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jeka57 [31]
3 years ago
12

PreAlgebra exercise 4/7 + - 1/4 =

Mathematics
2 answers:
musickatia [10]3 years ago
6 0

Answer:

0.32142857142

Step-by-step explanation:

Svetach [21]3 years ago
4 0
9/28 would be the answer.
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Find the area of this parallelogram
gulaghasi [49]

Answer:

140 cm²

Step-by-step explanation:

The height of the parallelogram is 10cm . And its base is 14cm .We know that the area of parallelogram is product of base and height .

⇒ Area = base × Height

⇒ Area = 14cm × 10cm

⇒ Area = 140 cm² .

<h3><u>Hence </u><u>the</u><u> </u><u>area </u><u>of</u><u> the</u><u> </u><u>parall</u><u>elogram</u><u> is</u><u> </u><u>1</u><u>4</u><u>0</u><u> </u><u>cm²</u><u> </u><u>.</u></h3>
7 0
3 years ago
What is the answer for this problem?
butalik [34]

Answer: are you on an ipad or phone

Step-by-step explanation:

3 0
3 years ago
Find the value of x. correct answer please
liq [111]

Answer:

x =  \sqrt{30}

Step-by-step explanation:

By Geometric mean property:

BD =  \sqrt{3 \times 7}  \\ BD =  \sqrt{21} \\ by \: pythagoras \: theorem \\  {x}^{2}  =  { (\sqrt{21}) }^{2}  +  {(3)}^{2}  \\  {x}^{2}  = 21 + 9 \\  {x}^{2}  = 30 \\ x =  \sqrt{30}

5 0
3 years ago
Joselyn is a manager at a sign-painting company. She has two painters, Allen and Brianne. Allen can complete a large project in
OverLord2011 [107]

Let area to be painted = X m²

Rate for Allen = X / 16 m² / h

Rate for Brianne = X / 18 m² / h


Combined rate

X/16 + X/18 m² / h

[ 18X + 16X ] / 144 m² / h

34 X / 144 m² / h


time = X / [ 34 X / 144 ] h

time = 144 / 34 h

time = 4 h 14 min


5 0
3 years ago
If f(x)= 20-3x, then find a if f(a)= -11.
Basile [38]

Answer:

53

Step-by-step explanation:

if f(a)= -11 the the equation is: 20-3(-11)

First, multiply -3 and -11:

20-3×(-11)

20+33

Now, add:

20+33= <u>53</u>

<u></u>

Hope this helps!! <3

6 0
3 years ago
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