What is the product of (6a + 7) (5a – 4)?

Answers

Answer 1

Answer:

30a²+11a−28

Step-by-step explanation:

(6a+7)(5a−4)

=(6a+7)(5a+−4)

=(6a)(5a) + (6a)(−4) + (7)(5a) + (7)(−4)

=30a² − 24a + 35a − 28

=30a² + 11a − 28

Hope I helped! (p.s. maybe brainliest answer)

Answer 2
This is ur answer in the picture below
What Is The Product Of (6a + 7) (5a 4)?

Related Questions

In ΔMNO, m = 5.6 cm, o = 4.6 cm and ∠O=39°. Find all possible values of ∠M, to the nearest 10th of a degree.

Answers

Answer:

Answer: 50∘ and 130∘

Step-by-step explanation:

deltamath:)

The measures of M are 50.0 and 130 degrees

The given parameters are:

[tex]\mathbf{m = 5.6cm}[/tex]

[tex]\mathbf{o = 4.6cm}[/tex]

[tex]\mathbf{\angle O = 39^o}[/tex]

The measure of angle M is calculated using the following sine formula

[tex]\mathbf{\frac{o}{sin\ O} = \frac{m}{sin\ M}}[/tex]

So, we have:

[tex]\mathbf{\frac{4.6}{sin\ 39} = \frac{5.6}{sin\ M}}[/tex]

Evaluate sin 39

[tex]\mathbf{\frac{4.6}{0.6293} = \frac{5.6}{sin\ M}}[/tex]

Cross multiply

[tex]\mathbf{sin\ M \times 4.6 = 5.6 \times 0.6293}[/tex]

[tex]\mathbf{sin\ M \times 4.6 = 3.5241}[/tex]

Divide both sides by 4.6

[tex]\mathbf{sin\ M = 0.7661}[/tex]

Take arc sin of both sides

[tex]\mathbf{M = sin^{-1}(0.7661)}[/tex]

[tex]\mathbf{M = 50.0}[/tex]

The other possible value of M is:

[tex]\mathbf{M = 180 -50.0}[/tex]

[tex]\mathbf{M = 130.0}[/tex]

Hence, the measures of M are 50.0 and 130 degrees

Read more about sine equations at:

https://brainly.com/question/14140350

hello trying to find Anokhi44 because the question I was talking to them got deleted soooooo and i can't find them .

2+2=

Answers

Answer:

4

Step-by-step explanation:

That sucks hope you find them.

what is the straight distance between point h and j on the grid below

Answers

Answer:

Step-by-step explanation:

8

HELP DUE SOON!!
Roberta grows pea plants, some in shade and some in sun. She picks 8 plants of each type at random and
records the heights.
Shade plant heights (in.)
Sun plant heights (in.)
7 12 11 9 8 11 12 10
1924 24 20 23 24 22 20
Express the difference in the means as a multiple of their ranges.
The difference in the means is how many
times the ranges.

Answers

Answer:

i think the answer is double in the blank

2+4(x+1)-x
2+4x+-x
6+4x-x
6+3x​

Answers

Answer:

What is your question

Step-by-step explanation:

Eileen plant a tree that is 2 meters tall in her yard which of the following is equivalent to meters following is equivalent to 2 meters?

(A) 200 mm

(B) 20 cm

(C) 200 km

(D) 2,000 mm

Answers

Answer:

D

Step-by-step explanation:

Answer: (d)

Step-by-step explanation:

Is this correct?? So, basically, it asking for a decimal equivalent to 920.35

Answers

Yes it is correct
:)

Forty families gathered for a fund-raising event. Suppose the individual contribution for each family is normally distributed with a mean and a standard deviation of $105 and $40, respectively. The organizers would call this event a success if the total contributions exceed $4,600. What is the probability that this fund-raising event is a success

Answers

Answer:

0.0571 = 5.71% probability that this fund-raising event is a success

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

The organizers would call this event a success if the total contributions exceed $4,600

Forty families, so sample mean above 4600/40 = 115.

Mean and a standard deviation of $105 and $40

This means that [tex]\mu = 105, \sigma = 40[/tex]

Sample of 40

This means that [tex]n = 40, s = \frac{40}{\sqrt{40}} = 6.3246[/tex]

What is the probability that this fund-raising event is a success?

Sample mean above 115, which is 1 subtracted by the pvalue of Z when X = 115. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{115 - 105}{6.3246}[/tex]

[tex]Z = 1.58[/tex]

[tex]Z = 1.58[/tex] has a pvalue of 0.9429

1 - 0.9429 = 0.0571

0.0571 = 5.71% probability that this fund-raising event is a success

Using traditional methods, it takes 8.6 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 26 students and observed that they had a mean of 8.4 hours with a standard deviation of 1.0. A level of significance of 0.1 will be used to determine if the technique performs differently than the traditional method. Assume the population distribution is approximately normal. Make the decision to reject or fail to reject the null hypothesis.

Answers

Answer:

t(s) is in the acceptance region. We accept H₀ we don´t have enough evidence to justify differences in the procedures

Step-by-step explanation:

Traditional procedure bring as μ  =  8,6 h

Sample Information:

Sample size   n  = 26

Sample mean  x  =  8,4

Sample standard deviation   s  = 1

With  n  = 26  unknown population standard deviation, and population with normal distribution we should use t-student test

then  n = 26      degree of freedom  df  =  n - 1    df  =  25

significance level 0,1  with that information we look in t-student table t (c) ( two tails test)

t(c) = - 1,708

Test Hypothesis

Null hypothesis                  H₀                 x =  μ

Alternative Hypothesis     Hₐ                 x ≠  μ

Alternative hypothesis indicates that the test should considered two tails

To calculate  t(s)

t(s)  =  (  x  -   μ ) / s/√n

t(s)  = ( 8,4  -  8,6 )/ 1/√26

t(s)  = - 0,2 *  5,09 / 1

t(s) =  - 1,019

Comparing |t(s)| and |t(c)|

1,019 < 1,708     |t(s)| <  |t(c)|

t(s) is in the acceptance region. We accept H₀ we don´t have enough evidence to justify differences in the procedures

Sean works for a company.
His normal rate of pay is £12 per hour.
When Sean works more than 8 hours a day, he is paid overtime for each hour he works
more than 8 hours.
Sean's rate of overtime pay per hour is 1 1/4 times his normal rate of pay per hour.
On Monday Sean worked for 10 hours.
Work out the total amount of money Sean earned on Monday.

Answers

Answer:

$126

Step-by-step explanation:

10-8=2(hours overtime)

1 1/4 × 12 = $15 per hour

2×15=$30

8×12=$96

$96+$30= $126

ALGEBRA

identify the terms, coefficients, and constants in the expression.

3+c+e

Answers

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

help me plssssssssss

Answers

9514 1404 393

Answer:

  a, c, d

Step-by-step explanation:

b is NOT equivalent, because the content of parentheses is evaluated first. That makes the expression equal to 2/15, which is not equal to the given expression.

  [tex]\dfrac{2}{(5\times 3}=\dfrac{2}{15}\ne\dfrac{2}{5}\times3=\dfrac{6}{5}[/tex]

__

Expressions (a) and (d) are exactly the same thing, written using different symbols for division. Expression (c) is the equivalent.

the area of one face of a cube is 36 square feet. what is the volume of a cube that has edges twice as long?

a. 144 feet cubed
b. 216 ft cubed
c. 1,728 ft cubed
d. 5832 ft cubed

Answers

144 feet cubed ok yes sir

(Find the VOLUME)

Please help I’m being ya I really don’t wanna stay up late (NO LIKE) (NO LYING)

Answers

Answer:

okay first of all I can't see anything and second of all if you wanna find answer to this the use calculator, multiply the 3 digits of length, width and height

PLEASE HELP GEOMETRY ASAP! 20 POINTS REAL ANSWERS ONLY OR WILL BE REPORTED AND DELETED WITH NO POINTS!!


I thought it was B, but it says it's wrong. Its definitely not D, so A or C?

Answers

9514 1404 393

Answer:

  A)  B = 37.2°, b = 309.1, c = 382.3

Step-by-step explanation:

You know the third angle must be ...

  B = 180° -131.6° -11.2°

  B = 37.2° . . . . . . eliminates choice D

You know the two missing sides are both longer than 99.3, eliminating choice C.

Since angle C is the largest angle, side c is the longest side, eliminating choice B.

By the process of elimination, we know the correct choice is A.

__

The Law of Sines will tell you the length of side C is related to the other triangle values by ...

  c/sin(C) = a/sin(A)

  c = (99.3 ft)×sin(131.6°)/sin(11.2°)

  c ≈ 382.3 ft . . . . matches choice A

1. Find the value of x in the figure below.
74°
2x​

Answers

Answer:

2x-7

Step-by-step explanation:

On an international exam; students are asked to respond to a variety of background questions. For the 41 nations that participated in the exam; the correlation between the percentage of items answered in the background questionnaire (used as a proxy for student task persistence) and mean score on the exam was 0.883. Does this suggest there is a linear relation between student task persistence and achievement score

Answers

Answer:

since r > 0.361

we reject H₀

Therefore, Yes, It does suggest that  there is a linear relation between student task persistence and achievement score, since r  [0.883 ] is greater than critical value for 30 [ 0.361 ]

Step-by-step explanation:

Given the data in the question;

n = 41

r = 0.883

H₀ : population correlation coefficient = 0 ( both are independent )

Hₐ : population correlation coefficient ≠ 0 ( there is a linear relation between student task persistence and achievement score )

critical value for n = 30 is 0.361

that means, for n = 41, critical value will be less than 362

now, since r > 0.361

we reject H₀

Therefore, Yes, It does suggest that  there is a linear relation between student task persistence and achievement score, since r  [0.883 ] is greater than critical value for 30 [ 0.361 ]

A glass has 6/8 cup of water. If Jack pours out 3/8 cup of the water, how much water will be left?​

Answers

Answer:

3/8

Step-by-step explanation:

........ur welcome.........

6/8 - 3/8

Answer:

3/8

Step-by-step explanation:

6/8-3/8 =38 your welcome guys;)

For which values of s would the product of s/5 ×10 be greater than 10?

6 and 7

4 and 5

2 and 3

0 and 1

Answers

Answer:

we will

turn around and find out

Step-by-step explanation:

Find the measures of the missing angles:

Answers

Answer:

m<1 = 70

m<2 = 110

m<3 = 82

Step-by-step explanation:

<1:

x + 75 + 35 = 180

x + 110 = 180

x = 70

<2:

<1 + x = 180

70 + x = 180

x = 110

<3:

The blank angle is 70 (b/c of 180 - 110) and vertical angles with <1

x + 70 + 28 = 180

x + 98 = 180

x = 82

1 cm= 4 meters model is 75 1/4 cm tall what is the actuall height

Answers

Answer:

Step-by-step explanation:Answer:

1cm = 50

2 cm = 50 x 2

3cm = 50 x 3

and the inverse:50m = 50/50 = 1cm

100m = 100/50 = 2cm

150m = 150/50 = 3cm

381m = 381/

A baker has 6 pounds of sugar. He divides into 3 containers. He then uses 1 container to bake pies. Which expression shows how many pounds of sugar the baker used?

Answers

You take the six pounds and divide it by the three containers to get 6 divided by 3 or 6/3
The answer is 6/3 for this particular word problem

I NEED ANSWERS WITH WORKOUT PLS ANYONE HELP / WRITE ON PAPER!

-giving brainlist

Answers

Answer:

I don't know if this is all correct, but I tried

Will give brainliest

Answers

Answer:

c

Step-by-step explanation:

Answer:

its a reflection over the x-axis

Simplify 2x - x + 4x​

Answers

the answer is 5x (combine like terms) also remember x=1 so it actually 2x - 1x +4x, hope that helps :)

Activity - 1
A. Identify the whether the object is a
representation of a point, Line, or plane.
1. Cellphone screen
2. edge of a wall
3. grain of sell
4. strand of straight hair
5. Tip of a crayon​

Answers

Answer:

1. Cellphone screen - plane

2. edge of a wall - line

3. grain of sell - point

4. strand of straight hair - line

5. Tip of a crayon​ -point

Step-by-step explanation:

1. Cellphone screen - It represents a 2 D plane surface. Hence it is a representation of a plane

2. edge of a wall - It is representation of a line

3. grain of sell - It is representation of a point

4. strand of straight hair - It is representation of a line

5. Tip of a crayon​ - It is representation of a point

In ΔJKL, j = 6.3 inches, l = 6.1 inches and ∠L=54°. Find all possible values of ∠J, to the nearest 10th of a degree.

Answers

Answer:

56.7 and 123.3

Step-by-step explanation:

delta math

The required value of  ∠J is 56.6° for the given triangle.

What is a Triangle?

Triangle is defined as a basic polygonal shape of a triangle that has three sides and three interior angles. It is one of the fundamental shapes in geometry and is represented by the symbolΔ.

Here, we are given:

j = 6.3 inches (the length of side JK)

l = 6.1 inches (the length of side KL)

∠L = 54° (the measure of angle L)

We want to find the possible values of ∠J (the measure of angle J).

Using the law of sines, we can write:

j/sin ∠J = l/sin ∠L

Substituting the given values, we get:

6.3/sin ∠J = 6.1/sin 54°

Multiplying both sides by sin ∠J and dividing by 6.1, we get:

sin ∠J = (6.3/6.1) sin 54°

sin ∠J ≈ 0.8354

∠J = sin⁻¹ (0.8354)

∠J = 56.6°

Therefore, the required value of  ∠J is 56.6°.

Learn more about the triangles here:

https://brainly.com/question/17997149

#SPJ3

2x=14?
solve for x.













solve for x.

Answers

Answer:

x=7

Step-by-step explanation:

The answer would be 7 because if u dice 2 and 14 it would be 7


What is the x-coordinate of the point on the line x = 3y - 1 with a y-coordinate of 4

Answers

Answer:

11

Step-by-step explanation:

when y = 4

x = 3(4) -1

x= 12-1 = 11

6th GRADE MATH! PLEASE HELP EEEEEEEEE

Answers

Answer:

-4m+10

Step-by-step explanation:

Answer:

-4m+10

explanation:

6m-10=-4m

+10

-4m+10

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