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3 years ago

HELP I WILL MARK YOU AS A BRAINLIEST I KNOW IM SO DUMB!!

Mathematics

2 answers:

lapo4ka [179]3 years ago

8 0

Answer: The answer would be 6.15.

-Convert 2 2/5 into a decimal: 2.40.

-Add 3.75 + 2.40.

-Your sum should be 6.15

monitta3 years ago

4 0

Answer:

6.15.

Step-by-step explanation:

3.75 + 2 2/5

= 3.75 + 2.40

= 6.15.

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What kind of triangle is 6, 8, and 9

Vika [28.1K]

Answer:

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2 years ago

Find exact values for sin θ and tan θ if cos θ = -4/9 and tan θ > 0.

julsineya [31]

Answer:

Part 1) $sin(\theta)=-\frac{\sqrt{65}}{9}$

Part 2) $tan(\theta)=\frac{\sqrt{65}}{4}$

Step-by-step explanation:

we have that

The cosine of angle theta is negative and the tangent of angle theta is positive

That means that the sine of angle theta is negative

step 1

Find $sin(\theta)$

we know that

$sin^{2}(\theta) +cos^{2}(\theta)=1$

we have

$cos(\theta)=-\frac{4}{9}$

substitute

$sin^{2}(\theta) +(-\frac{4}{9})^{2}=1$

$sin^{2}(\theta) +\frac{16}{81}=1$

$sin^{2}(\theta)=1-\frac{16}{81}$

$sin^{2}(\theta)=\frac{65}{81}$

square root both sides

$sin(\theta)=\pm\frac{\sqrt{65}}{9}$

Remember that

In this problem the sine of angle theta is negative

$sin(\theta)=-\frac{\sqrt{65}}{9}$

step 2

Find $tan(\theta)$

we know that

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

we have

$sin(\theta)=-\frac{\sqrt{65}}{9}$

$cos(\theta)=-\frac{4}{9}$

substitute the given values

$tan(\theta)=-\frac{\sqrt{65}}{9}:-\frac{4}{9}=\frac{\sqrt{65}}{4}$

3 0

3 years ago

One state leads the country in tart cherry production, producing 80 out of every 100 tart cherries each year. a. What percent o

Dafna1 [17]

So, to turn this into a percentage, we have to turn this into a decimal by dividing:
80/100 = 0.80
80% of tart cherries are produced in this state.

3 0

3 years ago

Help!

alex41 [277]

A) 5/2x^3-9/4x^2+7/2x-3/2
b) the ans. are not the same.

8 0

2 years ago

Which of the binomials below is a factor of this

Illusion [34]

Answer:

Step-by-step explanation:

Given

x² - 13x + 30

Consider the factors of the constant term (+ 30) which sum to give the coefficient of the x- term (- 13)

The factors are - 3 and - 10, since

- 3 × - 10 = + 30 and - 3 - 10 = - 13 , thus

x² - 13x + 30 = (x - 3)(x - 10) ← in factored form

Thus (x - 3) is a factor of the polynomial → A

7 0

3 years ago

Read 2 more answers