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3 years ago

I dont know how to find x

Mathematics

1 answer:

Verdich [7]3 years ago

4 0

Simplify both sides:

x
—- = -9
4

now isolate the variable (x):

x= -9 • 4
x= -36

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1. Ifp=7,9 =-6, r = 10 and s=-4, calculate:

Ratling [72]

the answers as follows

a) 16 b) 13 c) 16 d) 46 e) -630 f) 18 g) -32 h) 50 i) -6 j)38 l)61

Step-by-step explanation:

a) p + 9 = 7 + 9 = 16

b) p - s = 7 - (-4) = 7 + 4 = 13

c) r - q = 10 - (-6) = 16

d)q + 52 = -6 + 52 = 46

e) pqr = 7 X (-6) X 10 = -630

f) r + 8 = 10 + 8 = 18

g) pq + r = 7 X (-6) + 10 = -42 + 10 = -32

h) r - qs = 10 - (10 X (-4))= 10 + 40 = 50

i) 3r + 6q = 3 X 10 + 6 X (-6) = 30 - 36 = -6

j) 59 - 3p = 59 - 3 X 7 = 59 - 21 = 38

k) check your question

l) 4q + 85 = 4 x (-6) + 85 = -24 + 85 = 61

4 0

4 years ago

Read 2 more answers

i need to find the measure of angle b in a right triangle... the base is 4. they hypotenuse is 9 and angle c is the right angle.

Romashka [77]

One way to solve this question is through trigonometry. :)

If you've learnt trigonometry, here are the basic formulas:
SOH CAH TOA (These formulas only apply for right-angled triangles)

Sin(angle) = (Side that is Opposite of angle)/(Hypotenuse)

Cos(angle) = (Side that is Adjacent of angle)/(Hypotenuse)

Tan(angle) = (Side that is Opposite of angle)/(Side that is Adjacent of angle)

In this case, we should use sine of b (the angle at the top of triangle as indicated in your question), where the opposite side is the base (I.e. 4 indicated in your question) and the hypotenuse is 9.

sin(b) = 4/9
{Make angle b the subject of the equation}
$b = {sin}^{ - 1} ( \frac{4}{9} )$
{Type this into the calculator}
Angle b = 26.4° (rounded off to 1 decimal place)

Hope this helps! :)

4 0

3 years ago

Cody wants to attend the fall festival at school. The price of admission to the festival is $5.50 and each game costs an additio

asambeis [7]

Answer:

G = 15 - 5.50 ÷ .75

G = 9.50 ÷ .75

Step-by-step explanation:

6 0

4 years ago

What's the circumference?

Phantasy [73]

1.The outer boundary,especially of a circular area ; perimeter
2.The area within a bounding line

6 0

4 years ago

Read 2 more answers

Jonathan goes to the store and purchases 3 pencils for $0.28 each , and y number of erasers for $0.38 each . Write an expression

Lynna [10]

The expression 1.22y is the amount spent by Jonathan.

<u>Step-by-step explanation</u>:

The cost per pencil = $0.28

∴ The total cost of 3 pencils = 0.28 $\times$ 3 = $0.84

The cost per eraser = $0.38

∴ The total cost of y erasers = 0.38 $\times$ y = $0.38y

Jonathan spent = Total cost of pencil + total cost of eraser

⇒ 0.84 + 0.38y

⇒ 1.22y

3 0

4 years ago

I dont know how to find x​

I dont know how to find x