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gizmo_the_mogwai [7]
3 years ago
6

4. Write the equation that describes the line in slope-intercept form.

Mathematics
1 answer:
My name is Ann [436]3 years ago
7 0
Answer: Y=-3(1)+4

Explained: formula for slope is y=Mx+b. M being slope, x being the x value, and b is the y value.
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An isosceles triangle has angle measures 40, 40, and 100. The side across from the 100 angle is 10 inches long. How long are the
Sophie [7]

Answer:

the answer is C- 6.53 inches

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP. WILL GIVE BRAINLIEST FOR CORRECT ANSWER
lozanna [386]
Are of shaded region = area of circle - area of segment
= \pi {r}^{2}  - ((\alpha  \div 360) \times \pi \times  {r}^{2} )
= \pi {r}^{2} (1 -  \alpha  \div 360)
r = 8.35 \\  \alpha  = 100
= 158.1666....
rounding \: up
area \: of \: shaded \: region \:  = 158.2 \: \: square ft
6 0
3 years ago
A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 119. Co
kumpel [21]

Answer:

a) 68.2%

b) 31.8%

c) 2.3%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 530

Standard Deviation, σ = 119

We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P(test scores is between 411 and 649)

P(411 \leq x \leq 649)\\\\= P(\displaystyle\frac{411 - 530}{119} \leq z \leq \displaystyle\frac{649-530}{119})\\\\= P(-1 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -1)\\= 0.841 - 0.159 = 0.682 = 68.2\%

b) P(scores is less than 411 or greater than 649)

P(x < 411 < x, x > 649)\\=1 = P(411 \leq x \leq 649)\\=1 - 0.682\\=0.318 = 31.8\%

c) P(score greater than 768)

P(x > 768)

P( x > 768) = P( z > \displaystyle\frac{768 - 530}{119}) = P(z > 2)

= 1 - P(z \leq 2)

Calculation the value from standard normal z table, we have,  

P(x > 768) = 1 -0.977 = 0.023 = 2.3\%

5 0
3 years ago
Let f(x) = x^2 − 3x − 7. Find f(−3).
IRINA_888 [86]

Answer:

11

Step-by-step explanation:

(-3)²-3(-3)-7

9+9-7

11

7 0
2 years ago
Read 2 more answers
A gift box in the shape of a rectangular prism measures 8 inches by 8 inches by 10 inches what is the least amount of wrapping p
Phantasy [73]
The first thing we must do for this case is to find the surface area of the rectangular prism.
 We have then:
 A = 2 * (l * h) + 2 * (h * w) + 2 * (w * l)
 Where,
 w: width
 l: long
 h: height
 Substituting values we have:
 A = 2 * (10 * 8) + 2 * (8 * 8) + 2 * (8 * 10)
 A = 448 in ^ 2
 Answer:
 
the least amount of wrapping paper needed to wrap the gift box answer is:
 
A = 448 in ^ 2
5 0
3 years ago
Read 2 more answers
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