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kolezko [41]
3 years ago
7

The area of the triangle below is 38.28 square meters. What is the length of the base?

Mathematics
1 answer:
Olenka [21]3 years ago
3 0

Answer:

8.8 m

Step-by-step explanation:

Area of triangle = \frac{1}{2} bh

38.28 = \frac{1}{2} * b * 8.7

b = 38.28 * 2 / 8.7

b = 8.8 m

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F(x)=8x^2-2x+3<br> g(x)=12x^2+4x-3<br> what is h(x)=f(x)-g(x)?
Trava [24]

Answer: h(x)=-4x^2-6x+6

Step-by-step explanation:

To find the function h(x), you need to subtract the function f(x)=8x^2-2x+3 and the function g(x)=12x^2+4x-3.

h(x)=f(x)-g(x)\\h(x)=8x^2-2x+3-(12x^2+4x-3)

Distribute the negative sign:

h(x)=8x^2-2x+3-12x^2-4x+3

Now you can add the like terms:

h(x)=-4x^2-6x+6

Therefore, you get that the function h(x) is:

 h(x)=-4x^2-6x+6

6 0
3 years ago
Read 2 more answers
simplify the exponential expression completely. pleeeease help me!!!!! thank you so so so much!!! *will give brainliest*
Marrrta [24]

Answer:

( C ) p5 / q4

Step-by-step explanation:

8 0
3 years ago
-36y=x^2 The directrix of the parabola is:
Aleksandr-060686 [28]
Here, the equation of parabola is: (-36y)=x^2
The standard form of parabola is:

(X-h)^2=4p(y-k).
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This a vertical parabola opening down, because p = -9 here.
Therefore ditectrix will be y= -9
6 0
3 years ago
Which recursive formula can be used to generate the sequence shown, where f(1) = 5 and n &gt; 1?
ASHA 777 [7]
Each term is minused 6

so
f(n)=f(n-1)-6
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4 0
3 years ago
The class scores of a history test have a normal distribution with a mean Mu = 79 and a standard deviation Sigma = 7. If Opal’s
e-lub [12.9K]

Using the normal distribution, we got that expression for the z-score of her test score is

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

<h3>What is Normal Probability Distribution?</h3>

it's a type of probability distribution which is  symmetric about the mean, it gives data near the mean are more frequent than data far from the mean.

Given that mean =\mu=79

and standard deviation =\sigma = 7

X=73

we know that formula of z-score is

z=\frac{X-\mu}{\sigma}

Hence Z-score can be calculated as

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

Using the normal distribution, we got that expression for the z-score of her test score is

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

To learn more about the normal distribution visit : brainly.com/question/24663213

3 0
2 years ago
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