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Ira Lisetskai [31]
3 years ago
5

Please help me, i’m stuck in this answer

Mathematics
1 answer:
Feliz [49]3 years ago
4 0

Answer:

I think it stays the same.

Step-by-step explanation:

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Sara used to make $8 per hour babysitting.She now makes $10.50 per hour. What is her percent increase to the nearest percent?
Paraphin [41]
Sara percentage has grown 84%
3 0
3 years ago
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What’s the approximate value of x?
drek231 [11]

Answer:

Option C: 4

Step-by-step explanation:

<u>Use the Pythagorean Theorem:</u>

a^2+b^2=c^2

3^2+b^2=5^2

9+b^2=25

b^2=16

b=4

Therefore, the value of x is 4.

4 0
3 years ago
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a local pizzeria sold 65 pizzas yesterday.(a) the owner offers the employees a bonus if the number of pizza increased by 20 pers
BigorU [14]

Answer: 78 pizzas

Step-by-step explanation:

65/10=6.5=10%

6.5*2=13 pizzas=20%

65+13=78 pizzas

4 0
3 years ago
Sin(x+y)-sin(x-y)/cos(x+y)+cos(x-y)=tany<br> how do i verify this?
dsp73

Answer:

Step-by-step explanation:

Numerator

sin

x

cos

y

+

cos

x

sin

y

−

[

sin

x

cos

y

−

cos

x

sin

y

)

=

sin

x

cos

y

+

cos

x

sin

y

−

sin

x

cos

y

+

cos

x

sin

y

=

2

cos

x

sin

y

Denominator

cos

x

cos

y

−

sin

x

sin

y

+

cos

x

cos

y

+

sin

x

sin

y

=

cos

x

cos

y

−

sin

x

sin

y

+

cos

x

cos

y

+

sin

x

sin

y

=

2

cos

x

cos

y

---------------------------------------------------------------

left side can now be expressed as

2

cos

x

sin

y

2

cos

x

cos

y

=

2

cos

x

sin

y

2

cos

x

cos

y

=

sin

y

cos

y

and  

sin

y

cos

y

=

tan

y

=

right side hence proved

7 0
3 years ago
I need helpWith this problemFor my grandson. I did get some help but need more. Thank you!
Pani-rosa [81]

Step 1:

Percent is part of 100.

Step 2

First part:

60 units split into 80% and 20%

\begin{gathered} 80\text{ \% of 60 units = }\frac{80}{100}\text{ }\times60\text{ = 48} \\ 20\text{ \% = 12} \end{gathered}

Second part

12 units = 40 %

\begin{gathered} 40\text{ \% = 12 units } \\ 60\text{ \%  = }\frac{60\times12}{40}\text{ = 18 units} \end{gathered}

Third part

30 % = 18 units

\begin{gathered} 30\text{ \%  =  18 units} \\ 70\text{ \%  = }\frac{18\text{ }\times\text{ 70}}{30}\text{ = 42 units} \end{gathered}

Fourth part

75 % = 42 units

\begin{gathered} 75\text{ \%  =  42 units} \\ 25\text{ \%  =  }\frac{25\text{ }\times\text{ 42}}{75}\text{ = 14 units} \end{gathered}

Final answer

14 + 42 = 56 units

The length of the bottom diagram = 56 units

5 0
1 year ago
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