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kipiarov [429]
3 years ago
13

What is 7/8 - 4/5 = what is 7/8 - 4/5

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
6 0
The answer is 3/40 7-4
monitta3 years ago
3 0
First find common denominators and do the same to the numerators.

4/5 = 32/40
7/8 = 35/40

35/40 - 32/40 = 3/40
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Fabio is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be model
Tomtit [17]

Answer:

F(2, 11/2)

Step-by-step explanation:

The expression:

(x-2)² = 10(y - 3)

can be rewritten in the vertex form as follows:

(x-2)² = 10y - 30

(x-2)² + 30 = 10y

1/10(x-2)² + 3 = y

General vertex form is:

y = a(x-h)² + k

then, the vertex is locate at (h, k). In this case the vertes is (2, 3), and <em>a </em>= 1/10

The focus of a parabola is located ar F(h, k+p), where <em>p</em> = 1/(4a). Replacing into these equations:

p = 1/(4*1/10) = 5/2

F(2, 3+5/2) = F(2, 11/2)

6 0
3 years ago
Read 2 more answers
Please help me please help me please help me
MissTica

Answer:

B.50

Step-by-step explanation:

The two angles form a right angle ( indicated by the little square )

Right angles have a measure of 90 degrees

Hence, x + 10 + 30 = 90

( Note that we just created an equation that we can use to solve for x )

We now solve for x using the equation we created

x + 10 + 30 = 90

Combine like terms

x + 40 = 90

Subtract 40 from both sides

x = 50

3 0
3 years ago
Convert 24 + 6y = -36 in slope intercept fork
konstantin123 [22]

Answer:

y =  - 10

Step-by-step explanation:

24 + 6y = -36 \\ 6y = -36 - 24 \\ 6y =  - 60 \\ y =   - \frac{60}{6}  \\ y =  - 10

5 0
2 years ago
Read 2 more answers
2. Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 3617 in? One day, her
Juliette [100K]

Answer:

863 cups

Step-by-step explanation:

step 1

Find the volume of the conical cup

The volume of the cone (cup) is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=2/2=1\ in ----> the radius is half the diameter

h=4\ in

assume

\pi =3.14

substitute

V=\frac{1}{3}(3.14)(1^{2})4=4.19\ in^3  

step 2

Find out how many cups of water must Carissa scoop out  of the sink

Divide the volume of the sink by the volume of the cup

so

\frac{3,617}{4.19}= 863\ cups

8 0
3 years ago
The monthly income of Ram is Rs 40,000. If he paid Rs 8,000 as income tax. Find the rate of income tax.​
frosja888 [35]

Hello!

Rate of income tax = Tax paid / Monthly income

⇒ Rate = 8,000 / 40,000

⇒ Rate = 0.2

⇒ Rate = 20%

∴ The rate of income tax is 20%.

5 0
2 years ago
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