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Iteru [2.4K]
3 years ago
15

The base length of a triangle is 4 feet and the height is 2 feet. What is the area of the triangle?

Mathematics
2 answers:
bagirrra123 [75]3 years ago
8 0

Answer:

4 sq ft

Step-by-step explanation:

1/2 x 4 x 2

Kamila [148]3 years ago
3 0

Answer: 4 square feet

Step-by-step explanation:

The formula for the area of a triangle is A=(bh)/2

In this example the base is 4 feet and the height is 2 feet. After plugging it into the formula you get the area equal to 4 square feet

You might be interested in
Which describes the correct procedure when converting a number from scientific notation to standard notation if the power of 10
jenyasd209 [6]

Answer:

A. Move the decimal point to the left

Step-by-step explanation:

Given that:

The scientific notation = 10⁻¹⁰

Let recall;

That the standard notation usually took the form of an inverse:

For example;

Let say 10⁻¹ will be \dfrac{1}{10} in scientific notation;

SO, \dfrac{1}{10} = 0.1

Now; we are given 10⁻¹⁰ as a scientific notation,

To standard notation, we get:

10^{-10} = \dfrac{1}{100}

= 0.01

Thus, it is true to say that the decimal point will be moved to the left side when converting a number from scientific notation to standard notation if the power of 10 is  -10.

4 0
2 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
Is number square root of 2,500 rational or irrational
ddd [48]
Rational

\sqrt{2500 }  = 50
4 0
3 years ago
Lin says that an octagon has six ideas.chris says that it has eight sides.whose statement is correct?
user100 [1]
Chris is correct.
An octagon has 8 sides.
A hexagon has 6 sides which is what Lin said.
5 0
3 years ago
What is the surface area?
Semenov [28]

Answer:

of what?

Step-by-step explanation:

3 0
3 years ago
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