All categories

3 years ago

A, B, C, D, or E????

Mathematics

1 answer:

trasher [3.6K]3 years ago

5 0

Answer:

the answer is A hey what doing

You might be interested in

I need help with homework

Rasek [7]

What are the questions?

8 0

3 years ago

First to answer will be the brainliest I need the answer ASAP

tatuchka [14]

6b+2 I think I combined them and that’s what I got

3 0

3 years ago

Simplify completely x^2+7x-30/x+10

marta [7]

Answer:

(x-3)

Step-by-step explanation:

we have

$\frac{x^{2}+7x-30}{x+10}$

step 1

Simplify the numerator

Complete the square

Equate the equation to zero

$x^{2}+7x-30=0$

$x^{2}+7x=30$

$x^{2}+7x+3.5^{2}=30+3.5^{2}$

$x^{2}+7x+12.25=42.25$

Rewrite as perfect squares

$(x+3.5)^{2}=42.25$

Take square root both sides

$(x+3.5)=(+/-)6.5$

$x=-3.5(+/-)6.5$

$x=-3.5(+)6.5=3$

$x=-3.5(-)6.5=-10$

therefore

$x^{2}+7x-30=(x-3)(x+10)$

substitute in the numerator

$\frac{x^{2}+7x-30}{x+10}=\frac{(x-3)(x+10)}{x+10}=x-3$

8 0

4 years ago

SMART STUDENT PLEASEEEE

lawyer [7]

Answer:

Therefore,

$BC=y=10.61\ units\\\\AC=x=8.6\ units$

Step-by-step explanation:

Consider a Δ ABC with

m∠ B= 45°

m∠ C = 90°

AB = c = 15 cm

To Find:

BC = a = y ?

Solution:

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

$\angle A+\angle B+\angle C=180\\\\\angle B +35+90+=180\\\therefore m\angle A =180-125=55\°$

We know in a Triangle Sine Rule Says that,

In Δ ABC,

$\frac{a}{\sin A}= \frac{b}{\sin B}= \frac{c}{\sin C}$

substituting the given values we get

$\frac{a}{\sin 55}= \frac{b}{\sin 35}= \frac{15}{\sin 90}$

∴ $\frac{y}{\sin 55}= \frac{15}{1}\\\\y=\sin 55\times 15\\\\y=10.606\\\therefore BC = y = 10.61\ units$

Similarly for 'x',

$\frac{x}{\sin 35}= \frac{15}{1}$

$\therefore x =\sin 35\times 15\\\therefore x =0.5735\times 15\\\therefore x =8.6\\$

Therefore,

$BC=y=10.61\ units\\\\AC=x=8.6\ units$

6 0

3 years ago

Question 17

Anarel [89]

Answer:

D. 29

Step-by-step explanation:

When you plug -2 into the equation, you get 4(4) - 3(-2) +7, which is equal to 16+6+7 = 29

5 0

3 years ago

A, B, C, D, or E????​

A, B, C, D, or E????