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DiKsa [7]
3 years ago
7

I need extreme help with this.​

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0

The first way i.e. the 4(x)

Step-by-step explanation:

Its because there's no gap in between and the letter is surrounded by brackets on both sides so it cant be divided and it's the only letter . There's no rule in mathematics that allows you to multiply a single number surrounded by brackets at both sides.

marishachu [46]3 years ago
6 0

Answer

Step-by-step explanation:

-

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A triangle can have at most<br> right angle.<br> 04<br> 01<br> OO<br> 2
galben [10]
A triangle can only have one right angle. If it had more than one, it would no longer be considered a triangle... It wouldn't have the correct amount of sides and it would be strangely shaped.

The answer would be number 1.

Have a great day/night!
6 0
3 years ago
Find the values of the variables for the parallelogram <br> measure angle 1 = 4y - 10​
matrenka [14]

The value of x and z are 15 and 4.5 respectively

<h3>Parallelogram and triangles</h3>

The triangles in the parallelogram are isosceles. This shows that the base angles are equal

From the given parallelogram, the following are true

3x = 45

x = 45/3

x = 15

Similarly;

10z = 45

z = 45/10

z = 4.5

Hence the value of x and z are 15 and 4.5 respectively

Learn more on parallelogram here: brainly.com/question/3050890

6 0
3 years ago
A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the we
zepelin [54]
<h2>Answer with explanation:</h2>

Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :

X= 155.1, 154.8, 155.5, 155.3, and 154.6.

here, n=5

The average weight :\overline{x}=\dfrac{\sum^{i=5}_{i=1}x_i}{n}

=\dfrac{155.1+154.8+155.5+155.3+154.6}{5}\\\\=\dfrac{775.3}{5}=155.06

∴ Average weight (\overline{x})=155.06 grams

Uncertainty = Standard deviation: \sigma=\sqrt{\dfrac{\sum^{i=5}_{i=1}(x_i-\overline{x})^2}{n}}

=\sqrt{\dfrac{(0.04)^2+(-0.26)^2+(0.44)^2+(0.24)^2+(-0.46)^2}{5}}

=\sqrt{\dfrac{0.532}{5}}=\sqrt{0.1064}=0.326190128606\approx0.33

i.e. Its uncertainty : \sigma=0.33

The fractional uncertainty = \dfrac{\sigma}{\overline{x}}

=\dfrac{0.33}{155.06}=0.00212820843544\approx0.002

7 0
4 years ago
Can you please help me with 19 20 21 22 and look at the green bar that has all the info thank you
abruzzese [7]
19. 10 divided by 3 = 5 pounds
20. 5.5 divided by .5 = 11
21. no because 1.25 x 2.5 = 3.12 and she only has $3
22. the restaurant because the restaurant wants to buy 30lb and its $1.25 so 30 x 1.25 = 37.5  and the hotel buys 12 lb for $3 so that is 12 x 3= 36
3 0
3 years ago
Read 2 more answers
Solve system by elimination<br> y=x^2<br> y=x+2<br> SHOW YOUR WORK
Dimas [21]
We have that
y=x²----> equation 1<span>
y=x+2-----> equation 2

multiply equation 1 by -1
-y=-x</span>²

add equation 1 and equation 2
-y=-x²
 y=x+2
------------
0=-x²+x+2-------------> -x²+x+2=0-----> x²-x-2=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

(x²-x)=2
<span>Complete the square. Remember to balance the equation by adding the same constants to each side
</span>(x²-x+0.5²)=2+0.5²

Rewrite as perfect squares

(x-0.5)²=2+0.5²
(x-0.5)²=2.25-----> (x-0.5)=(+/-)√2.25-----> (x-0.5)=(+/-)1.5
x1=1.5+0.5-----> x1=2
x2=-1.5+0.5---- > x2=-1

for x=2
y=x²----> y=2²----> y=4
the point is (2,4)

for x=-1
y=x²----> y=(-1)²---> y=1
the point is (-1,1)

the answer is
the solution of the system are the points
(2,4) and (-1,1)


3 0
4 years ago
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