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3 years ago

What's the answer for x+2y-x-y+5x=

Mathematics

1 answer:

NISA [10]3 years ago

4 0

Answer:

Step-by-step explanation:

x + 2y - x - y - 5x

x - x + 2y - y - 5x

0 + y - 5x

- ( 5x - y ) or y - 5x or y = 5x

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Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP

hichkok12 [17]

Answer:

$f(x)=\frac{3}{5}(x+1)^2+4$

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

$f(x)=a(x-h)^2+k$

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

$f(x)=a(x+1)^2+4$

The parabola also passes through (4,19) hence it must satisfy its equation.

$19=a(4+1)^2+4$

$19-4=a(5)^2$

$15=25a$

We divide both sides by 25 to get:

$a=\frac{15}{25}= \frac{3}{5}$

Hence the quadratic function is:

$f(x)=\frac{3}{5}(x+1)^2+4$

6 0

2 years ago

Write an equation for each sentence 13 times the sum of a number and 5<br> is 91<br> I

Volgvan

Answer:13( n + 5) = 91

Step-by-step explanation: solve the parenthesis first and then multiply that by 13

7 0

2 years ago

Of the following fractions3/7, 5/8, 7/13, and 11/19 Which is the largest

Kobotan [32]

Answer:

5/8

Step-by-step explanation:

5/8=0.6.25

0.625> all the other numbers

8 0

1 year ago

Will give brainlist, help please

Minchanka [31]

Answer:

Step-by-step explanation:

It is blurry sorry man

3 0

2 years ago

Find x and y part 4 for these problems

Dvinal [7]

Answer:

Step-by-step explanation:

3) Sin30 = 11/x

x = 11/Sin30 = 11/0.5

x = 22

Tan 30 = 11/y

y = 11/tan30 = 11/0.5774

y = 19.1

4) Sin30 = 6/x

x = 6/Sin30 = 6/0.5

x = 12

Tan 30 = 6/y

y = 6/tan30 = 6/0.5774

y = 10.39

5) Sin45 = 9√2/y

y = 9√2/Sin45 = 9√2/(√2/2) =

9√2 × 2/√2 = 18

x = 18

Tan 45 = 9√2/x

x = 9√2/Tan 45 = 9√2/1

x = 9√2

Sin60 = 9/x

x = 9/Sin60 = 9/0.866

x = 10.39

Tan 60 = 9/y/2 = 18/y

1.7321 = 18/y

y = 18/1.7321

y = 10.39

6 0

2 years ago