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Goshia [24]
2 years ago
8

Help please, very confused

Mathematics
1 answer:
Fynjy0 [20]2 years ago
6 0

57°

Step-by-step explanation:

angle of RAD is the double of RBD

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Wright the inequality that represents the sentence.
Serga [27]
X-5 is greater than or equal to -28
X*4 is less than or equal to -10
(x/3) + 6 is greater than 14
7 0
3 years ago
McKenna wants to divide 48.6 by 0.7. In order to estimate the quotient, which is the best expression to use?
Natasha_Volkova [10]

Answer:

Option D is the Answer

Step-by-step explanation:

Given : Benni wants to divide 48.6 by 0.7.

To find : In order to estimate the quotient, which is the best expression to use?

Solution :

In order to estimate i.e. an approximate calculation we round the numbers,

48.6 as tenth place is > 5 then it round completely

0.7 as tenth place is > 5 then it round completely

So the estimated expression is given by,

Therefore, option D is correct.

6 0
3 years ago
Read 2 more answers
Barb had $112 in her savings account. Then deposited the same amount of money into her savings account in the next 4 months. Now
Kay [80]
• Subtract first: 333 - 112 = 221

• Divide second: 221 ÷ 4(months) = 55.25

• Equation: (333 - 112) ÷ 4

Barb deposited $55.25 each month. 

Hope this helps! :D

~PutarPotato
7 0
3 years ago
Read 2 more answers
Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)
Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

8 0
2 years ago
Which expression is equivalent to 4√147 <br> A. 28√3 <br> B. 12√7 <br> C. 3√7
grin007 [14]

Answer:

(A) 28 squared 3

Step-by-step explanation:

8 0
3 years ago
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