All categories

4 years ago

Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0

Mathematics

1 answer:

mario62 [17]4 years ago

5 0

Answer:

Step-by-step explanation:

I have enclosed a picture of the quadratic formula because I cannot seem to write the proper formula since it wont let me

✯Hello✯

↪ Alright so first we need to work out values for A B AND C

↪ We need to rearrange this since its the wrong way around

↪ A = -3

B= -10

C= 5

↪ we substitute these values and we get x=0.44 and x=-3.78

❤Gianna❤

You might be interested in

You measure 33 backpacks' weights, and find they have a mean weight of 36 ounces. Assume the population standard deviation is 12

saul85 [17]

Answer:

$E=3.4363$

Step-by-step explanation:

#Given a significance level of $\alpha=1-CI=1-0.90=0.1$ and

$\bar x=36, \ \sigma=12.1 \ n=41,$ the critical value is, $z_\alpha_/_2=z_\alpha_/_0_._0_5=1.645$

#the margin of error can then be calculated as:

$E=z_\alpha_/_2\times\frac{\sigma}{\sqrt n}=1.645\times \frac{12.1}{\sqrt 33}\\\approx 3.4363$

Hence the margin of error is 3.4363

8 0

3 years ago

63.09 ÷ .00008<br><br>No rush on this, but if you know please respond, it will be appreciated.

mart [117]

Answer is 788, 625. Hope this helped!

3 0

3 years ago

Help two helpless triangles?

Illusion [34]

Answer:

see below

Step-by-step explanation:

Angle ACE = DCE since they are vertical angles

Angle A = Angle E parallel lines cut by a transversal form congruent alternate interior angles

Angle B = Angle D parallel lines cut by a transversal form congruent alternate interior angles

When all three angles are equal, the triangles are similar.

We can use ratios to find DE

DE CE

------- = ----------

AB AC

DE 8

------- = ----------

12 10

Using cross products

10 DE = 8*12

10 DE = 96

Divide by 10

DE = 9.6

3 0

3 years ago

Read 2 more answers

JfdxaMXDCJINCIZSCKZDXVSJOISACXKISZPIAnhCPKISZJCPKNSPKCN KPZSA

alexira [117]

Answer:

Jassjsjdhjajjjjajajajajjjajajajajajqjqjjqjsjsjajajajajjajajaja

7 0

3 years ago

Read 2 more answers

48 is what percent of 160

professor190 [17]

Percent formula : is/of = %/100

is = 48
of = 160
% = x

48/160 = x/100
cross multiply
160x = 4800
x = 4800/160
x = 30......so 48 is 30% of 160

4 0

3 years ago