All categories

3 years ago

Please help: 3x+10=-5. What is x?

Mathematics

2 answers:

PIT_PIT [208]3 years ago

4 0

Subtract 10 from both sides
3x + (10-10) = -10 - 5
3x = -10 - 5
3x = -15
Divide both sides by 3
3x/3 = -15/3
X = -5

Rudiy273 years ago

3 0

Answer:

-5

Step-by-step explanation:

You might be interested in

trapezoid BIRD is dilated to form trapezoid FROG. What corresponding angles is congruent to angle BIR? Type the answer in the bo

alexdok [17]

The answer is FRO

B is congruent to F

I is congruent to R

R is congruent to O

D is congruent to G

3 0

3 years ago

G(n-7) if g(x) =x^2-5/3x

Leno4ka [110]

Instead of x, we write n - 7 in the function equation

$g(x)=x^2-\dfrac{5}{3}x\\\\g(n-7)=(n-7)^2-\dfrac{5}{3}(n-7)\\\\\text{use} (a-b)^2=a^2-2ab+b^2\\\text{and distributive property}\\\\=n^2-2(n)(7)+7^2+\left(-\dfrac{5}{3}\right)(n)+\left(-\dfrac{5}{3}\right)(-7)\\\\=n^2-14n+49-\dfrac{5}{3}n+\dfrac{35}{3}\\\\\text{combine like terms}\\\\=n^2+\left(-14n-1\dfrac{2}{3}n\right)+\left(49+11\dfrac{2}{3}\right)\\\\=n^2-15\dfrac{2}{3}n+60\dfrac{2}{3}$

8 0

3 years ago

Determine the value of x.

kvasek [131]

Answer:

25°

Step-by-step explanation:

The angle of a right triangle is always 90°. 90-35=51. 25 times 2 is 50 plus 1 is 51, so x is 25°.

5 0

3 years ago

Read 2 more answers

20. A ball is dropped from a height of a little over 5 feet, and the height is measured at small intervals. The table below show

nekit [7.7K]

Step 1:

a) Write the quadratic model

a = -15.64

b = -1.24

c = 5.23

$P(t)=-15.64t^2\text{ - 1.24t + 5.2}3$

b) t = 0.30

$\begin{gathered} P(t)=-15.64t^2\text{ - 1.24t + 5.2}3 \\ =\text{ -15.64 }\times0.3^2\text{ - 1.24}\times\text{ 0.3 + 5.2}3 \\ =\text{ -1.4076 - 0.372 + }5.23 \\ =\text{ 3.45} \end{gathered}$

c) t = 0.52 seconds

$\begin{gathered} p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ =\text{ -15.64}\times0.52^2\text{ - 1.23}\times0.52\text{ + 5.23} \\ =\text{ -4.23 - 0.64 + 5.23} \\ =\text{ 0.36} \end{gathered}$

d) 0.30 is more likely to be relaible.

$\begin{gathered} p(t)\text{ = 1} \\ p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ 1=-15.64t^2\text{ - 1.23t + 5.23} \\ -15.64t^2\text{ - 1.23t + 4.23 = 0} \\ t\text{ = 0.48222} \\ \text{t = 0.48 seconds} \end{gathered}$

5 0

1 year ago

If tan x=.67, and cos x=.83, what is sin x

Alexxandr [17]

Answer:

0.56

Step-by-step explanation:

sin x

tan x is defined as -------------

cos x

and we can solve this for sin x: sin x = (cos x)(tan x)

which here is: sin x = 0.83(0.67) = 0.56 (rounded up from 0.5561)

7 0

3 years ago