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babymother [125]
2 years ago
12

Given f (x) = 2x - 10 forwhichvalueofxthat f (x) = -12

Mathematics
2 answers:
AysviL [449]2 years ago
6 0

Answer:

=-240..................

vitfil [10]2 years ago
5 0

Answer:

x = - 1

Step-by-step explanation:

f(x) = 2x - 10 and f(x) = - 12, then equating gives

2x - 10 = - 12 ( add 10 to both sides )

2x = - 2 ( divide both sides by 2 )

x = - 1

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If the domain is {0, 2, -6}, what is the range of y = -2x + 3?
jasenka [17]

Answer:

what is a domain

Step-by-step explanation:

please explain sorry

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=5%5Cfrac%7B1%7D%7B4%7D%20%20%2B%20%28%20%5Cfrac%7B3%7D%7B4%7D%20%20%2B%201%20%20%5Cfrac%7B5%7D
kobusy [5.1K]

Answer:

7 5/12

Step-by-step explanation:

5 1/4 + 3/4 + 1 5/12

We can add the first two terms

5 1/4 + 3/4

5 4/4

6

6 + 1 5/12

7 5/12

4 0
2 years ago
Please help, I really need help
7nadin3 [17]
So the teacher bought 1/4 of the brownie pan. And it came out to $4.
 I hope this helps! :)

5 0
3 years ago
Graph the image of trapezoid ABCD after a translation 3 units left .​
Kay [80]

Answer:

A: (-8, -1)

B: (2, -1)

C: (2, 5)

D: (-6, 5)

Step-by-step explanation:

If the trapezoid ABCD was able to translate 3 units to the left, we'll only need to calculate for all the input values!

Trapezoid in present:

A - -5

B - 5

C - 5

D - -3

Now move the units to the left!

Trapezoid in the future:

A - -8

B - 2

C - 2

D - -6

Then add the y values into the units

A: (-8, -1)

B: (2, -1)

C: (2, 5)

D: (-6, 5)

*************************************************

7 0
3 years ago
Two 5-year girls, Alyse and Jocelyn, have been training to run a 1-mile race. Alyse's 1 mile time A is approximately Normally di
tatyana61 [14]

Answer:

1.7 × 10⁻⁴

Step-by-step explanation:

The question relates to a two sample z-test for the comparison between the means of the two samples  

The null hypothesis is H₀:  μ₁ ≤ μ₂

The alternative hypothesis is Hₐ: μ₁ > μ₂

z=\dfrac{(\bar{x}_1-\bar{x}_2)-(\mu_{1}-\mu _{2} )}{\sqrt{\dfrac{\sigma_{1}^{2} }{n_{1}}-\dfrac{\sigma _{2}^{2}}{n_{2}}}}

Where;

\bar {x}_1 = 13.5

\bar {x}_2 = 12

σ₁ = 2.5

σ₂ = 1.5

We set our α level at 0.05

Therefore, our critical z = ± 1.96

For n₁ = n₂ = 23, we have;

z=\dfrac{(13.5-12)-(0)}{\sqrt{\dfrac{2.5^{2} }{23}-\dfrac{1.5^{2}}{23}}} = 3.5969

We reject the null hypothesis at α = 0.05, as our z-value, 3.5969 is larger than the critical z, 1.96 or mathematically, since 3.5969 > 1.96

Therefore, there is enough statistical evidence to suggest that Alyse time is larger than Jocelyn in a 1 mile race on a randomly select day and the probability that Alyse has a larger time than Jocelyn is 0.99983

Therefore;

The probability that Alyse has a smaller time than Jocelyn is 1 - 0.99983 = 0.00017 = 1.7 × 10⁻⁴.

8 0
3 years ago
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