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3 years ago

Pls help! it’s a test. I’ll give 10 points.

Mathematics

2 answers:

Anika [276]3 years ago

6 0

Answer:

Step-by-step explanation:

9*8 which is 72

Kaylis [27]3 years ago

3 0

Answer:

Correct choice: 72

Step-by-step explanation:

Multiplication

In math, to multiply means to add equal groups. For example, 5 groups of 7 people add up to 5*7=35 people.

When multiplying variables (letters), it's common to omit the cross (x) or dot (.) signs to indicate multiplication.

The expression cd, when c and d are separate variables, should be interpreted as c by d.

We are given c=9 and d=8, thus

cd = 9*8 = 72

Correct choice: 72

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Which of the following choices is equivalent to the equation below?

mrs_skeptik [129]

Answer:

2x-1 = 5x-14

Step-by-step explanation:

5(2x−1) = 5(5x−14)

Divide each side by 5

5/5(2x−1) = 5/5(5x−14)

2x-1 = 5x-14

7 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS GEOMETRY PROBLEM!! SHOW WORK!!

stiks02 [169]

Answer:

Solution given:

In right angled triangle

ABC.

with respect to <C=40°

opposite side=AB

adjacent=BC=DE=30ft

now

relationship between opposite side and adjacent

is given by tan angle

tan 40°=oppo/adjacent

tan40°=AB/30

AB=tan40*30

AB=25.2

Now 

height of flagpole =AB+BE=25.2+5=30.2ft

option 4th is a required answer

8 0

3 years ago

Easy Multiple Choice Questions about expressions and linear equations / ASAP / Will mark brainliest / 25 Points

nata0808 [166]

Answer:

1.C

2.A

3.D

4.C

5.B

6.A

7.B

8.C

9.A

10. D

Step-by-step explanation:

For Problem 1, the work is as follows:

$2(3x-1)+x\\Distribute\\6x-2+x\\7x-2$

For Problem 2, the work is as follows:

$(3x^{2} +6x+4) - (-x^{2} +2x-1)\\Distribute -\\(3x^{2} +6x+4) + (x^{2} -2x+1)\\Combine\\4x^{2} +4x+5$

For Problem 3, the work is as follows:

$5b-(a+c)^{2} \\5(3) - (-1+-4)^{2} \\15 - (-5)^{2} \\15-25\\-10$

For Problem 4, the work is as follows:

$4x-8 = -12\\+8\\4x = -4\\-4/4 = -1\\x = -1$

For Problem 5, the work is as follows:

$\frac{1}{2} (12x-6) = 2x-15\\Distribute\\\\6x - 3 = 2x -15\\+3\\6x = 2x -12\\-2x\\4x = -12\\-12/4\\x = -3$

For Problem 6, the work is as follows:

$17 *0.06 = 1.02\\17+1.02 = 18.02$

For Problem 7, the work is as follows:

$x = (2,0)\\y = (0,-1)\\\frac{rise}{run} \\y = \frac{1}{2} x-1$

For Problem 8, the work is as follows:

$y_{2} -y_{1} \\x_{2} -x_{1} \\-1-1 = -2\\0-(-2) = 2\\Slope = -1$

For Problem 9, the work is as follows:

$3y - 2x +6 = 0\\-3y\\(-3y - -2x+6)/-3\\y = \frac{2}{3} x -2$

For Problem 10, the work is as follows:

$(y-3) = -2(x-1)\\Distribute\\(y-3) = -2x+2\\+3\\y = -2x +5$

Hope this Helps!

4 0

3 years ago

Plez help! thank you so much!

grigory [225]

Answer:

you should get the buy the gig

5 0

3 years ago

What is the following product?

Rufina [12.5K]

Can u put a picture

4 0

3 years ago