3 years ago

Can you please help me understand how to solve a trig ratio like this?

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

6 0

Answer:

cos47° = $\frac{x}{7}$

Step-by-step explanation:

cos47° = $\frac{adjacent}{hypotenuse}$ = $\frac{x}{7}$

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Mrs.Brown gives two tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What perc

viktelen [127]

Answer:

25%

Step-by-step explanation:

100%-30%=70%

70%-45%=25%

7 0

3 years ago

Find the value of x. F 8 E Х Н. Х -

Vladimir79 [104]

Answer:

Step-by-step explanation:

x = 8

3 0

2 years ago

What is the value of d to the nearest tenth?

Ghella [55]

Answer: $d=13.8$

Step-by-step explanation:

A line that cuts a circle at two points is called "secant".

There is a theorem known as "Intersecting Secant Theorem". This is the theorem you need to use to find the value of "d".

According the Intersecting Secant Theorem:

$(14)(14+20)=(16)(16+d)\\(14)(34)=(16)(16+d)$

Having this expression, the next step is to solve for "d":

Use Distributive property:

$476=256+16d$

Subtract 256 from both sides:

$476-256=-256+256+16d$

$220=16d$

Divide both sides by 16:

$\frac{220}{16}=\frac{16d}{16}\\\\13.75=d$

The value of "d" rounded to the nearest tenth is:

$d=13.8$

6 0

3 years ago

Help me with this please

bekas [8.4K]

Answer:

f(-5) = 4(-5) + 1 = -20 + 1 = -19

f(-1) = 4(-1) + 1 = -4 + 1 = -3

f(2) = 4(2) + 1 = 8 + 1 = 9

f(3) = 4(3) + 1 = 12 + 1 = 13

f(5) = 4(5) + 1 = 20 + 1 = 21

7 0

2 years ago

If x divided by 9 = 1, how do you know what x is

padilas [110]

X/9=1

Multiply both sides by 9. So x=9.

6 0

3 years ago

Read 2 more answers