17 inches
6 0
3 years ago
Other questions:
  • Nestor is saving money to buy a new camping tent each week he doubles the amount he saved the previous week if he saves a dollar
    15·1 answer
  • So for this question would it be 1?
    10·1 answer
  • Find two positive numbers whose ratio is 2:3 and whose product is 600.
    12·1 answer
  • Simplify 25/100 eiejevskkehs
    12·2 answers
  • What is the value of the underlinef digit in the following number 2,983,785
    8·2 answers
  • Please help with number 12
    5·2 answers
  • Help me with this it's confusing :(
    9·1 answer
  • 20% of a number is 12.<br> what is the whole number?
    15·2 answers
  • HELP!! PLEASE!! HELP!!
    5·1 answer
  • Lily's basketball team won 4/5 of their games. Lily scored points 2/3 of the games her team won. In waht fraction of her team's
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!