All categories

2 years ago

Solve for x using the distributive property. 4(3x - 1) = 56

Mathematics

1 answer:

Liono4ka [1.6K]2 years ago

4 0

Answer:

Step-by-step explanation:

12x - 4 = 56

add 4 to each side

12x = 60

divide each side by 12

x = 5

You might be interested in

Rewrite the radical in exponential form

Kamila [148]

$\sqrt[4]{10v} = \sqrt[4]{10} \times \sqrt[4]{v}$

4 0

3 years ago

How to write 25 percent of N

Eva8 [605]

25÷100=0.25 0.25×n=the percentage Or 0.25n Or 0.25•n

8 0

3 years ago

Read 2 more answers

The graph that best represents y = e x + 1 is what?

velikii [3]

I'ts 5x, 5x and then x = 1 is 2 and then y = e equals 3 and then 2x + 3 = 5x

4 0

2 years ago

Given that P = (-7, 16) and Q = (-8, 7), find the component form and magnitude of vector QP .

Katyanochek1 [597]

Answer:

a)The component form is

$\vec {QP}=\binom{ - 1}{ - 8}$

b)The magnitude is √65

c) <2,14>

Step-by-step explanation:

Recall that:

$\vec {QP}=\vec {OP}-\vec{OQ}$

We substitute the position vectors to get:

$\vec {QP}=\binom{ - 8}{7} - \binom { - 7}{15}$

We subtract the corresponding components to obtain:

$\vec {QP}=\binom{ - 8 - - 7}{7 - 15}$

This gives:

$\vec {QP}=\binom{ - 8 + 7}{7 - 15}$

This simplifies to:

$\vec {QP}=\binom{ - 1}{ - 8}$

The magnitude of a vector in the component form:

$\binom{x}{y}$

$\sqrt{ {x}^{2} + {y}^{2} }$

This means:

$|\vec {QP}|= \sqrt{ {( - 1)}^{2} + {( - 8)}^{2} }$

This simplifies to:

$|\vec {QP}| = \sqrt{ 1 + 64 }$

$|\vec {QP}| = \sqrt{ 65 }$

c) We have the vectors u = <4, 8>, v = <-2, 6>.

We want to find:

u+v

This implies that:

u+v=<4,8>+<-2,6>

We add the corresponding components to get;

u+v=<4+-2,8+6>

This simplifies to:

u+v=<2,14>

7 0

3 years ago

How do I answer (4w^4z)(7w^5z^3)

White raven [17]

Answer:

28w^9z^4

Step-by-step explanation:

5 0

2 years ago