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Alekssandra [29.7K]
4 years ago
7

Solve the system of equations.

Mathematics
1 answer:
slavikrds [6]4 years ago
8 0
A..... (im pretty sure)
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Pls help with trig i would rlly appreciate !
Ede4ka [16]

Answer:

6root 85 /85 is ans..

Step-by-step explanation:

given,

a=7 and b=6

as it is a Right angled triangle

h^2=p^2+b^2

h =   \sqrt{p {}^{2}  + b {}^{2} }

so,

\sqrt{6 {}^{2}  + 7 {}^{2} }

=

\sqrt{85}

now, sin thita=p/h

so sin thita=

6   \div  \sqrt{85}

=6   \sqrt{85} \div 85

ans...

hope its helpful....

5 0
3 years ago
Help me solve (x+1)over(5)=(x+5)over(7)
Elanso [62]

(x + 1) / 5 = (x + 5) / 7

cross multiply

(x +1) x 7 = 5 x (x + 5)

7x + 7 = 5x + 25

take the like terms to one side

7x - 5x = 25 - 7

2x = 18

divide by 2 to isolate x

2x / 2 = 18 / 2

x = 9

check:

9 + 1 / 5 = 9 + 5 / 7

10 / 5 = 14 / 7

2 = 2

7 0
3 years ago
Read 2 more answers
The ratio of oil to vinegar in a certain dressing is 8:5 how much oil must be blended with 7 liters of vinegar
Eduardwww [97]

10 5/6 liters

Explanation:

Oil to Vinegar:

8 to 5

x=oil

x to 7 is the ratio you want to find

Cross multiply

8 to 5

x to 7

you would get 56=5x

Divide and get x=10 5/6

6 0
3 years ago
Last week you recorded your vehicle driving a total of 62.4 miles. This week,
Bezzdna [24]

Answer:

11.2.

Step-by-step explanation:

3 0
3 years ago
Someone please solve this​
Wittaler [7]

Step-by-step explanation:

2 x  \times  \frac{1}{4}  - 1 \times  \frac{1}{4}  - 2 \frac{1}{4}  = 1 \times  \frac{1}{4}

\frac{2}{8}  -  \frac{1}{4}  -  \frac{2}{8}  =  \frac{1}{4}

and then minus them

8 0
3 years ago
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